JP2020028637A - Show case - Google Patents

Abstract

To provide a show case for enabling easy and reliable cleaning of a filter for a condenser.SOLUTION: A show case includes a cleaning device 26 movably arranged in a sub-kick plate 33 so as to remove dust attached to a filter 23 for a condenser. The cleaning device includes: a frame shape cleaning device body 56: and brushes 58 arranged at both ends of the cleaning device body in a movement direction of the cleaning device and to be slidably abutted to an outer air inflow side of the filter for a condenser. Dust removers 71 positioned in a movable area of the cleaning device so as to remove dust attached to the brushes are arranged in a main kick plate 31. When the brushes pass the dust removers, dust attached to the brushes are collected to an inner side of the cleaning device body.SELECTED DRAWING: Figure 4

Description

  TECHNICAL FIELD The present invention relates to a showcase provided with a condenser and a condenser filter installed in a machine room.

  A so-called built-in type showcase installed in a store such as a convenience store or a supermarket includes a showcase body having a product display room, and a machine room configured at a lower portion of the showcase body. A compressor, a condenser, a blower for the condenser, and the like, which constitute a part of the refrigeration apparatus, are installed. In addition, the periphery of the machine room is open, and the opening on the front face is closed by a kick plate so as to be freely opened and closed. The kick plate is provided with a number of air holes for taking in outside air into the machine room.The condenser is arranged at a position facing the air holes, and is operated from the air holes of the kick plate by operating the condenser blower. The introduced outside air is passed through the condenser.

  Here, since the outside air flowing into the condenser contains dust, the dust may cause clogging of the condenser, thereby deteriorating the heat exchange efficiency between the refrigerant and the outside air and increasing power consumption. Further, if the clogging is left for a long period of time, the cooling performance deteriorates, which causes deterioration of the product. Therefore, a condenser filter is detachably provided in a ventilation path of outside air from the ventilation hole of the kick plate to the condenser, and the condenser filter captures dust contained in the outside air introduced from the ventilation hole. I was

JP-A-2006-109390

  However, even if dust accumulates in the condenser filter, the amount of outside air passing through the condenser decreases, so that the heat exchange efficiency between the refrigerant and the outside air deteriorates and power consumption increases, as described above. Disturbance occurs. Therefore, it is necessary to periodically clean the condenser filter.In this case, first, open the kick plate, remove the condenser filter from the machine room, wash the condenser filter with water, or use a vacuum cleaner. Cleaning work such as suction of dust.

  Therefore, the work of cleaning the condenser filter in the showcase takes time and effort, and it is necessary to secure a wide working space. In order to solve such a problem, in Patent Literature 1, a cutout portion is provided at an upper portion of a kick plate so that a condenser filter can be taken out of a machine room through the cutout portion. It was necessary to take out the removed filter for the condenser to a work place such as the back of a store and perform washing and the like.

  In addition, since the condenser filter is made of a mesh member, a certain amount of familiarity is required for the cleaning operation.If an unfamiliar clerk performs the cleaning operation, the cleaning is not sufficiently performed and dust may remain. Was. As described above, the cleaning operation of the condenser filter still requires time, labor, and familiarity, and there has been a demand for performing the operation more easily and reliably.

  The present invention has been made to solve such a conventional technical problem, and an object of the present invention is to provide a showcase that can easily and reliably clean a condenser filter.

  The showcase of the present invention includes a machine room, a kick plate that closes the machine room, a vent formed in the kick plate, and a condenser installed in the machine room at a position facing the vent. A cleaning device provided with a condenser filter disposed in a ventilation path of outside air from the ventilation hole to the condenser, which is movably provided on a kick plate, and which removes dust attached to the condenser filter. The cleaning device is provided at at least both ends of the cleaning device main body in the moving direction of the cleaning device, and is slidably applied to the outside air inflow side of the condenser filter. The kick plate is provided with a dust removing portion for removing dust adhering to the brush, which is located in a movable area of the cleaning device, and the brush passes through the dust removing portion. When, characterized in that dust attached to the brush is collected inside the cleaning apparatus.

  A showcase according to a second aspect of the present invention is characterized in that, in the above invention, the machine room is formed at a lower portion or an upper portion of the showcase main body, and the cleaning device is provided movably in the left-right direction.

  According to a third aspect of the present invention, in the above invention, the kick plate has a main kick plate having an opening formed at a position facing the condenser, and is attached to the main kick plate. The opening is formed in the auxiliary kick plate, the cleaning device is movably provided inside the auxiliary kick plate, and can be operated from the outside of the auxiliary kick plate. It is characterized by having been done.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the cleaning device has an operating portion provided on the cleaning device main body and protruding toward the sub-kick plate, and the sub-kick plate is provided with a movement of the cleaning device. A slit extending in the direction is formed, and the operation unit is inserted through the slit and faces the outside of the sub kick plate.

  According to a fifth aspect of the present invention, in the third or fourth aspect, the condenser filter is detachably attached to the opening of the main kick plate from the side of the sub kick plate.

  A showcase according to a sixth aspect of the present invention is characterized in that, in the inventions of the third to fifth aspects, the auxiliary kick plate is detachably attached to the main kick plate.

