Valve inner sliding block switching structure of multi-way valve device

Abstract

This invention provides an internal slider switching structure for a multi-way valve device, disposed within the valve body. The valve body contains a switching component for switching the flow direction of multiple channels. The switching component includes a slider and a driver. The slider is rotatably disposed within the valve body, and the driver drives the slider to rotate. The slider's cross-section does not completely cover the housing; the missing portion is an external notch. A recessed fan-shaped opening is formed on the bottom of the slider opposite to the external notch. The fan-shaped opening and the external notch correspond to the inlet and outlet channels, respectively. The external notch and the fan-shaped opening can simultaneously connect to one or two C and E channels. This invention can be matched with an air conditioning heat pump system equipped with two outdoor heat exchangers and two indoor heat exchangers. It can switch operating conditions according to different working environments. The two outdoor heat exchangers and two indoor heat exchangers can work alternately or simultaneously, enabling defrosting without shutting down the system and mutual compensation to achieve optimal power matching and energy-saving effects.

Description

Technical Field

[0001] This invention relates to the field of valve body technology, specifically to an internal slider switching structure for a multi-way valve device. Background Technology

[0002] Currently, mainstream heat pump air conditioners, water heaters and other systems on the market use four-way reversing valves to switch the refrigerant flow path in the system, thereby realizing the cooling, heating and defrosting functions of the entire system.

[0003] Taking air conditioners as an example, the existing four-way valve connects the indoor heat exchanger to the C-connector and the outdoor heat exchanger to the E-connector. When the system is running, the variable frequency compressor and electronic expansion valve match the heat exchanger and environmental conditions to adjust the operating status and achieve rapid temperature (heating).

[0004] The traditional four-way valve has the following shortcomings: the C-connector of the four-way valve is connected to the indoor heat exchanger and the E-connector is connected to the outdoor heat exchanger. The four-way valve only has two switching states: cooling and heating. The operating mode is relatively limited and cannot be adjusted to the optimal operating condition according to a specific environment. Therefore, it is not good in terms of energy saving or comfort.

[0005] The ideal solution is to add a C-connector and an E-connector to the four-way valve. However, how to switch between the various C-connectors and E-connectors is the problem that needs to be solved in this case. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an internal slider switching structure for a multi-way valve device, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sliding block switching structure for a multi-way valve device, disposed within a valve body, wherein a switching component for switching the flow direction of multiple channels is provided within the valve body, the switching component comprising a sliding block and a driver, the sliding block being rotatably disposed within the valve body, the driver being used to drive the sliding block to rotate, the cross-section of the sliding block not completely covering the housing, the missing portion being an external notch, a sunken fan-shaped opening being provided on the bottom of the sliding block on the side opposite to the external notch, the fan-shaped opening covering the center position of the bottom of the valve body, the fan-shaped opening and the external notch respectively corresponding to the inlet and outlet channels, the external notch and the fan-shaped opening being able to simultaneously connect one or two C channels and E channels.

[0008] It also includes channels D, S, C1, C2, E1, and E2, all of which are connected to the valve body. Channels D and S are inlet and outlet channels for connecting the valve body to an external carrier.

[0009] The valve body includes a housing and upper and lower valve seats at the upper and lower ends of the closed housing.

[0010] The D channel is connected to the side of the housing, the S channel is connected to the bottom center of the lower valve seat, the fan-shaped opening covers the S channel, and the C1, C2, E1, and E2 channels are located at the bottom of the lower valve seat and are distributed at an angle around the S channel.

[0011] The C1 and C2 channels, and the E1 and E2 channels are symmetrically arranged on both sides of the S channel, with each of the C1 and C2 channels and the E1 and E2 channels spaced 60° apart.

[0012] The slider has a stop piece on its side that can block the D channel.

[0013] The D channel, S channel, C1 channel, C2 channel, E1 channel, and E2 channel are pipes or flow channels.

[0014] This invention provides an internal slider switching structure for a multi-way valve device. It offers the following advantages: 1. The multi-way valve device has an internal slider switching structure. The slider switching structure can connect one or two C channels and E channels between the D channel and the S channel to realize six different fluid flow modes, and can switch working conditions according to different working environments.

[0015] 2. The internal slider switching structure of this multi-way valve device has a sunken fan-shaped opening on the slider that covers the center of the valve body. No matter how the slider rotates, the fan-shaped opening can always connect to the S channel, thereby achieving pressure balance between the drive part and the low-pressure S outlet end, reducing the drive capability. This enables low-power, fast drive switching with different pressure differentials and reduces noise. Attached Figure Description

[0016] Figure 1 This is a vertical axonometric drawing of the present invention; Figure 2 This is a planar isometric view of the present invention; Figure 3 This is a front sectional view of the present invention; Figure 4 This is a top sectional view of the present invention; Figure 5 This is a schematic diagram of the slider structure of the present invention; Figure 6 This is a diagram showing the slider position under one working condition according to the present invention. Figure 7 This is a diagram showing the slider position under operating condition two of the present invention; Figure 8 This is a diagram showing the slider position under three working conditions according to the present invention; Figure 9 This is a diagram showing the slider position state under four working conditions according to the present invention; Figure 10 This is a diagram showing the slider position under condition five of the present invention. Figure 11 This is a diagram showing the slider position under condition six of the present invention.

