Pressure switch and air conditioner having the same

Abstract

The utility model discloses a kind of pressure switch and air conditioner with it, and pressure switch includes: shell, with pressure sensing mouth;Pressure sensing piece, be located in shell, and with shell define containing cavity, pressure sensing piece separates containing cavity and pressure sensing mouth, pressure sensing piece is configured to deform or move under the action of pressure;Moving piece, be located in containing cavity and under the drive of pressure sensing piece, move;First electric connection part and second electric connection part, arrange in horizontal direction, first electric connection part is suitable under the action of moving piece, to with second electric connection part switch to contact state or separation state.Equipment according to the utility model embodiment of pressure switch, first electric connection part and second electric connection part arrange along horizontal direction, so that first contact surface and second contact surface are not horizontally extended, so that dust, insulating particles will be difficult to adhere on first electric connection part and second electric connection part, improve the accuracy of signal obtained by pressure switch.

Description

Technical Field

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

[0002] In related technologies, the vibration during the operation of pressure switches causes frictional movement between the push rod, push rod guide, and support inside the pressure switch. The push rod guide and support are all made of insulating materials. Over time, the frictional movement will generate insulating powder. When the insulating powder adheres to the plane between the two contacts of the pressure switch, it will cause the contacts to fail to conduct due to the insulating powder, resulting in an alarm error of the pressure switch. 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 switch that, by arranging the first and second electrical connection parts horizontally, makes the first and second contact surfaces extend non-horizontally. This makes it difficult for dust and insulating particles to adhere to the first and second contact surfaces, and consequently, to the first and second electrical connection parts. This allows the pressure switch to respond promptly and accurately, improving the accuracy of signal acquisition, reducing the possibility of alarm errors, and enhancing system safety.

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

[0005] A pressure switch according to a first aspect of the present invention includes: a housing having a pressure-sensing port; a pressure-sensing element disposed within the housing and defining a receiving cavity therebetween, the pressure-sensing element separating the receiving cavity from the pressure-sensing port, the pressure-sensing element being configured to deform or move under pressure; a movable element disposed within the receiving cavity and moving under the drive of the pressure-sensing element; a first electrical connection portion and a second electrical connection portion disposed within the receiving cavity and arranged horizontally, the first electrical connection portion being adapted to move under the action of the movable element to switch to a contact state or a separation state with the second electrical connection portion.

[0006] According to the embodiments of the present invention, the pressure switch, by arranging the first electrical connection part and the second electrical connection part in a horizontal direction, makes the first contact surface and the second contact surface extend in a non-horizontal direction. In this way, dust and insulating particles are less likely to adhere to the first contact surface and the second contact surface, and thus less likely to adhere to the first electrical connection part and the second electrical connection part. This enables the pressure switch to respond promptly and accurately, improves the accuracy of the signal acquired by the pressure switch, reduces the possibility of alarm errors by the pressure switch, and improves the safety of the system.

[0007] In addition, the pressure switch according to the above embodiments of the present invention may also have the following additional technical features: According to some embodiments of the present invention, a pressure switch is characterized in that it further includes: a first wiring portion and a second wiring portion disposed within the receiving cavity, wherein the first wiring portion is electrically connected to the first electrical connection portion and the second wiring portion is electrically connected to the second electrical connection portion; and an elastic arm disposed within the receiving cavity and electrically connected between the first wiring portion and the first electrical connection portion, wherein the elastic arm is adapted to undergo elastic deformation under the action of the moving member to drive the first electrical connection portion to move.

[0008] According to some optional embodiments of the present invention, when the pressure switch is in its initial state, the first electrical connection and the second electrical connection are in contact, and the elastic arm is adapted to undergo elastic deformation under the action of the moving member to drive the first electrical connection and the second electrical connection to switch to a separated state; or, when the pressure switch is in its initial state, the first electrical connection and the second electrical connection are in a separated state, and the elastic arm is adapted to undergo elastic deformation under the action of the moving member to drive the first electrical connection and the second electrical connection to switch to a contact state.

[0009] According to some optional embodiments of the present invention, the elastic arm has a mating part, and during the movement of the moving member, the moving member slides with the mating part to drive the first electrical connection part to move at least along the horizontal direction.

