CN2600918Y - Closed loop heat pipe heat exchange cooling device - Google Patents

Abstract

A closed loop type heat pipe heat exchange cooling device is installed in a closed space and comprises a shell unit, a heat exchanger and a plurality of fans, wherein the shell unit comprises a box body with an opening and defining a containing space and a cover body sealed at the opening, an air inlet and an air outlet are correspondingly and respectively arranged on the box body and the cover body, the heat exchanger is installed in the containing space of the box body, the containing space of the shell unit is divided into a first space and a second space, and the fans are respectively arranged on the air inlets of the first space and the second space, so that the effects of good heat dissipation effect, dust prevention, scale prevention and the like can be achieved.

Description

Closed loop heat pipe heat exchange cooling device

【Technical field】

The utility model relates to a cooler, in particular to a closed circuit heat pipe heat exchange cooling device.

【Background technique】

Referring to Figure 1, in order to fully dissipate the heat source generated during the operation of the electronic and electrical equipment installed in the electrical control box (such as: electrical box, instrument box, computer room, etc.), a general electric control box 1 Zhongdu is equipped with heat dissipation components, and its heat dissipation method is mainly that an air inlet 12 is provided on a box wall 11 near the bottom of the electric control box 1, and a fan 14 is installed on an air supply port 13 near the top. The fan 14 introduces cold air from the air inlet 12 into a box inner space 15 of the electric control box 1 to dissipate the heat energy generated by the electronic and electrical equipment in the box, and then discharges the hot air through the air supply port 13 to achieve the effect of heat dissipation However, this type of heat dissipation method is to introduce the outside air into the space 15 of the box, directly contact with the electronic and electrical equipment and take away the dissipated heat energy. Although it has a moderate heat dissipation effect, the air introduced from the outside usually brings There is a lot of dust, moisture, grease, etc., especially in the environment with harsh air conditions such as factories, this type of cooling design is not only easy to cause dust and dirt on electrical appliances due to pollution, but also prone to failure and influence the effect of its work.

Referring to Fig. 2, in order to improve the shortcoming that the cooling design shown in Fig. 1 is easy to pollute, there is another kind of cooling device in the past, that is, another casing 21 is set in an electric control box 2, and an isolated space 22 is defined, The box body 21 has a folded partition plate 23, which separates the isolation space 22 into a first space 221 and a second space 222, and the box body 21 is respectively provided with the first and second spaces 221, 222. An air inlet 24,25 and an air outlet 26,27, a fan 28 is installed at these air outlets 26,27 places, so, by the design of this dividing plate 23, only through the first space The fan 28 of 221 absorbs the heat energy emitted by the electronic and electrical equipment in the electric control box 2, enters the isolation space 22 and makes the partition plate 23 conduct heat, and then distributes and accumulates in the partition plate through another fan 28 located in the second space 222 23, to achieve the purpose of conduction and heat dissipation, and to prevent the outside air from entering the electric control box 2, so as to avoid the pollution of electronic and electrical equipment in the box. However, the heat dissipation efficiency of the partition plate 23 is low. To achieve a better heat dissipation effect, the volume of the partition plate 23 must be increased, and an outer surface 231 of the partition plate 23 is easily contaminated with dust and grease due to long-term contact with the outside air. On the contrary, the phenomenon of heat preservation is formed due to the accumulation of dust and dirt. Therefore, in the case of adding a box body 21 and a partition plate 23, the occupied space is not only much larger than that in FIG. 1, but the heat dissipation effect is not ideal.

【Content of utility model】

The purpose of the utility model is to provide a closed loop heat pipe heat exchange cooling device, which can achieve good heat dissipation effect and the effect of dustproof, moistureproof and dirtproof.

The utility model provides a closed circuit heat pipe heat exchange cooling device installed in a closed space, which is characterized in that it includes

A shell unit, comprising a box body having an opening and capable of defining an accommodating space, and a cover sealed on the opening of the box body, the box body and the cover body are respectively provided with an air inlet correspondingly and a row of vents;

a heat exchanger installed in the accommodation space of the box body, and divides the accommodation space of the shell unit into a first space and a second space; and

A plurality of fans are respectively arranged on the air inlets of the first space and the second space of the shell unit.

The closed loop heat pipe heat exchange cooling device is characterized in that:

The heat exchanger may include a plurality of radiating fins stacked at equal intervals, a condensing tube interspersed in the middle of the radiating fins, and working fluid is injected into the condensing tube.

