CN220582674U

CN220582674U - Total heat exchanger

Info

Publication number: CN220582674U
Application number: CN202321400167.8U
Authority: CN
Inventors: 闫华振
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2024-03-12
Anticipated expiration: 2033-06-02

Abstract

The utility model discloses a total heat exchanger, comprising: the bottom plate of the shell is provided with an access hole, and the shell is provided with a limiting component at the access hole; the cross section of the heat exchange core body is of a quadrilateral structure; the fan assembly comprises two fans; the support frame comprises a plurality of first installation clamping grooves which are vertically arranged; the fans are arranged in the shell, and the two fans are configured to drive airflow to flow through the heat exchange core body for heat exchange; the corner of the access hole is provided with the first mounting clamping grooves, the heat exchange core body is arranged in the shell through the access hole and clamped among the first mounting clamping grooves, and the limiting part supports the heat exchange core body. The maintenance convenience of the total heat exchanger is improved.

Description

Total heat exchanger

Technical Field

The utility model relates to the technical field of air treatment equipment, in particular to a total heat exchanger.

Background

With the increasing energy conservation requirements of users for air treatment facilities, the use of total heat exchangers is becoming increasingly widespread. The total heat exchanger is a high-efficiency energy-saving air conditioner ventilation device, when the indoor and outdoor ventilation is carried out, the indoor and outdoor air passes through the heat exchange core body of the total heat exchanger, so that the air flowing in from the outdoor and the air discharged from the indoor are subjected to heat exchange, and the temperature difference between the indoor and outdoor air is fully utilized, so that the indoor temperature fluctuation is minimized.

During use, the total heat exchanger is periodically maintained as needed, with conventional maintenance typically being a better heat exchange core. As disclosed in chinese patent publication No. CN 217109881U, a total heat exchanger is provided with a service plate at a side portion of a case, and when service is required, a core can be replaced by opening the service plate at the side portion.

However, in the actual operation process, the plate is generally hung on a roof or embedded in a suspended ceiling when being installed in a user's home of the total heat exchanger, and therefore, when the maintenance plate on the side is opened for maintenance operation, the plate is limited by space, and the operation difficulty is high. How to design a total heat exchanger for improving maintenance convenience is a technical problem to be solved by the utility model.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background technology, the utility model provides a total heat exchanger, which realizes the improvement of the maintenance convenience of the total heat exchanger.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

In some embodiments of the present application, there is provided a total heat exchanger comprising:

the bottom plate of the shell is provided with an access hole, and the shell is provided with a limiting component at the access hole;

the cross section of the heat exchange core body is of a quadrilateral structure;

the fan assembly comprises two fans;

the support frame comprises a plurality of first installation clamping grooves which are vertically arranged;

the fans are arranged in the shell, and the two fans are configured to drive airflow to flow through the heat exchange core body for heat exchange; the corner of the access hole is provided with the first mounting clamping grooves, the heat exchange core body is arranged in the shell through the access hole and clamped among the first mounting clamping grooves, and the limiting part supports the heat exchange core body.

In an embodiment of the present application, the whole limiting part has a plate structure, and the whole limiting part spans across the access hole and is located below the heat exchange core;

or the whole limiting part is in a strip-shaped structure, and the whole limiting part spans over the overhaul port and is positioned below the heat exchange core body.

In an embodiment of the present application, the limiting component includes a plurality of separation blades, the separation blade is movably disposed on the bottom plate of the casing and is close to the access hole, the separation blade is configured to change the position and stretches into in the access hole and bear the heat exchange core.

In one embodiment of the present application, the blocking piece is rotatably disposed on the bottom plate of the casing through a rotating shaft;

or, a guide groove is formed in the bottom plate of the shell, the opening of the guide groove faces the overhaul hole, and the baffle plate is slidably arranged in the guide groove.

In an embodiment of the present application, a first ventilation opening and a second ventilation opening are provided at one end of the casing, a third ventilation opening and a fourth ventilation opening are provided at the other end of the casing, one fan is communicated with the first ventilation opening, and the other fan is communicated with the second ventilation opening;

the support frame further comprises a first partition plate, two second partition plates and a third partition plate, and the first installation clamping grooves are respectively formed in the end parts of the first partition plate, the second partition plate and the third partition plate;

the first partition plate is positioned between the two fans, one second partition plate is positioned between the second air inlet and the corresponding side of the fans, the other second partition plate is positioned between the fourth air inlet and the corresponding side of the fans, and the third partition plate is positioned between the second air inlet and the fourth air inlet; the first, second and third partition plates are vertically arranged and disposed between the top and bottom plates of the cabinet.

In an embodiment of the present application, the third partition plate and the second partition plate are respectively provided with the second installation clamping groove, a filter is arranged between the third partition plate and the second partition plate, the end part of the filter is arranged in the second installation clamping groove on the corresponding side, and the filter is attached to the side part of the heat exchange core body.

In an embodiment of the present application, the edge of the access hole is further provided with a notch structure matching with the size of the filter, and the second mounting clamping groove is located in an area formed by the notch structure.

In an embodiment of the present application, the cross-sectional dimension of the heat exchange core is not greater than the dimension of the access hole, and the first installation slot is located in an area formed by the access hole.

In an embodiment of the present application, the casing is further provided with an access cover for opening and closing the access opening; the access cover is in a closed state, and covers the access opening, and meanwhile, the access cover also covers the limiting component.

