CN1626969A - Structure for installing checking up door of ventilation system - Google Patents

Abstract

The invention relates to an inspection door mounting structure of air-changing system. Said inspection door mounting structure includes inspection hole which is placed on the front surface of box body, and can be used for making internal inspection and can be used as window for changing internal component, inspection door for opening and closing said inspection hole, plug rib and rib fixture which are respectively and correspondently set on the front face of box body and inspection door for mounting inspection door. Said invention also provides the concrete structure of plug rib and rib fixture and their connection mode.

Description

The inspection door mounting structure of air exchange system

Technical field

The invention belongs to electric heating switch type air exchange system, particularly relate to a kind of air that prevents and leak the inspection door mounting structure of easy-to-install air exchange system.

Background technology

Recently, because factors such as the facility of energy conservation and noise consider that the developing direction of airtightization, disconnected thermalization is tended in human living space.But contaminated when the air of such enclosure space will become carbon dioxide in the course of time, and then influence the breathing of life entity.

Therefore, little place, the many spaces of people such as office or vehicle needs often ventilation.At this moment, use the air exchange system of electric heating exchanged form usually, when being used to keep indoor air temperature, sucking extraneous air and discharge room air.

Fig. 1 points out out the diagrammatic sketch of the air exchange system institute in the prior art.As shown in the figure, form a side of the casing (10) of outward appearance, be provided with extraneous air suction inlet (12) to suck air outside.

The inside of extraneous air suction inlet (12) is provided with and is used for the suction air channel (not shown) of guiding from the extraneous air of inlet hole (12) suction.For making the air with indoor discharge carry out heat exchange, will move to the electrical heat exchanger (not shown) by sucking the air channel inhaled air.

The check hatch door (30) that will illustrate below install the front of casing (10).Check hatch door (30) is arranged at the place ahead of electrical heat exchanger, and the dismounting that makes electrical heat exchanger easily and make the check of air exchange system inside convenient.

The front right-hand end of casing (10) is provided with control cabinet (16), and the inside of control cabinet (16) is equipped with the various parts of control air exchange system operation.

From the extraneous air of extraneous air suction inlet (12) by the electrical heat exchanger (not shown), the extraneous air that is provided with in casing (10) is given under the effect of gas portion (not shown), supplies to indoor for pore (18) by the extraneous air that inlet hole (12) opposition side forms.

In addition, extraneous air forms indoor air sucting inlet (20) for the side of pore (18), makes room air be drawn into casing (10) inside of air exchange system.Simultaneously, the side of extraneous air suction inlet (12) forms room air steam vent (22), is used for discharging the room air that is drawn into air exchange system inside from indoor air sucting inlet (20).

Fig. 2 points out out the decomposition institute diagrammatic sketch of check hatch door (30) mounting structure.Fig. 3 points out out the installment state of check hatch door (30).

As shown in the figure, the front of casing (10) is provided with the check hatch (40) that electrical heat exchanger etc. is come in and gone out, and as above the check hatch (40) of structure is opened and closed by check hatch door (30) selectivity.

Check hatch door (30) is by roughly becoming the rectangular flat shape and directly covering the face that covers (32) of checking hatch (40); Form to the side guide (34,34 ') of vertical warpage in its place ahead and prolongation from the side that covers face (32).Its upper and lower side then is provided with from the upper and lower side that covers face (32) to the warpage end (36) of its vertical warpage in the place ahead, so the user was more prone to when using.

In addition, the left surface guide plate (34) of check hatch door (30) is provided with the carriage insertion groove (34a) that is used to insert the left side bracket that will illustrate below installing.Left side bracket (38) is set separately to support the left side of check hatch door (30) in the casing (10).

Thus, insert left side bracket (38) and support check hatch door (30) in the carriage insertion groove (34a).That is, the right-hand end of left side bracket (38) is inserted into carriage insertion groove (34a), and its left-hand end is then concluded in the casing (10), and the left side of check hatch door (30) is sticked on the casing (10).

Simultaneously, the right side of check hatch (40) is provided with the right brackets (42) of the right flank guide plate (34 ') that is used for fixing check hatch door (30).Right brackets (42) is by the installation portion of concluding casing (10) (42a); From the side surface part (42b) of installation portion (42a) to vertical warpage in its place ahead and prolongation; The front end of portion (42b) constitutes to the front face (42c) that the vertical warpage in its left side side forms from the side.

