Pressure sensor and air conditioner having the same

Abstract

The utility model discloses a kind of pressure sensor and air conditioner with it, the pressure sensor includes: shell, the top of the shell has wire hole;Sensor body, the sensor body is located in the shell, and has connecting line, the connecting line part is from the wire hole and extends;Protective cover, the protective cover is located in the top of the shell, and at least cover the wire hole. According to the pressure sensor of the utility model embodiment, by setting protective cover, the connecting line and the top of shell are shaded rainwater and sunshade by protective cover, the influence of rainwater on connecting line, shell can be reduced, the degree of connecting line, shell etc. is reduced by sun exposure, it is convenient to improve the service life and safety of connecting line, it is convenient to improve the service life of pressure sensor.

Description

Technical Field

[0001] This utility model relates to the field of pressure sensor technology, and more specifically, to a pressure sensor and an air conditioner having the same. Background Technology

[0002] In related technologies, the outdoor unit of an air conditioner is equipped with a pressure sensor. The pressure sensor is used to detect pressure changes in the refrigerant pipeline in the air conditioner. However, the pressure sensor is in a harsh environment that is easily exposed to sun and rain, and the pressure sensor is prone to failure. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pressure sensor that, by setting a protective cover, shields the connecting wires and the top of the housing from rain and sun, reducing the impact of rain on the connecting wires and housing, and minimizing the degree of sun exposure on the connecting wires and housing, thereby improving the service life and safety of the connecting wires and the service life of the pressure sensor.

[0004] This utility model also proposes an air conditioner having the aforementioned pressure sensor.

[0005] A pressure sensor according to a first aspect of the present invention includes: a housing having a wire hole at its top; a sensor body disposed within the housing and having a connecting wire extending from the wire hole; and a protective cover disposed at the top of the housing and at least covering the wire hole.

[0006] According to the embodiment of the present invention, the pressure sensor is equipped with a protective cover. The protective cover protects the connecting wire and the top of the housing from rain and sun, which can reduce the impact of rain on the connecting wire and the housing, reduce the degree of sun exposure on the connecting wire and the housing, and facilitate the improvement of the service life and safety of the connecting wire, and thus improve the service life of the pressure sensor.

[0007] In addition, the pressure sensor according to the above embodiments of this utility model may also have the following additional technical features: According to some embodiments of the present invention, the pressure sensor further includes: a protective sleeve, which is disposed outside the housing and sleeved on the outside of the connecting line, and a protective cover is disposed on the protective sleeve.

[0008] According to some optional embodiments of the present invention, the protective cover and the protective sleeve are an integral piece.

[0009] According to some optional embodiments of the present invention, there are multiple wire holes and multiple connecting wires, and the positions of the multiple wire holes and multiple connecting wires correspond one-to-one; wherein, each connecting wire extends out from the wire hole at the corresponding position, the protective sleeve is sleeved on the outside of the multiple connecting wires, and the protective cover covers the multiple wire holes.

[0010] According to some embodiments of the present invention, the protective cover defines a downward-facing chamber, the chamber having a top wall and a peripheral wall, the peripheral wall being connected to the periphery of the top wall, and the top wall covering the wire hole.

[0011] According to some optional embodiments of the present invention, the peripheral wall gradually extends from top to bottom in a direction away from the wire hole.

[0012] According to some optional embodiments of the present invention, the top of the housing has an upwardly extending mounting protrusion, the wire hole is provided on the top wall of the mounting protrusion, and the mounting protrusion extends at least partially into the cavity.

[0013] According to some optional embodiments of the present invention, the lower end of the peripheral wall is connected to a baffle extending outward toward the cavity, and the baffle is connected to the peripheral wall in a circular arc transition.

[0014] According to some embodiments of the present invention, the sensor body has a wiring portion, and the connecting wire is connected to the wiring portion; wherein, a receiving cavity is defined between the sensor body and the inner surface of the housing, the receiving cavity is filled with an insulating encapsulation material, and the insulating encapsulation material covers the connection between the wiring portion and the connecting wire.