  According to a seventh aspect of the present invention, in the third aspect of the present invention, the main kick plate includes a stopper provided at a predetermined position in a movable area of the cleaning device, and the cleaning device is moved to the stopper. It is characterized in that the auxiliary kick plate is prohibited from being opened while the cleaning device is engaged with the stopper while being detachably engaged.

  An eighth aspect of the present invention is a showcase according to the third to seventh aspects, wherein a cleaning detection device for detecting movement of the cleaning device, and cleaning of the condenser filter based on a detection result of the cleaning detection device. A cleaning device that detects a movement of the cleaning device and has a detection output generation unit that generates an output, and the detection output generation unit is provided on the main kick plate. I do.

  According to the present invention, a machine room, a kick plate that closes the machine room, a vent formed in the kick plate, and a condenser installed in the machine room at a position facing the vent hole. In a showcase provided with a condenser filter arranged in an outside air passage from the pores to the condenser, a cleaning device for removing dust attached to the condenser filter is movably provided on the kick plate, and the cleaning device is provided with a cleaning device. Since the frame-shaped or container-shaped cleaning device main body and at least both ends of the cleaning device main body in the moving direction of the cleaning device are provided with brushes that slidably contact the outside air inflow side of the condenser filter, By moving the cleaning device, dust attached to the condenser filter can be removed with a brush. This makes it possible to easily and reliably clean the condenser filter and prevent the heat exchange efficiency between the refrigerant and the outside air in the condenser from deteriorating.

  In particular, the kick plate is provided with a dust removing portion located in a movable area of the cleaning device for removing dust attached to the brush, and when the brush passes through the dust removing portion, the dust attached to the brush removes the dust attached to the brush. Since the brush is collected inside the main body, it is possible to solve the problem that dust accumulates on the brush and is exposed to the outside through the ventilation hole, thereby deteriorating the appearance.

  In this case, when the machine room is formed at the lower part or the upper part of the showcase body, the condenser filter has a horizontally long shape, so that the cleaning device can be freely moved in the left-right direction. , It is possible to smoothly clean the entire condenser filter.

  The kick plate has an opening formed at a position facing the condenser, and the kick plate is attached to the main kick plate so that the opening of the main kick plate can be opened and closed. If the ventilation hole is formed in the sub-kick plate and the cleaning device is movably provided inside the sub-kick plate, the sub-kick plate is opened to open the condenser filter and the cleaning device. Is separated, and the dust collected in the cleaning device body of the cleaning device can be taken out.

  That is, without opening the main kick plate, it is possible to remove the dust collected inside the cleaning device main body only by opening the sub kick plate, so that the work of collecting the dust from the cleaning device becomes easy, The work space for that can also be reduced. Further, since the cleaning device can be operated from the outside of the sub kick plate, the operability is also improved.

  In this case, an operating portion protruding toward the auxiliary kick plate is provided on the cleaning device main body of the cleaning device, and a slit extending in the moving direction of the cleaning device is formed on the auxiliary kick plate. Since the operating portion is inserted into the slit and faces the outside of the sub kick plate, the cleaning device can be extremely easily and smoothly moved from the outside of the sub kick plate.

  Further, when the condenser filter is detachably attached to the opening of the main kick plate from the side of the sub kick plate as in the invention of claim 5, when the condenser filter itself becomes contaminated or becomes damaged, In such a case, the condenser filter can be taken out, cleaned and replaced simply by opening the sub kick plate, and the maintenance work of the condenser filter itself is extremely good.

  In particular, if the sub kick plate is detachably attached to the main kick plate as in the invention of claim 6, it is possible to collect dust from the cleaning device and filter the condenser when the sub kick plate is detached from the main kick plate. Can be attached and detached, so that maintenance workability is further improved.

  Further, a stopper is provided on the main kick plate at a predetermined position in the movable area of the cleaning device, and the cleaning device is moved so as to engage with the stopper so as to be freely detachable. In the state in which the auxiliary kick plate is engaged with the stopper, the inconvenience of inadvertent opening of the auxiliary kick plate can be avoided by prohibiting the opening of the auxiliary kick plate.

  Further, if a cleaning detection device for detecting the movement of the cleaning device and a control device for determining the cleaning execution status of the condenser filter based on the detection result of the cleaning detection device are provided, Various managements, such as management of the cleaning time of the condenser filter, can be performed based on the cleaning state of the condenser filter. In particular, if the cleaning detection device has a detection output generation unit that detects the movement of the cleaning device and generates an output, and if this detection output generation unit is provided on the main kick plate, the detection output of the cleaning detection device The wiring of the generating portion can be performed on the side of the main kick plate, and the opening and closing operation of the sub kick plate can be performed without any trouble.

