Air conditioner valve regulating device

Abstract

The utility model relates to air conditioner accessory technical field discloses an air conditioner valve regulating device, including valve shell, the both ends of valve shell are provided with first interface, the communicating pipe, the lateral wall is provided with second interface, third interface, the valve core is slidably arranged in the valve shell, and the valve core divides the valve shell into three air pressure areas of upper portion, middle part, lower part, when the pressure intensity of upper portion air pressure area is greater than lower portion air pressure area, first interface and second interface are conducted, when the pressure intensity of upper portion air pressure area is less than lower portion air pressure area, third interface and second interface are conducted. The utility model can greatly reduce the flow distance of airflow, and reduce the heat exchange between the airflow in evaporimeter connecting pipe and the airflow at compressor exhaust pipe, four-way valve body, reduce energy loss, upgrade optimization makes the whole structure more simple, and the reliability is higher, and the failure rate is lower after long time use, when part of parts are ageing and damage, only need to dismount and replace the device, and the maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning accessories technology, specifically, an air conditioning valve regulating device. Background Technology

[0002] A four-way valve allows an air conditioner to easily switch between cooling and heating functions by changing the flow direction of the refrigerant. However, in existing air conditioning four-way valves, the refrigerant exchanges heat with the valve body and connecting pipes during its flow, resulting in energy loss. For example, in heating mode, the high-temperature, high-pressure refrigerant discharged from the compressor exchanges heat through the four-way valve and connecting pipes, causing its temperature to drop and ultimately reducing the heating capacity. Conversely, in cooling mode, the low-temperature, low-pressure refrigerant discharged from the evaporator exchanges heat through the four-way valve and connecting pipes, causing its temperature to rise and ultimately reducing the cooling capacity.

[0003] To address the aforementioned problems, existing technologies have proposed various technical solutions. For example, patent application number "CN202320675848.9" proposes installing an insulated inner tube inside the fluid pipeline to form a vacuum insulation cavity between the fluid pipeline and the insulated inner tube. This vacuum insulation cavity reduces heat exchange during fluid flow in the pipeline, thereby reducing energy loss. However, its overall manufacturing cost is high, and the insulation effect is not significant. Other solutions involve more complex overall structures, making subsequent maintenance extremely inconvenient and resulting in lower reliability. Utility Model Content

[0004] The purpose of this utility model is to provide an air conditioning valve adjustment device that solves the problems of poor heat insulation effect, complex structure and low reliability of the existing technology.

[0005] This utility model is achieved through the following technical solution: an air conditioning valve regulating device includes a valve shell, with a first interface and a connecting pipe respectively provided at both ends of the valve shell; a second interface and a third interface are provided on the side wall; a valve core is slidably disposed inside the valve shell, the valve core dividing the valve shell into three pressure regions: upper, middle, and lower. The valve core corresponds to the middle pressure region, the space between the valve core and the first interface corresponds to the upper pressure region, and the space between the valve core and the connecting pipe corresponds to the lower pressure region. The second and third interfaces are both located in the middle pressure region. The valve core is used to regulate the air path. When the pressure in the upper pressure region is greater than that in the lower pressure region, the first interface and the second interface are connected; when the pressure in the upper pressure region is less than that in the lower pressure region, the third interface and the second interface are connected.

[0006] To better realize this utility model, the valve core further includes an upper sliding plate, a connecting rod, and a lower sliding plate. The upper sliding plate is installed at the end of the connecting rod near the first interface, and the lower sliding plate is installed at the end of the connecting rod near the connecting pipe. The second interface and the third interface are located between the upper and lower sliding plates. The upper and lower sliding plates are slidably connected to the valve housing. The valve core also includes a first valve group disposed on the connecting rod and a second valve group installed on the upper sliding plate. When the pressure in the upper air pressure region is greater than that in the lower air pressure region, the second valve group is opened and the first valve group is closed. At this time, the second interface is connected to the first interface through the second valve group. When the pressure in the upper air pressure region is less than that in the lower air pressure region, the second valve group is closed and the first valve group is opened. At this time, the second interface is connected to the third interface through the first valve group.

[0007] To better realize this utility model, the first valve group further includes a sealing plate and a sealing plate seat. The sealing plate is mounted on the connecting rod, and the sealing plate seat is mounted on the valve body. The sealing plate and the sealing plate seat are in contact. The sealing plate is provided with a vent hole, and the sealing plate seat is provided with a connecting air passage. The connecting air passage is connected to the third interface.