The closed loop heat pipe heat exchange cooling device is characterized in that:

A filter screen can be respectively installed on the air inlet, and the filter screen is located at the outer end of the fan suction.

The closed loop heat pipe heat exchange cooling device is characterized in that:

The shell unit may further include a fixing flange extending from the periphery of the box.

To sum up the above, the closed loop heat pipe heat exchange cooling device of the present invention has the following functions and advantages, and they are organized as follows:

1. The utility model uses the circulation of the heat exchanger to bring out the hot air. Compared with the previous design of the partition plate, the utility model can effectively achieve the effect and advantage of better heat dissipation effect.

2. The utility model is more suitable for use with the filter screen on the cooling device, which can effectively achieve the effects and advantages of dustproof, moistureproof and antiscale.

3. Due to the dust-proof effect of the filter screen, the dust will not enter the electric control box, which can improve the service life of the electronic and electrical equipment installed in the electric control box, so the purpose of creation can indeed be achieved.

【Description of drawings】

The closed circuit heat pipe heat exchange cooling device of the present utility model is described in detail below through the best embodiment and accompanying drawings, in the accompanying drawings:

Fig. 1 is a sectional view illustrating a cooling device of a general electric control box.

Fig. 2 is a sectional view illustrating a conventional cooling device for an electric control box.

Fig. 3 is a three-dimensional exploded view illustrating the first preferred embodiment of the closed loop heat pipe heat exchange cooling device of the present invention.

Fig. 4 is a combined sectional view of the first preferred embodiment.

Fig. 5 is a three-dimensional assembled view illustrating the second preferred embodiment of the closed loop heat pipe heat exchange cooling device of the present invention.

Fig. 6 is a combined sectional view of the second preferred embodiment.

【Detailed ways】

Referring to Fig. 3, 4, the first preferred embodiment of the closed circuit heat pipe heat exchange cooling device of the present utility model is a kind of wall-mounted cooling device, and is installed in a closed space 31 of an electric control box 3, the The cooling device includes a shell unit 4 , a heat exchanger 5 , an exhaust unit 6 , and several filter screens 7 .

The housing unit 4 includes a box body 43 having an opening 41 and defining a receiving space 42 , a cover 44 sealed in the opening 41 of the box body 43 , the box body 43 and the cover body 44 An air inlet 431, 441 and an air outlet 432, 442 are correspondingly provided on the upper side, a fixed flange 45 extending from the outer periphery of the box body 43 and formed on the edge of the opening 41, and two air outlets from the air outlets respectively. The retaining edges 433 , 443 extending horizontally on the inner side of 432 , 442 .

The heat exchanger 5 is installed in the accommodating space 42 of the box body 43, and includes a plurality of radiating fins 51 stacked at equal intervals, and a condensing tube 52 bent and combined in the middle of the radiating fins 51. The condensing tube 52 is externally connected with a tuyere 521 and an appropriate amount of working fluid 53 injected into the condensation pipe 52 . The heat exchanger 5 is fixed obliquely across the casing 43 and the cover 44 between the air inlets 431, 441 and the air outlets 432, 442 by an appropriate amount of glue (not shown), so that The accommodating space 42 of the shell unit 4 is divided into a first space 421 and a second space 422, and two heat insulating layers 54 are fixed on both sides of the heat exchanger 5 to form a heat insulation effect with the box body 53, Avoid heat transfer.

The exhaust unit 6 includes two fan frames 61 fixed to the air inlets 431, 441, several fans 62 embedded in the two fan ports 611 of the fan frames 61, and several fans fixed to the fan frames 61. The fan guard 63 on the outside of the mouth 611.

The filter screens 7 are sealed on the air outlets 432 , 442 of the box body 43 and the cover body 44 , and have functions of filtering dust, grease and the like.

Referring to Fig. 3, since the cooling device of the present utility model is installed in the electric control box 3, and communicates with the airtight space 31 through the air inlet 441 and the air exhaust port 442, when existing in the electric control box 3 Electronics and electrical equipment (not shown) produce heat sources, and the hot air is extracted from the air inlet 441 through the fans 62 and enters the first space 421, and the hot air is circulated through the heat exchanger of the heat exchanger 5 for processing. The principle of descending is that the hot air sublimates to the top of the heat exchanger 5, and is discharged to the outside from the air outlet 432. Secondly, the outside cold air is extracted from the air inlet 431 through the fans 62 and enters the second space 422. The same principle, cooling The air descends to the bottom of the heat exchanger 5, and the air outlet 442 sends cold air into the closed space 31 of the electric control box 3, effectively dissipating the heat source of the closed space 31 of the electric control box 3, and achieving a good heat dissipation effect purpose and efficacy. Coupled with the protective effect of the filter screens 7, it can effectively prevent the outside world from sucking in dirty air with dust and grease, so it has the functions and advantages of dustproof, moistureproof and dirtproof.