[0015] According to some optional embodiments of the present invention, the housing further has an interface, and the sensor body separates the interface from the receiving cavity; wherein, a sealing element is provided on the side of the sensor body facing the interface, and the sealing element seals the gap between the sensor body and the housing.

[0016] According to a second aspect of the present invention, an air conditioner is provided, the air conditioner including the pressure sensor described in the first aspect of the present invention.

[0017] According to the embodiments of the present invention, the air conditioner utilizes the pressure sensor described in the first aspect of the present invention. By setting a protective cover, the protective cover can shield the connecting wires and the top of the housing from rain and sun, thereby reducing the impact of rain on the connecting wires and the housing, reducing the degree of sun exposure on the connecting wires and the housing, and thus improving the service life and safety of the connecting wires and the service life of the pressure sensor.

[0018] According to some optional embodiments of the present invention, the air conditioner includes a compressor and a heat exchanger, the compressor and the heat exchanger are connected by a refrigerant pipeline, and the pressure sensor is used to detect the pressure in the refrigerant pipeline.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of a pressure sensor according to an embodiment of the present utility model, in which the protective cover is installed on the top of the housing; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a partial structural schematic diagram of a pressure sensor according to an embodiment of the present utility model; Figure 4 This is a structural cross-sectional view of a pressure sensor according to an embodiment of the present utility model; Figure 5 This is a top view of a pressure sensor according to an embodiment of the present invention.

[0021] Reference numerals: 1. Pressure sensor; 10. Housing; 101. First housing portion; 102. Second housing portion; 11. Wiring hole; 12. Mounting protrusion; 13. Receiving cavity; 14. Interface; 20. Sensor body; 201. Pressure-sensitive component; 202. Electronic control board; 21. Connecting wire; 22. Wiring section; 30. Protective cover; 311. Top wall; 312. Peripheral wall; 313. Edge retaining wall; 40. Protective sleeve; 45. First sealing ring; 46. Second sealing ring; 50. Connecting pipe. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] The pressure sensor 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0024] like Figures 1-3As shown, the pressure sensor 1 according to an embodiment of the present invention includes a housing 10, a sensor body 20, and a protective cover 30.

[0025] The top of the housing 10 has a wire hole 11, the sensor body 20 is disposed inside the housing 10, the sensor body 20 has a connecting wire 21, a portion of the connecting wire 21 extends out of the wire hole 11, and the portion of the connecting wire 21 extending out of the wire hole 11 is suitable for electrical connection with external parts.

[0026] Specifically, the sensor body 20 is used to measure the pressure at the bottom of the housing 10 and transmits the pressure signal to external components via the connecting line 21, thus transmitting the pressure data measured by the pressure sensor 1 to the external components. For example, when the pressure sensor 1 is applied in an air conditioner, it can monitor the key data of the refrigerant pressure in the refrigerant pipeline during refrigerant circulation by monitoring the gas pressure in the refrigerant pipeline in real time. This assists the air conditioning control system in adjusting the compressor frequency and expansion valve opening, enabling the air conditioning control system to more accurately adjust the compressor frequency and expansion valve opening. This allows the air conditioning system to maintain optimal operating efficiency under various operating conditions, such as different indoor and outdoor temperatures or different load changes, achieving rapid cooling or heating of the air conditioner and facilitating energy saving.

[0027] The protective cover 30 is located on the top of the housing 10. The protective cover 30 at least covers the wire hole 11. The protective cover 30 is used to cover the wire hole 11 and part of the connecting wire 21, so as to block rain and sun, so as to prevent rain and humid air from having too much contact with the connecting wire 21, thereby reducing the degree of sun exposure to the housing 10 and the connecting wire 21, thereby reducing the possibility of short circuit of the connecting wire 21 and slowing down the aging rate of the connecting wire 21.

[0028] Meanwhile, the design of the protective cover 30 can also prevent rainwater and humid air from entering the housing 10 through the wire hole 11, thus avoiding damage to the sensor body 20 or other components inside the housing 10.