It is a perspective view of the showcase of one Example to which the present invention is applied. FIG. 2 is a vertical sectional side view of the showcase of FIG. 1. It is a perspective view of the kick plate of the showcase of FIG. FIG. 4 is a perspective view of the kick plate of FIG. 3 with a sub kick plate opened. FIG. 4 is a front perspective view of a main kick plate of the kick plate of FIG. 3. FIG. 6 is a rear perspective view of the main kick plate of FIG. 5. FIG. 4 is a front perspective view of a sub kick plate of the kick plate of FIG. 3. It is a rear perspective view of the sub kick plate of FIG. It is a perspective view of the cleaning device of the showcase of FIG. It is a front view of the filter for condensers of the showcase of FIG. FIG. 4 is a front view of the kick plate of FIG. 3 in a state where a sub kick plate is seen through. It is a figure explaining the procedure which cleans the filter for condensers of FIG. FIG. 11 is a diagram illustrating a procedure for cleaning the condenser filter of FIG. 10. FIG. 11 is a diagram illustrating a procedure for cleaning the condenser filter of FIG. 10. FIG. 11 is a diagram illustrating a procedure for cleaning the condenser filter of FIG. 10. FIG. 11 is a diagram illustrating a procedure for cleaning the condenser filter of FIG. 10. FIG. 11 is a diagram illustrating a procedure for cleaning the condenser filter of FIG. 10. FIG. 2 is a functional block diagram of a control system of the showcase of FIG. 1.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a showcase 1 according to an embodiment to which the present invention is applied, and FIG. 2 is a vertical side view.

(1) Basic Structure of Showcase 1 The showcase 1 of the embodiment includes a showcase main body 2 having a front opening forming a product display room 3 inside, and a machine room 4 formed at a lower portion of the showcase main body 2. It is provided. The showcase body 2 includes a heat insulating wall 5 having a substantially U-shaped cross section, a partition plate 6 disposed inside the heat insulating wall 5 at a predetermined distance, and a predetermined space behind the heat insulating wall 5. The rear panel 7 is disposed in such a manner that the ceiling panel 8 extends from the front end of the heat insulating wall 5 to the upper end of the rear panel 7; the space between the heat insulating wall 5 and the partition plate 6; It comprises a pair of left and right side plates 9 for closing the space between the back plates 7 in the left and right direction, and a pair of left and right glass plates 10 provided outside the side plates 9.

  A plurality of (five in this embodiment) detachable product shelves 11 are provided in the product display room 3, and a bottom shelf 12 is provided below the product shelves 11. The bottom shelf 12 is arranged at a predetermined distance from the bottom wall of the heat insulating wall 5, and has a rear end in contact with a lower end of the partition plate 6. With such a configuration, the cold air duct 13 is configured between the partition plate 6 and the bottom shelf 12 and the heat insulating wall 5.

  A cool air circulation blower 14 is provided between the bottom shelf 12 and the heat insulating wall 5, and a cooler 15 constituting a part of a refrigeration system is provided in a cool air duct 13 behind the partition plate 6. ing. Accordingly, when the cool air circulation blower 14 is operated, the cool air cooled by the cooler 15 flows through the duct 13 and is blown out from the outlet at the upper front end. The cool air blown out from the outlet cools the inside of the commodity display room 3 while forming a cool air curtain at the front opening of the commodity display room 3, and flows into the cool air duct 13 from the inlet at the lower front end.

  The machine room 4 includes a plate-like side plate 17 that closes the openings on the left and right sides of the gantry 16 formed of a rectangular parallelepiped frame, a bottom plate (not shown) that closes the bottom opening of the gantry 16, and an opening on the front side of the gantry 16. Is a space defined by a kick plate 24 that can be opened and closed, a bottom surface of the heat insulating wall 5, and a lower portion of the back plate 7. The upper rear end of the machine room 4 communicates with an exhaust duct 18 formed between the back plate 7 and the heat insulating wall 5, and the heat generated in the machine room 4 is discharged to the outside by the exhaust duct 18. Configuration.

  In the machine room 4, the condenser 20 and the compressor 22, which constitute a part of the refrigerating device, the condenser filter 23, the cleaning device 26 of the present invention, the condenser blower 21, and other electric devices ( (Illustration omitted) etc. are installed. The condenser 20 is disposed at a front end of the machine room 4, that is, at a position facing the kick plate 24.

  In this embodiment, the kick plate 24 includes a main kick plate 31 serving as a main body of the kick plate 24 and a horizontally long rectangular opening 32 attached to the main kick plate 31 and formed in the main kick plate 31. The condenser filter 23 is attached to the main kick plate 31 as described later, and the cleaning device 26 is attached to the auxiliary kick plate 33 as described later. The main kick plate 31 outside the opening 32 (at least on the left and right sides and above) is formed with a concave portion 31A that is concave rearward, and the sub kick plate 33 closes the concave portion 31A and the opening 32 so as to be freely opened and closed. . A plurality of ventilation holes 34 for introducing outside air into the machine room 4 are formed at a position facing the opening 32 of the sub kick plate 33, and a shape facing the region where the ventilation holes 34 are formed is formed. The condenser 20 is arranged.

  In this embodiment, the condenser filter 23 is detachably attached to the opening 32 of the main kick plate 31 from the sub kick plate 33 side, and is located on the sub kick plate 33 side of the main kick plate 31. The condenser blower 21 is installed in the machine room 4 on the side opposite to the kick plate 24 with respect to the condenser 20. When the condenser blower 21 is operated, the outside air flows through the vent holes 34 of the sub kick plate 33. Is sucked and passed through the condenser 20. A rectangular duct member 40 is attached to the inner surface side (the surface on the side of the condenser 20) of the main kick plate 31, and this duct member 40 constitutes a part of the main kick plate 31. The opening 32 and the recess 31A described above are formed inside the duct member 40, and the condenser 20 abuts on the rear end opening of the duct member 40. A part of the outside air passage from the vent hole 34 of the sub kick plate 33 to the condenser 20 is formed in the duct member 40, and the condenser filter 23 is attached so as to close the opening 32 (FIG. 6), the auxiliary kick plate 33 is disposed in the ventilation path of the outside air from the ventilation hole 34 to the condenser 20.

