VENTILATION DEVICE AND METHOD FOR MANUFACTURING VENTILATION DEVICE

Abstract

To provide a ventilator which is easy in inter-unit alignment and connecting work, and improved in productivity.SOLUTION: In a ventilator 1, a ventilation unit 19 having a ventilation function and a moisture adjustment unit 20 having a humidification function are connected to each other with a packing 14 sandwiched therebetween. The ventilator 1 comprises an L-shaped connecting guide component 15 having a connecting fixing part being a long-length plate body, and a guide part being a plate body erecting from the connecting fixing part, and an L-shaped connecting guide component 16 having a fixing part being a long-length plate body, and a guide part being a plate body erecting from the fixing part. In the connecting component 15 and the connecting guide component 16, the guide part of the connecting component 15 and the connecting guide component 16 abut on each other in a back-to-back manner.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a ventilation device in which a ventilation unit and an additional function unit are connected, and a method for manufacturing the ventilation device. [Background technology]

[0002] Conventionally, ventilation devices that have additional functions in addition to the ventilation function have adopted a structure in which multiple units are connected. For example, by connecting a ventilation unit equipped with an intake fan, an exhaust fan, and a heat exchange element to a humidity control unit equipped with a humidifier that humidifies the air to adjust the humidity in the room, a humidification function (humidity control function) is added as an additional function to the ventilation function.

[0003] In a structure for connecting a ventilation unit and a humidity control unit, it is necessary to ensure airtightness between the units and the strength of the connection between the units. A common method for connecting the units while ensuring the airtightness between the units and the strength of the connection between the units is to screw a flat connecting part across the two units to be connected (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-20522 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the method of Patent Document 1 in which units are connected using flat connecting parts, the direction in which the connecting parts are screwed is perpendicular to the unit connection direction. Therefore, in order to ensure airtightness between the units, the connecting parts must be screwed while a force compressing the packing is continuously applied to at least one of the two units to be connected, which makes the connection work more difficult. In addition, the units must be aligned in advance within the range of error that allows for screwing prior to the connection work, making it difficult to connect heavy units.

[0006] The present disclosure has been made in consideration of the above, and has an object to provide a ventilation device that facilitates the alignment and connection work between units, thereby improving productivity. [Means for solving the problem]

[0007] In order to solve the above problems and achieve the object, the ventilation device of the present disclosure includes a ventilation unit having a ventilation function and an additional function unit having an additional function, which are connected with a packing sandwiched therebetween. The ventilation device includes first and second L-shaped connecting parts each having a connecting and fixing part which is a long plate body and a first guide part which is a plate body rising from the connecting and fixing part, and first and second L-shaped connecting guide parts each having a fixing part which is a long plate body and a second guide part which is a plate body rising from the fixing part. The first connecting part and the first connecting guide part are fixed to the ventilation unit and the additional function unit such that the first guide part of the first connecting part and the second guide part of the first connecting guide part are abutted back-to-back at a ventilation-side first side surface that is one of the two side surfaces of the ventilation unit, the connecting and fixing part of the first connecting part straddles the ventilation-side first side surface and the additional function-side first side surface that is the same side as the ventilation-side first side surface of the additional function unit, and the fixing part of the first connecting guide part is fixed to the ventilation-side first side surface. The second connecting part and the second connecting guide part are fixed to the ventilation unit and the additional function unit such that the first guide part of the second connecting part and the second guide part of the second connecting guide part are abutted back-to-back at an additional function-side second side surface that faces the additional function-side first side surface, the connecting and fixing part of the second connecting part straddles the ventilation-side second side surface and the additional function-side second side surface that is the other of the two side surfaces of the ventilation unit, and the fixing part of the second connecting guide part is fixed to the additional function-side second side surface. Effect of the Invention