When the installation portion (42a) of right brackets (42) is installed to casing (10) by screw (screw) etc., the front face (42c) of right brackets (42) will switch to right flank guide plate (the 34 ') front end of check hatch door (30) mutually, makes the right side of its fixed inspection hatch door (30).

As above the check hatch door of air exchange system has following shortcoming in the prior art of structure.

In check hatch door (30) mounting structure in the prior art, the left side of check hatch door (30) is fixing by left side bracket (38), and the right side is then fixing by right brackets (42).

That is, the right flank guide plate (34 ') of check hatch door (30) is inserted and secured between the front of the front face (42c) of right brackets (42) and casing (10).But, finally cause checking the right side of hatch door (30) sagging because the deadweight of check hatch door (30) will produce sliding friction between the leading section of front face (42c) and right flank guide plate (34 ').Fig. 3 points out out the sagging situation of check hatch door (30).

Thus, check hatch door (30) can't cover check hatch (40) fully, but as shown in fig. 3, definite part will be opened in upper end, the right side of check hatch (40).Thereby, cause inner air to flow into air exchange system inside to outside outflow or extraneous air, make its purpose that can't reach room ventilation, and reduce the thermal efficiency of air exchange system.

In addition, the sagging of check hatch door (30) may be that the maloperation owing to the worker causes, makes that right brackets (42) is not correctly installed.Follow-up use also has, though under the initial correct situation that check hatch door (30) is installed, can make right brackets (42) and check between the right flank guide plate (34 ') of hatch door (30) and produce spacing, and then also sagging can take place.

Summary of the invention

The present invention provides a kind of inspection door mounting structure that prevents air leakage easy-to-install air exchange system that has for solving the technical problem that exists in the above-mentioned technology.

The technical scheme that the present invention takes for the technical problem that exists in the above-mentioned technology of solution is: the inspection door mounting structure of air exchange system of the present invention, it is used for the check hatch of internal inspection and replacing internal part and opens and closes checking the check hatch door of hatch to form by being located at the casing front end, and each correspondence is provided with and is used to install the slotting rib of checking hatch door and the rib fixture that inserts slotting rib on casing front end and check hatch door.The rib fixture is given prominence to setting in the place ahead that the casing front end forms the check hatch, and slotting rib is arranged on the check hatch door.The rib fixture forms by being arranged on that casing front end and the fixing rib of inserting rib fixedly mount portion and prolonging at the front end of rib installation portion, will insert the rib introduction part composition that rib imports to the rib installation portion, and its rib introduction part is that the front end from the rib installation portion is formed slopely to its place ahead.

Advantage of the present invention and good effect are: according to the as above inspection door mounting structure of the air exchange system of structure, the front of casing is provided with to the outstanding rib fixture in its place ahead, and the check hatch door then is provided with and inserts the slotting rib that is fixed in the rib fixture.Here, be provided with in the rib fixture and install and fix the rib installation portion of inserting rib, slotting rib is imported to the rib introduction part of rib installation portion.

Therefore, be attached under the state of casing front at the check hatch door, it is counterclockwise rotated the installation of finishing the check hatch door, under this state, will check the rotation of hatch door clockwise direction, and take out the dismounting finish the check hatch door from the place ahead, so reduced required workload.

In addition, compared with the prior art, the check hatch door is close to casing to guarantee the closed state of check hatch, prevents the external leaks of air thus, improves heat exchanger effectiveness simultaneously.

Finally, prevented by exchanging between check outside of hatch and the inner air, it is prevented in advance in prior art, the bad reduction that combines the heat exchanger effectiveness that causes with the check hatch, it is indoor to prevent that simultaneously extraneous air from flowing into by the check hatch, therefore keeps indoor environment more comfortable.

Description of drawings

Fig. 1 points out out the diagrammatic sketch of the air exchange system institute in the prior art.

Fig. 2 points out out the decomposition institute diagrammatic sketch of the inspection door mounting structure of air exchange system in the prior art.

Fig. 3 points out out the installment state front elevation of the inspection door mounting structure of air exchange system in the prior art.

Fig. 4 points out out the inspection door mounting structure example that adopted air exchange system among the present invention, the decomposition institute diagrammatic sketch of air exchange system primary structure.

