CN107477955A

CN107477955A - Cooling unit

Info

Publication number: CN107477955A
Application number: CN201710263600.0A
Authority: CN
Inventors: 进藤保德
Original assignee: Markee Sith Industrial Corp; Fujikoki Corp
Current assignee: Markee Sith Industrial Corp; Fujikoki Corp
Priority date: 2016-06-08
Filing date: 2017-04-20
Publication date: 2017-12-15
Also published as: KR20170138932A; JP2017219256A

Abstract

A kind of cooling unit is provided, the cooling unit can prevent that the action of the pressure fan caused by cooling operating is with the switching of defrosting operating is bad, and closed when can reliably carry out defrosting operating.Cooling unit has：Framework, the framework, which is internally formed, closes space；Heat exchanger, the heat exchanger arrangement is in the inside of the framework；Inhalation mask, the inhalation mask are installed on a side in the side of the framework；Fan unit, the fan unit are installed on another side in the side of the framework；And damper unit, the damper unit are installed on the heat exchanger side of the fan unit, the damper unit has：The damper housing of rectangular drum like；Baffle plate, the axle located at the both sides of the baffle plate are rotatably arranged on the inner side of the damper housing；And heater, the heater, which is installed into, to abut along the outer surface of the damper housing or close to the axle.

Description

Cooling unit

Technical field

The present invention relates to a kind of cooling unit, more particularly to one kind to allow hand over cooling operating and defrosting operating and be subject to reality The cooling unit with defrosting function applied.

Background technology

It is configured to the cooling unit (unit refrigerator) of the cool-air feeds such as large-scale freezer, freezer：Via configuration Cooler (evaporator) inside framework is cooled down to the extraneous gas introduced outside framework, and the extraneous gas is supplied It is given to freezer, (is referred to as the action " cooling operates ") in freezer.

In such cooling unit, the moisture that contains sometimes in extraneous gas is attached to cold when as cold air as frost But device, thus, the cooling capacity of cooler can be caused to decline.

In order to which the frost for being attached to cooler as described above is removed, in the past, it is dynamic to carry out following so-called " defrosting " Make and (action is referred to as " defrosting operating ")：Cooling operating is temporarily ceased, and the suction inlet of framework is next close with outlet closing Close inside framework, cooler is then heated by using hot gas, heater, so that being attached to the frost thawing of the cooler.

As the unit refrigerator for switching above-mentioned cooling operating and defrosting operating and using, for example, as it is known that having one kind for example Positioned at cooler and the downstream of pressure fan pipe set baffle plate, in defrosting operating when the inner space of cooler room is close The refrigerator for the structure closed (with reference to patent document 1).

Prior art literature

Patent document

Patent document 1：Japanese Patent Publication 5-59167 publications

In unit refrigerator disclosed in patent document 1, in defrosting operating by supplying the heat of hot gas to chamber interior, Make the frost thawing for being attached to cooler.Now, the white part melted turns into vapor (mist) and suspended.

However, make chamber interior closed due to closing baffle plate, therefore, when above-mentioned vapor is full of indoor, as water Drop is attached to the surface of pressure fan in internally positioned space, on the switching mechanism of baffle plate.

In such a state, when switching to cooling operating from defrosting operating, because the cold air from cooler blows again To the pressure fan or the switching mechanism of baffle plate for being attached with water droplet, therefore, sometimes water droplet turn into ice cube and accumulate etc. and as dynamic The reason for making bad or failure.

As Defrost mode, not using only hot gas as described above, it is also known that have using heater or by above-mentioned hot gas Structure combined with heater etc., but all can form ice cube in the switching mechanism of baffle plate and turn into and act the reason for bad etc..

The content of the invention

Therefore, it is an object of the present invention to provide it is a kind of can prevent because cooling operating and the switching of defrosting operating and caused by Pressure fan action is bad and closed cooling unit when can reliably carry out defrosting operating.

In order to reach above-mentioned purpose, cooling unit of the invention has：Framework, the framework, which is internally formed, closes space；Heat Exchanger, the heat exchanger arrangement is in the inside of the framework；Inhalation mask, the inhalation mask are installed in the side of the framework One side；Fan unit, the fan unit are installed on another side in the side of the framework；And damper list Member, the damper unit are installed on the heat exchanger side of the fan unit, and the damper unit has：Rectangle The damper housing of tubular；Baffle plate, the axle located at the both sides of the baffle plate are rotatably installed on the damper housing Inner side；And heater, the heater, which is installed into, to abut along the outer surface of the damper housing or close to described Axle.