[0008] According to the ventilation device of the present disclosure, the alignment and connection work between the units can be easily performed, which has the effect of improving productivity. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a top view showing a configuration of a ventilation device according to a first embodiment. [Diagram 2] FIG. 1 is a front view showing a configuration of a connecting part of a ventilation device according to a first embodiment; [Diagram 3] FIG. 1 is a front view showing a configuration of a connection guide part of a ventilation device according to a first embodiment; [Figure 4] FIG. 1 is a perspective view showing a configuration of a connecting part of a ventilation device according to a first embodiment; [Diagram 5] FIG. 1 is a perspective view showing a configuration of a connection guide part of a ventilation device according to a first embodiment; [Figure 6] FIG. 1 is a top view showing a state before a ventilation unit and a humidity control unit of a ventilation device according to a first embodiment are connected to each other; [Figure 7] FIG. 1 is a top view showing a state during a connection operation between a ventilation unit and a humidity control unit of a ventilation device according to a first embodiment; [Figure 8] FIG. 11 is a top view showing a state during a connection operation between a ventilation unit and a humidity control unit of a ventilation device according to a second embodiment. [Figure 9] FIG. 11 is a top view showing the configuration of a ventilation device according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A ventilation device and a manufacturing method for a ventilation device according to an embodiment will be described in detail below with reference to the drawings.

[0011] Embodiment 1 FIG. 1 is a top view showing the configuration of a ventilation device 1 according to the first embodiment. In FIG. 1, the top surface of the ventilation device 1 is not shown to show the internal structure. The ventilation device 1 includes a ventilation unit 19 and a temperature and humidity adjustment unit 20, which is an additional function unit. Hereinafter, the temperature and humidity adjustment unit 20 is referred to as a humidity control unit 20. The ventilation unit 19 has a ventilation function, and includes an exhaust fan 2 and an intake fan 3. The humidity control unit 20 has a temperature control and humidification function, and includes a temperature control coil 5 that heats or cools the intake air, and a humidifier 6 that humidifies the heated intake air.

[0012] The ventilation unit 19 and the humidity control unit 20 each have a rectangular parallelepiped outer shape. The ventilation unit 19 has a first side 19a, which is one of two side surfaces facing each other in the horizontal direction, and a second side 19b, which is the other side surface. The first side 19a corresponds to the ventilation side first side surface, and the second side 19b corresponds to the ventilation side second side surface. Similarly, the humidity control unit 20 has a first side 20a, which is one of two side surfaces facing each other in the horizontal direction, and a second side 20b, which is the other side surface. The first side 20a corresponds to the additional function side first side surface, and the second side 20b corresponds to the additional function side second side surface.

[0013] A packing 14 is installed between the ventilation unit 19 and the humidity control unit 20, and the packing 14 ensures airtightness between the ventilation unit 19 and the humidity control unit 20. The packing 14 is attached to either the ventilation unit 19 or the humidity control unit 20.

[0014] The ventilation unit 19 has an intake air inlet 9 that draws in outdoor air OA and an exhaust air outlet 7 that exhausts exhaust air EA to the outside. The humidity adjustment unit 20 has an intake air outlet 10 that draws in intake air SA into the room and an exhaust air inlet 8 that draws in room air RA.

[0015] Ventilation unit 19 has a heat exchange element 4 that exchanges heat between outdoor air drawn in through intake port 9 and indoor air drawn in through exhaust port 8. An intake air dust filter 11 is installed upstream of the intake air duct side of the heat exchange element 4, and an exhaust air dust filter 12 is installed upstream of the exhaust air duct side. Ventilation unit 19 has a bypass air duct 30, which is an air duct that allows outdoor air to flow bypassing heat exchange element 4, and an air duct switching damper 13 that switches whether indoor air is to flow to the heat exchange element 4 or to the bypass air duct 30.

[0016] A control box 18 equipped with a control circuit is installed in the ventilation unit 19. The control circuit controls the air volume of the intake air blower 3 and exhaust air blower 2 mounted in the ventilation unit 19, controls the switching of the air path switching damper 13, controls the cooling and heating of the temperature adjustment coil 5 mounted in the humidity adjustment unit 20, and controls the water supply ON / OFF of the humidifier 6. An operation remote control (not shown) is connected to the control box 18, and operation is performed by the operation remote control.