Fig. 5 points out out the inspection door mounting structure example that adopted air exchange system among the present invention, air exchange system internal structure institute diagrammatic sketch.

The part front elevation that Fig. 6 points out out the electrical heat exchanger of air exchange system major part among formation the present invention that state is set.

Fig. 7 a points out out the primary structure of the inspection door mounting structure example of air exchange system among the present invention to decompose institute's diagrammatic sketch.

Fig. 7 b points out out the installment state front elevation of the inspection door mounting structure example of air exchange system among the present invention.

Fig. 8 carries under the duty that is illustrated in the electric heating ventilatory pattern, the state diagram of the air flow condition of air exchange system inside among the present invention.

Fig. 9 carries under the duty that is illustrated in general ventilatory pattern, the state diagram of the air flow condition of air exchange system inside among the present invention.

The symbol description of drawing major part:

50: casing, 52: the extraneous air suction inlet,

54: the left side sucks air channel, 56: the room air outlet,

58: scavenger fan casing, 60: electrical heat exchanger,

61: support, 62: parts support sector,

63: filter support sector, 68: prefilter,

69: handle, 73: high-performance filter,

80: scavenger fan, 82: extraneous air sends mouthful,

84: send a mouthful mounting groove, 86: give gas fan casing,

88: indoor air sucting inlet, 90: indoor suction inlet mounting groove,

92: the right side sucks air channel, 94: windscreen,

96: give gas fan, 100: control cabinet,

102: ceiling is tool, 104 fixedly: the check hatch,

110: check hatch door, 112: shield,

114: left side guide, 114 ': the left side handle,

116: right side guide plate, 116 ': the right side handle,

120: insert rib, 130: the rib fixture,

132: installation portion, 134: the rib installation portion,

136: the rib introduction part.

The specific embodiment

For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

The decomposition institute diagrammatic sketch of air exchange system one example among the present invention pointed out out in Fig. 4 summary.Fig. 5 points out out the internal structure institute diagrammatic sketch of air exchange system among the present invention.Fig. 6 points out out the electrical heat exchanger among the present invention and the sectional drawing of supporting structure.Fig. 7 a points out out the decomposition institute diagrammatic sketch of the inspection door mounting structure among the present invention.Fig. 7 b points out out the installment state front elevation of inspection door mounting structure among the present invention.

As shown in the figure, the casing (50) of formation outward appearance roughly becomes rectangular shape.Casing (50) forms the outward appearance of product integral body, when support and protection internal structure thing are provided with, prevents that foreign material from flowing into the inside of product from the outside.

The left surface of casing (50) is to the outstanding extraneous air suction inlet (52) that sucks extraneous air that is provided with in side.The left surface leading section of casing (50) forms suction inlet mounting groove (not shown), is used for inserting installation extraneous air suction inlet (52).

For make the electrical heat exchanger (60) that will illustrate below the extraneous air of suction inlet (52) suction is communicated to, the inside of extraneous air suction inlet (52) is provided with the left side and sucks air channel (54), and is located between suction inlet (52) and the electrical heat exchanger (60).That is, the left side sucks the effect that the suction passage of the smooth and easy circulation of extraneous air is played in air channel (54).

The central interior portion of casing (50) is provided with electrical heat exchanger (60).Electrical heat exchanger (60) becomes six prism shapes, and is the cross-flow type plate structure.That is, separate to, exhaust channel, outer gas and room air can not mixed with the baffle plate of special converted paper material.

Therefore, electrical heat exchanger (60) respectively imports to different streams with the air of different temperatures usually.By forming the high-efficiency thermal exchange membrane of different streams, carry out the electric heating exchange by the moisture of exchange latent heat and the heat energy of exchange sensible heat.That is, the special converted paper that electrical heat exchanger (60) uses mustn't pass through by air, and is only permitted by heat and moisture.

As above the electrical heat exchanger of structure (60) carries out giving in the device exchange of the electric heating between gas and the exhaust, absorbs the electric heating of air and be transmitted in to supply to indoor air, the less influence that is subjected to outside air of the state of room air thus from outdoor exhaust.

Such electric heating ventilatory pattern can be determined by user's selection.That is, in general, use the electric heating ventilatory pattern in summer that the indoor and outdoor temperature difference is bigger and winter; The windscreen (94) that will illustrate below then utilizing in spring that the indoor and outdoor temperature difference is little and autumn changes the air flue to outdoor discharge, makes the air of discharging to the outside general modfel without electrical heat exchanger (60).

