CN221261764U - Fire alarm device and power distribution equipment - Google Patents

Abstract

The utility model relates to the technical field of fire safety, and discloses a fire alarm device and power distribution equipment, wherein the fire alarm device comprises: the thermal shrinkage bag comprises a base body, an alarm circuit, a thermal shrinkage bag and a trigger piece, wherein the alarm circuit comprises a wire, a power supply and an alarm assembly which are sequentially connected onto the wire, trigger conductors are respectively connected to two ends of the wire, the power supply, the alarm assembly and the two trigger conductors are all arranged on the base body, the two trigger conductors are at least partially exposed on the outer surface of the base body, the two trigger conductors are not conducted, the trigger piece is arranged on the thermal shrinkage bag, and when the thermal shrinkage bag is heated, the thermal shrinkage bag is contracted, so that the trigger piece is displaced to conduct the two trigger conductors. The fire alarm device provided by the utility model is suitable for a data center, the triggering piece is communicated with the two conductors through the characteristics of the heat shrinkage bag, and the triggering piece is connected with the two conductors, so that the alarm device is triggered, the interference of other environmental factors is avoided through the characteristics of the heat shrinkage bag, and the fire alarm device is simple in structure, safe and reliable.

Description

Fire alarm device and power distribution equipment

Technical Field

The utility model relates to the technical field of fire safety, in particular to a fire alarm device and power distribution equipment.

Background

At present, general computer room equipment transmits fire signals to a fire-fighting host through a smoke detector and a temperature detector to carry out fire-fighting fire alarming, and part of advanced data centers are provided with an extremely early warning system and a residual current type electric fire monitoring detector to transmit the fire signals.

The temperature sensing and smoke sensing detector is generally installed at the high place of computer lab, for example, the ceiling or the furred ceiling, reaches temperature sensing or smoke sensing detector's alarm threshold when air temperature or smoke concentration in the computer lab reaches certain limit, just can trigger fire alarm, so temperature sensing and smoke sensing detector is bulky, and can only test the inside temperature and the smoke concentration of whole computer lab, is difficult to in time receive to the local fire signal of computer lab equipment.

The residual current type electric appliance fire monitoring detector can be installed inside power distribution equipment, and can monitor residual current, temperature, current and other data indexes of the electric equipment to obtain fire signals through communication with the power distribution equipment.

Disclosure of utility model

The purpose of the utility model is that: the fire alarm device can alarm in time, is not interfered by environmental factors, and is simple in structure, safe and reliable.

In order to achieve the above object, a first aspect of the present utility model provides a fire alarm device comprising: the thermal shrinkage type electric power alarm comprises a base body, an alarm circuit, a thermal shrinkage bag and a trigger piece, wherein the alarm circuit comprises a wire, a power supply and an alarm assembly which are sequentially connected to the wire, two ends of the wire are respectively connected with a trigger conductor, the power supply, the alarm assembly and the two trigger conductors are all arranged on the base body, the two trigger conductors are at least partially exposed on the outer surface of the base body, and the two trigger conductors are not conducted;

The thermal shrinkage bag is arranged on the outer surface of the base body, covers the peripheries of the two trigger conductors, and the trigger piece is arranged on the thermal shrinkage bag, so that the trigger piece can displace to conduct the two trigger conductors when the thermal shrinkage bag contracts after being heated.

Further, the triggering piece is a conductive sheet, when the thermal shrinkage bag is heated, the thermal shrinkage bag is shrunk, and the conductive sheet can be displaced to conduct the two triggering conductors.

Further, the conductive sheet can magnetically attract with both of the trigger conductors.

Further, the fire alarm device further comprises a supporting shell, the supporting shell is an insulating piece, and the two triggering conductors are installed on the base body through the supporting shell.

Further, the heat shrinkage bag is mounted on the base body through the support shell.

Further, the base is provided with an installation part, and the installation part is a hanging hole formed in the base or a magnetic attraction piece arranged on the base.

Further, the alarm assembly comprises a buzzer and/or an alarm lamp.

Further, the alarm circuit further comprises a connecting terminal for connecting an external power supply, and two ends of the connecting terminal are respectively connected with the circuit and located at two sides of the power supply.

Still further, the fire alarm device further comprises a monitoring system connected to the connection terminal.

In a second aspect, the present utility model provides a power distribution apparatus comprising a cabinet, an electrical component mounted within the cabinet, and the fire alarm device mounted within the cabinet.

Compared with the prior art, the fire alarm device has the beneficial effects that: setting an alarm circuit which is disconnected, connecting triggering conductors which are not mutually conducted at two ends of the alarm circuit respectively, setting a heat shrinkage bag at the position of each triggering conductor, setting a triggering piece on the heat shrinkage bag, enabling the heat shrinkage bag to drive the triggering piece to displace after being heated and shrunk, triggering the two triggering conductors to be conducted, and enabling the alarm circuit to be conducted, and enabling an alarm component to send an alarm; the interference of other environmental factors is avoided through the material characteristics of the heat shrinkage bag, and the heat shrinkage bag is simple in structure, safe and reliable.

