CN203406443U

CN203406443U - An elastically-compression-jointed power supply structure

Info

Publication number: CN203406443U
Application number: CN201320442784.4U
Authority: CN
Inventors: 刘超平
Original assignee: BEIDA JADE BIRD UNIVERSAL FIRE ALARM DEVICE Co Ltd
Current assignee: Jade Bird Fire Co Ltd
Priority date: 2013-07-24
Filing date: 2013-07-24
Publication date: 2014-01-22
Anticipated expiration: 2023-07-24

Abstract

The utility model discloses an elastically-compression-jointed power supply structure comprising a fixed PCB and a limiting structure for a spring. The spring is fixed on a structural member. The limiting structure comprises limiting buckles, elastic buckles, a left limiting column and a right limiting column on the two ends of a PCB groove, three-dimensional limiting columns for installing, and anti-compression column for preventing the spring from deforming excessively, wherein all the parts are disposed on the structural member. The limiting structure also comprises elastic contact surfaces, bent parts disposed on the middle part of the spring, and circular corners on the root part of the spring. The elastic contact surfaces are disposed on the top of the metallic spring and contact the PCB. In the elastically-compression-jointed power supply structure, the limiting structures are disposed on the structural member and the spring so as to achieve a positioning and elastic connecting function. An effect of preventing the spring from deforming excessively is achieved when the spring bears external pressure under an uncontrolled condition. And the spring is guaranteed to deform within a reasonable range. The elastically-compression-jointed power supply structure guarantees the reliability of elastic compression joint power supply.

Description

Elastic compression joint electric power-feeding structure

Technical field

The utility model relates to a kind of fire-fighting equipment field, specifically refers to the elastic compression joint electric power-feeding structure on fire alarm.

Background technology

At present, the elastic compression joint mode existing on market, shell fragment root fillet is too little, and on structural member, there is no shell fragment and PCB position limiting structure, when production and assembly, need apply downforce to wiring board, make under its PCB buckle that is connected to structural member, due to the position limiting structure that does not have PCB to be in place, cause being pressed onto a rear board owing to can continuing toward lower compression shell fragment under the effect of downforce, make shell fragment until be deformed to the plane place under shell fragment, exceeded between the deformed area of shell fragment, cause elastic failure, or loose contact between shell fragment and PCB after installing, the problem such as bad during fashion.

Utility model content

In view of this, the technical problems to be solved in the utility model is to provide a kind of elastic compression joint electric power-feeding structure, and elastic compression joint is fixed, and contact is good.

For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of electric power-feeding structure of elastic compression joint, comprise fixing PCB and the position limiting structure of shell fragment, this shell fragment is fixed on structural member, and described position limiting structure comprises limit fastener, Elastic buckle, the left and right limited post at PCB groove two ends, the three-dimensional limited post being in place being arranged on structural member and the pressure resistance column that prevents shell fragment excessive deformation; Described position limiting structure also comprises Elastic Contact face, the bending that is positioned at middle part setting that is arranged on metal clips top and contacts with PCB, the fillet that is positioned at shell fragment root.

Further, described Elastic buckle is provided with three.

Further, described limit fastener also has deformation plance structure.

Further, described limit fastener is provided with 3.

The technique effect that the utility model reaches is as follows: the electric power-feeding structure of the utility model elastic compression joint, on structural member and shell fragment, be provided with position limiting structure, and there is location and elasticity connection function.It's time to work as shell fragment and under uncontrollable condition, be subject to the effect that extraneous pressure prevents shell fragment excessive deformation, guarantee that shell fragment can only be in reasonable interval internal strain.Elastic compression joint electric power-feeding structure of the present utility model has not only guaranteed the reliability of elastic compression joint power supply, and has solved in essence the problem of loose contact, greatly reduces repair rate, has improved production qualification rate.

Accompanying drawing explanation

Fig. 1 is the structural member upper limit structure schematic diagram of the utility model elastic compression joint electric power-feeding structure;

Fig. 2 is the longitudinal sectional view at mounting elastic sheet place on Fig. 1;

Fig. 3 is the longitudinal sectional view at fixed structure place on structural member 1;

Fig. 4 is the structural representation of shell fragment;

Fig. 5 is the end view of Fig. 4;

Fig. 6 is the other direction structural representation of Fig. 1.

Embodiment

As shown in Fig. 1-Fig. 6, PCB is fixed on structural member 1 structural member, and by being fixed on metal clips 2 on structural member 1 to its power supply.On structural member 1, there are three PCB limit fastener 1-1; Structural member 1 has 3 PCB elasticity of plastics buckle 1-2, and elasticity of plastics buckle 1-2 has deformable surface 1-2-1 structure; The PCB groove two ends of structural member 1 have PCB left and right limited post 1-3; On structural member 1 and be positioned at PCB bottom and be provided with and make the PCB limited post 1-4 that is in place; On structural member 1, there is the pressure resistance column 1-5 that makes to prevent shell fragment 2 excessive deformations; The fixed structure 1-6 also on structural member 1 with fixing metal shell fragment.At metal clips 2 upper tops, there is the structure with PCB Elastic Contact face 2-1; Shell fragment 2 middle parts have bending 2-2 structure; The root of shell fragment 2 has fillet 2-3 structure; Shell fragment has the fixed structure 2-4 being connected with structural member 1.

During production assembling, first PCB one end is inserted in limit fastener 1-1, then at other end end face, exert pressure and make PCB first squeeze and open deformation plance 1-2-1 structure, be then deformed face 1-2-1 structure bottom surface and push down, thereby PCB is fixed in structural member 1.After being in place, by the 1-4 confined planes of structural member 1, withstood PCB, can not continue to move down, shell fragment 2 just can not continue distortion yet like this, the structural design of shell fragment 2 has guaranteed it is now in reasonably between deformed area, after therefore PCB is installed, shell fragment can normally lean on shell fragment 2 and PCB close contact, realizes the power supply to PCB contact.And the pressure resistance column 1-5 structure of structural member 1 plays the effect that prevents shell fragment excessive deformation when shell fragment is subject to extraneous pressure under uncontrollable condition, guarantee that shell fragment can only be in reasonable interval internal strain.Elastic compression joint electric power-feeding structure of the present utility model has not only guaranteed the reliability of elastic compression joint electric supply installation, and has solved in essence the problem of loose contact, greatly reduces repair rate, has improved production qualification rate.

The above, be only preferred embodiment of the present utility model, is not intended to limit protection range of the present utility model.

Claims

1. the electric power-feeding structure of an elastic compression joint, comprise fixing PCB and the position limiting structure of shell fragment, this shell fragment is fixed on structural member, it is characterized in that, described position limiting structure comprises limit fastener, Elastic buckle, the left and right limited post at PCB groove two ends, the three-dimensional limited post being in place being arranged on structural member and the pressure resistance column that prevents shell fragment excessive deformation; Described position limiting structure also comprises Elastic Contact face, the bending that is positioned at middle part setting that is arranged on metal clips top and contacts with PCB, the fillet that is positioned at shell fragment root.

2. the electric power-feeding structure of elastic compression joint as claimed in claim 1, is characterized in that, described Elastic buckle is provided with three.

3. the electric power-feeding structure of elastic compression joint as claimed in claim 1, is characterized in that, described limit fastener also has deformation plance structure.

4. the electric power-feeding structure of elastic compression joint as claimed in claim 1, is characterized in that, described limit fastener is provided with 3.