[0029] Specifically, when the housing 10 and the connecting wire 21 are exposed to sunlight, they are prone to aging and the epoxy resin inside the housing 10 may age and fall off. By providing a protective cover 30, which at least covers the wire hole 11, the degree of sunlight exposure to the connecting wire 21 and the housing 10 can be reduced, thereby improving the service life of the pressure sensor 1.

[0030] According to the embodiment of the present invention, the pressure sensor 1 is provided with a protective cover 30, which protects the connecting wire 21 and the top of the housing 10 from rain and sun, reducing the impact of rain on the connecting wire 21 and the housing 10, and reducing the degree of sun exposure on the connecting wire 21 and the housing 10, thereby improving the service life and safety of the connecting wire 21 and the service life of the pressure sensor 1.

[0031] The pressure sensor 1 according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0032] In some specific embodiments of this utility model, such as Figures 1-3 As shown, the pressure sensor 1 includes a housing 10, a sensor body 20, and a protective cover 30.

[0033] In some embodiments of this utility model, such as Figure 1 As shown, the pressure sensor 1 also includes a protective sleeve 40, which is disposed outside the housing 10 and covers the outside of the connecting wire 21. A protective cover 30 is disposed on the protective sleeve 40. The protective cover 30 is used to shield the connecting wire 21 from rain and sun. The protection of the connecting wire 21 by the protective sleeve 40 includes insulation protection. The protective sleeve 40 can insulate the connecting wire 21 from external conductive parts, reducing the possibility of short circuit in the connecting wire 21. The protection of the connecting wire 21 by the protective sleeve 40 also includes physical protection to prevent external objects from scratching the connecting wire 21, thereby facilitating the long-term stable operation of the connecting wire 21.

[0034] Specifically, the protective cover 30 is located at the end of the protective sleeve 40 facing the housing 10, so as to protect the connecting wire 21 and the top of the housing 10 from rain and sun, thereby reducing the impact of rain on the connecting wire 21 and the housing 10, reducing the degree of sun exposure on the connecting wire 21 and the housing 10, and improving the service life and safety of the connecting wire 21, as well as the service life of the pressure sensor 1.

[0035] In some optional embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the protective cover 30 and the protective sleeve 40 are integrated into one piece. This allows the protective sleeve 40 to limit the position of the protective cover 30, enabling the protective cover 30 to be placed on the top of the housing 10 and cover the wire hole 11 on the top of the housing 10.

[0036] Furthermore, by making the protective cover 30 and the protective sleeve 40 a single unit, there is no need to set a connecting structure between the protective cover 30 and the protective sleeve 40, so that the protective cover 30 and the protective sleeve 40 have a stable connection relationship. This allows the protective cover 30 to stably shield the top of the housing 10 and the connecting line 21 extending out of the housing 10 from rain and sun, which helps to reduce the impact of rain on the connecting line 21 and the housing 10, and reduce the degree of sun exposure on the connecting line 21 and the housing 10.

[0037] In some optional embodiments of this utility model, such as Figure 4 , Figure 5 As shown, there are multiple wire holes 11 and multiple connecting wires 21. The positions of the multiple wire holes 11 and multiple connecting wires 21 correspond one-to-one. Each connecting wire 21 extends out of the corresponding wire hole 11. The protective sleeve 40 is fitted on the outside of the multiple connecting wires 21, and the protective cover 30 covers the multiple wire holes 11.

[0038] Specifically, a protective cover 30 can simultaneously cover multiple wire holes 11, thereby simultaneously shielding multiple wire holes 11 and multiple connecting wires 21 from rain and sun, reducing the possibility that rainwater and high humidity air will come into contact with multiple connecting wires 21, and reducing the possibility that rainwater and high humidity air will enter the housing 10 through multiple wire holes 11, which facilitates the improvement of the safety of use of the pressure sensor 1 and the improvement of the service life of the pressure sensor 1.