[0017] A connecting guide part 16 is provided on the first side surface 19a of the ventilation unit 19, and a connecting part 15 is provided on the first side surface 19a of the ventilation unit 19 and the first side surface 20a of the humidity control unit 20. A connecting guide part 16 is provided on the second side surface 20b of the humidity control unit 20, and a connecting part 15 is provided on the second side surface 19b of the ventilation unit 19 and the second side surface 20b of the humidity control unit 20. The ventilation device 1 is provided with two sets of connecting parts 15 and connecting guide parts 16. One of the two connecting parts 15 corresponds to the first connecting part, and the other corresponds to the second connecting part. One of the two connecting guide parts 16 corresponds to the first connecting guide part, and the other corresponds to the second connecting guide part.

[0018] The connecting part 15 is provided on the ventilation unit 19 and the humidity control unit 20 so as to straddle the ventilation unit 19 and the humidity control unit 20. The connecting part 15 is fixed to each of the ventilation unit 19 and the humidity control unit 20 with fixing screws 17. The ventilation unit 19 and the humidity control unit 20 are connected to each other by the connecting part 15. The connecting guide part 16 functions as a positioning member for the ventilation unit 19 and the humidity control unit 20.

[0019] Fig. 2 is a front view showing the configuration of the connecting part 15 of the ventilation device 1 according to the embodiment 1. Fig. 3 is a front view showing the configuration of the connecting guide part 16 of the ventilation device 1 according to the embodiment 1. Figs. 2 and 3 are views of the connecting part 15 and the connecting guide part 16 as viewed from the direction A in Fig. 1. Fig. 4 is a perspective view showing the configuration of the connecting part 15 of the ventilation device 1 according to the embodiment 1. Fig. 5 is a perspective view showing the configuration of the connecting guide part 16 of the ventilation device 1 according to the embodiment 1.

[0020] As shown in FIG. 2 and FIG. 4, the connecting part 15 has an L-shape and includes a connecting and fixing part 150 which is a long rectangular plate, and a guide part 153 which is a rectangular plate rising vertically from the connecting and fixing part 150. The guide part 153 corresponds to the first guide part. The connecting and fixing part 150 has a plurality of first screw holes 151 which are screw holes farther from the guide part 153, and a plurality of second screw holes 152 which are screw holes closer to the guide part 153. The plurality of first screw holes 151 and the plurality of second screw holes 152 are aligned in the longitudinal direction of the connecting part 15. It can also be said that the second screw hole 152 is disposed between the first screw hole 151 and the guide part 153. The guide part 153 has a guide hole 155 which is a through hole.

[0021] As shown in FIG. 3 and FIG. 5, the connecting guide part 16 has an L-shape and includes a fixed part 160 which is a rectangular plate body and a guide part 163 which is a rectangular plate body rising vertically from the fixed part 160. The guide part 163 corresponds to the second guide part. The fixed part 160 has a plurality of screw holes 162 arranged in the longitudinal direction. The guide part 163 has a guide hole 165 which is a through hole. The guide part 163 has protrusions 164 which rise vertically from both ends of the guide part 163. The protrusions 164 protrude in a direction away from the fixed part 160. The protrusions 164 are configured for positioning in the up-down direction perpendicular to the connecting direction B when connecting the ventilation unit 19 and the humidity control unit 20. Positioning is performed so that the guide part 153 of the connecting part 15 is inserted between the protrusions 164 and the protrusions 164.

[0022] In addition, it is also possible to eliminate the protrusions 164 on both ends of the connecting guide part 16 and provide protrusions similar to the protrusions 164 on both ends of the guide part 153 of the connecting part 15, and position the guide part 163 of the connecting guide part 16 by inserting it between the protrusions of the guide part 153.

[0023] In FIG. 1, a plurality of screw holes (not shown) are formed on the second side surface 19b of the ventilation unit 19 for inserting the fixing screws 17 through the first screw holes 151 of the connecting part 15. A plurality of screw holes (not shown) are formed on the first side surface 20a of the humidity control unit 20 for inserting the fixing screws 17 through the first screw holes 151 of the connecting part 15. A plurality of screw holes (not shown) are formed on the first side surface 19a of the ventilation unit 19 for inserting the fixing screws 17 through the screw holes 162 of the connecting guide part 16, and a plurality of screw holes (not shown) are formed on the first side surface 19a of the ventilation unit 19 for inserting the fixing screws 17 through the second screw holes 152 of the connecting part 15. A plurality of screw holes (not shown) are formed on the second side surface 20b of the humidity control unit 20 for inserting the fixing screws 17 through the screw holes 162 of the connecting guide part 16, and a plurality of screw holes (not shown) are formed on the second side surface 20b of the humidity control unit 20.