[0010] According to some specific embodiments of the present invention, the mating part has a first guide surface, the moving part has a second guide surface, the first guide surface and the second guide surface extend in the same direction and slide in each other, and the extension direction of the first guide surface is set at an acute angle to the horizontal direction.

[0011] According to some specific embodiments of the present invention, the movable member is movable in the vertical direction and is disposed opposite to the mating part in the vertical direction. The elastic arm includes: a first extension extending in the horizontal direction and one end connected to the first wiring part; a second extension extending in the vertical direction and one end connected to the first electrical connection part, and the other end of the second extension connecting to the other end of the first extension; wherein the mating part is disposed on the side of the second extension away from the first extension in the horizontal direction.

[0012] According to some optional embodiments of the present invention, the pressure switch further includes: a first connecting arm, one end of which is fixed inside the housing and the other end of which extends into the receiving cavity to connect with the elastic arm; and / or a second connecting arm, one end of which is fixed inside the housing and the other end of which extends into the receiving cavity to connect with the second electrical connection portion.

[0013] According to some specific embodiments of the present invention, the housing includes: a first housing portion, wherein the pressure-sensing port is disposed in the first housing portion; a second housing portion, wherein the second housing portion and the pressure-sensing element are located within the first housing portion and together define the receiving cavity, the first housing portion and the second housing portion are connected by potting compound, and the potting compound wraps the first wiring portion and the second wiring portion.

[0014] According to some embodiments of the present invention, a guide seat is provided inside the receiving cavity, the guide seat has a guide channel, and the moving member slides in cooperation with the guide channel.

[0015] According to some embodiments of the present invention, the housing further includes a pressure-sensing cavity, which is located on the side of the pressure-sensing element away from the receiving cavity, and the pressure-sensing cavity is connected to the pressure-sensing port.

[0016] According to some optional embodiments of the present invention, the pressure switch further includes: a connecting pipe, one end of which is connected to the pressure sensing port, and the other end of which is adapted to be connected to the pipeline to be tested.

[0017] According to some embodiments of the present invention, the pressure-sensing element includes a pressure-sensing diaphragm, which separates the pressure-sensing port and the receiving cavity.

[0018] According to a second aspect of the present invention, an air conditioner is provided, the air conditioner including the pressure switch described in the first aspect of the present invention.

[0019] According to the embodiments of the present invention, the air conditioner utilizes the pressure switch described in the first aspect of the present invention, in which the first electrical connection portion and the second electrical connection portion are arranged in a horizontal direction, such that the first contact surface and the second contact surface extend in a non-horizontal direction. This makes it difficult for dust and insulating particles to adhere to the first contact surface and the second contact surface, and consequently, to adhere to the first electrical connection portion and the second electrical connection portion. This allows the pressure switch to respond promptly and accurately, improves the accuracy of the signal acquired by the pressure switch, reduces the possibility of alarm errors by the pressure switch, and improves the safety of the system.

[0020] According to some embodiments of the present invention, the air conditioner includes a compressor, an evaporator, and a condenser. The exhaust port of the compressor and the condenser are connected through a first pipeline, and the intake port of the compressor and the evaporator are connected through a second pipeline. The pressure switch is connected to the first pipeline. When the pressure in the first pipeline reaches a preset pressure value, the first electrical connection and the second electrical connection switch to a contact state or a separation state, so that the pressure switch sends a compressor stop signal.

[0021] 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

[0022] 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 cross-sectional view of a pressure switch according to an embodiment of the present utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a structural schematic diagram of a pressure switch according to an embodiment of the present utility model.

[0023] Attached reference numerals: 1. Pressure switch; 10. Housing; 101. Receiving cavity; 102. Pressure sensing cavity; 103. Pressure sensing port; 11. First housing portion; 12. Second housing portion; 21. Pressure-sensitive diaphragm; 30. Moving part; 31. Second guide surface; 41. First electrical connection part; 42. Second electrical connection part; 51. First wiring section; 52. Second wiring section; 60. Flexible arm; 61. First extension; 62. Second extension; 63. Fitting part; 631. First guide surface; 71. First connecting arm; 72. Second connecting arm; 81. Guide seat; 82. Connecting pipe; 90. External Interfaces. Detailed Implementation

[0024] 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.