(2) Structure of Kick Plate 24 Next, the configuration of the kick plate 24 and each member attached to the kick plate 24 will be described with reference to FIGS. As described above, the kick plate 24 includes the main kick plate 31 and the sub kick plate 33.

(3) Structure of Main Kick Plate 31 The main kick plate 31 (kick plate 24) is formed of a horizontally long rectangular plate-like member because the machine room 4 is formed below the showcase body 2. An engagement piece 37 is formed at the lower edge, and a pair of right and left magnets 38 that are attached to and detached from the gantry 16 and the like are provided inside (FIG. 6). The main kick plate 31 can be opened and closed forward with its lower edge as an axis by engaging the engagement piece 37 with the gantry 16. The main kick plate 31 (kick plate 24) can be completely removed from the showcase 1 by releasing the engagement between the engagement piece 37 on the lower edge of the main kick plate 31 and the gantry 16. That is, the kick plate 24 is detachable from the showcase 1.

  The above-described rectangular opening 32 is formed at a position of the main kick plate 31 corresponding to the condenser 20. The condenser filter 23 is detachably attached to the opening 32 from the front side (the side of the sub kick plate 33) by the retainer 36 and the decorative screw 35. As described above, the ventilation of the outside air from the vent hole 34 to the condenser 20 is performed. Placed on the road.

(4) Structure of the Sub-Kick Plate 33 On the other hand, the sub-kick plate 33 is composed of a horizontally long rectangular plate-like member having a size capable of closing the opening 32 and the concave portion 31A of the main kick plate 31. Has a plurality of ventilation holes 34 as described above. In the embodiment, the ventilation holes 34 have a horizontally long oblong shape, and the ventilation holes 34 are arranged in a matrix of a plurality of rows × a plurality of stages. That is, the ventilation holes 34 are formed so as to be aligned at predetermined intervals in the left-right direction and the up-down direction. Therefore, in the sub kick plate 33, a plurality of non-venting regions formed between the vents 34 adjacent in the lateral direction extend in the up-down direction.

  In addition, the auxiliary kick plate 33 has an operation slit 41 as an elongated hole-shaped slit extending in the left-right direction (the moving direction of the cleaning device 26) for operating the cleaning device 26 above the ventilation hole 34. Are formed (FIGS. 3 and 7). Further, below the ventilation hole 34 of the sub kick plate 33, an elongated hole-shaped guide hole 42 for sliding the cleaning device 26 is formed in parallel with the operation slit 41. (FIGS. 4 and 8).

  Engagement holes 43 are formed on the left and right lower edges of the sub kick plate 33 (FIG. 8). An engagement piece 44 is formed below the concave portion 31A on both sides of the opening 32 of the main kick plate 31. Above the concave portion 31A on both sides of the opening 32, the engagement piece 44 is attracted to the auxiliary kick plate 33. A magnet 46 for holding is provided (FIG. 11). By engaging the engaging piece 44 of the main kick plate 31 with the engaging hole 43 of the sub kick plate 33, the sub kick plate 33 can be opened and closed forward with its lower edge as an axis. Further, by releasing the engagement between the engagement hole 43 at the lower edge of the sub kick plate 33 and the engagement piece 44 of the main kick plate 31, the sub kick plate 33 can be completely removed from the main kick plate 31. it can. That is, the sub kick plate 33 is detachable from the main kick plate 31.

(5) Structure of the Condenser Filter 23 As shown in FIG. 10, the condenser filter 23 has a filter main body 47 made of a horizontally long rectangular mesh member, and a main body provided on the left and right pieces and the upper side of the filter main body 47. The lower auxiliary frame 49, which is provided on the frame 48 and the lower piece of the filter body 47 and connects the left and right sides of the main frame 48, connects the left and right pieces of the main frame 48 at the center of the filter body 47 in the vertical direction. A central auxiliary frame 51 is provided. The size of the filter body 47 is substantially equal to the size of the opening 32.

  The main frame 48 is formed by bending a bar-shaped member, and the left and right lower ends of the main frame 48 are located below the lower auxiliary frame 49. Are detachably inserted into holding holes (not shown). In a state where the condenser filter 23 is attached to the main kick plate 31, the center auxiliary frame 51 is disposed on the condenser 20 side with respect to the filter body 47.

(6) Structure of Cleaning Device 26 As shown in FIGS. 4, 8, 9, and 11, the cleaning device 26 of the embodiment is connected to the cleaning device main body 56 having a substantially rectangular frame shape and the cleaning device main body 56. The cleaning device main body 56 includes a pair of left and right brushes 58 attached to the cleaning device main body 56. The cleaning device main body 56 includes an upper side 61 and a lower side 62 extending in the left-right direction, and a left side 63 and a right side 64 extending in the vertical direction. That is, the area surrounded by the sides 61 to 64 of the cleaning device main body 56 becomes the opening 65.