[0024] The guide portion 153 of the connecting part 15 and the guide portion 163 of the connecting guide part 16 are used as guides for positioning the ventilation unit 19 and the humidity control unit 20 by bringing them close to each other and bringing them into close contact with each other. For example, when connecting the ventilation unit 19 and the humidity control unit 20, the guide portion 153 of the connecting part 15 and the guide portion 163 of the connecting guide part 16 are abutted back to back and clamped with a connecting tool, thereby facilitating the connecting work of the ventilation unit 19 and the humidity control unit 20. In addition, when clamping the guide portion 153 and the guide portion 163 with a tool, inserting a pin-shaped positioning tool into the guide hole 155 of the connecting part 15 and the guide hole 165 of the connecting guide part 16 enables accurate positioning when connecting the ventilation unit 19 and the humidity control unit 20.

[0025] A procedure for connecting the ventilation unit 19 and the humidity control unit 20 will be described with reference to Figs. 6 and 7. Fig. 6 is a top view showing a state before the ventilation unit 19 and the humidity control unit 20 of the ventilation device 1 according to the first embodiment are connected. Fig. 7 is a top view showing a state during a connecting operation of the ventilation unit 19 and the humidity control unit 20 of the ventilation device 1 according to the first embodiment. As shown in Fig. 6, the connecting and fixing part 150 of the connecting part 15 is fixed to the second side surface 19b of the ventilation unit 19 by inserting the fixing screw 17 into the first screw hole 151 of the connecting part 15. The fixing part 160 of the connecting guide part 16 is fixed to the first side surface 19a of the ventilation unit 19 by inserting the fixing screw 17 into the screw hole 162 of the connecting guide part 16. In addition, the connecting and fixing part 150 of the connecting part 15 is fixed to the first side surface 20a of the humidity control unit 20 by inserting the fixing screw 17 into the first screw hole 151 of the connecting part 15. The fixing screw 17 is inserted into the screw hole 162 of the connection guide part 16, so that the fixing part 160 of the connection guide part 16 is fixed to the second side surface 20b of the humidity adjustment unit 20.

[0026] The connecting part 15 attached to the ventilation unit 19 is attached so that a part of the connecting and fixing part 150 and the guide part 153 protrude from the connecting surface 19c of the ventilation unit 19. The connecting part 15 attached to the humidity control unit 20 is attached so that a part of the connecting and fixing part 150 and the guide part 153 protrude from the connecting surface 20c of the humidity control unit 20. This makes it possible to position the ventilation unit 19 and the humidity control unit 20 in the direction E perpendicular to the connecting direction B, making the connecting work easier. The connecting surface 19c corresponds to the first connecting surface, and the connecting surface 20c corresponds to the second connecting surface.

[0027] The connecting guide part 16 attached to the ventilation unit 19 is fixed to the first side surface 19a of the ventilation unit 19 so that the guide portion 163 faces the connecting surface 19c. The connecting guide part 16 attached to the humidity control unit 20 is fixed to the second side surface 20b of the humidity control unit 20 so that the guide portion 163 faces the connecting surface 20c.

[0028] 7, the ventilation unit 19 and the humidity control unit 20 are brought close to each other and in contact with each other, and the guide portion 153 of the connecting part 15 and the guide portion 163 of the connecting guide part 16 are clamped by the connecting tool 21. Furthermore, in a state where they are clamped by the connecting tool 21, the ventilation unit 19 and the humidity control unit 20 are connected and fixed by the fixing screw 17. Specifically, the fixing screw 17 is inserted into the first side surface 19a of the ventilation unit 19 through the second screw hole 152 of the connecting part 15, and the connecting and fixing part 150 of the connecting part 15 is fixed to the ventilation unit 19. Furthermore, the fixing screw 17 is inserted into the second side surface 20b of the humidity control unit 20 through the second screw hole 152 of the connecting part 15, and the connecting and fixing part 150 of the connecting part 15 is fixed to the humidity control unit 20.

