KR20210036900A - Pet drying room to maintain negative pressure - Google Patents

Abstract

The present invention relates to a negative pressure maintenance pet dry room and, more specifically, to a negative pressure maintenance pet dry room which prevents hairs, etc. generated during drying of pets from being discharged to the outside by keeping the pressure of a space accommodating pets below atmospheric pressure, and always introducing outside air into the space accommodating pets. The pet dry room comprises: a housing including an inside air inlet unit provided on one side of a drying space and an inside air outlet unit for discharging the air introduced into the inside air inlet unit to the outside; and a door coupled to the housing to form the drying space and including an outdoor air inlet unit.

Description

PET DRYING ROOM TO MAINTAIN NEGATIVE PRESSURE

The present invention relates to a pet dry room that maintains negative pressure, and more particularly, by maintaining the pressure of the space accommodating the pet below atmospheric pressure so that the outside air always flows into the space accommodating the pet, during the drying of the pet It relates to a pet dry room that maintains negative pressure to prevent the generated hair from being discharged to the outside.

Recently, with the increase of single households and the aging of the population, the number of households raising pets such as dogs and cats is increasing in order to obtain emotional comfort through communion with pets.

Not only apartments but also detached houses often live with pets indoors.At this time, contaminated hairs or foreign substances from pets can seriously affect human health, so pay special attention to the hygiene and cleanliness of pets. Should be tilted.

In order to maintain the cleanliness of pets, request a bath for the pet at a Pet Shop or bathe the pet directly. If the hair is not dried well after bathing, it may cause colds or skin diseases.

If you use a general hair dryer or a pet dryer mounted on a cradle for drying, you cannot collect the hairs that are lost during the drying process, and it takes a long time to dry.

In order to solve this problem, a pet dry room capable of accommodating pets and drying their hairs has been developed and spread.

The conventional technology (Registration No. 10-1724043) relates to a dry assembly for pets, and sprays dry air from four directions up, down, left, and right to dry hair, skin, etc. of the object to be dried (pet) after bathing. It relates to a dry assembly capable of drying efficiently.

However, the conventional technology has a problem in that the hair generated during drying of the pet is ejected to the outside.

The present invention was devised to solve the above problem, and by maintaining the pressure of the space in which the pet is accommodated below atmospheric pressure, hairs generated during drying of the pet are suppressed from being ejected out of the space where the pet is accommodated. Its purpose is to provide a pet dry room that maintains negative pressure.

Another object of the present invention is to provide a negative pressure-maintaining pet dry room capable of adjusting the pressure level of a space in which pets are accommodated.

In addition, an object of the present invention is to provide a negative pressure-maintaining pet dry room having a structure in which only one filter unit is installed.

The present invention for the purpose of solving the above problems has the following configurations and features.

The present invention has a drying space, and is combined with the housing to form a drying space and a housing including an internal air inlet provided on one side of the drying space and an internal air discharge part for discharging the air introduced to the air inlet to the outside, And a door including an outside air inlet.

In addition, a damper for adjusting the cross-sectional area of the bet discharge part may be provided at the bet discharge part.

In addition, the housing includes an inside air supply part provided on another side of the drying space, and a passage part through which air moves in communication with the air inlet part and the air supply part, and the passage part is between the air inlet part and the air supply part. Can be provided with a filter.

In addition, the bet discharge unit may be provided at the rear end of the filter.

The present invention having the above configuration and features discharges the bet circulating inside the drying space and the housing to the bet discharge unit, thereby maintaining the internal pressure of the drying space at a negative pressure that is less than atmospheric pressure, so that the hair generated during drying of the pet is prevented by the pet. It has the effect of suppressing outflow to the outside of the housed drying space.

In addition, according to the present invention, by adjusting the size of the cross-sectional area of the bet discharge unit by the damper, the degree of air pressure in the drying space in which the pet is accommodated can be adjusted.

In addition, the present invention provides a structure in which only one filter unit is installed instead of installing a filter (filter unit) in each of the external air inlet and the internal air inlet in order to reuse the air circulating in the drying space in a clean state, It is possible to save the cost incurred in installation and maintenance of the filter part.

In addition, the present invention increases the degree of sound pressure (difference from atmospheric pressure) of the drying space by increasing the size of the cross-sectional area of the internal air discharge unit through the damper, thereby effectively suppressing the outflow of hairs generated during drying to the outside of the drying space. .