[0039] In some embodiments, such as Figure 4 As shown, there are three wire holes 11 and three connecting wires 21. Each connecting wire 21 extends from the corresponding wire hole 11. Two connecting wires 21 are used to power on the sensor body 20, and the other connecting wire 21 is used to transmit signals outward, so as to transmit the signals obtained by the sensor body 20 outward.

[0040] In some embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the protective cover 30 defines a downward-facing chamber, which has a top wall 311 and a peripheral wall 312. The peripheral wall 312 is connected to the periphery of the top wall 311, and the top wall 311 covers the wire hole 11.

[0041] Specifically, the top wall 311 is located above the wire hole 11, and the peripheral wall 312 is located around the wire hole 11. The top wall 311 and the peripheral wall 312 are adapted to surround the wire hole 11 to provide all-round protection for the wire hole 11. This can effectively reduce the possibility of rainwater and high humidity air coming into contact with the connecting wire 21, and effectively reduce the degree of exposure of the connecting wire 21 and the housing 10 to sunlight, so as to fully protect the connecting wire 21 and the housing 10.

[0042] In some specific embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the peripheral wall 312 gradually slopes and extends from top to bottom away from the wire hole 11. The peripheral wall 312 is adapted to guide the flow direction of rainwater so that when the rainwater flows down along the peripheral wall 312, the rainwater can flow away from the wire hole 11, preventing the rainwater from flowing towards the connecting wire 21 or the wire hole 11. This improves the protective effect of the protective cover 30 on the wire hole 11 and the connecting wire 21, reduces the possibility of rainwater and high humidity air coming into contact with the connecting wire 21, and reduces the possibility of rainwater and high humidity air entering the housing 10 through the wire hole 11.

[0043] In some specific embodiments of this utility model, such as Figure 1 As shown, the top of the housing 10 has an upwardly extending mounting protrusion 12, and a wire hole 11 is provided on the top wall 311 of the mounting protrusion 12. The mounting protrusion 12 extends at least partially into the cavity. In this way, while the protective cover 30 shields the wire hole 11 and the connecting wire 21 from rain and sun, it can also shield the mounting protrusion 12 on the top of the housing 10 from rain and sun. On the one hand, it can reduce the degree of sun exposure to the mounting protrusion 12, and on the other hand, it can significantly reduce the possibility that rainwater will enter the mounting protrusion 12 through the wire hole 11, thereby reducing the possibility of pressure sensor 1 failure.

[0044] Specifically, the wire hole 11 is located on the top of the mounting protrusion 12. Since the size of the mounting protrusion 12 can be designed to be much smaller than the size of the housing 10, it is easier to place the protective cover 30 on the mounting protrusion 12 than to place the protective cover 30 on the housing 10. This also makes it easier to design the size of the protective cover 30 to be smaller, which reduces the difficulty of the protective cover 30 blocking the wire hole 11 and improves the effect of the protective cover 30 in blocking rainwater and sun from the wire hole 11 and the connecting wire 21.

[0045] In some optional embodiments of this utility model, such as Figure 2 As shown, a baffle 313 is connected to the lower end of the peripheral wall 312. The baffle 313 extends outward from the cavity and is connected to the peripheral wall 312 by a rounded transition. The baffle 313 is used to guide the water flowing downward along the peripheral wall 312 away from the cavity, so as to prevent rainwater from contacting the connecting line 21 due to inertia when flowing downward along the peripheral wall 312, and to prevent rainwater from flowing to the wire hole 11, thereby improving the protection of the protective cover 30 for the connecting line 21 and the housing 10.

[0046] In some embodiments of this utility model, such as Figure 4As shown, the sensor body 20 has a wiring portion 22, and a connecting wire 21 is connected to the wiring portion 22. The sensor body 20 is adapted to achieve electrical connection with external parts through the wiring portion 22 and the connecting wire 21. Specifically, the connecting wire 21 is electrically connected to the external parts, and the connection between the connecting wire 21 and the wiring portion 22 enables the sensor body 20 to be powered on and to transmit signals.