In an embodiment of the application, the access cover is detachably arranged on the bottom plate of the casing, mounting holes are formed in four corners of the access cover, screw holes are formed in the bottom plate of the casing, and screws penetrate through the mounting holes and are in threaded connection with the screw holes;

Or one side part of the access cover is rotatably arranged on the bottom plate of the shell, and the other side part of the access cover is connected on the bottom plate of the shell through a screw;

or, mounting sliding grooves are formed in the bottom plate of the casing and located on two sides of the access hole, and the side parts of the access cover are slidably arranged in the mounting sliding grooves on the corresponding sides.

Compared with the prior art, the utility model has the advantages and positive effects that: through set up the access hole on the bottom plate of casing, the access hole is arranged in the below of heat exchange core, when equipment and dismantlement, the heat exchange core all carries out corresponding operation via the access hole, and in order to satisfy the installation requirement of heat exchange core, a plurality of first installation draw-in grooves can be disposed around the access hole, so that the heat exchange core is installed between a plurality of first installation draw-in grooves, when the heat exchange core needs to be dismantled, dismantle the support of spacing part to the heat exchange core, alright make the heat exchange core dismantle from the access hole through vertical arrangement's first installation draw-in groove direction, and the access hole is arranged at the bottom plate of casing, maintenance operation space is bigger, make maintenance personnel's operation more convenient, the effectual maintenance process of having simplified is in order to improve the maintenance convenience.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a total heat exchanger according to the present application;

FIG. 2 is a second schematic structural view of an embodiment of the total heat exchanger of the present application;

FIG. 3 is a schematic view of the enclosure of FIG. 1 with the top plate removed;

FIG. 4 is a schematic view of the total heat exchanger of FIG. 1 with the access cover removed;

FIG. 5 is a schematic view of the total heat exchanger of FIG. 4 with heat exchange cores removed;

FIG. 6 is a schematic view of the bottom plate of the hidden housing of FIG. 5;

FIG. 7 is an enlarged partial schematic view of area A of FIG. 5;

FIG. 8 is a schematic diagram illustrating the assembly of the housing and the supporting frame in FIG. 1;

FIG. 9 is a schematic view of the blower assembly of FIG. 1;

FIG. 10 is a schematic view of another embodiment of the total heat exchanger of the present application;

FIG. 11 is a schematic view of the total heat exchanger of FIG. 10 with the access cover removed;

FIG. 12 is a partially enlarged schematic illustration of region B of FIG. 11;

FIG. 13 is a schematic view of the heat exchange core of FIG. 10 removed and the bottom plate of the housing hidden;

FIG. 14 is an assembled view of the housing and the support frame of FIG. 10;

FIG. 15 is a schematic view of the blower assembly of FIG. 10;

FIG. 16 is a schematic view of a still further embodiment of the total heat exchanger of the present application;

fig. 17 is an enlarged partial schematic view of region C in fig. 16.

Reference numerals:

a housing 1;

the sliding bearing part 11, the fixing part 12, the access hole 13, the access cover 14, the notch structure 15, the bearing part 16, the lap joint part 17, the fixing connection plate 18 and the limiting part 19;

a first flange 111, a second flange 112, a baffle 191, a first vent 101, a second vent 102, a third vent 103, and a fourth vent 104;

a heat exchange core 2;

a fan assembly 3;

mounting a hanging frame 31 and a fan 32;

a sliding fit portion 311, a fixed fit portion 312, a lap fit portion 313, and a guide flange 314;

a support frame 4;

the disassembly and assembly partition area 40, the first partition plate 41, the second partition plate 42, the third partition plate 43, the first installation clamping groove 44 and the guide pressing component 45;

A guide slope 451;

and a filter 5.

Description of the embodiments

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The total heat exchanger generally comprises a shell, a fan and a heat exchange core body, wherein the fan and the heat exchange core body are arranged in the shell, two ventilation openings connected with the indoor side are arranged on the shell, two ventilation openings connected with the outdoor side are also arranged on the shell, one fan sucks indoor air through the ventilation openings on the indoor side, and then discharges the air out of the room through the ventilation openings on the outdoor side after exchanging heat through the heat exchange core body, and the other fan sucks outdoor air through the ventilation openings on the outdoor side and discharges the air into the room through the ventilation openings on the indoor side after exchanging heat through the heat exchange core body.

During use, maintenance of the total heat exchanger is required, for example: and replacing and maintaining the heat exchange core body, or replacing and maintaining the fan.

For maintenance operation of the fan, the whole total heat exchanger needs to be detached from the roof by the conventional technology, and the workload of detaching the whole fan is large, so that the maintenance difficulty is increased, and the maintenance efficiency is reduced. In view of this, referring to the first and second embodiments, at least two schemes are provided to meet the requirements of disassembly and maintenance of the fan without disassembling the whole.

An embodiment, as shown in fig. 1 to 9, the total heat exchanger provided in an embodiment of the present application includes: the heat exchange device comprises a shell 1, a heat exchange core 2, two fan assemblies 3 and a supporting frame 4.

Wherein, casing 1 is as total heat exchanger main part structure, and its outside is provided with lug (not marked) in order to satisfy the requirement of furred ceiling suspension installation. In order to meet the indoor and outdoor ventilation requirements, one end part of the casing 1 is provided with a first ventilation opening 11 and a second ventilation opening 12, and the first ventilation opening 11 and the second ventilation opening 12 are used for communicating an indoor space; the other end portion of the casing 1 is provided with a third air vent 13 and a fourth air vent 14, and the third air vent 13 and the fourth air vent 14 are used for communicating an outdoor space.

The top plate of the casing 1 is provided with a sliding bearing part 11 and a fixed part 12 at positions close to the first ventilation opening 101 and the third ventilation opening 103 respectively; an access hole 13 is arranged on the bottom plate of the casing 1, and an access cover 14 is arranged on the access hole 13.