1 is a schematic diagram of a pet dry room maintaining a negative pressure according to an embodiment of the present invention. FIG. 2 is a view for explaining a state in which the cross-sectional area of the bet discharge part in FIG. 1 is enlarged by a damper. 3 is a view for explaining the opening and closing part. 4 is a diagram for explaining a filter unit. 5 is a view showing a state in which a pet seated in a drying space is groomed in a state in which the door is not coupled. 6 is a view for explaining a negative pressure maintenance pet dry room serving as a smart pet house in a state in which the size of the cross-sectional area of the bet discharge unit is reduced by the damper of FIG. 5.

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or embodiments), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as ~comprise~ or ~consist~ are intended to designate the existence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude the possibility of preliminary exclusion.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

The ~1~, ~2~ and the like described in the present specification are only referred to to distinguish different constituent elements, and are not limited to the order of manufacture, and their names in the detailed description and claims of the invention It may not match.

Throughout the present specification, when a part is said to be "connected" with another part, it is not only the case that it is "directly connected", but also "electrically connected" or "indirectly connected" with another element interposed therebetween. "Including the case.

1 is a schematic view of a pet dry room maintaining a negative pressure according to an embodiment of the present invention, and FIG. 2 is a view for explaining a state in which a cross-sectional area of a bet discharge part in FIG. 1 is enlarged by a damper.

Hereinafter, for convenience of description, the negative pressure maintaining pet dry room 1 according to an exemplary embodiment of the present disclosure will be referred to as a “bone dry room”.

1 and 2, this dry room (negative pressure maintaining pet dry room 1) includes a housing 11 and a door 12.

The housing 11 has a drying space DS. In more detail, the housing 11 may include a connection part 13P, a first body 111 connected to one side of the connection part 13P, and a second body 112 connected to the other side of the connection part 13P. have. Here, one side may mean an upper side (or right) with respect to the connection part 13P in FIG. 1, and the other side may mean a left side with respect to the connection part 13P in FIG. 1. At this time, the second body 112 may be disposed horizontally to form the lower surface of the drying space DS. Here, the horizontal arrangement is arranged horizontally with respect to the ground, and may mean a 3 o'clock-9 o'clock direction based on FIG. 1. In addition, the first body 111 may be vertically disposed with respect to the second body 112 (12 o'clock-6 o'clock direction based on FIG. 1) to form a side surface of the drying space DS.

In this way, the first body 111 and the second body 112, respectively connected by the connection part 13P, may provide a drying space DS having a'b' shape for drying, but the drying space DS The shape of) is not limited to this.

A pet (pet) is seated (accommodated) in the drying space DS.

Referring to FIG. 1, the door 12 is coupled to the housing 11 to form a drying space DS. The door 12 may be coupled to the housing 11 to allow opening and closing. That is, a pet (pet) is seated in the drying space DS provided by the housing 11 in a state in which the door 12 is open (see FIG. 2), and the housing 11 is then placed in the door 12. As the drying space DS provided by the housing 11 is closed as it is coupled to, the pet may be accommodated in the drying space DS. Alternatively, the door 12 may be formed in a slide manner to be opened and closed while the door 12 is coupled to the housing 11, and the degree of opening may be adjusted. The configuration in which the door 12 is coupled to the housing 11 and the configuration in which the door 12 is slid are obvious to those skilled in the art, and thus a more detailed description thereof will be omitted. Here, that the drying space DS is closed by the door 12 does not mean a complete closure, but partially closed in a state in which outside air is introduced into the drying space DS by the outside air inlet 121 to be described later ( It is preferable to understand as (see Fig. 1).

1 and 2, the housing 11 includes an internal air inlet 113 provided on one side of the drying space and an internal air discharge 115 for discharging air introduced into the internal air inlet 113 to the outside. Includes. In other words, the internal air of the drying space DS passes through the air inlet 113 and passes through the passage 11P of the housing 11 to be described later, and passes through the air discharge 115 to the outside of the housing 11. Discharge. As will be described later, the housing 11 is provided with a fan FA or the like in the passage part 11P to discharge the inside of the drying space DS to the inner discharge part 115. Here, the bet refers to the air inside the drying space DS and the inner space of the housing 11.

In this way, by discharging the internal air of the drying space DS through the inner discharge unit 115, the drying space DS always maintains a negative pressure (pressure below atmospheric pressure).