In addition, on the fore-and-aft direction of electrical heat exchanger (60) upper and lower end parts of six prism shapes of cross section one-tenth, lengthening is provided with the support (61) of electrical heat exchanger (60).In the time of the load of support (61) support electrical heat exchanger (60) and firm support electrical heat exchanger (60), when dismantling, electrical heat exchanger (60) front and back then play the guide rail effect.

As above the support (61) of the electrical heat exchanger of structure (60) is by load that supports electrical heat exchanger (60) and the parts support sector (62) that guides its front and back to move, and prolongs the filter support sector (63) that forms from parts support sector (62) to its side and form.

Parts support sector (62) is by this contact level (62 ') that switches to casing (50) mutually, and constitutes to the outstanding parts contact-making surface that forms in its top (62 ") at the two ends of this contact level (62 ').That is, the central portion of parts support sector (62) caves in into tunnel-shaped, and the bottom of tunnel-shaped and casing (50) are tangent.Filter support sector (63) is tilted to prolong the inclined plane (63 ') that forms to its side-lower by the side from parts support sector (62), and the warpage rib of the formation of vertical warpage with inclined plane (63 ') (63 ") form.

The side edge of electrical heat exchanger (60) is provided with side guide (64).Side guide (64) is by the parts support sector (65) of twining electrical heat exchanger (60) edge, and filter support sector (66) composition of giving prominence to formation from parts support sector (65).Filter support sector (66) is by from the vertically outstanding vertical plane (66 ') that forms of parts support sector (65), and the warpage rib that forms to its side warpage from vertical plane (66 ') (66 ") composition.

Promptly, the parts support sector (65) of side guide (64) is arranged on the edge of electrical heat exchanger (60), contact and embayment knife-edge shape roughly the outstanding a pair of filter support sector (65) that forms of each face of the parts support sector (65) of tulwar shape simultaneously with the both sides of edges face.

In addition, between the filter support sector (63) of relative support (61) and side guide (64) slidably prefilter (68) of front and back is installed.Prefilter (68) is arranged on the both sides, bottom of electrical heat exchanger (60), is used for the foreign material of filtered air.

Be provided with two before and after electrical heat exchanger (60) is general, slidably, move to make things convenient for front and back before and after electrical heat exchanger (60) supports also by above-mentioned electrical heat exchanger (60) support (61) so the front of electrical heat exchanger (60) is provided with handle (69) separately.

[that is, prefilter (68) is arranged at the lower left side of the electrical heat exchanger (60) of extraneous air suction, is used for filtering the extraneous air foreign material, improves protection electrical heat exchanger (60) when supplying to indoor air quietness degree.In addition, the prefilter (68) that is arranged on electrical heat exchanger (60) right side, bottom filter from indoor to the air that discharge the outside foreign material, so can protect electrical heat exchanger (60) and prolong its life-span.】

The upper right of electrical heat exchanger (60) also is provided with high-performance filter (73), and high-performance filter (73) filters the powder dust particle in the extraneous air that is sucked once more.Promptly, utilize bigger dust in prefilter (68) the disposable filtering air of fiber mat shape, and finish electric heating when (60) through electrical heat exchanger, the air by electrical heat exchanger (60) filters out wherein trickle foreign material by high-performance filter (73) again.

In addition, the left side rearward end of casing (50) is provided with the room air outlet (56) that room air is discharged to the outside, and outlet (56) inserts and is fixed in the outlet mounting groove (not shown) that forms in the casing (50).The inside of outlet mounting groove is provided with scavenger fan casing (58), makes the room air of forcing to send by the following scavenger fan that will illustrate (80) be directed to room air outlet (56).

The inboard of scavenger fan casing (58) is provided with room air scavenger fan (80).Scavenger fan (80) by the following indoor air sucting inlet that will illustrate (88) inhaled air force to pass out to outlet (56), fan is good with multi blade fan.

The right side leading section of casing (50), that is, extraneous air suction inlet (52) is provided with the opposition side of position, is provided with extraneous air and sends mouthful (82).Send right flank that mouthful (82) be inserted into casing (50) and form and send in mouthful mounting groove (84), and be provided with to its right side side's certain-length is outstanding from the right flank of casing (50).In addition, the inside of sending a mouthful mounting groove (84) is provided with to gas fan casing (86), and feasible being directed to by the following outdoor air that pressure is sent to gas fan (96) that will illustrate sent mouthful (82).