[0008] To better realize this utility model, the second valve assembly further includes an extension tube, an extension rod, a sealing plate, and a one-way guide; the extension tube is connected to the first interface, the end of the extension tube is provided with a fitting and retaining part, the sealing plate is provided at the end of the extension rod and cooperates with the extension tube, the extension rod is installed on the upper slide plate, the upper slide plate is provided with a one-way air hole, and the one-way guide is provided at the end of the upper slide plate opposite to the extension rod.

[0009] To better realize this utility model, the unidirectional guide includes a metal foil with a slot, and the metal foil is coaxially attached to the upper slide plate.

[0010] To better realize this utility model, the fitting and retaining part is further defined as a guide cylinder, and the sealing piece slides on the connecting air passage and the guide cylinder.

[0011] To better realize this utility model, the fitting and retaining part guides the horn, and the sealing piece slides only on the connecting air passage.

[0012] To better realize this utility model, the valve housing further includes a first valve housing unit and a second valve housing unit, wherein the first valve housing unit and the second valve housing unit are welded together and the weld is sealed.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0014] (1) This utility model sets up a valve shell with a first interface, a second interface and a third interface, and uses it in conjunction with a four-way valve; when the high-pressure gas discharged from the compressor exhaust pipe flows out through the condenser connecting pipe, the gas in the evaporator connecting pipe will not flow into the four-way valve, but will flow directly through this device to the compressor return pipe, which greatly reduces the flow path of the airflow and reduces the heat exchange between the airflow in the evaporator connecting pipe and the airflow at the compressor exhaust pipe and the four-way valve body, thus reducing energy loss;

[0015] (2) The overall structure of this utility model is simpler and more reliable through upgrades and optimizations, and the failure rate is lower after long-term use. When some parts are aged and damaged, the device can be disassembled and replaced, making maintenance convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 Schematic diagram of valve core structure Figure 1 .

[0019] Figure 4 Schematic diagram of valve core structure Figure 2 .

[0020] Figure 5 This is a schematic diagram of the structure of a metal foil sheet.

[0021] Figure 6 This is a schematic diagram of the sealing plate structure.

[0022] Figure 7 This is a schematic diagram of a guide cylinder structure.

[0023] Figure 8 This is a schematic diagram of the guide horn structure.

[0024] Figure 9 This is a schematic diagram showing the valve plate of a typical four-way air conditioner valve in the left-hand position.

[0025] Figure 10 This is a schematic diagram of the connection structure between this utility model and the four-way valve of an air conditioner. Figure 1 .

[0026] Figure 11 This is a schematic diagram showing the valve plate of a typical four-way air conditioner valve in the right-hand position.

[0027] Figure 12 This is a schematic diagram of the connection structure between this utility model and the four-way valve of an air conditioner. Figure 2 .

[0028] Wherein: 11-First interface; 12-Second interface; 13-Third interface; 200-Compressor exhaust pipe; 300-Evaporator connecting pipe; 400-Compressor return pipe; 500-Condenser connecting pipe; 101-First valve housing unit; 102-Second valve housing unit; 103-Extension pipe; 104-Upper slide plate; 105-Connecting rod; 106-Sealing plate; 107-Sealing plate seat; 108-Lower slide plate; 109-Connecting pipe; 110-Extension rod; 111-Sealing piece; 112-One-way vent; 113-Connecting air passage; 114-Metal foil; 115-Slot; 116-Guide vent; 117-Guide cylinder; 118-Guide bell. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example 1:

[0032] This embodiment provides an air conditioning valve regulating device, specifically as follows: Figures 1-2 As shown, the device includes a valve housing with a first interface 11 and a connecting pipe 109 at both ends; a second interface 12 and a third interface 13 are provided on the side wall; a valve core is slidably disposed inside the valve housing, dividing the valve housing into three pressure zones: upper, middle, and lower. The valve core corresponds to the middle pressure zone, the space between the valve core and the first interface 11 corresponds to the upper pressure zone, and the space between the valve core and the connecting pipe 109 corresponds to the lower pressure zone. The second interface 12 and the third interface 13 are both located in the middle pressure zone. The valve core is used to regulate the airflow. When the pressure in the upper pressure zone is greater than that in the lower pressure zone, the first interface 11 and the second interface 12 are connected; when the pressure in the upper pressure zone is less than that in the lower pressure zone, the third interface 13 and the second interface 12 are connected.