At this time, the door 12 includes the outside air inlet 121 and the drying space DS forms a negative pressure below atmospheric pressure, so that the outside air flows into the drying space DS through the outside air inlet 121. Here, the outside air means the air outside the main dry room.

In this way, as the inside air of the drying space DS is discharged to the outside through the inside air discharge unit 115, fresh outside air can be directly supplied to the drying space DS in which the pet (pet) is accommodated. In addition, since the hairs generated during drying of the pet can be discharged only to the bet discharge unit 115, the hairs generated during drying can be easily managed, and the filter unit FI, which will be described later, includes the bet inlet unit 113 and When installed between the air discharge unit 115, it is possible to suppress the outflow of the pet hair generated during drying to the outside of the drying space (DS).

1 and 2, the housing 11 has an air supply part 114 provided on another side of the drying space DS, and the air inlet part 113 and the air supply part 114 communicate with each other. It may include a passage portion (11P) providing a path of movement. The inside air of the drying space DS is passed through the inside air inlet 113 by a fan FA, and a part of it is discharged to the inside air discharge section 115 through the passage 11P, and the inside air excluding a part of it is discharged to the inside air supply section. It is fed back to the drying space (DS) through (114). At this time, as described above, since the drying space DS has a negative pressure, outside air is introduced into the drying space DS through the outside air inlet 121.

At this time, the amount of air passing through each of the outside air inlet 121, the inside air inlet 113, the inside air outlet 115, and the inside air supply 114 may satisfy Equations 1 and 2 below.

[Equation 1]

a = c

[Equation 2]

a + d = b-c

Here, a is the amount of air passing through the outside air inlet 121, b is the amount of air passing through the inside air inlet 113, c is the amount of air passing through the internal air outlet 115, d is It means the amount passing through the bet supply unit 114.

Referring to FIG. 1, by way of example, when the amount b of air passing through the internal air inlet 113 is 100, the amount a of air passing through the outdoor air inlet 121 is 5 to 10, and the internal air discharge unit 115 ) The amount c of air passing through may be 5 to 10, and the amount d of air passing through the air supply unit 114 may be 90 to 95.

The passage part 11P may include a filter part FI between the air inlet 113 and the air supply 114 and between the air inlet 113 and the air discharge 115. That is, the bet discharge unit 115 may be provided at the rear end of the filter unit FI. Here, the rear end is based on the moving path of the bet, and the bet flowing through the bet inlet 113 passes through the filter part FI in the passage part 11P, and a part of the bet discharge part 115 ) And resupplied to the drying space DS by passing through the bet supply unit 114, except for a part of it.

In this way, the filter unit FI is provided between the inner air inlet 113 and the inner air supply 114 and between the inner air inlet 113 and the inner air discharge 115, so that the outside air inlet 121, the inner air It is not necessary to have a plurality of filter units FI at the front end of each of the supply unit 114 and the air discharge unit 115, and thus, only one filter unit FI can be provided, and thus the purchase of the filter unit FI and It can be supplied to the bet supply unit 114 or discharged to the bet discharge unit 115 after filtering the pet hair included in the bet passing through the bet inlet 113 while saving the cost required for maintenance, etc. There is an advantage.

It is preferable that the air discharge part 115 is provided at a rear end of the fan FA in proximity to the fan FA. That is, the bet in the passage part 11P in which the fan FA is provided is closer to the fan FA from the rear end of the fan FA, the faster the moving speed in the direction of the internal air circulation path is, and the distance from the fan FA is farther. Since the moving speed in the direction of the inside air circulation path is slow, the inside air discharge unit 115 is provided at a position close to the rear end of the fan FA, so that the inside of the dryer as seen through the inside air discharge unit 115 is smooth. Fresh outdoor air may be easily introduced into the drying space DS through the outdoor air inlet 121 by being discharged into the air.

5 is a view showing a state in which a pet seated in a drying space is groomed in a state in which the door is not coupled.

2 and 5, a damper 1151 for adjusting a cross-sectional area of the air discharge part 115 may be provided in the air discharge part 115. Open the drying space DS to clean the drying space DS or comb (groom) the pets seated in the drying space DS (door 12 is formed in a slide manner, so that the first body 111 or the first body 2 In the case of releasing the coupling of the body 112 or releasing the coupling of the door 12 and the housing 11), the hair of the pet generated during the grooming of the pet may leak out of the drying space DS. I can.