Alternatively, it is also possible to make the baffle plate be multiple, one end of arm member is respectively fixed with the end of multiple axles, The other end of the arm member is respectively arranged in the connection shaft of shared connecting rod.

The effect of invention

Using the cooling unit of the present invention, the dynamic of caused by cooling operating is with the switching of defrosting operating pressure fan is prevented Make bad, and the axle (rotary shaft of baffle plate) for making in defrosting operating to be attached to baffle plate is ice melting, therefore, it is possible to reliable Ground carries out closed inside framework.

Brief description of the drawings

Fig. 1 is the longitudinal section of the outline for the cooling unit for representing embodiments of the invention 1.

Fig. 2 is the figure for the outline for schematically illustrating the damper unit suitable for the cooling unit of embodiment 1, and Fig. 2 (a) is The general principal view observed from Fig. 1 air-supply pusher side, Fig. 2 (b) is Fig. 2 (a) right side view.

Fig. 3 is the figure for the outline for schematically illustrating the damper unit suitable for the cooling unit of embodiment 2, and Fig. 3 (a) is The general principal view of damper unit from air-supply pusher side, Fig. 3 (b) is Fig. 3 (a) right side view.

Fig. 4 is the partial enlargement near the upper end of the damper unit shown in Fig. 3 (a) from arrow Dl direction Figure.

Fig. 5 is the partial enlargement near the upper end of the damper unit shown in Fig. 3 (a) from arrow D2 direction Figure, Fig. 5 (a) represent that baffle plate is located at the state of release position, and Fig. 5 (b) represents that baffle plate is located at the state of detent position.

Symbol description

10 cooling units

12 frameworks

14 inhalation masks

20 heat exchangers

22 pads

30 fan units

32 blast pipes

34 pressure fan

34a impellers

36 supporting parts

100th, 200 damper unit

110th, 210 damper housing

120th, 220 axle

122nd, 222 baffle plate

130th, 230 heater

240 connecting rods

242 connection shafts

244 arm members

Embodiment

As shown in figure 1, the cooling unit 10 of embodiments of the invention 1 has：Framework 12, the framework 12 are internally formed and closed Space；Heat exchanger 20, the heat exchanger 20 are configured at the inside of the framework 12；Inhalation mask 14, the inhalation mask 14 are installed on State a side in the side of framework 12；Fan unit 30, the fan unit 30 are installed in the side of above-mentioned framework 12 Another side；And damper unit 100, what the damper unit 100 was installed on the fan unit 30 is configured with heat The side of exchanger 20.

In the present embodiment 1, framework 12 has the shape of such as cuboid, a side in the side of the framework 12 (mark 12a referring to the drawings) is provided with and the inhalation mask of the ft connection of framework 12 14.The inhalation mask 14 is that side below has The box-like of opening portion (following side opening portion 14a).

On the other hand, in the side 12b of the position relative with side 12a of framework 12, pacify in the inner surface side of framework 12 Equipped with damper unit 100, fan unit 30 is installed in the outer surface side of wall body 12 in addition.

In the present embodiment, framework 12 (not shown) via large-scale freezer, freezer is arranged on such as foot 16 Bottom surface B, it can also be hung down using appropriate mechanism from the ceiling of the freezer, freezer.

Heat exchanger 20 is such as cooler, is directly contacted with the air (extraneous gas) sucked from inhalation mask 14 and from sky Radiated in gas.

In addition, supplied when heat exchanger 20 is provided with defrosting operating for heating the defrosting gas of the heat exchanger 20 Mechanism (not shown).

Heat exchanger 20 is positioned in the bottom surface of framework 12 via pad 22.On the other hand, being provided with the bottom surface of framework 12 will The water gall mechanism (not shown) that the water that frost is melted into by defrosting operating is discharged to the outside.

According to structure as described above, the water that frost is melted into defrosting operating is discharged to the outside.

Fan unit 30 has：Blast pipe 32, the blast pipe 32 are installed on the side 12b of framework 12；And pressure fan 34, The pressure fan 34 is installed on the blast pipe 32 via supporting part 36, is set in the side relative with heat exchanger 20 of blast pipe 32 There is aftermentioned damper unit.