Referring to Fig. 5, 6, the second preferred embodiment of the closed circuit heat pipe heat exchange cooling device of the present utility model is a kind of patio cooling device, and is installed in a closed space 31 of an electric control box 3, the The cooling device includes a shell unit 8 , a heat exchanger 5 , an exhaust unit 6 , and several filter screens 7 .

The housing unit 8 includes an upper box body 81, a lower box body 82, and a fixed frame 83. The lower box body 82 has an air inlet 821 and an air outlet 822, and a ring extending from a top opening 823. The flange 824, when the lower box body 82 is placed in the sealed space 31 by a perforation 32 of the electric control box 3, the outside of the ring flange 824 is placed on the wall of the electric control box 3, and locked with several screws 84 When the heat exchanger 5 is installed in the first chamber 825 of the lower box body 82, the fixed frame 83 is locked on the top of the ring edge 824, and the upper box body 81 is covered on the top of the lower box body 82. At this time, an upper chamber 811 defined by its outer ring wall covers the top section of the heat exchanger 5, and the screw 84 is locked together with the top of the fixed frame 83, and the upper box body 81 has an air inlet 812 and a row of air outlets 813.

The exhaust unit 9 includes two fan frames 91 fixed on the air inlet 821 and the air outlet 813, several fans 92 embedded in the fan ports 911 of the fan frames 91, and several fans fixed on the fan frames 91. The fan guard 93 on the outside of the fan port 911. These filter screens 7 are sealed on the air inlet 812 and the air outlet 822 of the upper box body 81 and the lower box body 82, and have the functions of filtering dust, grease and the like.

Referring to Fig. 6, when the electronic and electrical equipment (not shown) present in the electric control box 3 generates a heat source, the hot air is extracted from the air inlet 821 via the fan 92 and enters the lower chamber 825, and the hot air circulates through the heat exchange Due to the principle that the hot air rises and the cold air descends, the hot air sublimates to the top of the heat exchanger 5 and enters the upper chamber 811, and is discharged to the outside from the air outlet 813. Secondly, through the fans 92 From the air inlet 812, the cold air from the outside is drawn into the upper chamber 811. In the same principle, the cold air descends to the bottom of the heat exchanger 5, and the air outlet 822 sends the cold air into the closed space of the electric control box 3. 31, effectively dissipate the heat source of the closed space 31 of the electric control box 3, so when the hot air in the electric control box 3 circulates continuously, and gradually sublimates the hot air through the heat exchanger 5 and discharges the hot air from the upper chamber 811 to the outside, It can achieve the purpose and effect of good cooling effect. Same as the first embodiment, the second embodiment can also effectively achieve the effects and advantages of dustproof, moistureproof and dirtproof by virtue of the protective effect of the filters 7 .

Claims (4)

1. a closed loop formula heat pipe heat transfer cooling device is installed in the confined space, and it is characterized in that: it comprises

One outer cover unit comprises that one has an opening port and can define the casing of a spatial accommodation, and an envelope is located at the lid of this casing opening port, a corresponding air inlet and the exhaust outlet of being respectively equipped with on this casing and this lid;

One heat exchanger is installed in the spatial accommodation of this casing, and the spatial accommodation of this outer cover unit is divided into one first space and one second space; And

Most fans are placed in respectively on this air inlet in this first space of this outer cover unit and second space.

2. according to the described closed loop formula heat pipe heat transfer cooling device of claim 1, it is characterized in that:

This heat exchanger comprises that most uniformly-spaced radiating fins, of stacked setting unroll and interts condenser pipe in the middle of this radiating fin, is injected with in this condenser pipe and makes hydrodynamic.

3. according to the described closed loop formula of claim 1 heat pipe heat transfer cooling device, it is characterized in that:

Filter screen is installed respectively, and this filter screen is the place, outer end that is positioned at this fan air draught on this air inlet.

4. according to the described closed loop formula of claim 1 heat pipe heat transfer cooling device, it is characterized in that:

This outer cover unit more comprises a fixedly bead that extends to form in this casing periphery.

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