At this time, by increasing the size of the cross-sectional area of the bet discharge unit 115 by the damper 1151 to increase the discharge amount of the bet, the difference between the pressure in the drying space DS and the atmospheric pressure can be increased (the sound pressure is further increased). Exemplarily, when the amount b of air passing through the internal air inlet 113 is 100, the amount a of air passing through the external air inlet 121 is 90 to 95, and the amount of air passing through the internal air discharge 115 The amount c may be 90 to 95, and the amount d of air passing through the air supply unit 114 may be 5 to 10.

In this way, by expanding the size of the cross-sectional area of the bet discharge unit 115 through the damper 1151, the bet discharge is further increased (with the size of the bet discharge unit 115 reduced by the damper 1151 in FIG. 1) The outside air of (compared with the amount of air passing through the unit 115) may be introduced into the drying space DS. Therefore, it is possible to suppress the outflow of the pet hair, etc., generated during grooming (combing, drying) into the drying space DS.

On the contrary, when the size of the cross-sectional area of the outside air inlet 121 is small, the possibility of outflow of hair and dust to the outside of the drying space DS is small, and at the same time, the size of the cross-sectional area of the internal air outlet 115 is large as shown in FIG. 2, As the amount of air passing through the filter unit FI and the fan FA provided in the passage unit 11P is large, and the air flow rate is large, the efficiency of the filter unit FI and the heater H may be lowered. have. At this time, as shown in FIG. 1, by reducing the size of the cross-sectional area of the bet discharge unit 115 through the damper 1151, the discharge amount and speed of the bet can be reduced, and thus the efficiency of the filter unit FI and the heater H is reduced. Can be improved.

In this way, by adjusting the amount and speed of air discharged to the air discharge unit 115 through the damper 1151, it is possible to suppress the outflow of the pet hair and dust to the outside of the drying space DS in some cases. In addition, there is an advantage in that the efficiency of the filter unit FI and the fan FA can be maintained.

6 is a view for explaining a negative pressure maintenance pet dry room serving as a smart pet house in a state in which the size of the cross-sectional area of the bet discharge unit is reduced by the damper of FIG. 5.

Referring to FIGS. 1, 5, and 6, when reducing the size of the cross-sectional area of the air discharge unit 115 through the damper 1151 as shown in FIG. 1 (compared to the size of the cross-sectional area of the discharge unit 115 in FIG. 2), This dry room including the drying space DS is when the fan FA and the heater H are driven (when the pet is seated in the drying space DS by a pet detection unit (not shown) to be described later). It can drive at least one of the fan FA and the heater H) It can serve as a smart pet house. In addition, when the fan (FA) is operated regardless of whether the pet is seated (received) in the drying space (DS), an air purifier that filters fine dust, etc. in the air in the indoor space where the dry room is located, with a filter (FI). Can play the role of.

As described above, it was said that the housing 11 includes a passage portion 11P through which air moves, but the housing 11 may include a first body 111 and a second body 112. Therefore, the first body 111 may include the first passage portion 111P and the second body 112 may include the second passage portion 112P, respectively, and the first passage portion 111P and the second passage portion Each of the parts 112P is connected to communicate with each other through a connection part 13P.

As described above, the filter part FI is provided between the air inlet 113 and the air supply 114 and between the air inlet 113 and the air discharge 115, and the filter FI is a first passage It may be provided in the part 111P or the second passage part 112P. In addition, the fan FA and the heater H may be provided in the first passage part 111P or the second passage part 112P.

Referring to FIG. 1, the above-described outdoor air inlet 121 may be provided under the door 12 in a state in which the door 12 is coupled to the housing 11. As described above, it was said that the second body 112 constitutes the lower surface of the drying space DS, and therefore, it is preferably provided under the door 12 adjacent to the second body 112.

When the door 12 and the housing 11 are combined and the outside air inlet 121 is provided on the upper side of the door 12 (a position higher than the height of the pet), Air is not directly provided to the pet on the circulation path of the bet, but is directly supplied to the drying space DS through the bet supply unit 114 through the passage part 11P through the bet inlet 113. On the contrary, by providing an outside air inlet 121 at the lower side of the door 12 lower than the height of the pet on the circulation path of the bet, fresh outside air is provided to the pet (pet) accommodated in the drying space DS. 11P) has the advantage that it can be provided immediately. It is more preferable that the outdoor air inlet 121 is provided corresponding to the height of the nose of the pet accommodated in the drying space DS.

3 is a view for explaining the opening and closing part.

