CN204516526U - For the resistance frame bottom intelligent anti-air-raid and disaster-preventing alarm control rack - Google Patents

Abstract

The utility model relates to an air defense and disaster prevention alarm control cabinet, and discloses a resistance frame used for the bottom of an intelligent air defense and disaster prevention alarm control cabinet, which comprises a rectangular shell (1) and is fixed inside the rectangular shell (1). resistor (2), at least one fan (3) and at least two U-shaped brackets (4) are fixed on the inner side of the bottom surface of the rectangular housing (1), and the opening of the U-shaped brackets (4) faces the bottom surface of the rectangular housing (1) and the U The shaped brackets (4) are distributed on both sides of the fan (3), and the two ends of the resistor (2) are respectively fixed on the U-shaped brackets (4) on both sides of the fan (3). The utility model can avoid the impact of the resistance on the integrated circuit in the cabinet, and at the same time enables the resistor to have a good heat dissipation effect, thereby improving the stability and safety of the resistor and the entire integrated circuit.

Description

Resistor frame for the bottom of the intelligent air defense and disaster prevention alarm control cabinet

technical field

The utility model relates to an air defense and disaster prevention alarm control cabinet, in particular to a resistance frame used for the bottom of an intelligent air defense and disaster prevention alarm control cabinet.

Background technique

The large resistor installed in the intelligent air defense and disaster prevention alarm control cabinet is connected to the power amplifier to realize the no-load operation in the simulated state. Due to the large power consumption of the resistor, if it is tested for a long time, the thermal effect of the current will intensify. If the heat is not dissipated in time, it will endanger the stability and safety of the resistor and the entire integrated circuit. Therefore, it is necessary to design a resistance frame that is conducive to heat dissipation to reduce the harm caused by the thermal effect of the current.

Contents of the invention

The utility model aims at the problem that the resistance in the air defense and disaster prevention alarm control cabinet in the prior art cannot be dissipated in time, thus resulting in poor stability and safety of the resistor and the entire integrated circuit, and provides an intelligent air defense system. Resistor rack at the bottom of the disaster alarm control cabinet.

In order to solve the above technical problems, the utility model is solved through the following technical solutions:

The resistance frame used for the bottom of the intelligent air defense and disaster prevention alarm control cabinet includes a rectangular shell and a resistor fixed inside the rectangular shell. At least one fan and at least two U-shaped brackets are fixed on the inner side of the bottom of the rectangular shell. The U-shaped bracket The opening faces the bottom surface of the rectangular housing and the U-shaped brackets are distributed on both sides of the fan, and the two ends of the resistor are respectively fixed on the U-shaped brackets on both sides of the fan. The resistor inside the rectangular housing is fixed by a U-shaped bracket fixed on its bottom surface. The U-shaped bracket is provided with mounting holes for installing the resistor. The U-shaped bracket is located on both sides of the fan and the two ends of the resistor are installed on the U on both sides of the fan. Shaped bracket, so as to ensure that the resistor is located directly above the fan, so that the resistor can accelerate heat dissipation during operation, and improve the stability and safety of the resistor and the entire integrated circuit. The resistor is installed through a U-shaped bracket. On the one hand, because the U-shaped bracket is directly bent from a long strip plate, its production process is simple and the production cost is low; on the other hand, it also allows the resistor to be placed above the fan to improve the heat dissipation efficiency of the resistor .

Preferably, a plurality of strip-shaped heat dissipation holes are evenly arranged on the bottom surface and four side surfaces of the rectangular housing. The cooling holes can further increase the heat dissipation speed of the resistor, so that the stability and safety of the resistor and the entire integrated circuit are improved.

Preferably, dust covers are fixed at the cooling holes on the four sides of the rectangular housing, and the dust covers are located outside the sides of the rectangular housing. The dust cover is used to prevent dust or other impurities from entering the resistor frame, to prevent dust and other impurities from affecting the work of the resistor and the fan, and to prevent dust accumulation from blocking the heat dissipation holes and affecting heat dissipation efficiency.

Preferably, the tops of the two shorter side walls of the rectangular housing are provided with mounting plates for mounting the top cover, and the mounting plates are parallel to the bottom surface of the rectangular housing. By installing the top cover, the resistors and fans inside the resistor frame can be protected, and at the same time, the internal parts of the resistor frame can be further protected from dust.

Preferably, a U-shaped support is fixed outside the bottom surface of the rectangular housing, and the opening of the U-shaped support faces the bottom surface. By setting the support at the bottom of the rectangular housing, the bottom surface of the rectangular housing can be ventilated and dissipated smoothly, and it can also play a certain role in moisture-proofing the entire resistor frame, while reducing wear on the bottom surface of the resistor frame and increasing the service life of the entire resistor frame.

Due to the adoption of the above technical scheme, the utility model has remarkable technical effects:

The utility model is arranged under the air defense and disaster prevention alarm control cabinet, which is far away from the integrated circuit board in the cabinet, so as to avoid the impact of resistance on the integrated circuit in the cabinet. At the same time, the utility model designs the resistance frame into a hollow form, so that the resistance in the resistance frame can dissipate heat smoothly during work, and at the same time, a fan is arranged under the resistance to accelerate the heat dissipation of the resistance, thereby ensuring the stability and safety performance of the resistor and the entire integrated circuit .