The right side rearward end of casing (50), that is, the opposition side that room air outlet (56) is provided with the position is provided with indoor air sucting inlet (88).Indoor air sucting inlet (88) is provided with to its right side side is outstanding from the right flank of casing (50), and is fixed in the indoor suction inlet mounting groove (90) of the circle that the right flank rearward end of casing (50) forms.In addition, the inside of indoor suction inlet mounting groove (90) is provided with the right side and sucks air channel (92), makes to be directed to the electrical heat exchanger (60) from indoor air sucting inlet (88) inhaled air.

Simultaneously, the inside that the right side sucks air channel (92) is provided with windscreen (94), makes the room air selectivity that sucks by indoor air sucting inlet (88) flow in the electrical heat exchanger (60).That is, windscreen (94) opens and closes suction air channel (92), right side according to the control of the following control cabinet that will illustrate (100).Thus, when windscreen (94) covered suction air channel, right side (92), the room air that sucks by indoor air sucting inlet (88) did not pass through electrical heat exchanger (60), and directly discharges to the outside by room air outlet (56).

Extraneous air send be provided with between mouthful (82) and the room air outlet (56) be used for to extraneous air send mouthful (82) force to send extraneous air to gas fan (96).Make and giving under the effect of gas fan (96), send mouthful (82) to indoor discharge by extraneous air from the extraneous air of extraneous air suction inlet (52) suction.

The control cabinet (100) that will illustrate below the front of casing (50) is provided with also is provided with fixedly tool (102) of ceiling in addition, and air exchange system can be fixedly installed on the ceiling.In addition, the front central portion of casing (50) forms check hatch (104), and the check hatch door (110) that will illustrate below the front of check hatch (104) is provided with opens and closes check hatch (104) with selectivity.

The right side front end of casing (50) is provided with control cabinet (100).The inside of control cabinet (100) forms control part, is used to control the condition of work of air exchange system.That is, the control power supply is opening (on)/close (off) air exchange system, and the fan rotation number adjusting air quantity of gas fan (96) and scavenger fan (80) is given in control.In addition, by regulating the drive mechanism (not shown) of windscreen (94), to control scavenging way like electric heating switch mode or general ventilatory pattern.

The place ahead of check hatch (104) is provided with check hatch door (110) to cover check hatch (104).Therefore, when the parts that comprise electrical heat exchanger (60) need be replaced or overhaul, open check hatch door (110) and take out electrical heat exchanger (60) etc.

Check hatch door (110) is made up of following structure:

Roughly become the rectangular flat shape and directly cover the shield (112) of checking hatch (104); Also prolong the left surface guide plate (114) that forms from the left-hand end of shield (112) to the vertical warpage in its place ahead; Also prolong the right flank guide plate (116) that forms from the right-hand end of shield (112) to the vertical warpage in its place ahead.

In addition, the top and bottom of shield (112) are provided with the warpage end (118) to its place ahead warpage separately.Check the switching of hatch door (110) easy for making, the central portion of left surface guide plate (114) is provided with left side handle (114 '), and the central portion of right flank guide plate (116) is provided with right side handle (116 ').

As above the check hatch door (110) of structure is installed in casing (50) by the device of concluding that is arranged on casing (50) fronts (50 ') and check hatch door (110).Wherein, on the check hatch door (110) slotting rib (120) is set.

Insert rib (120) be inserted into below on the rib fixture (130) that forms of front that will illustrate, casing (50 '), and be good with four edges that radial direction respectively is formed on check hatch door (110).

The front (50 ') of casing (50) is provided with the rib fixture (130) that is used for installing check hatch door (110).Rib fixture (130) is given prominence to formation from casing (50) fronts (50 ') to its place ahead, and is arranged on four edges of check hatch (104), and the position of inserting rib (120) with check hatch door (110) is corresponding.

In addition, rib fixture (130) is made up of following structure:

Be fixed to the installation portion (132) of casing (50) fronts (50 ') with screw (S); Prolong outstanding certain-length from installation portion (132) to its place ahead, and the fixing rib installation portion (134) of inserting rib (120); Prolong the rib introduction part (136) that forms to its place ahead inclination certain angle from the front end of rib installation portion (134).