Drawings

FIG. 1 is an overall schematic view of a fire alarm device according to an embodiment of the present utility model;

FIG. 2 is a circuit diagram of a fire alarm device according to an embodiment of the present utility model;

In the figure, 1, a seat body; 2. an alarm circuit; 201. a power supply; 202. an alarm assembly; 2021. a buzzer; 2022. an alarm lamp; 203. a trigger conductor; 204. a connection terminal; 3. a heat shrinkage bag; 4. a trigger; 5. a support housing; 6. and a mounting part.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "transverse", "longitudinal", and the like are used for convenience in describing the present utility model and simplifying the description only, and are not intended to limit the present utility model to the specific orientations or configurations and operations of the indicated devices, elements or components, and thus should not be construed as limiting the present utility model. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, the terms "provided," "disposed," "connected," and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or of unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The technical scheme of the utility model is further described below with reference to the embodiment and the attached drawings.

A first aspect of the present utility model provides a fire alarm device, as shown in fig. 1 and 2, comprising: the thermal shrinkage bag comprises a base body 1, an alarm circuit 2, a thermal shrinkage bag 3 and a trigger piece 4, wherein the alarm circuit 2 comprises a wire, a power supply 201 and an alarm component 202 which are sequentially connected to the wire, two ends of the wire are respectively connected with a trigger conductor 203, the power supply 201, the alarm component 202 and the two trigger conductors 203 are all arranged on the base body 1, at least part of the two trigger conductors 203 are exposed to the outer surface of the base body 1, and the two trigger conductors 203 are not conducted; the heat shrinkage bag 3 is arranged on the outer surface of the base body 1, and covers the peripheries of the two trigger conductors 203, the trigger piece 4 is arranged on the heat shrinkage bag 3, and when the heat shrinkage bag 3 is heated, shrinkage can occur, so that the trigger piece 4 can displace to conduct the two trigger conductors 203.

Based on the above technical scheme, when the temperature of the environment is too high, the heat shrinkage bag 3 is heated to shrink and fit with the two trigger conductors 203, and the trigger piece 4 moves along with the shrinkage movement of the heat shrinkage bag 3, moves onto the two trigger conductors 203 and conducts the two trigger conductors 203, so that the alarm assembly 202 is triggered.

In some preferred embodiments, the heat shrink ratio is preferably 3:1 to 5:1. The thermal shrinkage ratio is preferably 4:1, if a larger thermal shrinkage ratio is selected, the thermal shrinkage bag 3 is easy to shrink to an excessive extent after being heated, the thermal shrinkage bag is easy to crack when being attached to the triggering conductor 203, the conducting strip is easy to shift, and the contact effect with the conductor is poor; if the smaller heat shrinkage ratio is selected, the heat shrinkage degree of the heat shrinkage bag 3 is insufficient, the bonding degree of the triggering piece 4 and the triggering conductor 203 after shrinkage cannot be ensured, the contact is poor, and the alarm effect is poor.

Preferably, the triggering element 4 is a conductive sheet, which contracts when the heat shrinkage bag 3 is heated, so that the conductive sheet can displace to conduct the two triggering conductors 203.

More preferably, the conductive sheet is capable of magnetically attracting in cooperation with the two trigger conductors 203. If the temperature is too high and a fire disaster occurs, the thermal shrinkage bag 3 is burnt out, the magnetic conductive sheet can be guaranteed to be tightly attached to the trigger conductor 203, and the alarm assembly 202 can continuously send out an alarm signal.

In some alternative embodiments, the triggering element may be configured as a non-conductive pressing block, and correspondingly, at least one of the two triggering conductors 203 may be in a shrapnel shape or slidably mounted on the base 1, and when the heat shrinkage bag 3 is shrunk when encountering heat, the triggering element 4 may press the triggering conductor 203 in the shrapnel shape into conduction with the other triggering conductor 203, or the triggering element 4 may push the triggering conductor 203 slidably mounted on the base 1 to be conducted with the other triggering conductor 203.

Preferably, the fire alarm device further comprises a supporting housing 5, the supporting housing 5 is an insulating member, the two trigger conductors 203 are both installed on the base 1 through the supporting housing 5, and the supporting housing 5 is used for providing a certain supporting effect for the trigger conductors 203, so as to avoid shaking or shifting when moving.

In some preferred embodiments, the support housing 5 is made of a flame retardant plastic material. The fire is prevented by burning the support housing 5 and disabling the alarm circuit 2.

More preferably, the heat shrinkage bag 3 is mounted on the base 1 through the supporting housing 5, so that the trigger piece 4 can accurately and closely fit with the two trigger conductors 203 when the heat shrinkage bag 3 is subjected to heat shrinkage.

Preferably, the base 1 is provided with a mounting portion 6, and the mounting portion 6 is a hanging hole formed in the base 1 or a magnetic attraction piece formed in the base 1. The installation part 6 is arranged to facilitate the rapid installation of the fire alarm device inside the power distribution equipment.