Description of drawings

Fig. 1 is a schematic structural view of Embodiment 1 of the present utility model.

The names of the parts indicated by the numbers in the attached drawings are as follows: 1—rectangular housing, 2—resistor, 3—fan, 4—U-shaped bracket, 5—U-shaped support, 11—cooling hole, 12—dustproof Cover, 13—installation plate.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Example 1

The resistor frame used for the bottom of the intelligent air defense and disaster prevention alarm control cabinet, as shown in Figure 1, includes a rectangular housing 1 and a resistor 2 fixed inside the rectangular housing 1, and two fans 3 are fixed inside the bottom surface of the rectangular housing 1 and three U-shaped brackets 4, the opening of the U-shaped bracket 4 faces the bottom surface of the rectangular housing 1 and the U-shaped brackets 4 are distributed on both sides of the fan 3, and the two ends of the resistor 2 are respectively fixed on the U-shaped brackets 4 on both sides of the fan 3, so that Ensure that the resistor 2 is located above the fan 3, where two resistors 2 are installed above the two fans 3, and the U-shaped bracket 4 located between the two fans 3 is provided with two rows of mounting holes for installing the two fans 3 respectively Resistor 2 above. Since the resistor 2 is located directly above the fan 3, the resistor 2 can accelerate heat dissipation during operation. At the same time, since the bottom surface and four sides of the rectangular housing 1 are provided with a plurality of strip-shaped heat dissipation holes 11 evenly arranged, the heat dissipation speed of the resistor 2 can be further increased, so that the stability and stability of the resistor and the entire integrated circuit can be improved. Security has been improved. The heat dissipation holes 11 on the four sides of the rectangular housing 1 are fixed with dust covers 12 , and the dust covers 12 are located outside the sides of the rectangular housing 1 . Install a dust cover at the heat dissipation hole 11 to prevent dust or other impurities from entering the resistor frame, avoid dust and other impurities from affecting the work of the resistor 2 and the fan 3, and also prevent dust accumulation from blocking the heat dissipation hole 11 and affecting heat dissipation efficiency .

Finally, because two shorter side wall tops of the rectangular housing 1 are provided with a mounting plate 13 for installing the top cover, the mounting plate 13 is parallel to the bottom surface of the rectangular housing 1, so the top cover can be installed through the mounting plate 13, thereby It can protect the resistor 2 and the fan 3 inside the resistor frame, and can further protect the components inside the resistor frame from dust. In addition, a U-shaped support 5 is fixed outside the bottom surface of the rectangular housing 1 , and the opening of the U-shaped support 5 faces the bottom surface of the rectangular housing 1 . The rectangular housing 1 is supported by the U-shaped support 5. On the one hand, the bottom surface of the rectangular housing 1 can be smoothly ventilated and dissipated. On the other hand, it also has a certain moisture-proof effect on the entire resistor frame, and can also reduce the wear on the bottom surface of the resistor frame. Increase the service life of the entire resistance frame.

The resistor frame is located at the bottom of the intelligent air defense and disaster prevention alarm control cabinet, and it is far away from the integrated circuit board in the cabinet, so there will be no interference between the resistors in the resistor frame and the integrated circuit board in the cabinet, thereby avoiding some Unnecessary interference factors enable the control cabinet to make air defense and disaster prevention alarms more accurately and reduce potential safety hazards.

In a word, the above descriptions are only preferred embodiments of the present utility model, and all equal changes and modifications made according to the patent scope of the utility model should fall within the scope of the utility model patent.

Claims (5)

1. The resistance frame used for the bottom of the intelligent air defense and disaster prevention alarm control cabinet is characterized in that: it includes a rectangular housing (1) and a resistor (2) fixed inside the rectangular housing (1), the rectangular housing (1) At least one fan (3) and at least two U-shaped brackets (4) are fixed on the inner side of the bottom surface. side, and the two ends of the resistor (2) are respectively fixed on the U-shaped brackets (4) on both sides of the fan (3). 2. The resistance frame for the bottom of the intelligent air defense and disaster prevention alarm control cabinet according to claim 1, characterized in that: the bottom surface and four sides of the rectangular housing (1) are provided with a plurality of evenly arranged Long strip cooling holes (11). 3. The resistance frame used for the bottom of the intelligent air defense and disaster prevention alarm control cabinet according to claim 2, characterized in that: the heat dissipation holes (11) on the four sides of the rectangular housing (1) are all fixed with dust covers (12), the dust cover (12) is located outside the side of the rectangular housing (1). 4. The resistance frame used for the bottom of the intelligent air defense and disaster prevention alarm control cabinet according to claim 1, characterized in that: the two shorter side wall tops of the rectangular housing (1) are provided with a top cover for installation The mounting plate (13), the mounting plate (13) is parallel to the bottom surface of the rectangular housing (1). 5. The resistance frame for the bottom of the intelligent air defense and disaster prevention alarm control cabinet according to claim 1, characterized in that: a U-shaped support (5) is fixed outside the bottom surface of the rectangular housing (1), and the U-shaped support (5) The opening faces the bottom surface of the rectangular housing (1).