1 and 3, the filter part FI is provided in the first passage part 111P of the first body 111, and the first body 111 opens the first passage part 111P. It may include an opening and closing part 1111. Here, the opening/closing part 1111 may open or close the opened part of the first passage part 111P by a cover for opening or sealing the opened part of the first passage part 111P and a hinge part connected to the cover. . That is, in the case of drying a pet using this dry room, the opened portion of the first passage part 111P is sealed by the opening and closing part 1111 to provide the air inlet 113, the passage part 11P, and the air supply part 114. ) To circulate the air, discharge the internal air to the internal air discharge unit 115, and introduce the external air to the external air inlet 121. On the other hand, when there is a need to maintain the filter unit FI or the like in a state where the dry room is not used, the open portion of the first passage unit 111P is opened through the opening and closing unit 1111 to open the filter unit FI. ), etc. can be easily maintained (removes dust and hair collected in the filter unit FI or replaces the filter unit FI).

In addition, the filter unit FI, the fan FA, and the heater H are arranged in the order of the filter unit FI-the fan FA-the heater H, based on the circulation path of the bet, and the opening/closing unit 1111 is In response to the arrangement of the filter unit FI, it is preferable to be provided at the front end of the filter unit FI (eg, the upper end of the first body 111) based on the circulation path of the bet. Through this, the user can easily remove dust or hair collected in the filter unit FI without being disturbed by the fan (FA) or the heater (H) from the outside of the first body 111, and the filter unit There is an advantage that (FI) etc. can be easily replaced.

4 is a diagram for explaining a filter unit.

1 to 4, the filter unit FI may include a pre filter FIa, an antibacterial filter FIb, and a HEPA filter FIc. Through this, the filter unit FI can remove not only the hair of the pet, but also viruses and ultrafine dust, so that not only can the drying space DS be more clean, but also from the bet discharged to the bet discharge unit 115 Since viruses and ultrafine dust can be removed, there is an advantage that the space in which the dry room is disposed can be kept cleaner (as described above, the dry room may be an air purifier).

Although not shown, the dry room may include a temperature sensing unit (not shown), and the housing 11 of the dry room may include a cooler C (refer to FIGS. 1 to 4 ). When the temperature sensed by the temperature sensing unit (not shown) falls below a preset reference temperature, heating (heating the drying space DS) may be performed by simultaneously driving the fan FA and the heater H. . In addition, when the temperature sensed by the temperature sensing unit (not shown) exceeds a preset reference temperature, the filter unit FI is driven and the fan FA and the cooler C are driven to cool (dry space DS). Cooling) can be performed.

In this way, this dry room selectively air-cools and heats only the drying space (DS), so that for single-person households, for pets that are alone in the residential space, the drying space (DS) of the dry room is not required to cool and heat the entire residential space. There is an advantage in that it can be cooled and heated locally, and thus, space for cooling and heating can be efficiently provided to the pet. In addition, there is an advantage in that the drying space DS in which the pet is seated can be maintained at an appropriate temperature by providing cooling and heating in response to the temperature of the drying space DS. Therefore, as described above, this dry room may be a smart pet dry room (refer to FIG. 6). It goes without saying that in this dry room (smart pet dry room), at least one of the fan FA and the heater H can be driven by a user's manipulation regardless of the temperature sensing unit (not shown).

Also, although not shown, the dry room may include a humidity sensor (not shown), and the housing 11 of the dry room may include a humidifier (HU) (refer to FIGS. 1 to 4). At this time, if the humidity sensed by the humidity sensor (not shown) falls below the preset reference humidity, the dry room drives the humidifier (HU), and the humidity sensed by the humidity sensor (not shown) is preset. When it exceeds the standard humidity, the dry room can stop the driving of the humidifier (HU) that is being driven.

As described above, this dry room is the drying space (DS) of the dry room without the need to adjust the humidity of the entire residential space for a pet that is alone in the residential space in a single-person household by controlling the humidity of the drying space (DS). There is an advantage of being able to control the humidity of the pet and thus efficiently controlling the humidity for the space in which the pet is accommodated.

In addition, by selectively driving the humidifier HU in response to the humidity of the drying space DS, there is an advantage in that the drying space DS in which the pet is seated can be maintained at an appropriate humidity. Therefore, as described above, this dry room may be a smart pet dry room (refer to FIG. 6). It goes without saying that in this dry room (smart pet dry room), at least one of the fan FA and the humidifier HU can be driven by a user's manipulation regardless of the humidity detection unit (not shown).