[0025] The pressure switch 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0026] like Figures 1-3 As shown, the pressure switch 1 according to an embodiment of the present invention includes a housing 10, a pressure sensing element, a moving element 30, a first electrical connection part 41, and a second electrical connection part 42.

[0027] The housing 10 has a pressure-sensing port 103. A pressure-sensing element is disposed inside the housing 10. The pressure-sensing element and the housing 10 define a receiving cavity 101. The pressure-sensing element separates the receiving cavity 101 from the pressure-sensing port 103. The pressure-sensing element is configured to deform or move under pressure. A moving element 30 is disposed inside the receiving cavity 101 and moves under the drive of the pressure-sensing element.

[0028] The first electrical connection part 41 and the second electrical connection part 42 are disposed in the receiving cavity 101. The first electrical connection part 41 and the second electrical connection part 42 are arranged in a horizontal direction. The first electrical connection part 41 is adapted to move under the action of the moving member 30 to switch to a contact state or a separation state with the second electrical connection part 42.

[0029] When the first electrical connection portion 41 and the second electrical connection portion 42 are in contact, the electrical connection relationship between the first electrical connection portion 41 and the second electrical connection portion 42 is electrical connection. When the first electrical connection portion 41 and the second electrical connection portion 42 are in a separated state, the electrical connection relationship between the first electrical connection portion 41 and the second electrical connection portion 42 is disconnection.

[0030] When the first electrical connection part 41 and the second electrical connection part 42 switch between the contact state and the separation state, the electrical connection relationship between the first electrical connection part 41 and the second electrical connection part 42 will also change, thereby generating an electrical signal. The electrical signal can be used to reflect whether the pressure of the pressure sensing element towards the pressure sensing port 103 exceeds the preset pressure value.

[0031] Specifically, when the pressure on the side of the pressure sensing element facing the pressure sensing port 103 exceeds the preset pressure value, the pressure sensing element will deform or move under the action of the pressure. At the same time, the pressure sensing element will drive the moving part 30 to move. The moving part 30 will drive the first electrical connection part 41 to move, thereby changing the relative position of the first electrical connection part 41 and the second electrical connection part 42, so that the first electrical connection part 41 and the second electrical connection part 42 switch from a contact state to a separation state, or switch the first electrical connection part 41 and the second electrical connection part 42 from a separation state to a contact state. At this time, the electrical connection relationship between the first electrical connection part 41 and the second electrical connection part 42 has changed.

[0032] Understandably, when the pressure switch 1 operates in the system, and the pressure on the side of the pressure sensor facing the pressure port 103 is higher than the preset pressure value, the safety of the system is threatened. At this time, under the action of pressure, the pressure sensor drives the moving part 30 to move, and the moving part 30 drives the first electrical connection part 41 to move, causing the electrical connection state between the first electrical connection part 41 and the second electrical connection part 42 to change. At this time, the pressure switch 1 can obtain the information that the pressure on the side of the pressure sensor facing the pressure port 103 is higher than the preset pressure value, so that when the pressure on the side of the pressure sensor facing the pressure port 103 is too high, the system can react in time, such as cutting off the circuit or releasing pressure, to ensure the safety of the system.

[0033] The first electrical connection portion 41 and the second electrical connection portion 42 are arranged in a horizontal direction, so that the first electrical connection portion 41 and the second electrical connection portion 42 are in contact with each other in the horizontal direction when in contact, which can reduce the possibility of dust and insulating particles adhering to the first electrical connection portion 41 and the second electrical connection portion 42.

