Hoisting type heat recovery fresh air machine

Abstract

The utility model discloses a hoisting type heat recovery fresh air machine which comprises a machine shell, an outdoor air inlet and an outdoor air outlet are formed in the side wall of the machine shell, and a first inserting groove and a second inserting groove are formed in the machine shell. The first inserting groove is located in the inner side of the outdoor air inlet and communicated with the outdoor air inlet. The second inserting groove is positioned on the inner side of the outdoor air outlet and is communicated with the outdoor air outlet; a first filter element and a second filter element are respectively inserted into the first inserting groove and the second inserting groove; outdoor fresh air passes through the outdoor air inlet and the first filter element and then enters the machine shell. And indoor air in the machine shell passes through the second filter element and then is exhausted from the outdoor air outlet. The hoisting type heat recovery fresh air machine can solve the problems that when the filter element of the hoisting type fresh air machine is replaced, the cover plate needs to be dismantled, and operation is inconvenient, and the filter element replacement process is simpler, more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the field of fresh air system technology, specifically a suspended heat recovery fresh air system. Background Technology

[0002] As an air purification device, the core function of a fresh air system is to drive indoor air circulation. It uses mechanical power to bring fresh outdoor air into the room after sterilization, disinfection, and filtration, while expelling stale indoor air to the outside, thus ensuring that the indoor air remains fresh and clean at all times.

[0003] Ceiling-mounted fresh air systems have significant advantages due to their unique installation method: they are usually installed inside the ceiling, without taking up floor and wall space, effectively enhancing the sense of spaciousness in the room; and they can achieve ventilation in all rooms of the house, meeting the air purification needs of large-area houses, thus gaining widespread popularity.

[0004] However, existing ceiling-mounted fresh air systems still have significant drawbacks during use: because the filter element is installed inside the casing, the cover must be removed before the filter element can be replaced, which makes the replacement process extremely inconvenient. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a suspended heat recovery fresh air unit, which can solve the problem of the need to remove the cover plate and the inconvenience of operation when replacing the filter element of the suspended fresh air unit, making the filter element replacement process simpler and faster.

[0006] The technical solution of this utility model is to provide a suspended heat recovery fresh air unit with the following structure: a housing, an outdoor air inlet and an outdoor air outlet on the side wall of the housing, a first insertion slot and a second insertion slot on the housing, the first insertion slot being located inside the outdoor air inlet and communicating with it; the second insertion slot being located inside the outdoor air outlet and communicating with it; a first filter element and a second filter element are respectively inserted into the first insertion slot and the second insertion slot; outdoor fresh air enters the housing after passing through the outdoor air inlet and the first filter element; indoor air inside the housing is discharged from the outdoor air outlet after passing through the second filter element.

[0007] With the above structure, the suspended heat recovery fresh air unit of this utility model has the following advantages compared with the prior art:

[0008] Because the suspended heat recovery fresh air unit of this utility model has a first insertion slot and a second insertion slot on the casing that are respectively connected to the outdoor air inlet and the outdoor air outlet, the first filter element and the second filter element are inserted into them respectively. This makes it possible to replace the filter element without removing the cover plate. The old filter element can be directly pulled out from the insertion slot and the new filter element can be inserted to complete the operation. This greatly simplifies the replacement process and improves the convenience of use. At the same time, it ensures that the filtration path of outdoor fresh air and indoor air is smooth and does not affect the normal air purification function of the fresh air unit.

[0009] As an improvement, the housing includes a main housing and a base plate. The lower end of the main housing has an opening, and the base plate is installed at the lower end of the main housing and covers the opening. The main housing has a first slot on its inner side, located at the outdoor air inlet. The base plate has a first through hole at a position corresponding to the first slot. The first through hole and the first slot are aligned, forming the first insertion slot. With this structure, the housing consists of a main housing and a base plate. The lower opening of the main housing is covered by the base plate. The first slot on the inner side of the main housing is aligned with the corresponding first through hole on the base plate to form the first insertion slot. This structure ensures the stability of the first filter element insertion and allows for easy replacement of the first filter element without removing the entire housing or complex cover plate. Simply remove the base plate and easily remove the filter element through the first through hole and the first slot, further simplifying the operation process and improving maintenance convenience, while not affecting the normal filtration and circulation of outdoor fresh air.

