CN203405899U

CN203405899U - A point-type temperature-sensitive firer detector

Info

Publication number: CN203405899U
Application number: CN201320443232.5U
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 a point-type temperature-sensitive firer detector comprising a top housing and a temperature-sensitive detector temperature-sensitive disc. The top housing is a step-shaped housing. Multiple through holes are disposed on the circumferences of the steps. Thermal air flow under and obliquely below the detector fast reaches a thermistor and thermal air flow around the detector in the horizontal direction fast reaches the thermistor. The detector has good consistency of sensing speed to thermal air flow in eight orientations. The thermistor is exposed to the taper groove of the temperature-sensitive disc as much as possible in order to increase the detector response speed to the thermal air flow.

Description

Point type heat fire detector

Technical field

The utility model relates to a kind of detection apparatus, relates in particular to a kind of heat fire detector device.

Background technology

In existing heat detector technology, the structure majority of detector is that cover top portion is the flat board of a sealing, the surrounding of shell has perforate to enter thermistor Perception Area for thermal current, this structure can make the thermal current coming from detector surrounding, thermistor is perception timely, but having individual blind area is exactly that the thermal current coming under detector is difficult for arriving fast thermistor, and detector can be slow in reacting in this case.

The core parts of detector are thermistors, its can perception temperature variation around, when environment temperature reaches predetermined alarm threshold value, detector sends fire signal can to matching used controller with it.Therefore the thermal current that surrounding is come that the design of the shell of detector will be fast is as far as possible directed to thermistor, can keep out again the electrostatic experiment that GB requires simultaneously.

Utility model content

In view of this, the technical problems to be solved in the utility model is to provide a kind of point type heat fire detector, and the thermal current of surrounding is directed to thermistor.

For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of point type heat fire detector, comprises upper shell and heat detector temperature-sensitive disc, and described upper shell is step shell, along step, circumferentially offers a plurality of through holes.

Further, described through hole has outside subtended angle.

Further, described upper shell is provided with contour step, and the through hole on step is along being circumferentially evenly provided with 8.

Further, between described adjacent through hole, be provided with air-flow guiding facade.

Further, the central authorities at described heat detector temperature-sensitive disc offer temperature-sensitive electricity group hole.

Further, the surrounding in described temperature-sensitive electricity group hole is provided with conical socket.

The technique effect that the utility model reaches is as follows: the utility model point type heat fire detector, comprise upper shell and heat detector temperature-sensitive disc, and described upper shell is step shell, along step, circumferentially offers a plurality of through holes.Below detector and tiltedly, next thermal current arrives thermistor fast, the thermal current coming from detector horizontal direction surrounding arrives thermistor fast, the induction speed high conformity of 8 orientation of detector to thermal current, the conical socket thermistor that exposes as much as possible of temperature-sensitive disc, improves the response speed of detector to thermal current.

Accompanying drawing explanation

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model heat fire detector;

Fig. 2 is the cut-open view of the utility model heat fire detector;

Fig. 3 is the utility model heat fire detector upper case structure schematic diagram;

Fig. 4 is another angle schematic diagram of the utility model heat fire detector upper case structure;

Fig. 5 is the structural representation of the utility model heat fire detector temperature-sensitive disc;

Fig. 6 is the cut-open view of the utility model heat fire detector temperature-sensitive disc.

Embodiment

As shown in Fig. 1-Fig. 6, heat fire detector device comprises that upper shell 1, temperature-sensitive disc 4, light-guiding pillar 2, middle button 6, base 11, PCB electric appliance component 5(are containing hot PCB and thermistor), electroconductive elastic sheet 7, connecting terminal components 8(be containing terminal, screw, nut) totally 8 parts.Together with wherein connecting terminal components 8 is fixed with base 11, form the latter half of product; Remaining part fits together the first half that forms product.The upper and lower half of product divides the mutual interlock of buckle 6 by arranging to be fixedly connected with.

The utility model point type heat fire detector, comprises upper shell 1 and heat detector temperature-sensitive disc 4, and upper shell 1 is step shell, along a plurality of through hole 1-3 of circumferentially offering of step.Through hole 1-3 has outside subtended angle.At the present embodiment, upper shell is provided with 4 contour steps, and the through hole 1-3 on step is along being circumferentially evenly provided with 8.Between adjacent through hole 1-3, be provided with air-flow guiding facade 1-5.The central authorities of heat detector temperature-sensitive disc 4 offer temperature-sensitive electricity group hole 2-1-1.The surrounding of temperature-sensitive electricity group hole 2-1-1 is provided with conical socket 2-1-2.

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

Claims

1. a point type heat fire detector, comprises upper shell and heat detector temperature-sensitive disc, it is characterized in that, described upper shell is step shell, along step, circumferentially offers a plurality of through holes.

2. point type heat fire detector as claimed in claim 1, is characterized in that, described through hole has outside subtended angle.

3. point type heat fire detector as claimed in claim 1, is characterized in that, described upper shell is provided with contour step, and the through hole on step is along being circumferentially evenly provided with 8.

4. point type heat fire detector as claimed in claim 1, is characterized in that, is provided with air-flow guiding facade between described adjacent through hole.

5. point type heat fire detector as claimed in claim 1, is characterized in that, in the central authorities of described heat detector temperature-sensitive disc, offers temperature-sensitive electricity group hole.

6. point type heat fire detector as claimed in claim 5, is characterized in that, the surrounding in described temperature-sensitive electricity group hole is provided with conical socket.