  On the bottom surface of the lower side 62 of the cleaning device main body 56, a projection 66 is provided which is inserted into the guide hole 42 of the sub kick plate 33. In the embodiment, the convex portion 66 is formed by a screw attached to the lower side 62 in the vertical direction. The operation section 57 is inserted into the operation slit 41 of the sub kick plate 33, and is formed at the end of the connection shaft 67 and the connection shaft 67 connected to the center of the upper side 61 of the cleaning device main body 56. A handle 68 facing the outside of the plate 33 is provided.

  The movement direction of the cleaning device 26 is regulated in parallel with the operation slit 41 and the guide hole 42, that is, in the left-right direction of the sub kick plate 33 by the convex portion 66 and the guide hole 42, the connection shaft 67, and the operation slit 41. You. With such a configuration, the cleaning device 26 can be moved left and right along the guide hole 42 inside the sub kick plate 33 by moving the handle 68 left and right from outside the sub kick plate 33. .

  The left and right movable areas of the cleaning device 26 are defined by the lateral length of the guide holes 42. Here, when the cleaning device 26 moves to the left and right ends of the movable area, the guide holes 42 cause the brushes 58 on both left and right sides of the movable area to be larger than the condenser filter 23 attached to the main kick plate 31. It is formed so as to be located outside.

  It should be noted that the cleaning device 26 is set at one of the ends during normal times (when waiting) when cleaning is not performed. At this time, stoppers 69 are respectively mounted in the recesses 31A at positions outside the both ends of the opening 32 of the main kick plate 31 and included in the movable area of the cleaning device 26 (FIG. 4). , FIG. 11). When the cleaning device 26 is located at one end (the left and right ends: a predetermined position) of the movable area, either the left side 63 or the right side 64 of the cleaning device main body 56 is located behind the stopper 69. It is configured to engage with the side so as to be detachable (FIG. 11). In the state where the left side 63 or the right side 64 is engaged with the stopper 69, the opening of the sub kick plate 33 is prohibited.

  The brush 58 of the cleaning device 26 is attached to the left side 63 and the right side 64 located at both ends of the cleaning device main body 56 in the moving direction (left and right direction) of the cleaning device 26. That is, the cleaning device main body 56 is a holding member that holds the pair of brushes 58 at a predetermined interval. The bristles of the brush 58 extend toward the condenser filter 23 at the rear, and slidably contact the condenser filter 23 with a predetermined pressure. Each of the brushes 58 has a vertically long shape whose longitudinal direction is the vertical direction so as to slidably abut on the outside air inflow side of the condenser filter 23 so as to extend vertically. Thus, when the cleaning device 26 is moved to the left and right, the bristles of the brush 58 rub the surface of the filter body 47 of the condenser filter 23, and the dust adhered to the condenser filter 23 is removed and adheres to the brush 58. Thereby, it is possible to remove the dust stably over the entire surface of the condenser filter 23.

  When the cleaning device 26 is at the standby position, the one brush 58 is located outside the condenser filter 23. At this time, the other brush 58 faces the gap between the ventilation holes 34 formed in the sub kick plate 33. That is, it faces the region where the ventilation hole is not formed in the sub kick plate 33. With such a configuration, it is possible to prevent a reduction in the amount of outside air sucked in due to the brush 58 blocking the ventilation hole 34 during standby. Further, since the brush 58 is not visible from the front of the showcase 1, the appearance is also good.

(7) Dust remover 71
On the other hand, a dust remover 71 is attached to the left and right outer sides of the opening 32 (where the condenser filter 23 is attached) of the main kick plate 31 (FIG. 11). The dust removing tool 71 is attached to the outer surface of the duct member 40 as shown in an enlarged manner in FIGS. 14, 16 and 17, and is located in the recess 31A. As shown in each figure, at a position substantially flush with the condenser filter 23, an outwardly facing saw-shaped dust removing portion 72 is formed vertically. The left and right dust removers 71 (dust remover 72) are located in the movable area of the cleaning device 26, and are cleaned when the cleaning device 26 is moved to any one end (left or right end) of the movable area. Either the left side 63 or the right side 64 of the device main body 56 is configured to pass through the dust removing portion 72 of the dust removing tool 71 and move to the outside thereof.

(8) Cleaning Operation by Cleaning Device 26 Next, the cleaning operation of the condenser filter 23 by the cleaning device 26 will be described with reference to FIGS. In each of the drawings, the auxiliary kick plate 33 is seen through. For example, it is assumed that the cleaning device 26 is located at the right end of the movable area (at the time of standby shown in FIG. 12), and from that state, the operation unit is opened from outside the sub kick plate 33 as shown in FIG. When the cleaning device 26 is moved to the left end with the handle 68 of 57, dust D (shown by hatching in each figure) adhered to the filter body 47 of the condenser filter 23 is removed by the brush 58 of the left side 63. It is scraped off by hair and removed. The removed dust D is collected outside (to the left of) the brush 58, adheres to the brush 58, and accumulates (FIG. 14).