[0010] As an improvement, a first baffle is provided inside the first through hole, the first baffle sealing the first through hole and blocking the lower side of the first filter element. With this structure,

[0011] As an improvement, the base plate is provided with at least two first clearance grooves, which are located on both sides of the first through hole and are connected to the first through hole. The first baffle is provided with first grooves on both sides at positions corresponding to the two first clearance grooves. With this structure, the two first clearance grooves on the base plate are located on both sides of the first through hole and are connected to it. Combined with the corresponding first grooves on both sides of the first baffle, when replacing the first filter element, the clearance grooves and grooves provide operating space for hands or tools, making it easier to hold or remove the filter element. This further reduces the difficulty of replacing the filter element, making maintenance operations more effortless and convenient, while not affecting the stability of the filter element after installation or the fresh air filtration effect.

[0012] As an improvement, the inner wall of the main housing is provided with first protrusions on both sides of the outdoor air inlet, and each of the two first protrusions is provided with a first embedding groove. The two first embedding grooves and the inner wall of the main housing form a first retaining groove. There is space between the outdoor air inlet and the first filter element embedded in the first retaining groove. With this structure, the first protrusions on both sides of the outdoor air inlet on the inner wall of the main housing form a first retaining groove with the inner wall through the first embedding groove, which can securely embed the first filter element and prevent it from shaking and shifting during equipment operation. At the same time, the reserved space between the outdoor air inlet and the first filter element ensures the smooth flow of outdoor fresh air, avoids affecting the air intake due to the filter element being installed too tightly, improves the stability of filter element installation, takes into account the fresh air flow efficiency, and does not affect the convenience of filter element replacement through the first insertion groove.

[0013] As an improvement, the main housing is provided with a second slot on the inner side of the outdoor exhaust vent, and a second through hole is provided on the base plate at a position corresponding to the second slot. The second through hole and the second slot are aligned, forming the second insertion slot. With this structure, the second slot on the inner side of the main housing at the outdoor exhaust vent is aligned with the corresponding second through hole on the base plate to form the second insertion slot. This not only securely inserts the second filter element, preventing it from shaking during equipment operation, but also allows for easy replacement of the second filter element without disassembling complex components. After removing the base plate, it can be easily replaced through the second through hole and the second slot, simplifying the maintenance process. At the same time, it ensures that the indoor air filtered by the second filter element is discharged smoothly from the outdoor exhaust vent, without affecting the equipment's exhaust efficiency.

[0014] As an improvement, a second baffle is provided inside the second through hole. The second baffle seals the second through hole and blocks the lower side of the second filter element. With this structure, the second baffle inside the second through hole seals the through hole and blocks the lower side of the second filter element, which can further stabilize the second filter element, prevent it from falling off during equipment operation or disassembly of the base plate, and enhance installation reliability. It can also prevent unfiltered air from flowing directly through the second through hole, ensuring that indoor air must be filtered by the second filter element before being discharged. At the same time, it does not affect the convenience of replacing the filter element by removing the base plate, thus balancing fixation, filtration effect, and maintenance convenience.

[0015] As an improvement, the base plate is provided with at least two second clearance grooves, which are located on both sides of the second through hole and are connected to the second through hole. The second baffle is provided with second grooves on both sides, corresponding to the two second clearance grooves. With this structure, the two second clearance grooves on the base plate are located on both sides of the second through hole and are connected to it, corresponding to the second grooves on both sides of the second baffle. This design provides convenient space for operating the second baffle, facilitating quick disassembly or installation of the second baffle when replacing the second filter element, further simplifying the filter element replacement process. At the same time, it does not affect the stabilizing effect of the second baffle on the second filter element or the sealing effect on the second through hole, thus balancing operational convenience and equipment reliability.

