CN203464791U

CN203464791U - Heat dissipating device

Info

Publication number: CN203464791U
Application number: CN201320431283.6U
Authority: CN
Inventors: 王超
Original assignee: ACC Acoustic Technologies Shenzhen Co Ltd
Current assignee: ACC Acoustic Technologies Shenzhen Co Ltd
Priority date: 2013-07-19
Filing date: 2013-07-19
Publication date: 2014-03-05
Anticipated expiration: 2023-07-19

Abstract

The utility model discloses a heat dissipating device including an accommodation cavity and a first channel and a second channel arranged to communicate with the accommodation cavity. According to the utility model, the first channel and the second channel are also provided with a first blocking sheet and a second blocking sheet respectively. When the accommodation cavity is expanding and inhaling air, the second blocking sheet blocks the second channel and air is inhaled into the accommodation cavity through the first channel. When the accommodation cavity is contracting and discharging air, the first blocking sheet blocks the first channel and air is discharged out of the accommodation cavity through the second channel. The heat dissipation device provided by the utility model is provided with the air inlet channel and the air outlet channel that are independent from each other. In this way, air flow in a single direction outside the heat dissipation device can be realized and air flow outside the heat dissipation device is facilitated, so that temperature of air inhaled into the heat dissipation device can be kept comparatively low and a good heat dissipation effect of the heat dissipation device is guaranteed.

Description

Heat abstractor

[technical field]

The utility model relates to heat exchange field, and concrete is about a kind of heat abstractor.

[background technology]

The heat abstractor of correlation technique comprises host cavity and the gas channel communicating with it, and during host cavity expansion, gas is inhaled into host cavity from this gas channel; When host cavity shrinks, gas is discharged from host cavity from this gas channel again.After the heat abstractor of correlation technique carries out heat exchange from certain direction suction gas, can only discharge from former direction, the gas content will that participates in exchange is like this in the space of relative closure, some can be the last just gas from discharging in host cavity for the gas that heat abstractor sucks next time, after work certain hour, gas temperature in the outer certain area of heat abstractor also will significantly rise, greatly reduce the radiating efficiency of target heat radiation point, but also will the operating temperature of other devices around heat abstractor be had a negative impact.

Therefore, be necessary to provide a kind of new heat abstractor to address the above problem in fact.

[utility model content]

The utility model provides a kind of heat abstractor of better heat-radiation effect.

The purpose of this utility model is achieved in that

A kind of heat abstractor, it comprises host cavity, and the first passage and the second channel that communicate with described host cavity that arrange respectively, described heat abstractor is also respectively arranged with the first catch and the second catch in first passage and second channel, described the first catch and the second catch all can rotate around fixing point separately, described heat abstractor also further comprises the first block and the second block, described the first block is arranged in first passage the position away from host cavity with respect to the first catch, described the second block is arranged in second channel the position near host cavity with respect to the second catch, when host cavity is expanded when air-breathing, suck air-flow and promote the first catch and the second catch around fixing point rotation separately, now the second block second catch of conflicting limits the rotation of the second catch, thereby the second catch is closed second channel, gas is inhaled into host cavity from first passage, when host cavity shrinks exhaust, discharge air-flow and promote the first catch and the second catch around fixing point rotation separately, now the first block first catch of conflicting limits the rotation of the first catch, thus the first catch first passage is closed, gas is discharged from host cavity from second channel.

Preferably, described host cavity is made by piezoelectric, realizes the enlargement and contraction of host cavity by the piezo-electric effect of piezoelectric.

Preferably, described the first catch and the second catch fixing point place is separately provided with elastic recovery device, described elastic recovery device makes the first catch and the second catch be connected to respectively the first block and the second block when promoting to rotate without external force, now the first catch and the second catch state in first passage and second channel are closed.

The utility model has the advantage of: the heat abstractor that the utility model provides has independently air inlet and outlet passageway, so just can realize the gas flow that produces a direction at heat abstractor space outerpace, promote the gas flow of heat abstractor space outerpace, thereby guaranteed that the gas that sucks heat abstractor maintains lower temperature, has guaranteed the radiating effect that heat abstractor is good.