[0017] In the diagram: 1. Housing, 2. Lower valve seat, 3. D channel, 4. S channel, 5. C1 channel, 6. C2 channel, 7. E1 channel, 8. E2 channel, 9. Slider, 10. Upper valve seat, 11. Stepper motor, 12. Main spindle, 13. Bushing, 91. Slider body, 92. External notch, 93. Fan-shaped opening, 94. Stop plate. Detailed Implementation

[0018] This invention provides an internal slider switching structure for a multi-way valve device, such as... Figure 1-11 As shown, the multi-way valve device, housed within the valve body, also includes D channel 3, S channel 4, C1 channel 5, C2 channel 6, E1 channel 7, and E2 channel 8. D channel 3, S channel 4, C1 channel 5, C2 channel 6, E1 channel 7, and E2 channel 8 are all connected to the valve body.

[0019] Channels D3 and S4 are inlet and outlet channels connecting the valve body to an external carrier. A switching assembly is installed inside the valve body to switch the flow direction of channels C15, C26, E17, and E28.

[0020] The switching assembly includes a slider 9 and a driver. The slider 9 is rotatably mounted within the valve body, and the driver drives the slider 9 to rotate. The slider 9's cross-section does not completely cover the housing; the missing portion is an outer notch 92. The chamber between the outer notch 92 and the housing 1 is the outer chamber. A recessed fan-shaped opening 93 is provided on the bottom of the slider 9, opposite to the outer notch 92. The chamber within the fan-shaped opening 93 is the inner chamber. The fan-shaped opening 93 covers the center of the bottom of the valve body. The fan-shaped opening 93 and the outer notch 92 correspond to the inlet and outlet channels, respectively. The outer notch 92 and the fan-shaped opening 93 can simultaneously connect one or two C and E channels. Figure 6 As shown, the fan-shaped opening 93 only passes through one E1 channel 7. (As...) Figure 7 As shown, the fan-shaped opening 93 simultaneously connects E1 channel 7 and E2 channel 8.

[0021] Taking an air conditioning heat pump system as an example, channel D3 is used to connect to the compressor exhaust port, and channel S4 is used to connect to the compressor return port. This air conditioner has two outdoor heat exchangers and two indoor heat exchangers. Channels C15 and C26 are connected to the inlets of the two outdoor heat exchangers, respectively, and channels E17 and E28 are connected to the outlets of the two indoor heat exchangers, respectively. The piping between the two outdoor heat exchangers and the two indoor heat exchangers is controlled in parallel via expansion valves.

[0022] The valve body includes a circular housing 1 and upper valve seats 10 and lower valve seats 2 at the upper and lower ends of the closed housing 1. A chamber is formed between the upper valve seats 10 and the lower valve seats 2.

[0023] like Figure 3 As shown, channel D 3 connects to the side of housing 1 and communicates with the internal chamber. Channel S 4 connects to the bottom center of lower valve seat 2 and communicates with the internal chamber. Fan-shaped opening 93 always extends through channel S 4. Channels C1 5, C2 6, E1 7, and E2 8 are located at the bottom of lower valve seat 2 and are distributed at an angle around channel S 4.

[0024] By setting an upward-facing fan-shaped opening 93 on the slider 9 that covers the center of the valve body, the fan-shaped opening 93 can connect to the S channel 4 no matter how the slider 9 rotates, thereby achieving pressure balance between the drive section and the low-pressure S outlet end, reducing the drive capability, enabling low-power rapid drive switching at different pressure differentials and reducing noise.

[0025] like Figure 4 As shown, channels C1 5 and C2 6, and channels E1 7 and E2 8 are symmetrically arranged on both sides of channel S 4. Channels C1 5 and C2 6 are spaced 60° apart, and channels E1 7 and E2 8 are spaced 60° apart. Channels C1 5 and E2 8 are spaced 120° apart, and channels C2 6 and E1 7 are spaced 120° apart.

[0026] The side of the slider 9 is provided with a stop plate 94 that can block the D channel 3. When the slider 9 drives the stop plate 94 to rotate to the position of blocking the D channel 3, the fluid in the D channel 3 cannot enter the chamber.

[0027] Channels D (3), S (4), C1 (5), C2 (6), E1 (7), and E2 (8) are pipes or flow channels. In this embodiment, pipes are used, but it is not limited to integrating the above channels into the carrier in the form of flow channels.