  Then, when the cleaning device 26 is moved to the left end portion toward the movable area, the dust D collected and accumulated outside the brush 58 on the left side 63 is removed by the brush 58 from the dust removal unit 72 of the dust removal tool 71. Is removed from the brush 58 and collected inside the left side 63 of the cleaning device body 56 (FIG. 15). Even after the brush 58 on the left side 63 has passed through the dust removing section 72, the dust D1 adhering to the brush 58 as shown in FIG. 16 (FIG. 16) is directed rightward toward the cleaning device 26 as shown in FIG. After moving the cleaning device 26 to the left and right several times, the dust D1 is also moved inside the left side 63 of the cleaning device body 56 by the brush 58 by moving the cleaning device 26 left and right several times. Will be collected.

  The same applies to the case where the cleaning device 26 is moved to the right end toward the movable area. The dust D collected and accumulated outside the brush 58 on the right side 64 is removed by the brush 58 When passing through the dust removing portion 72 of the cleaning device 71, the cleaning device is separated from the brush 58 and collected inside the right side 64 of the cleaning device main body 56.

  When the dust D collected and accumulated inside the cleaning device main body 56 of the cleaning device 26 is discarded in this manner, first, the user holds the handle 68 of the operation unit 57 and holds the left side 63 and the right side of the cleaning device main body 56. After the cleaning device 26 has been moved to a position where the 64 does not engage the stopper 69, the handle 68 is pulled. As a result, the sub kick plate 33 is separated from the magnet 46, so that the sub kick plate 33 is opened forward with its lower edge as an axis (FIG. 4). In this state, since the cleaning device 26 is separated from the condenser filter 23 and exposed to the outside, the dust D accumulated inside the cleaning device main body 56 is collected by, for example, sucking with a vacuum cleaner and discarded.

  Further, if there is any dirt that cannot be removed by the cleaning device 56 or the condenser filter 23 is damaged, the engagement between the engagement hole 43 of the sub kick plate 33 and the engagement piece 44 of the main kick plate 31 is changed from the state of FIG. Cancel the match. Thereby, the sub kick plate 33 is removed from the main kick plate 31. Next, the decorative screw 35 is loosened to remove the restraining device 36, and the condenser filter 23 is removed from the main kick plate 31 for cleaning or replacement.

  As described above, according to the present invention, the dust attached to the condenser filter 23 can be removed by the brush 58 by moving the cleaning device 26, so that the condenser filter 23 can be easily and reliably cleaned. Thus, it is possible to prevent the efficiency of heat exchange between the refrigerant and the outside air in the condenser 20 from deteriorating.

  In particular, the main kick plate 31 of the kick plate 24 is provided with a dust remover 71 (dust remover 72) located in a movable area of the cleaning device 26 for removing dust adhered to the brush 58. When the dust passes through the dust removing section 72, the dust attached to the brush 58 is collected inside the cleaning device main body 56, so that the dust is accumulated on the brush 58 and is exposed to the outside through the vent hole 34, and the appearance is reduced. The worsening inconvenience can be resolved.

  In this case, when the machine room 4 is configured below the showcase main body 2 as in the embodiment, the condenser filter 23 has a horizontally long shape. Movably, the entirety of the condenser filter 23 can be smoothly cleaned.

  In the embodiment, the kick plate 24 is provided with a main kick plate 31 having an opening 32 formed at a position facing the condenser 20, and attached to the main kick plate 31 to open and close the opening 32 of the main kick plate 31. The auxiliary kick plate 33 is configured so as to be freely closed, the ventilation hole 34 is formed in the auxiliary kick plate 33, and the cleaning device 26 is movably provided inside the auxiliary kick plate 33, so that the auxiliary kick plate 33 is opened. By doing so, the dust collected in the cleaning device body 56 of the cleaning device 26 can be taken out.

  That is, since the dust collected inside the cleaning device main body 56 can be removed only by opening the sub kick plate 33 without opening the main kick plate 31, the dust collecting operation from the cleaning device 26 can be performed. And the work space for that can be reduced. Further, since the cleaning device 26 can be operated from the outside of the sub kick plate 33, the operability is also improved.

  In this case, in the embodiment, the cleaning device main body 56 of the cleaning device 26 is provided with an operation portion 57 protruding toward the sub kick plate 33, and the sub kick plate 33 has an operation slit extending in the moving direction of the cleaning device 26. 41 is formed so that the handle 68 of the operation unit 57 is inserted into the operation slit 41 and faces the outside of the sub kick plate 33, so that the cleaning device 26 can be extremely easily and smoothly from the outside of the sub kick plate 33. Can be moved.

  Further, in the embodiment, since the condenser filter 23 is detachably attached to the opening of the main kick plate 31 from the sub kick plate 33 side, when the condenser filter 23 itself becomes contaminated, Even in the case of breakage, the condenser filter 23 can be taken out, cleaned and replaced simply by opening the sub kick plate 33, and the maintenance workability of the condenser filter 23 itself is extremely good. .

  In particular, in the embodiment, since the sub kick plate 33 is detachably attached to the main kick plate 31, the collection and condensation of dust from the cleaning device 26 in a state where the sub kick plate 33 is detached from the main kick plate 31. The dexterous filter 23 can be attached and detached, and the maintenance workability is further improved.