[accompanying drawing explanation]

Fig. 1 is the expiratory phase schematic diagram of heat abstractor of the present utility model;

Fig. 2 is the exhaust phase schematic diagram of heat abstractor of the present utility model.

[specific embodiment]

Below in conjunction with accompanying drawing, the utility model is elaborated.

As depicted in figs. 1 and 2, the heat abstractor 100 providing for the utility model, it comprises host cavity 30 and the first passage 10 and the second channel 20 that communicate with described host cavity 30 that arrange respectively, described heat abstractor 100 is also respectively arranged with the first catch 40 and the second catch 50 in first passage 10 and second channel 20, and described the first catch 40 and the second catch 50 all can rotate around fixing point separately.Described heat abstractor 100 also further comprises the first block 60 and the second block 70, described the first block 60 is arranged in first passage 10 position away from host cavity 30 with respect to the first catch 40, described the second block 70 is arranged in second channel 20 position near host cavity 30 with respect to the second catch 50, when host cavity 30 expansion is air-breathing, suck air-flow and promote the first catch 40 and the second catch 50 around fixing point rotation separately, the now rotation of second block 70 conflict second catch 50 restriction the second catch 50, thereby the second catch 50 is closed second channel 20, gas is inhaled into host cavity 30 from first passage 10, when host cavity 30 shrinks exhaust, discharge air-flow and promote the first catch 40 and the second catch 50 around fixing point rotation separately, the now rotation of first block 60 conflict first catch 40 restriction the first catch 40, thereby the first catch 40 is closed first passage 10, and gas is discharged from host cavity 30 from second channel 20.Arrow signal gas flow direction in Fig. 1 and Fig. 2.

Host cavity 30 in the utility model can be the host cavity made from piezoelectric, utilizes the piezo-electric effect of piezoelectric to realize the enlargement and contraction of host cavity 30.Certainly, other embodiments that can be used for realizing host cavity 30 enlargement and contractions all should be included in the protection domain of recording in claims.

As the embodiment that can select, described the first catch 40 and the second catch 50 fixing point place is separately provided with elastic recovery device 80, described elastic recovery device 80 makes the first catch 40 and the second catch 50 be connected to respectively the first block 60 and the second block 70 when promoting to rotate without external force, now the first catch 60 and the second catch 70 state in first passage 10 and second channel 20 are closed.

The heat abstractor that the utility model provides has independently air inlet and outlet passageway, so just can realize the gas flow that produces a direction at heat abstractor space outerpace, promote the gas flow of heat abstractor space outerpace, thereby guaranteed that the gas that sucks heat abstractor maintains lower temperature, has guaranteed the radiating effect that heat abstractor is good.

The foregoing is only preferred embodiments of the present utility model; protection domain of the present utility model is not limited with above-mentioned embodiment; in every case the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or is changed, and all should include in the protection domain of recording in claims.

Claims

1. a heat abstractor, it comprises host cavity, and the first passage and the second channel that communicate with described host cavity that arrange respectively, it is characterized in that: described heat abstractor is also respectively arranged with the first catch and the second catch in first passage and second channel, described the first catch and the second catch all can rotate around fixing point separately, described heat abstractor also further comprises the first block and the second block, described the first block is arranged in first passage the position away from host cavity with respect to the first catch, described the second block is arranged in second channel the position near host cavity with respect to the second catch, when host cavity is expanded when air-breathing, suck air-flow and promote the first catch and the second catch around fixing point rotation separately, now the second block second catch of conflicting limits the rotation of the second catch, thereby the second catch is closed second channel, gas is inhaled into host cavity from first passage, when host cavity shrinks exhaust, discharge air-flow and promote the first catch and the second catch around fixing point rotation separately, now the first block first catch of conflicting limits the rotation of the first catch, thus the first catch first passage is closed, gas is discharged from host cavity from second channel.

2. heat abstractor according to claim 1, is characterized in that: described host cavity is made by piezoelectric, realizes the enlargement and contraction of host cavity by the piezo-electric effect of piezoelectric.

3. heat abstractor according to claim 1, it is characterized in that: described the first catch and the second catch fixing point place is separately provided with elastic recovery device, described elastic recovery device makes the first catch and the second catch be connected to respectively the first block and the second block when promoting to rotate without external force, now the first catch and the second catch state in first passage and second channel are closed.