Two independent heat exchange flow passages are formed in the heat exchange core body 2, and heat exchange can be performed between the two independent heat exchange flow passages, so that the heat exchange between the air flow output from the indoor and the fresh air flow introduced from the outdoor is satisfied, and the indoor cooling capacity or heat dissipation is reduced. The specific structure of the heat exchange core 2 may refer to a core in a conventional total heat exchanger, and the specific heat exchange flow channel structure is not limited and described herein.

The fan assembly 3 comprises a mounting hanging frame 31 and a fan 32, the fan 32 is arranged on the mounting hanging frame 31, and the mounting hanging frame 31 is provided with a sliding matching part 311 and a fixed matching part 312;

the support frame 4 is provided with an installation part, and the support frame 4 is also provided with two dismounting spacing areas 40;

wherein, the sliding matching part 311 is slidably lapped on the sliding bearing part 11, the fixed matching part 312 is fixedly connected with the fixed part 12, one fan 32 is communicated with the first ventilation opening 101, and the other fan 32 is communicated with the second ventilation opening 102; the supporting frame 4 is arranged in the shell 1 and surrounds the overhaul port 13, and the disassembly and assembly spacing area 40 is positioned between the overhaul port 13 and the fan assembly 3 on the corresponding side; the heat exchange core 2 is arranged on the mounting part and is positioned at the access opening 13.

Specifically, the bottom plate of the casing 1 in this embodiment is provided with an access opening 13, and the heat exchange core 2 can be removed from the casing 1 by using the access opening 13, and a new heat exchange core 2 can be replaced and installed, and at the same time, the fan assembly 3 inside the casing 1 can be removed from the casing 1 from the access opening 13.

In order to meet the requirement that the fan assembly 3 can be disassembled and assembled without disassembling the shell 1, the supporting frame 4 for installing the heat exchange core 2 is correspondingly designed, and meanwhile, the installation structure of the fan assembly 3 is correspondingly optimized.

Specifically, the support frame 4 is formed with a disassembly and assembly spacer 40, and the disassembly and assembly spacer 40 is arranged between the fan assembly 3 and the access opening 13, so that the fan assembly 3 in the casing 1 can be pulled out from the disassembly and assembly spacer 40 after the fixed connection limitation is released, and then is taken out from the casing 1 through the access opening 13.

While for the installation of the fan assembly 3, it is slidingly fitted into the casing 1 and fixed after assembly in place. Specifically, the casing 1 is provided with a sliding bearing portion 11, and the sliding bearing portion 11 can be matched with the sliding matching portion 311 on the mounting rack 31, so as to satisfy sliding assembly of the mounting rack 31 in the casing 1. And the fixing engaging portion 312 engages with the fixing portion 12 to satisfy the fixing locking after the mounting hanger 31 is assembled in place.

In the disassembly process, after the operator removes the heat exchange core 2 from the casing 1 through the access opening 13, the operator can extend his/her hand into the casing 1 through the space formed by the access opening 13 and the disassembly and assembly space 40 to unlock the connection between the fixing portion 12 and the fixing engaging portion 312, and then pull the fan assembly 3 to finally disengage the sliding engaging portion 311 from the sliding bearing portion 11. In this way, the fan assembly 3 is integrally dropped onto the bottom plate of the casing 1, and the position of the fan assembly 3 is adjusted so that the fan assembly 3 is taken out of the casing 1 sequentially via the dismounting spacer 40 and the access opening 13.

Through set up the access hole on the bottom plate of casing, the access hole can satisfy the packing into and dismantle the requirement of heat exchange core, and be used for installing the support frame of heat exchange core and arrange around the access hole, and, the support frame is further in order to satisfy the requirement that fan subassembly carried out dismouting maintenance from the access hole and is formed the dismouting interval, meanwhile, to fan subassembly, the fan will hang the roof of installing on the casing through the installation stores pylon, in the equipment and dismantle the in-process, rely on sliding fit portion and sliding bearing portion cooperation to realize pull formula dismouting, fan subassembly can be followed and pulled out from the access hole in the dismouting interval, maintenance change, in this way, can need not to dismantle whole total heat exchanger from the furred ceiling, the effectual maintenance process of having simplified is in order to improve the maintenance convenience.

In another embodiment of the present application, for the support frame 4, on the one hand, it is necessary to meet the requirements for mounting the heat exchange core 2 and, on the other hand, to reserve enough space to form the dismounting compartment 40, for which purpose the support frame 4 comprises a first partition plate 41 and two second partition plates 42, the first partition plate 41 and the second partition plates 42 being arranged in the casing 1 and around the access opening 13; the mounting portions are provided at the edges of the first and second partition plates 41 and 42, and a detachable partition 40 is formed between the first and second partition plates 41 and 42.

Specifically, the support frame 4 employs a plurality of partition plates, the end portion of the partition plate close to the access hole 13 is provided with the mounting portion, and the region between the first partition plate 41 and the second partition plate 42 forms the attaching/detaching space 40.

The heat exchange core 2 is located between a first partition plate 41 and two second partition plates 42, the first partition plate 41 is disposed at a side portion of the casing 1 and located between two fan assemblies 3, the second partition plates 42 are disposed at corresponding ends of the casing 1, the two second partition plates 42 are oppositely disposed, one second partition plate 42 is located between the second air inlet 102 and the fan assembly 3 on the corresponding side, and the other second partition plate 42 is located between the fourth air inlet 104 and the fan assembly 3 on the corresponding side.

Specifically, the first partition plate 41 is disposed in the casing 1 and cooperates with the heat exchange core 2 to space the two fan assemblies 3 apart, so that the air flow output from the indoor space is isolated from the air flow input from the outdoor space by cooperating with the heat exchange core 2.