[0016] As an improvement, a second protrusion is provided on the inner wall of the main housing on both sides of the outdoor exhaust vent. Each of the two second protrusions has a second embedding groove, forming a second locking groove between the two second embedding grooves and the inner wall of the main housing. A space is left between the outdoor exhaust vent and the second filter element embedded in the second locking groove. With this structure, the second protrusions on both sides of the outdoor exhaust vent on the inner wall of the main housing form a second locking groove with the inner wall through the second embedding groove, which can securely embed the second filter element and prevent it from shaking or shifting during equipment operation. At the same time, the reserved space between the outdoor exhaust vent and the second filter element ensures smooth airflow after the indoor air is filtered by the filter element, avoiding the impact of excessively tight filter element installation on the exhaust volume. This improves the stability of the filter element installation while also considering exhaust efficiency, and does not affect the convenience of replacing the filter element through the second insertion groove. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the suspended heat recovery fresh air unit of this utility model;

[0018] Figure 2 This is an exploded structural diagram of the hoisted heat recovery fresh air unit of this utility model;

[0019] Figure 3 This is a partial exploded structural diagram of the hoisted heat recovery fresh air unit of this utility model;

[0020] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0021] Figure 5 for Figure 3 A magnified structural diagram of part B.

[0022] The figure shows: 1. Main housing, 101. Outdoor air inlet, 102. Outdoor air outlet, 103. First protrusion, 104. First embedded groove, 105. First baffle, 106. First groove, 107. Second protrusion, 108. Second embedded groove, 109. Second baffle, 110. Second groove, 2. Base plate, 201. First through hole, 202. First clearance groove, 203. Second through hole, 204. Second clearance groove, 3. First filter element, 4. Second filter element. Detailed Implementation

[0023] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0024] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0025] It should also be understood that the terms “comprising,” “including,” “having,” and “containing”, when used in this specification, indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0026] like Figures 1 to 5 As shown, this utility model discloses a suspended heat recovery fresh air unit, including a housing. An outdoor air inlet 101 and an outdoor air outlet 102 are provided on the side wall of the housing. A first filter element 3 is provided on the inner side of the outdoor air inlet 101, and a second filter element 4 is provided on the inner side of the outdoor air outlet 102.

[0027] The housing includes a main housing 1 and a base plate 2. The lower end of the main housing 1 has an opening, and the base plate 2 is installed at the lower end of the main housing 1 and covers the opening of the main housing 1.

[0028] Since the first filter element 3 needs to be replaced periodically, it is detachably connected to the housing. The housing is provided with a first insertion slot, which is connected to the outdoor air inlet 101.

[0029] On the inner wall of the main housing 1, on both sides of the outdoor air inlet 101, there are first protrusions 103. Each of the two first protrusions 103 has a first embedding groove 104, forming a first retaining groove between the two first embedding grooves 104 and the inner wall of the main housing 1. A space is left between the outdoor air inlet 101 and the first filter element 3 embedded in the first retaining groove. On the base plate 2, at a position corresponding to the first retaining groove, there is a first through hole 201. The first through hole 201 is aligned with the first retaining groove, and the first through hole 201 and the first retaining groove form the first insertion groove.

[0030] A first baffle 105 is provided inside the first through hole 201, which seals the first through hole 201 and blocks the lower side of the first filter element 3. At least two first clearance grooves 202 are provided on the bottom plate 2, located on both sides of the first through hole 201 and connected to it. A first groove 106 is provided on both sides of the first baffle 105 at positions corresponding to the two first clearance grooves 202.

[0031] Since the second filter element 4 needs to be replaced periodically, it is detachably connected to the housing. The housing is provided with a second insertion slot, which is connected to the outdoor air inlet 101.

[0032] On the inner wall of the main housing 1, on both sides of the outdoor air inlet 101, there are two second protrusions 107. Each of the two second protrusions 107 has a second embedding groove 108, forming a second retaining groove between the two second embedding grooves and the inner wall of the main housing 1. A space is left between the outdoor air inlet 101 and the second filter element 4 embedded in the second retaining groove. On the base plate 2, at a position corresponding to the second retaining groove, there is a second through hole 203. The second through hole 203 is aligned with the second retaining groove, and the second through hole 203 and the second retaining groove form the second insertion groove.

[0033] A second baffle 109 is provided inside the second through hole 203, which seals the second through hole 203 and blocks the lower side of the second filter element 4. At least two second clearance grooves 204 are provided on the bottom plate 2, located on both sides of the second through hole 203 and connected to it. A second groove 110 is provided on both sides of the second baffle 109 at positions corresponding to the two second clearance grooves 204.