[0047] The sensor body 20 and the inner surface of the housing 10 define a receiving cavity 13. The receiving cavity 13 is filled with insulating encapsulation material, which covers the connection between the wiring part 22 and the connecting wire 21. The insulating encapsulation material can fix the position of the wiring part 22 and the connecting wire 21, and can also provide insulation and physical protection for the wiring part 22 and the connecting wire 21.

[0048] Specifically, the sensor body 20 is used to detect the gas pressure in a designated area. The sensor body 20 is electrically connected to external parts via the connecting line 21. The signal acquired by the sensor body 20 is suitable for transmission to the outside through the wiring part 22 and the connecting line 21. The insulating encapsulation material is located inside the housing 10 and is used to wrap and fix the connecting line 21 and the wiring part 22.

[0049] It is understandable that there is adhesive force between the insulating encapsulation material and the inner wall of the housing 10, and there is adhesive force between the insulating encapsulation material and the wiring part 22 and the connecting wire 21. At the same time, the insulating encapsulation material separates the sensor body 20 and the wire hole 11, so that the sensor body 20 is in a sealed environment, preventing air from the environment from flowing to the sensor body 20, and preventing the pressure sensor 1 from measuring pressure inaccurately or even having no pressure output, thereby causing the pressure sensor 1 to fail.

[0050] When the pressure sensor 1 is exposed to sunlight for a long time, the adhesion between the insulating encapsulation material and the inner wall of the housing 10 will weaken, and the adhesion between the insulating encapsulation material and the connecting wire 21 will also weaken. This will cause the insulating material to fail to fully separate the sensor body 20 and the wire hole 11, thus failing to guarantee the working environment of the sensor body 20. This can easily cause moisture or air to enter the housing 10, resulting in inaccurate pressure measurement or even no pressure output from the pressure sensor 1, leading to the failure of the pressure sensor 1.

[0051] This invention, by setting a protective cover 30, covers the top of the housing 10 and shields the wire hole 11. This reduces the exposure of the wire hole 11 and the top of the housing 10 to sunlight, avoids the possibility of the insulating encapsulation material failing due to high temperature, reduces the possibility of the insulating encapsulation material coming into contact with water, and further reduces the possibility of the insulating encapsulation material detaching from the housing 10 and the connecting wire 21. This ensures that the insulating encapsulation material can fully separate the wire hole 11 and the sensor body 20, preventing water vapor or air from entering the housing 10, avoiding inaccurate pressure measurement or even no pressure output from the pressure sensor 1, and reducing the possibility of sensor body 20 failing.

[0052] In some embodiments, by injecting epoxy resin into the housing, the epoxy resin, after curing, wraps around the connection between the wiring portion 22 and the connecting wire 21 to form an insulating encapsulation material.

[0053] In some optional embodiments of this utility model, such as Figure 4 As shown, the housing 10 also has an interface 14, and the sensor body 20 separates the interface 14 from the receiving cavity 13. The sensor body 20 has a seal on the side facing the interface 14, and the seal seals the gap between the sensor body 20 and the housing 10.

[0054] Specifically, the sensor body 20 is used to detect the gas pressure at the interface 14. The gap between the sensor body 20 and the housing 10 is sealed by a sealant to prevent the gas at the interface 14 from flowing into the receiving cavity 13 through the gap between the sensor body 20 and the housing 10. This also prevents the gas at the interface 14 from connecting with the atmosphere through the gap between the sensor body 20 and the housing 10, which would cause the pressure sensor 1 to measure the pressure inaccurately or even have no pressure output, thus making the pressure sensor 1 fail to monitor the gas pressure at the interface 14.

[0055] In some embodiments, interface 14 is adapted to be connected to the pipeline under test, and pressure sensor 1 is used to monitor the gas pressure in the pipeline under test. In this way, when the gas pressure in the pipeline under test exceeds the preset pressure, it can be detected in time, which helps to improve the safety of the pipeline under test.