Similarly, the second partition plate 42 serves to separate the first ventilation opening 101 and the second ventilation opening 102 on the indoor side and the third ventilation opening 103 and the fourth ventilation opening 104 on the outdoor side, in addition to the heat exchange core 2.

Thus, a first air flow channel is formed among the first ventilation opening 101, one fan 32, the heat exchange core 2 and the fourth ventilation opening 104, and a second air flow channel is formed among the third ventilation opening 103, the other fan 32, the heat exchange core 2 and the second ventilation opening 102.

In another embodiment, the support frame 4 includes a third partition plate 43, the third partition plate 43 is disposed at a side portion of the casing 1 and located between the second ventilation opening 102 and the fourth ventilation opening 104, the third partition plate 43 is disposed opposite to the first partition plate 41, the edge of the third partition plate 43 is also provided with the mounting portion, and the heat exchange core 2 is located among the first partition plate 41, the two second partition plates 42 and the third partition plate 43.

Specifically, the support frame 4 supports and installs the heat exchange core 2 through the installation parts arranged at the end parts of the four partition boards, so as to ensure that the heat exchange core 2 can be firmly supported and stably installed in the casing 1.

And four division plates are matched with the heat exchange core body 2 in the shell 1, so that the first air flow channel and the second air flow channel can be better isolated.

In another embodiment of the present application, for the air entering the heat exchange core 2, no matter whether the indoor or outdoor air is trapped with impurities such as dust, in order to improve the quality of the air entering the heat exchange core 2, the filter 5 may be disposed on the air inlet side of both sides of the heat exchange core 2, and in order to facilitate the installation of the filter 5, the filter 5 may be disposed between the third partition plate 43 and the second partition plate 42.

Specifically, the filter 5 is mounted via the second partition plate 42 and the third partition plate 43, and the filter 5 is closely attached to the air inlet side region corresponding to the heat exchange core 2 to filter the air flow entering the heat exchange core 2.

In actual use, the air entering from the outside of the room can be subjected to multistage filtration as required, for which purpose the filter 5 for the air entering from the outside of the filter chamber can be arranged as a plurality of filters 5 arranged side by side for multistage filtration according to different filtration functions.

In one embodiment, the installation part may be in the form of an installation slot, and the installation part is a first installation slot 44 formed at an end of the partition board, and similarly, for convenience in installing the filter 5, the second installation slots may be respectively provided on the third partition board 43 and the second partition board 42, the filter 5 may be provided between the third partition board 43 and the second partition board 42, and an end of the filter 5 may be disposed in the second installation slot on the corresponding side.

Specifically, the corners of the heat exchange core 2 are inserted into the corresponding first mounting slots 44, and the filter 5 is mounted between the two second mounting slots which are oppositely arranged. The heat exchange core body 2 and the filter 5 are installed in a clamping groove installation mode, and in the actual dismounting process, the heat exchange core body is dismounted in an up-and-down push-pull mode, so that the on-site operation of maintenance personnel is more convenient.

In some embodiments, the cross-sectional dimension of the heat exchange core 2 is no greater than the dimension of the access opening 13, and the first mounting clip groove 44 is located in the area formed by the access opening 13.

Specifically, the size of the opening of the access hole 13 is required to be matched with the cross-sectional size of the heat exchange core 2, so as to meet the requirement that the heat exchange core 2 is smoothly pulled out from the casing 1. Similarly, the overall opening size of the access opening 13 needs to be larger than the outer contour size of the fan assembly 3, so that when the fan assembly 3 is disassembled and assembled, the fan assembly 3 can smoothly enter and exit the access opening 13.

In another embodiment, the edge of the access opening 13 is further provided with a notch structure 15 matching the size of the filter 5, and the second mounting groove is located in the area formed by the notch structure 15.

Specifically, since the filter 5 is installed through the second installation slot, when the filter is used in a later period, the filter needs to be positioned for replacement and maintenance, and in order to facilitate processing of the casing 1, a notch structure 15 may be provided on a corresponding side of the access opening 13.

The notch structure 15 is to be matched with the corresponding second mounting slot, and the vertical projection of the second mounting slot in the use state is located in the area formed by the notch structure 15, so that the filter 5 can be installed in the second mounting slot through the notch structure 15, and similarly, the filter 5 can be pulled out and detached from the notch structure 15 by a maintainer conveniently.

In another embodiment of the present application, the sliding bearing portion 11 is a bearing plate disposed on a top plate of the casing 1, one side of the bearing plate is provided with a first folded edge 111, and a slot is formed between the first folded edge 111 and the top plate of the casing 1; the sliding matching part 311 is a turned edge arranged on the mounting rack 31, and the turned edge is inserted into the slot;

the end part of the bearing plate is provided with a second folded edge 112, the second folded edge 112 is provided with a threaded hole, and the fixing part 12 is a bolt in threaded connection with the threaded hole; the fixing fitting portion 312 is a mounting through hole provided on the mounting hanger 31, through which a bolt passes.

Specifically, in order to satisfy the fact that the mounting hanger 31 can slide in the housing 1 via the guide of the slide bearing 11, the slide bearing 11 may be a bearing plate provided on the top plate of the housing 1.

The slot is formed between the bearing plate and the top plate of the shell 1 through the first folded edge 111 so as to meet the requirement that the flange of the mounting hanging frame 31 is inserted into the slot, on one hand, sliding is realized through the cooperation of the flange and the slot, and on the other hand, the hanging and mounting requirements of the mounting hanging frame 31 are met through the lap joint of the flange on the first folded edge.