Preferably, the alarm assembly 202 includes a buzzer 2021 and/or an alarm lamp 2022.

Illustratively, referring to fig. 2, the alarm assembly includes a buzzer 2021 and an alarm lamp 2022 disposed in parallel, the buzzer 2021 is mounted inside the housing 1, and the alarm lamp 2022 is mounted outside the housing 1. The setting of the buzzer 2021 can make the maintainer realize that the abnormal high temperature problem occurs in the power distribution machine room in time, and the setting of the alarm lamp 2022 can make the maintainer accurately position to which power distribution equipment has the abnormal high temperature problem.

Alternatively, in some embodiments, the buzzer 2021 and the alarm lamp 2022 may be disposed in series.

Preferably, the alarm circuit 2 further comprises a connection terminal 204 for connecting to the external power supply 201, both ends of the connection terminal 204 being connected to the circuit on both sides of the power supply 201, respectively. The connection terminal 204 of the external power supply 201 is provided, and the power supply 201 can be used for supplying power to the fire alarm device or supplying power to the fire alarm device through the external power supply 201.

More preferably, the fire alarm device further comprises a monitoring system (not specifically shown in the drawings) connected to the connection terminal 204. The monitoring system is provided with the external power supply, so that the power can be supplied to the alarm circuit 2, whether the alarm circuit 2 has a short circuit phenomenon or not can be determined by monitoring whether current is generated or not, and the alarm function of the monitoring system is triggered; i.e. the connection terminal 204 serves both as a power supply terminal and as a transmission terminal for alarm signals.

It should be noted that when the monitoring system is connected to the connection terminal 204, the power source connected to the wire should be removed first, so as to avoid line fault.

In a second aspect, the present utility model provides a power distribution apparatus comprising a cabinet, an electrical component mounted within the cabinet, and a fire alarm device mounted within the cabinet.

When the warning lamp 2022 is included in the fire alarm device, the warning lamp needs to be provided outside the cabinet.

In summary, the embodiment of the utility model provides a fire alarm device, which is provided with an off alarm circuit 2, two ends of the alarm circuit 2 are respectively connected with a trigger conductor 203 which is not mutually conducted, a heat shrinkage bag 3 is arranged at the position of the trigger conductor 203, a trigger piece 4 is arranged on the heat shrinkage bag 3, the heat shrinkage bag 3 can drive the trigger piece 4 to displace after being heated and shrunk, and the two trigger conductors 203 are triggered to conduct, so that the alarm circuit 2 is conducted, an alarm is sent out by an alarm component 202, the interference of other environmental factors is avoided through the material characteristics of the heat shrinkage bag 3, and the fire alarm device is simple in structure, safe and reliable; the fire alarm device is suitable for a data center, can be quickly installed in various places inside power distribution equipment through the installation part 6, is convenient and flexible to install, can be installed in multiple points and in a short distance, and can timely find fire signals.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. A fire alarm device, comprising: the thermal shrinkage type electric power alarm comprises a base body, an alarm circuit, a thermal shrinkage bag and a trigger piece, wherein the alarm circuit comprises a wire, a power supply and an alarm assembly which are sequentially connected to the wire, two ends of the wire are respectively connected with a trigger conductor, the power supply, the alarm assembly and the two trigger conductors are all arranged on the base body, the two trigger conductors are at least partially exposed on the outer surface of the base body, and the two trigger conductors are not conducted;

The thermal shrinkage bag is arranged on the outer surface of the base body, covers the peripheries of the two trigger conductors, and the trigger piece is arranged on the thermal shrinkage bag, so that the trigger piece can displace to conduct the two trigger conductors when the thermal shrinkage bag contracts after being heated.

2. The fire alarm device of claim 1 wherein the trigger member is a conductive sheet which contracts when the heat shrink bag is heated, such that the conductive sheet is displaced to conduct the two trigger conductors.

3. A fire alarm device as claimed in claim 2, wherein the conductive sheet is magnetically attractable in cooperation with two of the trigger conductors.

4. The fire alarm device of claim 1 further comprising a support housing, the support housing being an insulating member, both of the trigger conductors being mounted to the housing through the support housing.

5. The fire alarm device of claim 4 wherein the heat shrink bag is mounted to the housing through the support housing.

6. The fire alarm device according to claim 1, wherein the base is provided with a mounting portion, and the mounting portion is a hanging hole formed in the base or a magnetic attraction piece formed in the base.

7. A fire alarm device as claimed in claim 1, wherein the alarm assembly comprises a buzzer and/or a warning light.

8. The fire alarm device according to claim 1, wherein the alarm circuit further comprises connection terminals for connecting an external power source, both ends of the connection terminals being connected to the wires at both side positions of the power source, respectively.

9. The fire alarm device of claim 8 further comprising a monitoring system connected to the connection terminal.

10. A power distribution apparatus, comprising: a cabinet, an electrical component mounted within the cabinet and a fire alarm device as claimed in any one of claims 1 to 9, the fire alarm device being mounted within the cabinet.