Therefore, import when inserting the front end of rib (120) from rib introduction part (136), it is outstanding and when forming the rib installation portion (134) of certain groove to be inserted into its place ahead certain-length, unless the outside applies reciprocal active force, just can keep its state.So check hatch door (110) will be fixed to the front (50 ') of casing.

Pass through the as above mobile state of air exchange system indoor-outdoor air of the present invention of structure below with reference to Fig. 8 and Fig. 9 explanation.

Fig. 8 points out out under the electric heating ventilatory pattern air flow condition by air exchange system.The electric heating ventilatory pattern generally is used for indoor and outdoors temperature and the bigger situations of psychrometric difference such as summer or winter.

Following reference illustrates the ventilation state, and when the user selected the electric heating ventilatory pattern, according to the instruction of the inner control part of control cabinet (100), the open right side of windscreen (94) sucked air channel (92).

Simultaneously, along with starting working for gas fan (96), extraneous air is drawn into air exchange system inside by extraneous air suction inlet (52).The extraneous air that the is drawn into side that keeps left sucks air channel (54) and imports, and is drawn into the inside of electrical heat exchanger (60) through the lower left side face of electrical heat exchanger (60).At this moment, extraneous air will be drawn into the inside of electrical heat exchanger (60) by being installed on the prefilter (68) of electrical heat exchanger (60) lower left side face behind the airborne foreign material to be filtered.

The room air that is drawn into inner air of electrical heat exchanger (60) and discharge carries out the exchange of heat and moisture, and discharges by the upper right face of electrical heat exchanger (60).Here, the upper right of electrical heat exchanger (60) is provided with high-performance filter (73), is filtered by the trickle foreign material of electrical heat exchanger (60) again, makes air more pure and fresh.

Air by electrical heat exchanger (60) and high-performance filter (73) is forced to send by the above-mentioned gas fan (96) of giving, and the extraneous air of the right flank setting by casing (50) is sent mouthful (82) and is discharged to indoor.

In addition, room air is discharged to the outside by scavenger fan (80).Room air is drawn into air exchange system inside by indoor air sucting inlet (88), sucks the inside that air channel (92) imported and be drawn into through the lower right side of electrical heat exchanger (60) electrical heat exchanger (60) by the right side.

The lower right side of electrical heat exchanger (60) is provided with prefilter (68), with airborne foreign material in the filter chamber.Thus, electrical heat exchanger (60) inside is drawn into fresh air, prolongs its life-span in the time of protection electrical heat exchanger (60).

Be drawn into the inner room air of electrical heat exchanger (60) and carry out the exchange of heat and moisture, and discharge by the lower left side face of electrical heat exchanger (60) with the outside outer gas that sucks.Force to send by scavenger fan (80) from the room air that electrical heat exchanger (60) is discharged, and the room air outlet (56) that the left surface rearward end by casing (50) is provided with is discharged to the outside.

Below with reference to Fig. 9 air flow condition under the general ventilatory pattern is described.General ventilatory pattern is applied to the temperature and the little situation of psychrometric difference of indoor and outdoors such as spring or autumn, and room air will directly not shunted (bypass) and be discharged to the outside by electrical heat exchanger (60).

Therefore, when the user selected general ventilatory pattern, according to the instruction of the inner control part of control cabinet (1 0), windscreen (94) covered the right side and sucks air channel (92).At this moment, will force to pass out to room air outlet (56) and discharge by scavenger fan (80) without electrical heat exchanger (60) by indoor air sucting inlet (88) inhaled air to the outside.

Below observe the mobility status of extraneous air, when starting working for the gas fan, extraneous air is drawn into air exchange system inside by extraneous air suction inlet (52), the extraneous air that the is drawn into side that keeps left sucks air channel (54) and imports, and is drawn into the inside of electrical heat exchanger (60) through the lower left side face of electrical heat exchanger (60).Extraneous air will be drawn into the inside of electrical heat exchanger (60) by being installed on the prefilter (68) of electrical heat exchanger (60) lower left side face behind the airborne foreign material to be filtered.