In addition, after the mounting hanger 31 is assembled in place, the mounting hanger 31 is firmly fixed to the carrier plate by bolts passing through mounting through holes in the mounting hanger 31 and being screwed into screw holes provided in the second flange 112.

In another embodiment, other structures may be used for the representation entities of the sliding bearing portion 11 and the sliding matching portion 311. For example: the sliding bearing part 11 is a sliding rail arranged on the top plate of the casing 1, the sliding matching part 311 is a sliding groove arranged on the mounting rack 31, and the sliding rail is arranged in the sliding groove; a fixing protrusion is arranged on the top plate of the shell 1, a threaded hole is arranged on the fixing protrusion, and the fixing part 12 is a bolt in threaded connection with the threaded hole; the fixing fitting portion 312 is a mounting through hole provided on the mounting hanger 31, through which a bolt passes.

In some embodiments of the present application, the housing 1 is further provided with a supporting portion 16, and the supporting portion 16 is supported on the bottom surface of the mounting rack 31 and is disposed away from the corresponding sliding bearing portion 11; the slide bearing 11 is configured to slide with the slide engaging portion 311 toward the mounting hanger 31 toward or away from the bearing portion 16.

Specifically, the mounting hanger 31 is engaged with the sliding bearing portion 11 by the sliding engagement portion 311 to suspend the mounting hanger 31, and in order to improve the reliability of assembly, a portion of the mounting hanger 31 away from the sliding bearing portion 11 is also required to be supported. For this purpose, a support 16 is provided in the housing 1, and the bottom surface of the mounting bracket 31 can further overlap the support 16 remote from the sliding support 11, so that the mounting bracket 31 can be stably supported.

The sliding bearing part 11 is guided to slide back and forth in the casing 1 along the direction in which the mounting rack 31 slides close to or away from the bearing part 16. In this way, when the mounting hanger 31 is pushed and pulled, the mounting hanger 31 can be close to overlap the bearing portion 16 or away from the bearing portion 16 so that the mounting hanger 31 is separated from the support of the bearing portion 16.

In one embodiment, the supporting portion 16 is a baffle fixed on the casing 1, the free end of the baffle is suspended, and the bottom surface of the mounting rack 31 is lapped on the free end of the baffle.

Specifically, the bearing portion 16 may adopt a baffle disposed in the casing 1 in a suspended manner, and the baffle may be carried on the bottom surface of the mounting rack 31 to be matched with the sliding carrying portion 11 to stably support and mount the mounting rack 31.

In a second embodiment, as shown in fig. 10 to 15, the total heat exchanger provided in another embodiment of the present application includes: the heat exchange device comprises a shell 1, a heat exchange core 2, two fan assemblies 3 and a supporting frame 4.

Referring to the first embodiment, in order to meet the indoor and outdoor ventilation requirements, the casing 1 is provided with a first ventilation opening 11 and a second ventilation opening 12 at one end portion of the casing 1, and a third ventilation opening 13 and a fourth ventilation opening 14 at the other end portion of the casing 1.

In order to meet the requirement of the detachable fan assembly 3, the top plate of the casing 1 is provided with a lap joint part 17 and a fixing part 12 at positions close to the first ventilation opening 101 and the third ventilation opening 103; the bottom plate of the shell 1 is provided with an access hole 13, the access hole 13 is provided with an access cover 14, the lap joint part 17 is far away from the access hole 13, and the fixed part 12 is close to the access hole 13;

for the fan assembly 3, the fan assembly 3 includes a mounting hanger 31 and a fan 32, and the fan 32 is disposed on the mounting hanger 31. In order to meet the installation requirements of the lap joint part 17 and the fixed part 12, the installation hanging frame 31 is correspondingly provided with a lap joint matching part 313 and a fixed matching part 312;

likewise, referring to the first embodiment, the supporting frame 4 is provided with an installation portion, and two dismounting spacers 40 are further provided on the supporting frame 4;

Wherein the supporting frame 4 is arranged in the casing 1 and surrounds the access hole 13, the dismounting interval zone 40 is positioned between the access hole 13 and the fan assembly 3 at the corresponding side, the lap joint matching part 313 is lapped on the lap joint part 17, and the fixed matching part 312 is fixedly connected with the fixed part 12 and positioned at the corresponding dismounting interval zone 40; one fan 32 is communicated with the first ventilation opening 101, and the other fan 32 is communicated with the second ventilation opening 102; the heat exchange core 2 is arranged on the mounting part and is positioned at the access opening 13.

In order to meet the requirement that the fan assembly 3 can be disassembled and assembled without disassembling the casing 1, the supporting frame 4 is provided with a disassembly and assembly spacing area 40, and the disassembly and assembly spacing area 40 is arranged between the fan assembly 3 and the overhaul port 13, so that the fan assembly 3 in the casing 1 can be pulled out of the disassembly and assembly spacing area 40 after the fixed connection limitation is removed, and then is taken out from the casing 1 through the overhaul port 13.

For the fan assembly 3, one end of the mounting hanger 31 is engaged with the engaging portion 17 through the engaging portion 313 to achieve an engaging installation of one end, and the other end of the mounting hanger 31 is engaged with the fixing portion 12 through the fixing engaging portion 312 to achieve a fixed locking after the mounting hanger 31 is assembled in place.

Wherein, overlap joint portion 17 keeps away from access hole 13 like this for after installation stores pylon 31 is pushed in casing 1, only need adjust the position of installation stores pylon 31 front end portion so that overlap joint mating portion 313 can overlap on overlap joint portion 17, and then solve the interior inconvenient maintenance personal of direction of keeping away from access hole 13 of casing 1 and stretch into the technical problem of operation.

In addition, the fixing portion 12 and the fixing engaging portion 312 are close to the access opening 13, so that a maintenance person can perform the dismounting operation by using a large operation space formed by the access opening 13.