[0029] Guide portion 153 of connecting part 15 has guide hole 155, and guide portion 163 of connecting guide part 16 has guide hole 165, so that, for example, a pin-like protrusion (not shown) can be provided at the tip of the clamp portion of connecting tool 21, and the pin can be passed through guide hole 155 and guide hole 165 to position ventilation unit 19 and humidity control unit 20. Instead of using connecting tool 21, ventilation unit 19 and humidity control unit 20 may be connected by using guide hole 155 and guide hole 165 and tightening with a fastener such as a bolt.

[0030] Thus, according to the first embodiment, the connecting part 15 is provided with the guide part 153 rising from the connecting fixing part 150, and the connecting guide part 16 is provided with the guide part 163 rising from the fixing part 160, and the guide parts 153 of the connecting part 15 are provided alternately on the ventilation unit 19 and the humidity control unit 20 so as to protrude from the ventilation unit 19 and the humidity control unit 20 and face the fixing part 160 of the connecting guide part 16. This makes it easy to accurately align and connect the ventilation unit 19 and the humidity control unit 20, and improves productivity. In addition, the compression amount of the packing 14 can be adjusted by adjusting the mounting position of the connecting part 15, so that the airtight design of the ventilation device 1 can be easily accommodated.

[0031] In addition, since the guide portion 153 of the connecting part 15 and the guide portion 163 of the connecting guide part 16 can be clamped by the connecting tool 21, the ventilation unit 19 and the humidity control unit 20 can be accurately positioned, and the fixing screw 17 can be easily tightened into the second screw hole 152 of the connecting part 15. In addition, since the guide portion 153 of the connecting part 15 has a guide hole 155 and the guide portion 163 of the connecting guide part 16 has a guide hole 165, accurate positioning can be achieved when connecting the ventilation unit 19 and the humidity control unit 20 by inserting a pin-shaped positioning tool. In addition, since the guide portion 153 of the connecting part 15 or the guide portion 163 of the connecting guide part 16 has a protrusion 164, the connecting guide part 16 and the connecting part 15 can be easily positioned.

[0032] In the first embodiment, the humidity adjustment unit 20 having a humidification function is connected to the ventilation unit 19 as an additional function unit. However, an additional function unit having another function may be connected to the ventilation unit 19.

[0033] Embodiment 2 8 is a top view showing a state during a connecting operation between the ventilation unit 19 and the humidity control unit 20 of the ventilation device 1 according to embodiment 2. A connecting guide groove 22 is provided as a first recess on a first side surface 19a of the ventilation unit 19 and a first side surface 20a of the humidity control unit 20. A connecting guide groove 22 is provided as a second recess on a second side surface 19b of the ventilation unit 19 and a second side surface 20b of the humidity control unit 20.

[0034] The connecting tool 21 as the first connecting tool is clamped to the connecting guide groove 22 of the first side surface 19a of the ventilation unit 19 and the connecting guide groove 22 of the first side surface 20a of the humidity control unit 20, and the connecting tool 21 as the second connecting tool is clamped to the connecting guide groove 22 of the second side surface 19b of the ventilation unit 19 and the connecting guide groove 22 of the second side surface 20b of the humidity control unit 20, so that the ventilation unit 19 and the humidity control unit 20 can be easily brought close to each other and brought into contact with each other. After that, it becomes possible to connect the ventilation unit 19 and the humidity control unit 20 using the connecting part 15 and the connecting guide part 16 of the first embodiment described above. Note that in the second embodiment, the ventilation unit 19 and the humidity control unit 20 may be connected to each other using only the connecting part 15.

[0035] In addition, connecting guide protrusions as first convex portions may be provided on the first side surface 19a of the ventilation unit 19 and the first side surface 20a of the humidity control unit 20, and connecting guide protrusions as second convex portions may be provided on the second side surface 19b of the ventilation unit 19 and the second side surface 20b of the humidity control unit 20, and these connecting guide protrusions may be clamped with a connecting tool 21.

[0036] Embodiment 3 9 is a top view showing the configuration of a ventilation device 50 according to embodiment 3. A connection guide protrusion 25 serving as a first connection portion is provided on the first side surface 19a and the second side surface 19b of the ventilation unit 19. A connection guide protrusion 23 serving as a second connection portion is provided on the first side surface 20a and the second side surface 20b of the humidity adjustment unit 20.