In 34 rotation driving of pressure fan, open damper unit 100 by impeller 34a rotation, by air from Side opening portion 14a is sucked into framework 12 below inhalation mask 14, makes the air after being cooled down in heat exchanger 20 from blast pipe 32 Discharged to arrow A2 direction, so that cool-air feed is to the interior of above-mentioned freezer, freezer etc..

Fig. 2 is the figure for the outline for schematically illustrating the damper unit suitable for the cooling unit of embodiment 1, and Fig. 2 (a) is The general principal view observed from Fig. 1 side of pressure fan 34, Fig. 2 (b) is Fig. 2 (a) right side view.

As shown in Fig. 2 the damper unit 100 of embodiment 1 has：The damper housing 110 of rectangular drum like；It is multiple Baffle plate 122；And the heater 130 installed along the outer surface of above-mentioned damper housing, located at the left and right of each baffle plate 122 Axle 120 is rotatably installed on the inside of the side of damper housing 110.

As a result, as shown in Fig. 2 (b), each baffle plate 122 is configured to be opened and closed towards the side of fan unit 30.

That is, baffle plate 122 utilizes the sky when pressure fan 34 is driven and makes air from the discharge of the inside outward portion of framework 12 The pressure of gas is rotated to release position Pl, and when the driving of pressure fan 34 stops, the baffle plate 122 is fallen because of deadweight, and is returned To detent position P2.

Heater 130 is the heater of wire or banding, such as is generated heat by energization.As shown in Fig. 2 (b), it should add Hot device 130 is configured at the position near the end of multiple axles 120 or with ends contact in the side of damper housing 110, And installed along at least the right and left of the outer surface of damper housing 110.

Here, can be the overall heating of heater 130, or can also only make near the end of at least each axle 120 Part generates heat.

The heater 130 for being configured at the side of damper housing 110 is located at end, the i.e. damper housing of axle 120 110 even if white in the attachment of above-mentioned rotating support portion near the rotating support portion of axle 120, therefore, forming ice cube, by adding The heating of hot device 130 and make this ice melting, to prevent damper housing 110 and axle 120 affixed.

Then, the action to the cooling unit 10 of embodiments of the invention 1 illustrates.

First, in the case where cooling unit 10 carries out cooling operating, while driving heat exchanger 20, while making fan list The rotation driving of pressure fan 34 of member 30.

In 34 rotation driving of pressure fan, impeller 34a rotations, air is discharged from the inside of framework 12 by blast pipe 32 (reference arrow A3).

Now, because the air inside fan unit 30 is discharged, therefore as shown in Fig. 2 (b), it is internally formed in framework 12 Towards the flowing (reference arrow A3) of the air of damper unit 100, the baffle plate 122 of damper unit 100 turns to out Put position Pl.

When the baffle plate 122 of damper unit 100 opens, the flowing of the air inside framework 12, extraneous gas are produced It is inhaled into (reference arrow Al) from inhalation mask 14.

Also, the extraneous gas sucked from inhalation mask 14 is radiated when by heat exchanger 20, passes through damper list Member 100 and reach fan unit 30, and be discharged from blast pipe 32 as cold air.

On the other hand, in the case where carrying out defrosting operating, stop driving heat exchanger 20 and fan unit 30 is sent Blower fan 34, in the defrosting operating, will because frost and caused by ice cube remove, the frost because cooling operating be attached to inside framework 12 Heat exchanger 20, damper unit 100.

So, because the exhaust of the blast pipe 32 from fan unit 30 stops, therefore, the gear of damper unit 100 Plate 122 rotate in place in detent position P2.

Thus, the inside of framework 12 turn into damper unit 100 be border relative to outside by closed state, come Also stop from the suction of the extraneous gas of inhalation mask 14.

In this condition, defrosting action is carried out using hot gas, so as to be attached to the frost of heat exchanger 20, the inside of framework 12 etc. It is or ice melting.

Then, the frost or ice cube melted turns into water, and frame is discharged to using the water gall mechanism located at the bottom surface of framework 12 The outside of body 12.

In addition, when switching to defrosting operating from cooling operating, the heater 130 of driving damper unit 100.

Thus, even if in the attachment such as rotating support portion of damper housing 110 and the axle 120 of damper unit 100 There are frost or ice cube, the heat from heater 130 can also be used to the rotating support portion of damper housing 110 and axle 120 Nearby heated, it is therefore, white or ice melting and baffle plate 122 is reliably rotated as positioned at detent position P2.