[0056] Meanwhile, the sealing element can prevent gas in the pipeline under test from flowing into the receiving cavity 13. For example, it can prevent refrigerant gas or gas from flowing into the receiving cavity 13 through the gap between the housing 10 and the sensor body 20, thus avoiding refrigerant or gas leakage.

[0057] In some examples, such as Figure 4 As shown, the pressure sensor 11 also includes a connecting pipe 50, one end of which is connected to the interface 14, and the other end is used to connect to the pipeline to be tested.

[0058] In some embodiments, such as Figure 4 As shown, the sealing element includes a first sealing ring 45, which is located between the bottom of the inner wall of the housing 10 and the sensor body 20. The first sealing ring 45 is located on the outside of the interface 14 to fully seal the gap between the bottom of the housing 10 and the sensor body 20, thereby separating the interface 14 and the receiving cavity 13 and preventing gas at the interface 14 from flowing into the receiving cavity 13.

[0059] In some examples, such as Figure 4 As shown, the sealing element also includes a second sealing ring 46, which is located outside the first sealing ring 45. The bottom of the inner wall of the housing 10 is provided with a mounting groove. The second sealing ring 46 includes a first protrusion and a second protrusion. The first protrusion is located in the mounting groove, and the second protrusion protrudes radially from the first protrusion and is supported on the bottom of the inner wall of the housing 10 to fully seal the gap between the bottom of the housing 10 and the sensor body 20, thereby separating the interface 14 and the receiving cavity 13 and preventing gas at the interface 14 from flowing into the receiving cavity 13.

[0060] In some specific embodiments of this utility model, such as Figure 4 As shown, the sensor body 20 includes a pressure-sensitive element 201 and an electronic control board 202. The pressure-sensitive element 201 is disposed inside the housing 10, separating the receiving cavity 13 and the interface 14. The electronic control board 202 is electrically connected to the pressure-sensitive element 201. The pressure-sensitive element 201 is used to convert pressure signals into electrical signals. When the gas pressure at the interface 14 changes, the pressure-sensitive element 201 will generate different electrical signals. The electronic control board 202 is used to process this signal and obtain the gas pressure at the interface 14. The wiring part 22 is electrically connected to the electronic control board 202. The wiring part 22 is adapted to transmit current to the pressure-sensitive element through the electronic control board 202 and transmit the signal obtained by the electronic control board 202 outward.

[0061] In some specific embodiments of this utility model, such as Figure 4 As shown, the housing 10 includes a first housing portion 101 and a second housing portion 102. The first housing portion 101 and the second housing portion 102 are assembled in the vertical direction. The first housing portion 101 defines the top of the housing 10. A wire hole 11 is provided in the first housing portion 101. The second housing portion 102 defines the bottom of the housing 10 and defines the interface 14.

[0062] In this embodiment, one of the first shell portion 101 and the second shell portion 102 has a snap-fit ​​protrusion and the other has a snap-fit ​​groove. The first shell portion 101 and the second shell portion 102 are assembled in the vertical direction, and the snap-fit ​​protrusion extends into the snap-fit ​​groove, thereby realizing the connection between the first shell portion 101 and the second shell portion 102.

[0063] Specifically, the housing 10 includes a first housing portion 101 and a second housing portion 102 assembled in the vertical direction (it should be understood that the above directional limitation is only for the convenience of describing the drawings and does not limit the actual installation position and direction of the pressure sensor 1), which facilitates the installation and layout of the components inside the housing 10. For example, the sensor body 20 can be fixed to the second housing portion 102, and the connecting wire 21 can be connected to the wiring portion 22 of the sensor body 20. When assembling the first housing portion 101 and the second housing portion 102 in the vertical direction, the connecting wire 21 can extend out of the first housing portion 101 from the corresponding wire hole 11 to realize the installation of the pressure sensor 1.

[0064] An air conditioner according to an embodiment of the present invention is described below. The air conditioner according to an embodiment of the present invention includes a pressure sensor 1 according to the above embodiment of the present invention.