[0033] like Figure 9 As shown, when this device is not in use: the valve plate inside the air conditioner four-way valve is located on the left side. At this time, the evaporator connecting pipe 300 is connected to the compressor return pipe 400, and the compressor discharge pipe 200 is connected to the condenser connecting pipe 500. At this time, the high-pressure gas discharged from the compressor discharge pipe 200 flows out through the condenser connecting pipe 500, while the low-pressure gas from the evaporator connecting pipe 300 enters the four-way valve and flows back through the compressor return pipe 400.

[0034] like Figure 10 As shown, the device is installed between the evaporator connecting pipe 300 and the compressor return pipe 400, such that the first interface 11 is connected to the four-way valve, the second interface 12 is connected to the evaporator connecting pipe 300, the third interface 13 is connected to the compressor return pipe 400, and the connecting pipe 109 is connected to the condenser connecting pipe 500. At this time, the valve plate inside the air conditioner four-way valve is located on the left side. At this time, the high-pressure gas discharged from the compressor exhaust pipe 200 flows out through the condenser connecting pipe 500. Due to the high pressure at the condenser connecting pipe 500, a small amount of airflow flows into the lower pressure area through the connecting pipe 109, which increases the pressure in the lower pressure area. This causes the second interface 12 and the third interface 13 to be connected. At this time, the low-pressure gas from the evaporator connecting pipe 300 enters the middle pressure area through the second interface 12, and then flows to the compressor return pipe 400 through the third interface 13, and then completes the return flow through the compressor return pipe 400. That is, the gas in the evaporator connecting pipe 300 will not flow into the four-way valve, but will flow directly to the compressor return pipe 400 through this device, which greatly reduces the flow path of the airflow and reduces the heat exchange between the airflow in the evaporator connecting pipe 300 and the airflow at the compressor exhaust pipe 200 and the four-way valve body, thus reducing energy loss.

[0035] like Figure 11 As shown, when this device is not in use, the valve plate inside the four-way valve of the air conditioner is located on the right side. At this time, the compressor exhaust pipe 200 is connected to the evaporator connecting pipe 300, and the compressor return pipe 400 is connected to the condenser connecting pipe 500. At this time, the high-pressure gas discharged from the compressor exhaust pipe 200 flows into the evaporator connecting pipe 300.

[0036] like Figure 12 As shown, after using this device, the valve plate inside the four-way valve of the air conditioner is located on the right side. At this time, the compressor exhaust pipe 200 is connected to the first interface 11, the evaporator connecting pipe 300 is connected to the second interface 12, and the compressor return pipe 400 is connected to the third interface 13, but the second interface 12 and the third interface 13 are not connected at this time. At this time, due to the high pressure at the first interface 11, the pressure in the upper air pressure area increases, which in turn makes the second interface 12 connected to the first interface 11. At this time, the high-pressure gas from the compressor exhaust pipe 200 enters the first interface 11 and then flows to the evaporator connecting pipe 300 through the second interface 12.

[0037] Example 2:

[0038] This embodiment further expands upon the above embodiment in terms of the valve core, specifically as follows: Figures 2-4 As shown, the valve core includes an upper slide plate 104, a connecting rod 105, and a lower slide plate 108. The upper slide plate 104 is installed at the end of the connecting rod 105 near the first interface 11, and the lower slide plate 108 is installed at the end of the connecting rod 105 near the connecting pipe 109. The second interface 12 and the third interface 13 are located between the upper slide plate 104 and the lower slide plate 108. Both the upper slide plate 104 and the lower slide plate 108 are slidably connected to the valve housing. The valve core also includes a first valve group disposed on the connecting rod 105 and a second valve group installed on the upper slide plate 104. When the pressure in the upper air pressure region is greater than that in the lower air pressure region, the second valve group is opened and the first valve group is closed. At this time, the second interface 12 is connected to the first interface 11 through the second valve group. When the pressure in the upper air pressure region is less than that in the lower air pressure region, the second valve group is closed and the first valve group is opened. At this time, the second interface 12 is connected to the third interface 13 through the first valve group.

[0039] The upper slide plate 104 and the lower slide plate 108 act as pistons to block the flow. The opening and closing states of the first valve group and the second valve group are used to change the airflow path. The opening and closing states of the first valve group and the second valve group change automatically with the pressure, without the need for additional driving force.