[0034] Specifically, the first electrical connection 41 has a first contact surface on the side facing the second electrical connection 42 in the horizontal direction, and the second electrical connection 42 has a second contact surface on the side facing the first electrical connection 41 in the horizontal direction. The first contact surface and the second contact surface are adapted to contact or be spaced apart in the horizontal direction. Therefore, the first contact surface and the second contact surface extend in a non-horizontal direction, which can effectively reduce the possibility of dust and insulating particles adhering to the first contact surface and the second contact surface. This avoids the electrical connection between the first electrical connection 41 and the second electrical connection 42 being disconnected due to the presence of insulating particles between the first contact surface and the second contact surface when the first electrical connection 41 and the second electrical connection 42 are in a contact state. This would cause the pressure switch 1 to misjudge the positional relationship of the first electrical connection 41 and the second electrical connection 42, mistakenly believing that the first electrical connection 41 and the second electrical connection 42 are in a separated state, which would cause the pressure switch 1 to make a false alarm or a delayed alarm.

[0035] Specifically, the first contact surface and the second contact surface can extend vertically or extend obliquely in the vertical direction.

[0036] Specifically, when the pressure switch 1 vibrates, insulating material components on the pressure switch 1 may generate insulating particles due to scratches or other reasons.

[0037] If insulating particles adhere to the first electrical connection 41 or the second electrical connection 42, and the first electrical connection 41 and the second electrical connection 42 are in contact, the electrical connection between the first electrical connection 41 and the second electrical connection 42 will be disconnected. In this case, it will be mistakenly judged that the first electrical connection 41 and the second electrical connection 42 are in a separated state. As a result, when the state between the first electrical connection 41 and the second electrical connection 42 changes, the pressure switch 1 will mistakenly judge that the state between the first electrical connection 41 and the second electrical connection 42 has not changed, which will affect the accuracy of the signal obtained by the pressure switch 1.

[0038] To address the problem of insulating particles adhering to the first electrical connection 41 or the second electrical connection 42, this invention arranges the first electrical connection 41 and the second electrical connection 42 horizontally, and extends the first contact surface and the second contact surface vertically or obliquely in the vertical direction. This makes it difficult for dust and insulating particles to adhere to the first contact surface and the second contact surface, avoiding misjudgments of the electrical connection relationship and positional relationship of the first electrical connection 41 and the second electrical connection 42, and facilitating the improvement of the accuracy of signal acquisition by the pressure switch 1.

[0039] In addition, in some embodiments, the movable part 30 and the guide seat 81 are slidably engaged, and both the movable part 30 and the guide seat 81 are made of insulating material, and insulating particles may fall off the movable part 30 and the guide seat 81.

[0040] On the one hand, since the first and second contact surfaces extend vertically or obliquely in the vertical direction, dust and insulating particles are less likely to adhere to them. On the other hand, the moving part 30 and the guide seat 81 are located below the first electrical connection part 41 or the second electrical connection part 42. Under the action of gravity, insulating particles that fall off the moving part 30 and the guide seat 81 are less likely to adhere to the first electrical connection part 41 or the second electrical connection part 42. This effectively avoids the adhesion of insulating particles to the first electrical connection part 41 or the second electrical connection part 42, thus preventing misjudgments of the electrical connection relationship and positional relationship between the first electrical connection part 41 and the second electrical connection part 42, and facilitating the improvement of the accuracy of signal acquisition by the pressure switch 1.

[0041] According to the embodiment of the present invention, the pressure switch 1 arranges the first electrical connection portion 41 and the second electrical connection portion 42 in a horizontal direction, so that the first contact surface and the second contact surface extend in a non-horizontal direction. In this way, dust and insulating particles are difficult to adhere to the first contact surface and the second contact surface, and thus difficult to adhere to the first electrical connection portion 41 and the second electrical connection portion 42. This enables the pressure switch 1 to respond in a timely and accurate manner, improves the accuracy of the signal acquisition by the pressure switch, reduces the possibility of alarm errors by the pressure switch, and improves the safety of the system.

[0042] The pressure switch 1 according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0043] In some specific embodiments of this utility model, such as Figures 1-3 As shown, the pressure switch 1 includes a housing 10, a pressure sensing element, a moving element 30, a first electrical connection part 41, and a second electrical connection part 42.