In the disassembly process, after the operator removes the heat exchange core 2 from the casing 1 through the access hole 13, the operator can extend his/her hand into the casing 1 through the space formed by the access hole 13 and the disassembly and assembly space 40 to unlock the connection between the fixing portion 12 and the fixing mating portion 312, and then pull the fan assembly 3 to separate the lap joint portion 31 from the lap joint portion 17. In this way, the fan assembly 3 is integrally dropped onto the bottom plate of the casing 1, and the position of the fan assembly 3 is adjusted so that the fan assembly 3 is taken out of the casing 1 sequentially via the dismounting spacer 40 and the access opening 13.

Through set up the access hole on the bottom plate of casing, the access hole can satisfy the packing into and dismantle the requirement of heat exchange core, and be used for installing the support frame of heat exchange core and arrange around the access hole, and, the support frame is further in order to satisfy the fan subassembly and carry out the requirement of dismouting maintenance from the access hole and form the dismouting interval, meanwhile, to the fan subassembly, the fan will be installed on the casing through the lapped mode, in the equipment with dismantle the in-process, only need will be released and be connected between fixed cooperation portion and the fixed part, the fan subassembly can be pulled out from the dismouting interval and take out from the access hole, maintenance change carries out, in this way, alright need not to dismantle whole total heat exchanger from the furred ceiling, the effectual maintenance process of having simplified is in order to improve the maintenance convenience.

In another embodiment of the present application, the mounting hanger 31 is provided with an extension extending to the outside of the blower 32, which forms a snap fit 313.

Specifically, in order to meet the requirement of overlapping installation of the end of the installation hanger 31, an extension portion may be formed on the installation hanger 31, which will protrude to the outside of the blower 32 to meet the requirement of overlapping installation.

The lap joint 17 may be a lap joint plate fixed on the casing 1, one end of the lap joint plate is fixed on the casing 1, and the other end of the lap joint plate is suspended.

Specifically, the lap plate arranged in a suspended manner is arranged in the casing 1, and when the fan assembly 3 is assembled, the free end of the lap plate can extend into the bottom of the extension part formed by the mounting hanger 31, so as to meet the requirement of lap mounting.

In another embodiment, the support frame 4 comprises a first partition plate 41 and two second partition plates 42, the first partition plate 41 and the second partition plates 42 being arranged in the casing 1 and around the access opening 13; the mounting portions are provided at the edges of the first and second partition plates 41 and 42, and a detachable partition 40 is formed between the first and second partition plates 41 and 42.

Specifically, referring to the description of the support frame 4 in the first embodiment, the support frame 4 in the present embodiment also adopts a plurality of partition plates, and the disassembly and assembly partition area 40 is formed between the first partition plate 41 and the second partition plate 42, so as to meet the disassembly and assembly requirements of the fan assembly 3.

The heat exchange core 2 is located between a first partition plate 41 and two second partition plates 42, the first partition plate 41 is disposed at a side portion of the casing 1 and located between two fan assemblies 3, the second partition plates 42 are disposed at corresponding end portions of the casing 1, the two second partition plates 42 are oppositely arranged, one second partition plate 42 is located between the second air inlet 102 and the fan assembly 3 at the corresponding side, and the other second partition plate 42 is located between the fourth air inlet 104 and the fan assembly 3 at the corresponding side; in addition, a first air flow channel is formed among the first ventilation opening 101, one fan 32, the heat exchange core 2 and the fourth ventilation opening 104, and a second air flow channel is formed among the third ventilation opening 103, the other fan 32, the heat exchange core 2 and the second ventilation opening 102.

In some embodiments, since the two ends of the mounting hanger 31 may be fixed by the fixing engaging portion 312 and the lap engaging portion 313, a margin of movement still exists on the side portion of the mounting hanger 31, and for this purpose, the two sides of the first partition 41 are respectively provided with the guide pressing members 45, and the end portion of the guide pressing members 45 facing the dismounting partition 40 is formed with the guide inclined surface 451;

the side of the mounting hanger 31 is provided with a guide flange 314, the guide flange 314 being configured to be guided against the guide pressing member 45 via a guide slope 451, the mounting hanger 31 being sandwiched between the guide pressing member 45 and the corresponding end of the cabinet 1.

Specifically, when the fan assembly 3 is installed in the housing 1, as the overlap portion 313 approaches the overlap portion 17, the guide flange 314 of the mounting hanger 31 gradually contacts the guide inclined surface 451 and is finally pressed against the housing 1 by the guide pressing member 45, so as to limit the mounting hanger 31 from shaking in the housing 1, thereby improving the mounting quality.

In another embodiment, the support frame 4 further comprises a third spacer plate 43.

Specifically, the mounting manner of the third partition plate 43 is the same as that of the third partition plate 43 in the first embodiment, and the support frame 4 supports and mounts the heat exchange core 2 through the mounting portions provided at the ends of the four partition plates, so as to ensure that the heat exchange core 2 can be firmly supported and stably mounted in the casing 1.

The first mounting groove 44 formed at the end of the partition plate serves as a mounting portion for positioning and mounting the heat exchange core 2.

Similarly, for the air entering the heat exchange core 2, no matter what the indoor or outdoor air is, dust or other sundries are trapped, in order to improve the quality of the air entering the heat exchange core 2, in some embodiments, the filter 5 may be disposed on the air inlet side of both sides of the heat exchange core 2, and in order to facilitate the installation of the filter 5, the filter 5 may be disposed between the third partition plate 43 and the second partition plate 42.