  In the embodiment, the stoppers 69 are provided in the concave portions 31A on both sides of the opening 32 of the main kick plate 31 so that the cleaning device 26 can be detachably engaged with the stopper 69 when the cleaning device 26 is moved to any one end of the movable area. When the cleaning device 26 is engaged with the stopper 69, the opening of the auxiliary kick plate 33 is prohibited. Therefore, the auxiliary kick plate 33 is inadvertently prepared using the cleaning device 26. The inconvenience of being opened to the user can be avoided.

(9) Cleaning detection device 76
Here, the showcase 1 is provided with a cleaning detection device 76 (FIG. 18) for detecting the movement of the cleaning device 26. The cleaning detection device 76 according to the embodiment includes a reed switch 73 as a detection output generation unit provided in a concave portion 31 </ b> A above the opening 32 of the main kick plate 31 at the center of the movable area of the cleaning device 26, and a cleaning device. It comprises a magnet 74 attached to the rear surface of the upper side 61 of the cleaning device body 26.

  When the cleaning device 26 is moved from the standby position (left end or right end) toward the center for cleaning (movement in the left-right direction), the reed switch 73 closes when the magnet 74 approaches the reed switch 73. Since this is an output of detecting the movement of the cleaning device 26, it is possible to detect whether or not the cleaning of the condenser filter 23 using the cleaning device 26 has been performed.

(10) Control device 77
Next, a control system of the showcase 1 will be described with reference to FIG. FIG. 18 is a functional block diagram of a control system of the showcase 1. Here, only the configuration according to the gist of the present invention will be described. As shown in FIG. 18, the showcase 1 includes the above-described cleaning detection device 76, a condenser temperature sensor 78 that detects the temperature of the condenser 20, a control device 77, an alarm device 83, and a communication control device 84. ing. The control device 77 includes a filter cleaning execution determination unit 82 that determines the cleaning status of the condenser filter 23 based on the detection result of the cleaning detection device 76. The showcase 1 can communicate with the store terminal 87 via the communication control device 84 and the network control device 86 installed in the store. The store terminal 87 is a computer carried by a store clerk, such as a tablet terminal, and centrally manages one or a plurality of showcases 1.

  When the cleaning detection device 76 detects the movement of the cleaning device 26 in the left and right direction, the filter cleaning execution determination unit 82 determines that the cleaning of the condenser filter 23 has been performed. When the cleaning detection device 76 does not detect the movement of the cleaning device 26 in the left-right direction for a predetermined period (for example, two weeks), the filter cleaning execution determination unit 82 determines that the cleaning is not performed for the predetermined period. When determining that the condenser filter 23 has been cleaned, the filter cleaning execution determination unit 82 notifies the store terminal 87 of the determination result via the communication control device 84 and the network control device 86.

  When it is determined that the cleaning has not been performed for the predetermined period, the filter cleaning execution determination unit 82 notifies the store terminal 87 of the determination result via the communication control device 84 and the network control device 86. The store terminal 87 stores and manages each received notification, and centrally manages the showcase 1 based on each notification. Upon receiving each notification, the store terminal 87 performs a process corresponding to each notification, such as prompting a clerk to clean the condenser filter 23. Further, the determination result can be notified to a management computer (not shown) outside the store via the network control device 86.

  Further, the filter cleaning execution determination unit 82 notifies the alarm device 83 of the determination result. The alarm device 83 performs an alarm operation under predetermined conditions based on the temperature of the condenser 20 detected by the condenser temperature sensor 78 and the received notification. As a form of the alarm operation, an alarm by a lamp, a buzzer, or the like can be given. The condition includes "whether or not the temperature of the condenser 20 is within a predetermined normal temperature range". Further, the predetermined period is set to be shorter than a period until the temperature of the condenser 20 exceeds a predetermined normal temperature range due to accumulation of dust from a state where the condenser filter 23 is cleaned (for example, two weeks). ). Therefore, when the clerk does not clean the condenser filter 23 for a long time, the store terminal 87 performs a process of urging the clerk to clean the condenser filter 23 before the alarm operation by the alarm device 83. .

  As described above, since the cleaning detection device 76 that detects the movement of the cleaning device 26 and the control device 77 that determines the cleaning execution status of the condenser filter 23 based on the detection result of the cleaning detection device 76 are provided, Various managements, such as management of the cleaning time of the condenser filter 23, can be performed based on the cleaning status of the filter 23.

  In particular, the cleaning detection device 76 includes a reed switch 73 (detection output generation unit) and a magnet 74 for opening and closing the reed switch 73. The reed switch 73 is provided on the main kick plate 31, and the magnet 74 is provided on the cleaning device 26. Therefore, wiring of the reed switch 73 (detection output generation unit) of the cleaning detection device 76 can be performed on the main kick plate 31 side. Thus, even when the auxiliary kick plate 33 is openable and closable as in the embodiment, the opening and closing operation can be performed without any trouble.