Room air is drawn into the inner air of electrical heat exchanger (60), owing to not by electrical heat exchanger (60), will not carry out the exchange of heat and moisture and directly discharges by the upper right face of electrical heat exchanger (60).Here, the upper right of electrical heat exchanger (60) is provided with high-performance filter (73), is filtered by the trickle foreign material of electrical heat exchanger (60) again, makes air more pure and fresh.

Air by electrical heat exchanger (60) and high-performance filter (73) is forced to send by giving gas fan (96), and the extraneous air of the right flank setting by casing (50) is sent mouthful (82) and is discharged to indoor.

As mentioned above, general ventilatory pattern is different from the electric heating ventilatory pattern, the inner exchange of not carrying out heat and moisture of its electrical heat exchanger (60).

The following describes the installation and removal process of check hatch door (110).

Observe the front (50 ') of casing (50) earlier the process of checking hatch door (110) is installed.At first, utilize the left side handle (114 ') and the right side handle (116 ') of check hatch door (110) to hold check hatch door (110), when checking hatch door (110) in the clockwise direction, under the situation of certain angle of promptly tilting to the right, the shield (112) of check hatch door (110) moves to the rear, is attached at the front (50 ') of casing (50).

When check hatch door (110) is attached at the front of casing when (50 '), left side handle (114 ') and the right side handle (116 ') of holding check hatch door (110) are not put, to check hatch door (110) rotation counterclockwise, then insert rib (120) and switch to rib introduction part (136) back of rib fixture (130) mutually, and import to rib installation portion (134).

That is, the installation portion (132) of rib fixture (130) is fixed in the front (50 ') of casing and keeps elastic stage by screw (S).Therefore, when slotting rib (120) imported to rib introduction part (136) and moves to rib installation portion (134), rib fixture (130) was inserted rib (120) and is arrived rib installation portion (134) in the time of the bending of its place ahead.

When slotting rib (120) arrives rib installation portion (134), because rib installation portion (134) forms to the outstanding groove of its place ahead certain-length, will check the rotation of hatch door (110) clockwise direction unless apply certain active force, then keep state shown in Fig. 7 b.

Observe the process of dismounting check hatch door (110) in the casing (50) again.The unloading process and the installation process reversed in order of check hatch door (110).

Promptly, shown in Fig. 7 b, be installed under the situation of casing (50) fronts (50 ') at check hatch door (110), when handle (114 ') and right side handle (116 ') turn clockwise on the left of holding, then insert the rib installation portion (134) that rib (120) breaks away from rib fixture (130), and extract through rib introduction part (136).

Thus, the check hatch door (110) among the present invention is by being rotated counterclockwise the front (50 ') that above-mentioned check hatch door (110) is installed to casing; On the contrary, turn clockwise by it and simply finish separating action.

As above the present invention of structure is not confined to this example, in its technical scope, is that various deformation can be carried out in the basis with the present invention.

For example, in this example, the front (50 ') of casing (50) is provided with rib fixture (130), and check hatch door (110) then is provided with slotting rib (120).Get on the contrary, the front (50 ') of casing is provided with slotting rib (120), and check hatch door (110) is provided with rib fixture (130) and also can.

In addition, in above-mentioned example, rib fixture (130) is additional separately to be provided with, and is installed in the casing (50) by screw (S).If rib fixture (130) is not provided with separately, but directly with casing (50) or check hatch door (110) integrally formed also harmless.

Claims (4)

1. the inspection door mounting structure of an air exchange system, the casing front end is used for internal inspection and the check hatch door changing the check hatch of internal part and open and close the check hatch is formed by being located at for it, it is characterized in that each correspondence is provided with on casing front end and check hatch door to be used to install the slotting rib of check hatch door and the rib fixture that inserts slotting rib.

2. the inspection door mounting structure of a kind of air exchange system according to claim 1 is characterized in that the rib fixture in the outstanding setting in the casing front end the place ahead that forms the check hatch, and slotting rib is arranged on the check hatch door.

3. the inspection door mounting structure of a kind of air exchange system according to claim 1 and 2, it is characterized in that the rib fixture prolongs by the front end that is arranged on casing and the fixing rib installation portion of inserting rib with at the front end of rib installation portion forms, will insert the rib introduction part composition that rib imports to the rib installation portion.

4. the inspection door mounting structure of a kind of air exchange system according to claim 3, the rib introduction part that it is characterized in that the rib fixture are that the front end from the rib installation portion is formed slopely to its place ahead.

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