Specifically, by arranging the filters 5 on the two air inlet sides of the heat exchange core 2, the filters 5 are closely attached to the corresponding air inlet side areas of the heat exchange core 2, so as to filter the air flow entering the heat exchange core 2.

In order to meet the requirement of disassembling the filter 5, a notch structure matched with the size of the filter 5 may be further disposed at the edge of the access hole 13, and the second mounting slot is located in the area formed by the notch structure 15.

Specifically, the notch structure 15 is to be matched with the corresponding second mounting slot, and the vertical projection of the second mounting slot in the use state is located in the area formed by the notch structure 15, so that the filter 5 can be installed in the second mounting slot through the notch structure 15, and similarly, the filter 5 can be pulled out and detached from the notch structure 15 by a maintainer conveniently.

For the size of the access opening 13 and the size of the notch structure 15, the disassembly and assembly requirements of the heat exchange core 2 and the filter 5 need to be satisfied, and the description in the first embodiment may be referred to specifically, and details are not described herein.

In an embodiment of the present application, the expression entity of the fixing portion 12 may be a bolt, for this purpose, a fixing connection plate 18 may be provided on the top of the casing 1, a threaded hole is provided on the fixing connection plate 18, and the fixing portion 12 is a bolt screwed in the threaded hole; the fixing fitting portion 312 is a mounting through hole provided on the mounting hanger 31, through which a bolt passes.

Specifically, the bolts can fasten the mounting hanger 31 to the fixing connection plate 18 to ensure a firm fixed mounting of the mounting hanger 31.

In the third embodiment, for the heat exchange core, the conventional technology generally performs disassembly, assembly and maintenance by means of the opening at the side of the casing, and the maintenance difficulty is high due to the small maintenance space.

As shown in fig. 1-15, in an embodiment of the present application, there is further provided a total heat exchanger, including: the heat exchange device comprises a shell 1, a heat exchange core 2, two fan assemblies 3 and a supporting frame 4.

The bottom plate of casing 1 is provided with access hole 13, and casing 1 is provided with spacing part 19 in access hole 13 department, and the cross-section of heat exchange core 2 is the quadrangle structure, and heat exchange core 2 can be through the access hole 13 dismouting of casing 1 bottom.

In order to meet the requirement of dismounting the bottom of the heat exchange core 2, the support frame 4 comprises a plurality of first mounting clamping grooves 44, and the first mounting clamping grooves 44 are vertically arranged;

wherein the fans 32 of the fan assembly 3 are arranged in the shell 1, and the two fans 32 are configured to drive air flow to flow through the heat exchange core 2 for heat exchange; the first mounting clamping grooves 44 are distributed at the corners of the access opening 13, the heat exchange core 2 is arranged in the casing 1 through the access opening 13 and clamped among the first mounting clamping grooves 44, and the limiting component 19 supports the heat exchange core 2.

Specifically, when the heat exchange core 2 is attached and detached, the plurality of first attachment grooves 44 distributed around the access port 13 are used for positioning and attachment. And the bottom of the shell 1 is matched with the overhaul port 13 to realize the disassembly and assembly of the heat exchange core 2 at the bottom of the shell 1. And because the bottom operation space of the shell 1 is larger, the maintenance personnel can more conveniently carry out maintenance operation.

In the actual disassembly and assembly process, the limit of the limit part 19 on the heat exchange core 2 needs to be released, and the limit part 19 leaves the area below the access hole 13, so that the access hole 13 is completely opened, and the heat exchange core 2 can be pulled out downwards from the first installation clamping groove 44.

Due to the vertical arrangement of the first mounting clip groove 44, the heat exchange core 2 can be pulled out by smooth downward sliding through the guiding of the first mounting clip groove 44. Similarly, when the heat exchange core 2 is assembled, the corner of the heat exchange core 2 is aligned with the corresponding first mounting slot 44, after pushing the heat exchange core 2, the heat exchange core 2 can be assembled into the casing 1, and finally, the heat exchange core 2 is supported and limited at the bottom of the heat exchange core 2 through the limiting component 19.

Through set up the access hole on the bottom plate of casing, the access hole is arranged in the below of heat exchange core, when equipment and dismantlement, the heat exchange core all carries out corresponding operation via the access hole, and in order to satisfy the installation requirement of heat exchange core, a plurality of first installation draw-in grooves can be disposed around the access hole, so that the heat exchange core is installed between a plurality of first installation draw-in grooves, when the heat exchange core needs to be dismantled, dismantle the support of spacing part to the heat exchange core, alright make the heat exchange core dismantle from the access hole through vertical arrangement's first installation draw-in groove direction, and the access hole is arranged at the bottom plate of casing, maintenance operation space is bigger, make maintenance personnel's operation more convenient, the effectual maintenance process of having simplified is in order to improve the maintenance convenience.

In another embodiment of the present application, the limiting member 19 is integrally in a plate-like structure, and the limiting member 19 integrally spans over the access opening 13 and is located below the heat exchange core 2.

Specifically, the limiting component 19 is in a plate-shaped structure so as to support the heat exchange core 2 at the bottom of the heat exchange core 2, and the limiting component 19 spans over the access hole 13 in a detachable manner. When the heat exchange core 2 needs to be maintained and replaced, the limiting component 19 is detached from the shell 1, so that the heat exchange core 2 can be pulled out of the shell 1.

The detachable mode can be a conventional detachable installation mode such as screw fixation, and the like, and is not limited and described in detail herein.

Similarly, in another embodiment, the limiting component 19 is integrally in a strip-shaped structure, and the limiting component 19 integrally spans over the access hole 13 and is located below the heat exchange core 2.

Specifically, the limiting member 19 is fixed to the bottom of the casing 1 in a strip shape in a supporting beam manner to limit and support the heat exchange core 2 above.