[0040] The valve housing includes a first valve housing unit 101 and a second valve housing unit 102. The first valve housing unit 101 and the second valve housing unit 102 are welded together, and the weld is sealed. The split valve housing facilitates the assembly of the valve core, and the welded seal after assembly ensures airtightness and prevents air leakage.

[0041] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0042] Example 3:

[0043] This embodiment further expands upon the first valve group based on the above embodiment, specifically as follows: Figure 3 , Figure 4 , Figure 6 As shown, the first valve assembly includes a sealing plate 106 and a sealing plate seat 107. The sealing plate 106 is mounted on the connecting rod 105, and the sealing plate seat 107 is mounted on the valve body. The sealing plate 106 and the sealing plate seat 107 are in contact. The sealing plate 106 is provided with a vent hole 116, and the sealing plate seat 107 is provided with a connecting air passage 113. The connecting air passage 113 is connected to the third interface 13.

[0044] When the pressure in the lower air pressure area is high, the valve core moves upward, and the vent 116 connects with the connecting air passage 113, so the second port 12 will connect with the third port 13; when the pressure in the lower air pressure area is low, the valve core moves downward, and the sealing plate 106 will block the connecting air passage 113, so the second port 12 and the third port 13 will not connect.

[0045] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0046] Example 4:

[0047] This embodiment further expands upon the above embodiment by modifying the second valve assembly, specifically as follows: Figure 3 , Figure 4 As shown, the second valve assembly includes an extension tube 103, an extension rod 110, a sealing plate 111, and a one-way guide member; the extension tube 103 is connected to the first interface 11, and the end of the extension tube 103 is provided with a fitting and retaining part; the sealing plate 111 is disposed at the end of the extension rod 110 and cooperates with the extension tube 103; the extension rod 110 is mounted on the upper slide plate 104; the upper slide plate 104 is provided with a one-way air hole 112; and the one-way guide member is disposed on the upper slide plate 104 at the end opposite to the extension rod 110.

[0048] When the high-pressure airflow in the compressor exhaust pipe 200 flows into the first interface 11 and then into the extension pipe 103, the valve core moves down under pressure because the sealing plate 111 is blocked in the extension pipe 103 until the sealing plate 111 is in the fitting and holding part. At this time, the airflow in the extension pipe 103 flows from the fitting and holding part to the upper pressure area, and then flows into the middle pressure area through the one-way air hole 112 and the one-way guide. Since the sealing plate 106 blocks the connecting air passage 113 at this time, the airflow will flow from the second interface 12 to the evaporator connecting pipe 300.

[0049] When the high-pressure airflow at the connecting pipe 109 flows into the lower air pressure area, the valve core moves upward, and the sealing piece 111 is inserted into the extension pipe 103 from the fitting and retaining part to re-seal the extension pipe 103.

[0050] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0051] Example 5:

[0052] This embodiment further expands upon the unidirectional conduction component based on Embodiment 4, specifically as follows: Figure 5 As shown, the unidirectional guide includes a metal foil 114, on which a slot 115 is provided, and the metal foil 114 is coaxially attached to the upper slide plate 104.

[0053] The slot 115 allows the metal foil 114 to easily deform. When airflow flows from the one-way vent 112 to the metal foil 114, the metal foil 114 deforms because it is unsupported. The airflow flows from the gap between the metal foil 114 and the upper slide plate 104 to the middle pressure region. When the airflow in the middle pressure region wants to flow to the upper pressure region, the upper slide plate 104 supports the metal foil 114, so the airflow cannot flow to the upper pressure region through the one-way vent 112.

[0054] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0055] Example 6:

[0056] This embodiment further expands the fitting and retaining portion based on embodiment 4, specifically as follows: Figure 7 As shown, the fitting and retaining part is a guide cylinder 117, and the sealing piece 111 slides on the connecting air passage 113 and the guide cylinder 117.

[0057] The guide tube 117 has the same overall diameter as the extension tube 103, except that the side wall is slotted. When the sealing piece 111 moves to the guide tube 117, the airflow will flow from the slot. The extension tube 103 will not slide out of the guide tube 117, that is, the guide tube 117 can ensure that the sealing piece 111 will slide into the extension tube 103 when it moves upward.