[0028] A balance chamber is formed between the slider 9 and the upper valve seat 10 through a sealing assembly. The cross-sectional area of ​​the balance chamber is S1. A balance hole is opened on the slider 9 that always connects the S-channel 4 and the balance chamber.

[0029] Working principle: This multi-way valve, when paired with two outdoor heat exchangers and two indoor heat exchangers, offers six operating conditions: Operating condition one, such as Figure 6 As shown, the fluid flow path is: compressor → D channel 3 → C1 channel 5 → outdoor heat exchanger 1 → expansion valve → indoor heat exchanger 1 → E1 channel 7 → S channel 4 → compressor.

[0030] Operating condition two, such as Figure 7As shown, the fluid flow path is: compressor → D channel 3 → C1 channel 5, C2 channel 6 → outdoor heat exchanger 1, outdoor heat exchanger 2 → expansion valve → indoor heat exchanger 1, indoor heat exchanger 2 → E1 channel 7, E2 channel 8 → S channel 4 → compressor.

[0031] Operating condition three, such as Figure 8 As shown, the fluid flow path is: compressor → D channel 3 → C2 channel 6 → outdoor heat exchanger 2 → expansion valve → indoor heat exchanger 2 → E2 channel 8 → S channel 4 → compressor.

[0032] Operating condition four, such as Figure 9 As shown, the fluid flow path is: compressor → S channel 4 → E2 channel 8 → indoor heat exchanger 2 → expansion valve → outdoor heat exchanger 2 → C2 channel 6 → D channel 3 → compressor.

[0033] Operating condition five, such as Figure 10 As shown, the fluid flow path is: compressor → S channel 4 → E1 channel 7, E2 channel 8 → indoor heat exchanger 1, indoor heat exchanger 2 → expansion valve → outdoor heat exchanger 1, outdoor heat exchanger 2 → C1 channel 5, C2 channel 6 → D channel 3 → compressor.

[0034] Operating condition six, such as Figure 11 As shown, the fluid flow path is: compressor → S channel 4 → E1 channel 7 → indoor heat exchanger 1 → expansion valve → outdoor heat exchanger 1 → C1 channel 5 → D channel 3 → compressor.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sliding block switching structure inside a multi-way valve device, disposed within the valve body, characterized in that: The valve body is provided with a switching component for switching the flow direction of multiple channels. The switching component includes a slider (9) and a driver. The slider (9) is rotatably disposed in the valve body. The driver is used to drive the slider (9) to rotate. The cross section of the slider (9) does not completely cover the shell. The missing part is an outer notch (92). The bottom of the slider (9) is provided with a sunken fan-shaped opening (93) on the side opposite to the outer notch (92). The fan-shaped opening (93) covers the center position of the bottom of the valve body. The fan-shaped opening (93) and the outer notch (92) correspond to the inlet and outlet channels respectively. The outer notch (92) and the fan-shaped opening (93) can simultaneously pass through one or two C channels and E channels.

2. The internal slider switching structure of a multi-way valve device according to claim 1, characterized in that: It also includes D channel (3), S channel (4), C1 channel (5), C2 channel (6), E1 channel (7), and E2 channel (8). The D channel (3), S channel (4), C1 channel (5), C2 channel (6), E1 channel (7), and E2 channel (8) are all connected to the valve body. The D channel (3) and S channel (4) are the inlet and outlet channels of the valve body connecting to the external carrier.

3. The internal slider switching structure of a multi-way valve device according to claim 2, characterized in that: The valve body includes a housing (1) and upper valve seat (10) and lower valve seat (2) at the upper and lower ends of the closed housing (1).

4. The internal slider switching structure of a multi-way valve device according to claim 3, characterized in that: The D channel (3) is connected to the side of the housing (1), the S channel (4) is connected to the bottom center of the lower valve seat (2), the fan-shaped opening (93) covers the S channel (4), and the C1 channel (5), C2 channel (6), E1 channel (7), and E2 channel (8) are located at the bottom of the lower valve seat (2) and are distributed at an angle around the S channel (4).

5. The internal slider switching structure of a multi-way valve device according to claim 4, characterized in that: The C1 channel (5) and C2 channel (6), and the E1 channel (7) and E2 channel (8) are symmetrically arranged on both sides of the S channel (4), and the C1 channel (5) and C2 channel (6), and the E1 channel (7) and E2 channel (8) are all spaced 60° apart.

6. The internal slider switching structure of a multi-way valve device according to claim 1, characterized in that: The slider (9) is provided with a stop piece (94) on its side that can block the D channel (3).

7. The internal slider switching structure of a multi-way valve device according to claim 1, characterized in that: The D channel (3), S channel (4), C1 channel (5), C2 channel (6), E1 channel (7), and E2 channel (8) are pipes or flow channels.

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