[0034] This utility model discloses a suspended heat recovery fresh air unit. During operation, outdoor fresh air enters the casing after passing through the outdoor air inlet 101 and the second filter element 4; indoor air inside the casing is discharged from the outdoor exhaust outlet 102 after passing through the second filter element 4. To replace the first filter element 3, first remove the first baffle 105 from the first through hole 201, and then the first filter element 3 can be removed from the first insertion slot. To replace the second filter element 4, first remove the second baffle 109 from the second through hole 203, and then the second filter element 4 can be removed from the second insertion slot.

[0035] Beneficial effects of the technical solution: In this technical solution, the first and second slots can firmly fix the corresponding filter elements and prevent them from shaking during operation; the avoidance slot and the groove cooperate to facilitate the disassembly and assembly of the baffle, so that filter element replacement does not require the removal of complex parts, making the operation convenient; the reserved space between the filter element and the air outlet ensures smooth ventilation, taking into account installation stability, replacement convenience and ventilation efficiency.

[0036] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A hoist type heat recovery fresh air machine comprising a casing, the side wall of the casing is provided with an outdoor air inlet and an outdoor air outlet, characterized in that: The casing is provided with a first insertion slot and a second insertion slot. The first insertion slot is located inside the outdoor air inlet and is connected to the outdoor air inlet. The second insertion slot is located inside the outdoor air outlet and is connected to the outdoor air outlet. A first filter element and a second filter element are respectively inserted into the first insertion slot and the second insertion slot. Outdoor fresh air enters the casing after passing through the outdoor air inlet and the first filter element. Indoor air inside the casing is discharged from the outdoor air outlet after passing through the second filter element.

2. The overhead heat recovery fresh air unit of claim 1, wherein: The housing includes a main housing and a base plate. The lower end of the main housing has an opening, and the base plate is installed at the lower end of the main housing and covers the opening of the main housing. The main housing has a first slot on the inner side of the outdoor air inlet. The base plate has a first through hole at a position corresponding to the first slot. The first through hole is aligned with the first slot, and the first through hole and the first slot form the first insertion groove.

3. The suspended heat recovery fresh air unit according to claim 2, characterized in that: A first baffle is provided inside the first through hole, and the first baffle seals the first through hole and blocks the lower side of the first filter element.

4. The suspended heat recovery fresh air unit according to claim 3, characterized in that: The base plate is provided with at least two first clearance grooves, which are located on both sides of the first through hole and are connected to the first through hole; the first baffle is provided with first grooves on both sides and at positions corresponding to the two first clearance grooves.

5. The suspended heat recovery fresh air unit according to claim 2, characterized in that: The inner wall of the main housing is provided with a first protrusion on both sides of the outdoor air inlet. Each of the two first protrusions is provided with a first embedding groove. The two first embedding grooves and the inner wall of the main housing form a first slot. There is space between the outdoor air inlet and the first filter element embedded in the first slot.

6. The suspended heat recovery fresh air unit according to claim 2, characterized in that: The main housing is provided with a second slot on the inner side of the outdoor exhaust vent. A second through hole is provided on the bottom plate at a position corresponding to the second slot. The second through hole is aligned with the second slot, and the second through hole and the second slot form the second insertion groove.

7. The suspended heat recovery fresh air unit according to claim 6, characterized in that: The second through hole is provided with a second baffle, which seals the second through hole and blocks the lower side of the second filter element.

8. The suspended heat recovery fresh air unit according to claim 7, characterized in that: The base plate is provided with at least two second clearance grooves, which are located on both sides of the second through hole and are connected to the second through hole; the second baffle is provided with second grooves on both sides and at positions corresponding to the two second clearance grooves.

9. The suspended heat recovery fresh air unit according to claim 6, characterized in that: The inner wall of the main housing is provided with a second protrusion on both sides of the outdoor exhaust vent. Each of the two second protrusions is provided with a second embedding groove. The two second embedding grooves and the inner wall of the main housing form a second slot. There is space between the outdoor exhaust vent and the second filter element embedded in the second slot.

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