  Although the embodiment of the present invention has been described in detail, the present invention is not limited to this. For example, in the above embodiment, two brushes 58 are provided for the cleaning device 26, but three or more brushes 58 may be provided. Further, in the embodiment, the cleaning device main body 56 is described as having a frame shape. However, the present invention is not limited to this, and the cleaning device body 56 may have a container shape, and may further have a structure in which a plurality of horizontal slits are formed vertically. In particular, when the cleaning device main body 56 has a container shape, the movable area of the cleaning device 26 is extended to the outside of the condenser filter 23, and the cleaning device 26 is completely separated from the condenser filter 23 during standby. If the cleaning device 26 can be arranged, the inconvenience of the cleaning device 26 being obstructed by the ventilation of the outside air can be eliminated.

  Further, in the above embodiment, the machine room 4 is configured below the showcase main body 2. However, the invention is not limited thereto, and the invention of claim 2 is also effective when the machine room 4 is configured above the showcase main body 2. . Further, in the embodiment, the cleaning device 26 is moved in the left-right direction. However, in the invention other than claim 2, the cleaning device 26 is moved in the up-down direction particularly when the machine room is formed on the side of the showcase body. It is good also as a system. Further, in the embodiment, the cleaning device 26 is engaged with the stopper 69 when the cleaning device 26 is located at the end of the movable area (at the time of standby). However, the present invention is not limited thereto, and another predetermined position of the movable area is determined. Here, the stopper 59 and the cleaning device 26 may be engaged with each other, and the opening and closing of the sub kick plate 33 may be prohibited.

  Further, in the embodiment, the cleaning detection device 76 is constituted by the reed switch 73 and the magnet 74. However, the invention is not limited to this. The movement of the cleaning device 26 may be detected, or a mechanical switch may be provided on the main kick plate 31 as a detection output generator, and the cleaning device 26 may move to open and close the switch.

  Further, in the embodiment, the showcase 1 having the kick plate 24 provided on the front surface is illustrated, but a showcase having the kick plate 24 provided on the left and right side surfaces and the back surface may be used. The present invention is not limited to the open-type open showcase, and the present invention can be applied to a flat-type open showcase with an open top and a showcase with a front door.

  Furthermore, in the embodiment, the kick plate 24 has a two-part structure including the main kick plate 31 and the sub kick plate 33. However, the present invention is not limited to this, and the kick plate 24 may be formed of a single kick plate. No problem.

DESCRIPTION OF SYMBOLS 1 Showcase 2 Showcase main body 4 Machine room 20 Condenser 21 Blower for condenser 23 Filter for condenser 24 Kick plate 26 Cleaning device 31 Main kick plate 32 Opening 33 Secondary kick plate 34 Vent hole 41 Operation slit (slit)
58 Brush 57 Operation unit 69 Stopper 71 Dust removal tool 72 Dust removal unit 73 Reed switch (detection output generation unit)
74 magnet 76 cleaning detection device 77 control device

Claims (8)

A machine room, a kick plate for closing the machine room, a vent formed in the kick plate, a condenser installed in the machine room at a position facing the vent, and the condenser from the vent. In a showcase equipped with a condenser filter arranged in the ventilation path of outside air to the vessel,
A cleaning device is provided movably on the kick plate and removes dust attached to the condenser filter,
The cleaning device is
A frame-shaped or container-shaped cleaning device body,
A brush provided on at least both ends of the cleaning device main body in the moving direction of the cleaning device, and slidably abutting on the outside air inflow side of the condenser filter;
The kick plate is provided with a dust removal unit located in a movable area of the cleaning device to remove dust attached to the brush,
A showcase, wherein when the brush passes through the dust removing unit, dust attached to the brush is collected inside the cleaning device body. The machine room is configured at a lower or upper portion of the showcase body,
The showcase according to claim 1, wherein the cleaning device is provided movably in the left-right direction. The kick plate includes a main kick plate having an opening formed at a position facing the condenser, and a sub-kick plate attached to the main kick plate and closing the opening of the main kick plate to be able to open and close,
The vent is formed in the sub kick plate,
The showcase according to claim 1, wherein the cleaning device is movably provided inside the sub-kick plate, and is operable from outside the sub-kick plate. The cleaning device has an operation unit provided on the cleaning device main body and protruding toward the sub kick plate side,
The slit is formed in the auxiliary kick plate in the moving direction of the cleaning device, and the operation unit is inserted through the slit and faces the outside of the auxiliary kick plate. The showcase described.   The showcase according to claim 3 or 4, wherein the condenser filter is detachably attached to an opening of the main kick plate from the side of the sub kick plate.   The showcase according to any one of claims 3 to 5, wherein the auxiliary kick plate is detachably attached to the main kick plate. The main kick plate includes a stopper provided at a predetermined position in a movable area of the cleaning device,
4. The cleaning device according to claim 3, wherein the cleaning device is displaceably engaged with the stopper, and the auxiliary kick plate is prohibited from opening when the cleaning device is engaged with the stopper. A showcase according to any one of claims 6 to 7. A cleaning detection device for detecting movement of the cleaning device,
A control device that determines a cleaning execution state of the condenser filter based on a detection result of the cleaning detection device,
4. The cleaning detection device according to claim 3, further comprising a detection output generation unit configured to detect a movement of the cleaning device and generate an output, and the detection output generation unit is provided on the main kick plate. 5. Item 8. A showcase according to any one of Items 7 to 7.

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