Because the cooling unit 10 with structure as described above, embodiments of the invention 1 switches to from cooling operating During defrosting operating, using heater 130 to adjusting the damper housing 110 of damper unit 100 and being provided with the axle of baffle plate 122 120 rotating support portion and its nearby heated.

Therefore, in cooling operates, even if the damper unit 100 comprising above-mentioned rotating support portion freezes, also can Make the white or ice melting of attachment using the heat from heater 130, it is true therefore, it is possible to make baffle plate 122 reliably rotate The closed of the inside of framework 12 is protected, can effectively carry out having used the defrosting of hot gas to act.

In addition, when defrosting operating starts, the baffle plate 122 of damper unit 100 is closed, closed inside framework 12, Therefore, caused vapor (mist) is conditioned damper unit 100 and obstructed and include motor without being attached in defrosting operating Fan unit 30.

Further, in the present embodiment 1, due to matching somebody with somebody being configured between the framework 12 of heat exchanger 20 and pressure fan 34 Damper unit 100 is equipped with, therefore, the framework when switching to defrosting operating from cooling operation or during its anti-switching etc. Temperature change in 12 is not transmitted to pressure fan 34.As a result, also moisture can be effectively prevented to be mixed into the horse of pressure fan 34 Up to inside.

In addition, in the present embodiment 1, exemplified with the situation for setting multiple baffle plates 122, but baffle plate 122 can also be one.

3~Fig. 5 of reference picture, the summary of the cooling unit of embodiments of the invention 2 is illustrated.

The cooling unit of embodiment 2 is only different from the cooling unit of embodiment 1 in the configuration aspects of damper unit, because This, below, only illustrates to the structure of the damper unit of the cooling unit suitable for embodiment 2, and it is single to omit cooling The explanation of the other structures shared with embodiment 1 of member.

Fig. 3 is the figure for the outline for schematically illustrating the damper unit suitable for the cooling unit of embodiment 2, and Fig. 3 (a) is The general principal view of damper unit from the side of pressure fan 34, Fig. 3 (b) are Fig. 3 (a) right side views.

As shown in figure 3, the damper unit 200 of embodiment 2 has：The damper housing 210 of rectangular drum like；It is multiple Baffle plate 222；Heater 230, outer surface installation of the heater 230 along above-mentioned damper housing 210；And connecting rod 240, the connecting rod 240, which links the action of above-mentioned multiple baffle plates 222 via arm member 244, to be integrated, located at each baffle plate 222 The axle 220 of left and right is rotatably installed on the inside of the side of damper housing 210.

As a result, as shown in Fig. 3 (b), each baffle plate 222 is configured to towards the side of fan unit 30 opening and closing shown in Fig. 1.

In addition, in example 2, each baffle plate 222 is turned using the pressure for the air discharged from the interior of framework 12 Move to release position, when without the discharge of air, each baffle plate 222 is because deadweight is fallen and is back to detent position.

Heater 230 is and the wire generated heat or the heater of banding for example by energization similarly to Example 1. As shown in Fig. 3 (b), the heater 230 be configured in the side of damper housing 210 near the end of multiple axles 220 or With the position of ends contact, and the outer surface of damper housing 210 is installed at least in a manner of along connecting rod 240 The right and left.

The heater 230 for being configured at the side of damper housing 210 is located at turn of damper housing 210 and axle 220 Near dynamic support, therefore, even if assuming to adhere to frost in above-mentioned rotating support portion and form ice cube, heater can also be used 230 heating makes this ice melting and prevents the affixed of damper housing 210 and axle 220.

In the cooling unit of embodiment 2, the arm of substantially L-shaped is fixed with the end for the axle 220 for being installed on baffle plate 222 One end 244a of part 244.

Also, the other end 244b of above-mentioned arm member 244 is installed on connecting rod 240 via connection shaft 242.

Here, the end of one end 244a of arm member 244 and axle 220 affixed, arm in a manner of following the rotation of axle 220 Part 244 rotates jointly according to the rotation of axle 220.

On the other hand, the other end 244b of arm member 244 is rotatably installed on connection shaft 242, as a result, arm The other end 244b of part 244 relatively rotates relative to connecting rod 240.