[0058] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0059] Example 7:

[0060] This embodiment further expands the fitting and retaining portion based on embodiment 4, specifically as follows: Figure 8 As shown, the fitting and retaining part guides the horn tube 118, and the sealing piece 111 slides only on the connecting air passage 113.

[0061] The guide horn 118 is horn-shaped. When the sealing plate 111 moves to the guide horn 118, the airflow will flow through the gap between the sealing plate 111 and the sliding plate 108. The extension tube 103 will not slide out of the guide horn 118, that is, the guide horn 118 can ensure that the sealing plate 111 will slide into the extension tube 103 when it moves upward.

[0062] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0063] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An air conditioning valve regulating device, comprising a valve housing, characterized in that: The valve housing is provided with a first interface (11) and a connecting pipe (109) at both ends; a second interface (12) and a third interface (13) are provided on the side wall; a valve core is slidably disposed inside the valve housing, and the valve core divides the valve housing into three air pressure regions: upper, middle and lower. The valve core corresponds to the middle air pressure region, the valve core and the first interface (11) correspond to the upper air pressure region, and the valve core and the connecting pipe (109) correspond to the lower air pressure region. The second interface (12) and the third interface (13) are both located in the middle air pressure region; the valve core is used to regulate the air path. When the pressure in the upper air pressure region is greater than that in the lower air pressure region, the first interface (11) and the second interface (12) are connected; when the pressure in the upper air pressure region is less than that in the lower air pressure region, the third interface (13) and the second interface (12) are connected.

2. The air conditioning valve regulating device according to claim 1, characterized in that: The valve core includes an upper sliding plate (104), a connecting rod (105), and a lower sliding plate (108). The upper sliding plate (104) is installed at the end of the connecting rod (105) near the first interface (11), and the lower sliding plate (108) is installed at the end of the connecting rod (105) near the connecting pipe (109). The second interface (12) and the third interface (13) are located between the upper sliding plate (104) and the lower sliding plate (108). The upper sliding plate (104) and the lower sliding plate (108) are both slidably connected to the valve core. On the shell; the valve core also includes a first valve group disposed on the connecting rod (105) and a second valve group installed on the upper slide plate (104); when the pressure of the upper air pressure area is greater than that of the lower air pressure area, the second valve group is opened and the first valve group is closed, at which time the second interface (12) is connected to the first interface (11) through the second valve group; when the pressure of the upper air pressure area is less than that of the lower air pressure area, the second valve group is closed and the first valve group is opened, at which time the second interface (12) is connected to the third interface (13) through the first valve group.

3. The air conditioning valve regulating device according to claim 2, characterized in that: The first valve assembly includes a sealing plate (106) and a sealing plate seat (107). The sealing plate (106) is mounted on the connecting rod (105), and the sealing plate seat (107) is mounted on the valve body. The sealing plate (106) and the sealing plate seat (107) are in contact. The sealing plate (106) is provided with a vent hole (116), and the sealing plate seat (107) is provided with a connecting air passage (113). The connecting air passage (113) is connected to the third interface (13).

4. An air conditioning valve regulating device according to claim 3, characterized in that: The second valve assembly includes an extension tube (103), an extension rod (110), a sealing plate (111), and a one-way guide; the extension tube (103) is connected to the first interface (11), and the end of the extension tube (103) is provided with a fitting and retaining part. The sealing plate (111) is provided at the end of the extension rod (110) and cooperates with the extension tube (103). The extension rod (110) is mounted on the upper slide plate (104), and the upper slide plate (104) is provided with a one-way air hole (112). The one-way guide is provided on the upper slide plate (104) at one end opposite to the extension rod (110).

5. An air conditioning valve regulating device according to claim 4, characterized in that: The unidirectional guide includes a metal foil (114), on which a slot (115) is provided, and the metal foil (114) is coaxially attached to the upper slide plate (104).

6. An air conditioning valve regulating device according to claim 4, characterized in that: The fitting and retaining part is a guide cylinder (117), and the sealing piece (111) slides on the connecting air passage (113) and the guide cylinder (117).

7. An air conditioning valve regulating device according to claim 4, characterized in that: The fitting retainer guides the horn tube (118), and the sealing plate (111) slides only on the connecting air passage (113).

8. An air conditioning valve regulating device according to any one of claims 1-3, characterized in that: The valve housing includes a first valve housing unit (101) and a second valve housing unit (102), wherein the first valve housing unit (101) and the second valve housing unit (102) are welded together and the weld is sealed.

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