Although not shown, this dry room includes a pet detection unit (not shown), and when a pet is detected in the drying space DS by the pet detection unit (not shown), the fan FA, the heater H, At least one of the cooler (C) and the humidifier (HU) may be driven.

As such, the dry room includes a pet detection unit (not shown), and is interlocked with the pet detection unit to drive at least one of the fan FA, the heater H, the cooler C, and the humidifier (HU), There is an advantage in that it is possible to maintain the temperature, cleanliness, and humidity of the drying space (DS) in which the pet is seated (accommodated) without separate control through the pet manager (this dry room user). In other words, a smart pet dry room (this dry room) (see Fig. 6) that can easily manage pets (pets) even in situations where the pet manager is not in the indoor space where this dry room is placed (single-person households, etc.). It has the advantage of being able to provide.

In more detail, this dry room maintains the drying space (DS) at a negative pressure so that pet hair generated during drying can be prevented from leaking to the outside of the dry room, as well as a temperature sensor (not shown) and humidity. The environment (temperature, humidity, etc.) of the drying space (DS) through a detector (not shown), a pet detector (not shown), a fan (FA), a heater (H), a cooler (C), and a humidifier (HU). Because it can be adjusted locally, it can function as a smart pet house. In addition, as the dry room is provided with the filter FI, there is an advantage in that it can provide a function as an air purifier for a person living with a pet in a space in which the dry room is disposed.

As described above, at least one of the heater H, the cooler C, and the humidifier HU may be driven together with the fan FA.

The present invention described above with reference to the accompanying drawings can be variously modified and changed by a person skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

Pet dry room with negative pressure: 1 Housing: 11 Pathway: 11P Body 1: 111 1st passage part: 111P Opening: 1111 Body 2: 112 2nd passage part: 112P Bet inlet: 113 Bet Supply: 114 Drying space: DS Filter part: FI Fan: FA Heater: H Cooler: C Humidifier: HU Bet outlet: 115 Damper: 1151 Door: 12 Outside air inlet: 121 Connection: 13P

Claims (10)

A housing including a drying space, an internal air inlet provided on one side of the drying space, and an internal air discharge part for discharging the air introduced into the internal air inlet to the outside; And a door coupled to the housing to form a drying space and including an outside air inlet. The pet dry room according to claim 1, wherein a damper for adjusting a cross-sectional area of the bet discharge part is provided at the bet discharge part. The pet dry room according to claim 1, wherein the door is coupled to the housing so as to be openable and closed. The method according to claim 1, wherein the housing comprises an inside air supply part provided on another side of the drying space, and a passage part through which air moves in communication with the air inlet part and the air supply part, and the passage part comprises the inside air inlet part and Negative pressure maintaining pet dry room, characterized in that provided with a filter between the air supply unit. The pet dry room according to claim 4, wherein the air discharge part is provided at a rear end of the filter. The method according to claim 5, wherein the housing comprises a connection part, a first body connected to one side of the connection part, and a second body connected to the other side of the connection part, wherein the first body is vertically disposed to constitute a side surface of the drying space, The second body is horizontally disposed to constitute a lower surface of the drying space, and the first and second bodies each include first and second passages through which air moves, and the filter, fan, and heater are A negative pressure maintaining pet dry room, characterized in that provided in the first passage portion or the second passage portion. The pet dry room of claim 6, wherein the filter unit is provided in the first passage part of the first body, and the first body further comprises an opening and closing part for opening the first passage part. The method of claim 6, wherein the filter unit, the fan, and the heater are arranged in the order of a filter unit-a fan-a heater based on a circulation path of the bet, and the opening and closing unit is provided at a front end of the filter unit based on the circulation path of the bet. A pet dry room that maintains negative pressure, characterized in that. The method according to claim 6, The amount of air passing through each of the outside air inlet, the inside air inlet, the inside air outlet, and the inside air supply part satisfies the following Equations 1 and 2, [Equation 1] a = c[Equation 2 ]a + d = b-c where a is the amount of air passing through the outside air inlet, b is the amount of air passing through the inside air inlet, c is the amount of air passing through the inside air outlet, d is the inside air A pet dry room maintaining negative pressure, characterized in that the amount passing through the supply unit. The pet dry room of claim 6, wherein the outside air inlet is provided under the door while the door is coupled to the housing.

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