As shown in figure 4, heater 230 be configured at contacted with the face in the outside of arm member 244 and with the ends contact of axle 220 Or the position near it, and it is configured at the position near the end face by heat exchanger side of damper housing 210.

In addition, connecting rod 240 is installed on the outside of arm member 244 in diagram, configures the side of having heaters 230.

First, in the case where cooling unit is in cooling operating condition, the pressure fan 34 of the fan unit 30 shown in Fig. 1 Rotation driving, therefore produce from inhalation mask 14 by the inside of framework 12 to the air flow of blast pipe 32, damper unit 200 baffle plate 222 is located at release position.

Now, the rotation of the adjoint axle 220 rotated together with baffle plate 222 of arm member 244 and rotate, connecting rod 240 is located at Lower position P3.

On the other hand, it is above-mentioned to make by out-of-blast machine 34 in the case where cooling unit is in defrosting operating state The flowing of air stops, therefore baffle plate 222 is rotated due to deadweight and to arrow D3 direction, is accompanied by this, arm member 244 also to Arrow D4 direction movement.

Now, connecting rod 240 is installed into relatively rotates relative to arm member 244, therefore, upper and lower on diagram is maintained In the state of the posture in direction, move into place in upper limit pipe P4.

In this condition, carry out acting using the defrosting of hot gas, make the frost for being attached to heat exchanger 20, the inside of framework 12 etc. It is or ice melting.

Then, when switching to defrosting operating from cooling operating, the heater 230 of driving damper unit 200.

Now, due to heater 230 and the face in the outside of arm member 244 and the ends contact of axle 220, therefore, reliably Ground makes to be attached to the white or ice melting of damper housing 210 and the rotating support portion of axle 220 etc..

In addition, the heat from heater 230 is also transferred to connecting rod 240 from arm member 244 via connection shaft 242, therefore, , also can be by the way that above-mentioned frost or ice cube be melted even if being attached with frost or ice cube in the support of connection shaft 242 and connecting rod 240 Change and baffle plate 222 is turned to detent position.

By with structure as described above, in addition to the effect shown in embodiment 1, embodiments of the invention 2 it is cold But unit 10 connects as a result of by the multiple axles 220 for being provided with baffle plate 222 via arm member 244 and shared connecting rod 240 The structure of knot, therefore, the on-off action of multiple baffle plates 222 interlock via connecting rod 240, so as to prevent multiple baffle plates The baffle plate not played a role in 222.

Further, since the heat of self-heating device in future 230 is transferred to axle 220 or connection shaft 242 via arm member 244, because This, it is not necessary to the mechanism individually heated to axle 220 and connection shaft 242 is set, overall simplify the structure can be made.

Additionally, this invention is not limited to the various embodiments described above, can carry out various changes.

For example, in embodiment 1 and embodiment 2, exemplified with diagram from the left and right sides respectively along damper shell The situation of the outer surface configuration heater of body, but can also be as continuous heater configuration in the outer thorough of damper housing Surface.

In addition, in example 2, make what connecting rod moved exemplified with the moving for baffle plate that basis is rotated due to deadweight Situation, but the drive mechanism (not shown) that connecting rod is retreated can also be made to move connecting rod by installation, so as to via arm Part and axle carry out the driven for opening and closing of baffle plate.

Further, in the above description, as with being illustrated by the way of the Defrost mode using hot gas, this Invention is not merely particularly limited to this, naturally it is also possible to all Defrost modes using heater, watering and combinations thereof etc. It is used in combination.

Claims

1. a kind of cooling unit, has：

Framework, the framework, which is internally formed, closes space；

Heat exchanger, the heat exchanger arrangement is in the inside of the framework；

Inhalation mask, the inhalation mask are installed on a side in the side of the framework；

Fan unit, the fan unit are installed on another side in the side of the framework；And

Damper unit, the damper unit are installed on the heat exchanger side of the fan unit,

The cooling unit is characterised by,

The damper unit has：

The damper housing of rectangular drum like；

Baffle plate, the axle located at the both sides of the baffle plate are rotatably installed on the inner side of the damper housing；And

Heater, the heater, which is installed into, to abut along the outer surface of the damper housing or close to the axle.

2. cooling unit as claimed in claim 1, it is characterised in that

The baffle plate to be multiple,

One end of arm member is respectively fixed with the end of multiple axles,

The other end of the arm member is respectively arranged in the connection shaft of shared connecting rod.