In some embodiments, as shown in fig. 16 and 17, to reduce the amount of screws, the limiting member 19 includes a plurality of blocking pieces 191, where the blocking pieces 191 are movably disposed on the bottom plate of the casing 1 and close to the access opening 13, and the blocking pieces 191 are configured to change positions to extend into the access opening 13 and carry the heat exchange core 2.

Specifically, the position of the baffle 191 can be changed on the bottom plate of the casing 1 according to the need, so as to meet the disassembly and assembly requirements of the heat exchange core 2. In a normal use state, the baffle plate moves to the bottom of the heat exchange core 2 to support the heat exchange core 2.

When the heat exchange core 2 needs to be maintained and replaced, the blocking piece 191 is moved to a position outside the access hole 13, so that the heat exchange core 2 can be separated from the access hole 13.

The blocking piece 191 may be movable by rotation or sliding. For example, the blocking piece 191 is rotatably provided on the bottom plate of the casing 1 by a rotation shaft. Specifically, the position of the baffle is changed by rotating the baffle, so that the requirement of dismounting and mounting the heat exchange core body 2 is met.

Alternatively, a guide groove (not shown) is provided on the bottom plate of the casing 1, the opening of the guide groove faces the access opening 13, and the blocking piece 191 is slidably provided in the guide groove. Specifically, the sliding of the push-pull baffle 191 in the guide groove enables the baffle 191 to change the position so as to meet the requirement of disassembling and assembling the heat exchange core 2.

In another embodiment of the present application, the housing 1 is further provided with an access cover 14 for opening and closing the access opening 13; access cover 14 in the closed condition, access cover 14 covers access opening 13, and access cover 14 also covers stop member 19.

Specifically, the access cover 14 is used for completely covering the access opening 13 to meet the design requirement of the external appearance of the casing 1, and at the same time, the access cover 14 further shields the limiting component 19.

When the heat exchange core body 2 needs to be disassembled and assembled, the access cover 14 is opened first, and then the limit of the limit part 19 is released, so that the heat exchange core body 2 can be replaced and maintained.

Among them, there are various ways of opening and closing the access cover 14.

For example, the access cover 14 is detachably provided on the bottom plate of the cabinet 1, the four corners of the access cover 14 are provided with mounting holes, the bottom plate of the cabinet 1 is provided with screw holes through which screws pass and are screwed.

Alternatively, one side portion of the access cover 14 is rotatably provided on the bottom plate of the cabinet 1, and the other side portion of the access cover 14 is coupled to the bottom plate of the cabinet 1 by screws.

Alternatively, the bottom plate of the casing 1 is provided with mounting runners on both sides of the access opening 13, and the sides of the access cover 14 are slidably disposed in the mounting runners on the corresponding sides.

In another embodiment, for the casing 1, in order to meet the indoor and outdoor ventilation requirements, similarly, one end of the casing 1 is provided with a first ventilation opening 101 and a second ventilation opening 102, the other end of the casing 1 is provided with a third ventilation opening 103 and a fourth ventilation opening 104, one fan 32 is in communication with the first ventilation opening 101, and the other fan 32 is in communication with the second ventilation opening 102.

Meanwhile, for the support frame 4, in order to effectively support the first mounting groove 44, the support frame 4 further includes a first partition plate 41, two second partition plates 42 and a third partition plate 43, and the first mounting groove 44 is provided at the ends of the first partition plate 41, the second partition plate 42 and the third partition plate 43, respectively. And, the second mounting card grooves may be provided on the second partition plate 42 and the third partition plate 43 to meet the mounting requirements of the filter 5. The specific installation mode may refer to the descriptions of the first and second embodiments, and will not be repeated herein.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A total heat exchanger, comprising:

the fan assembly comprises two fans;

2. The total heat exchanger according to claim 1, wherein the limiting member is integrally formed in a plate-like structure, and the limiting member integrally spans the access opening and is positioned below the heat exchange core;

3. The total heat exchanger of claim 1, wherein the spacing member comprises a plurality of baffles movably disposed on the floor of the housing and adjacent the access opening, the baffles configured to shift positions extending into the access opening and carrying the heat exchange core.

4. A total heat exchanger according to claim 3, wherein the baffle is rotatably disposed on the bottom plate of the casing through a rotation shaft;

5. The total heat exchanger according to claim 1, wherein one end of the casing is provided with a first vent and a second vent, the other end of the casing is provided with a third vent and a fourth vent, one of the fans is communicated with the first vent, and the other of the fans is communicated with the second vent;

6. The total heat exchanger according to claim 5, wherein second mounting grooves are provided on the third and second partition plates, respectively, a filter is provided between the third and second partition plates, an end of the filter is provided in the second mounting groove on the corresponding side, and the filter is abutted against a side portion of the heat exchange core.

7. The total heat exchanger of claim 6, wherein the edge of the access port is further provided with a notch structure matching the size of the filter, and the second mounting clip groove is located in an area formed by the notch structure.

8. The total heat exchanger according to any one of claims 1 to 7, wherein the heat exchange core has a cross-sectional dimension not greater than the dimension of the access opening, and the first mounting groove is located in an area formed by the access opening.

9. The total heat exchanger according to claim 1, wherein the housing is further provided with an access cover for opening and closing the access opening; the access cover is in a closed state, and covers the access opening, and meanwhile, the access cover also covers the limiting component.

10. The total heat exchanger according to claim 9, wherein the access cover is detachably provided on a bottom plate of the casing, mounting holes are provided at four corners of the access cover, screw holes are provided on the bottom plate of the casing, and screws pass through the mounting holes and are screwed in the screw holes;