[0065] According to the embodiment of the present invention, the air conditioner utilizes the pressure sensor 1 according to the above embodiment of the present invention. By setting a protective cover 30, the protective cover 30 can shield the connecting wire 21 and the top of the housing 10 from rain and sun, thereby reducing the impact of rain on the connecting wire 21 and the housing 10 and reducing the degree of sun exposure on the connecting wire 21 and the housing 10. This facilitates the improvement of the service life and safety of the connecting wire 21 and the service life of the pressure sensor 1.

[0066] In some embodiments of this utility model, the air conditioner includes a compressor and a heat exchanger, which are connected by a refrigerant pipeline, and the pressure sensor 1 is used to detect the pressure in the refrigerant pipeline.

[0067] Specifically, pressure sensor 1 monitors the gas pressure in the refrigerant pipeline in real time, enabling it to monitor key data on the pressure in the refrigerant pipeline during refrigerant circulation in the air conditioner. This assists the air conditioning control system in adjusting the compressor frequency and expansion valve opening, allowing the air conditioning control system to more accurately adjust the compressor frequency and expansion valve opening. This ensures that the air conditioning system maintains optimal operating efficiency under various operating conditions, such as different indoor and outdoor temperatures or different load changes, achieving rapid cooling or heating of the air conditioner and facilitating energy saving.

[0068] Other components and operations of the air conditioner according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0069] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them.

[0070] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0071] 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.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pressure sensor, characterized in that, include: A housing, the top of which has a wire-through hole; A sensor body is disposed inside the housing and has a connecting wire, a portion of which extends out from the wire hole; A protective cover is disposed on the top of the housing and at least covers the wire hole.

2. The pressure sensor according to claim 1, characterized in that, Also includes: A protective sleeve is provided outside the housing and is fitted over the outside of the connecting line; a protective cover is provided on the protective sleeve.

3. The pressure sensor according to claim 2, characterized in that, The protective cover and the protective sleeve are an integral piece.

4. The pressure sensor according to claim 2, characterized in that, The number of wire-through holes and the number of connecting wires are both multiple, and the positions of the multiple wire-through holes and the multiple connecting wires correspond one-to-one; Each of the connecting wire portions extends from the corresponding wire hole, the protective sleeve is fitted over the outside of the multiple connecting wires, and the protective cover covers the multiple wire holes.

5. The pressure sensor according to claim 1, characterized in that, The protective cover defines a downward-facing chamber, the chamber having a top wall and a peripheral wall, the peripheral wall being connected to the periphery of the top wall, and the top wall covering the wire hole.

6. The pressure sensor according to claim 5, characterized in that, The peripheral wall gradually slopes and extends from top to bottom away from the wire hole.

7. The pressure sensor according to claim 5, characterized in that, The top of the housing has an upwardly extending mounting protrusion, the wire hole is provided on the top wall of the mounting protrusion, and the mounting protrusion extends at least partially into the cavity.

8. The pressure sensor according to claim 5, characterized in that, The lower end of the peripheral wall is connected to a baffle extending outward toward the cavity, and the baffle is connected to the peripheral wall in a circular arc transition.

9. The pressure sensor according to any one of claims 1-8, characterized in that, The sensor body has a wiring portion, and the connecting wire is connected to the wiring portion; The sensor body and the inner surface of the housing define a receiving cavity, which is filled with an insulating encapsulation material, and the insulating encapsulation material covers the connection between the wiring part and the connecting wire.

10. The pressure sensor according to claim 9, characterized in that, The housing also has an interface, and the sensor body separates the interface from the receiving cavity; The sensor body has a sealing element on the side facing the interface, which seals the gap between the sensor body and the housing.

11. An air conditioner, characterized in that, Includes the pressure sensor according to any one of claims 1-10.

12. The air conditioner according to claim 11, characterized in that, The air conditioner includes a compressor and a heat exchanger, which are connected by a refrigerant pipeline. The pressure sensor is used to detect the pressure in the refrigerant pipeline.

Images