[0037] The connection guide projection 25 protrudes laterally and has a base end 25a and a tip end 25b. The tip end 25b has a flat surface on the side of a connection surface (first connection surface) 19c with the humidity control unit 20 of the ventilation unit 19, and has a flange shape with the side opposite to the connection surface 19c protruding in the opposite direction to the connection surface 19c.

[0038] The connection guide projection 23 protrudes laterally and has a base end 23a and a tip end 23b. The tip end 23b has a flat surface on the side of a connection surface (second connection surface) 20c with the ventilation unit 19 of the humidity control unit 20, and has a flange shape with the side opposite to the connection surface 20c protruding in the opposite direction to the connection surface 20c.

[0039] The tip 25b of the connection guide protrusion 25 provided on the first side 19a of the ventilation unit 19 and the tip 23b of the connection guide protrusion 23 provided on the first side 20a of the humidity control unit 20 are covered and gripped and fixed by the connection fixture 24 having a hook structure. Also, the tip 25b of the connection guide protrusion 25 provided on the second side 19b of the ventilation unit 19 and the tip 23b of the connection guide protrusion 23 provided on the second side 20b of the humidity control unit 20 are covered and gripped and fixed by the connection fixture 24 having a hook structure. In this way, in the third embodiment, the connection guide protrusion 25 and the connection guide protrusion 23 are gripped and fixed by the connection fixture 24 having a hook structure, so that the ventilation unit 19 and the humidity control unit 20 are connected and fixed.

[0040] In this way, in embodiment 3, the connecting guide protrusion 25 and the connecting guide protrusion 23 are grasped and fixed by a connecting fixture 24 having a hook structure, thereby connecting and fixing the ventilation unit 19 and the humidity control unit 20, which makes it easier to align and connect the ventilation unit 19 and the humidity control unit 20, and improves productivity.

[0041] The configurations shown in the above embodiments are examples of the contents of the present disclosure, and may be combined with other known technologies, and parts of the configurations may be omitted or modified without departing from the gist of the present disclosure. [Explanation of symbols]

[0042] 1,50 ventilation device, 2 exhaust fan, 3 intake fan, 4 heat exchange element, 5 temperature control coil, 6 humidifier, 7 exhaust outlet, 8 exhaust intake, 9 intake intake, 10 intake outlet, 11 intake side dust filter, 12 exhaust side dust filter, 13 air path switching damper, 14 packing, 15 connecting parts, 16 connecting guide parts, 17 fixing screws, 18 control box, 19 ventilation unit, 19a, 20a first side, 19b, 20b second side, 19c, 20c connecting surface, 20 humidity control unit (temperature and humidity control unit), 21 connecting tool, 22 connecting guide groove, 23, 25 connecting guide protrusion, 23a, 25a base end, 23b, 25b tip end, 24 connecting fixture, 30 bypass air path, 150 Connection fixing part, 151 first screw hole, 152 second screw hole, 153, 163 guide part, 155, 165 guide holes, 160 fixing part, 162 screw hole, 164 protrusion part, B connection direction, EA exhaust air, OA outdoor air, RA indoor air, SA supply air.

Claims

1. A ventilation device in which a ventilation unit having a ventilation function and an additional function unit having an additional function are connected with a packing therebetween, a first connecting part and a second connecting part each having an L-shape, the first connecting part and the second connecting part each having a connecting and fixing part which is a long plate body and a first guide part which is a plate body rising from the connecting and fixing part; a first connecting guide part and a second connecting guide part each having an L-shape, the first connecting guide part and the second connecting guide part each having a fixed part which is an elongated plate body and a second guide part which is a plate body rising from the fixed part; Equipped with the first connecting part and the first connecting guide part are fixed to the ventilation unit and the additional function unit such that the first guide portion of the first connecting part and the second guide portion of the first connecting guide part are abutted back-to-back on a ventilation-side first side surface which is one of two side surfaces of the ventilation unit, the connecting and fixing portion of the first connecting part straddles the ventilation-side first side surface and an additional function-side first side surface which is the side surface of the additional function unit on the same side as the ventilation-side first side surface, and the fixing portion of the first connecting guide part is fixed to the ventilation-side first side surface, The second connecting part and the second connecting guide part are fixed to the ventilation unit and the additional function unit such that the first guide part of the second connecting part and the second guide part of the second connecting guide part are abutted back to back on an additional function side second side surface opposed to the additional function side first side surface, the connecting and fixing part of the second connecting part straddles the other of the two side surfaces of the ventilation unit, that is, the ventilation side second side surface and the additional function side second side surface, and the fixing part of the second connecting guide part is fixed to the additional function side second side surface. A ventilation device characterized by:

2. The first connection guide part and the second connection guide part are The second guide portion has protrusions at both ends thereof protruding away from the fixed portion, and the first guide portions of the first connecting part and the second connecting part are inserted between the protrusions.

2. The ventilation device according to claim 1 .

3. The first connecting part and the second connecting part are The first guide part has protrusions at both ends thereof protruding away from the connecting and fixing part, and the first connecting guide part and the second guide part of the second connecting guide part are inserted between the protrusions.

2. The ventilation device according to claim 1 .

4. the first connecting part and the second connecting part have guide holes for positioning in the first guide portion; The first connecting guide part and the second connecting guide part have guide holes for positioning in the second guide part.

2. The ventilation device according to claim 1 .

5. the first connecting component and the second connecting component have, in the connecting and fixing portion, a plurality of first screw holes aligned in a longitudinal direction, and a plurality of second screw holes arranged between the first screw holes and the first guide portion and aligned in the longitudinal direction, the connecting and fixing portion of the first connecting part is fixed to the additional function side first side surface of the additional function unit by screwing into the first screw hole of the first connecting part, and the connecting and fixing portion of the first connecting part is fixed to the ventilation side first side surface of the ventilation unit by screwing into the second screw hole of the first connecting part, The connecting and fixing portion of the second connecting part is fixed to the ventilation side second side surface of the ventilation unit by screwing into the first screw hole of the second connecting part, and the connecting and fixing portion of the second connecting part is fixed to the additional function side second side surface of the additional function unit by screwing into the second screw hole of the second connecting part.

2. The ventilation device according to claim 1 .

6. the ventilation side first side surface of the ventilation unit and the additional function side first side surface of the additional function unit have a first recess or a first protrusion for gripping by a first connecting tool at a position that does not interfere with the first connecting guide part and the first connecting part, The second ventilation side surface of the ventilation unit and the second additional function side surface of the additional function unit have a second recess or a second protrusion for gripping with a second connecting tool at a position that does not interfere with the second connecting part and the second connecting guide part.

2. The ventilation device according to claim 1 .

7. A method for manufacturing a ventilation device according to any one of claims 1 to 5, comprising the steps of: fixing the connecting and fixing portion of the second connecting part to the ventilation side second side surface of the ventilation unit such that a portion of the connecting and fixing portion of the second connecting part and the first guide portion protrude from a first connecting surface which is a connecting surface of the ventilation unit, and fixing the connecting and fixing portion of the first connecting part to the additional function side first side surface of the additional function unit such that a portion of the connecting and fixing portion of the first connecting part and the first guide portion protrude from the second connecting surface which is a connecting surface of the additional function unit; fixing the fixing portion of the first connection guide component to the ventilation side first side surface of the ventilation unit so that the second guide portion of the first connection guide component faces the first connection surface side, and fixing the fixing portion of the second connection guide component to the additional function side second side surface of the additional function unit so that the second guide portion of the second connection guide component faces the second connection surface side; abutting the first connecting surface of the ventilation unit and the second connecting surface of the additional function unit with the packing interposed therebetween while determining a connecting position such that the first guide portion of the first connecting part and the second guide portion of the first connecting guide part are in contact with each other and the first guide portion of the second connecting part and the second guide portion of the second connecting guide part are in contact with each other; a step of fixing the connecting and fixing part of the first connecting part to the ventilation side first side surface of the ventilation unit and fixing the connecting and fixing part of the second connecting part to the additional function side second side surface of the additional function unit to connect the ventilation unit and the additional function unit; A method for manufacturing a ventilation device, comprising:

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