[0044] In some embodiments of this utility model, such as Figure 1 As shown, the pressure switch 1 also includes a first wiring portion 51 and a second wiring portion 52. The first wiring portion 51 and the second wiring portion 52 are disposed in the receiving cavity 101. The first wiring portion 51 is electrically connected to the first electrical connection portion 41, and the second wiring portion 52 is electrically connected to the second electrical connection portion 42. The first wiring portion 51 and the second wiring portion 52 are used to transmit electrical signals between the first electrical connection portion 41 and the second electrical connection portion 42.

[0045] Specifically, when the first electrical connection portion 41 and the second electrical connection portion 42 are in contact, the first wiring portion 51 and the second wiring portion 52 are electrically connected through the first electrical connection portion 41 and the second electrical connection portion 42, and an electrical signal can be formed between the first electrical connection portion 41 and the second electrical connection portion 42 at this time. When the first electrical connection portion 41 and the second electrical connection portion 42 are in a separated state, the electrical connection between the first wiring portion 51 and the second wiring portion 52 is broken, and another electrical signal is formed between the first electrical connection portion 41 and the second electrical connection portion 42 at this time.

[0046] When the pressure on the side of the pressure sensing element facing the pressure sensing port 103 exceeds the preset pressure value, the state between the first electrical connection part 41 and the second electrical connection part 42 changes, and the electrical signal between the first wiring part 51 and the second wiring part 52 changes. The first wiring part 51 and the second wiring part 52 can transmit this signal to the pressure switch 1 or the controller in the system so as to react in time when the pressure value of the system is too high, such as cutting off the circuit in the system or releasing pressure. No further restrictions are imposed here.

[0047] In some embodiments, such as Figure 3 As shown, the first wiring portion 51 and the second wiring portion 52 constitute part of the external interface 90 of the pressure switch 1. The external interface 90 of the pressure switch 1 is suitable for connection to a controller or power supply to transmit the signals collected by the first wiring portion 51 and the second wiring portion 52 in the pressure switch 1 to the controller; or the pressure switch 1 itself can analyze the signals collected by the first wiring portion 51 and the second wiring portion 52. No further restrictions are imposed here.

[0048] In some optional embodiments of this utility model, such as Figure 1 , Figure 2As shown, the pressure switch 1 also includes an elastic arm 60, which is disposed in the receiving cavity 101. The elastic arm 60 is electrically connected between the first wiring part 51 and the first electrical connection part 41. The elastic arm 60 is adapted to undergo elastic deformation under the action of the moving member 30 to drive the first electrical connection part 41 to move, so that the first electrical connection part 41 and the second electrical connection part 42 are switched to a contact state or a separation state.

[0049] Specifically, when the pressure-sensing component deforms or moves, the pressure-sensing component drives the moving component 30 to move. When the moving component 30 moves, it applies a force to the elastic arm 60 and causes the elastic component to undergo elastic deformation. When the elastic arm 60 deforms, it drives the first electrical connection part 41 to move, thereby switching the first electrical connection part 41 and the second electrical connection part 42 to a contact state or a separation state.

[0050] When the state between the first electrical connection part 41 and the second electrical connection part 42 changes, the electrical signal between the first wiring part 51 and the second wiring part 52 changes, and the first wiring part 51 and the second wiring part 52 can transmit the signal to the pressure switch 1 or the controller in the system so as to react in time when the pressure value of the system is too high, such as cutting off the circuit in the system, depressurizing, etc., to ensure the safety of the system.

[0051] In some specific embodiments of this utility model, such as Figure 1 As shown, when the pressure switch 1 is in its initial state, the first electrical connection part 41 and the second electrical connection part 42 are in contact. The elastic arm 60 is adapted to undergo elastic deformation under the action of the moving part 30, so as to drive the first electrical connection part 41 and the second electrical connection part 42 to switch to a separated state. At this time, the electrical connection between the first wiring part 51 and the second wiring part 52 changes from electrical connection to disconnection. The electrical signal between the first wiring part 51 and the second wiring part 52 changes, and the first wiring part 51 and the second wiring part 52 can transmit the signal to the pressure switch 1 or the controller in the system so as to react in time when the system pressure value is too high, such as cutting off the circuit in the system or depressurizing to ensure the safety of the system.

[0052] In some embodiments, such as Figure 1 , Figure 2 As shown, the elastic arm 60 exerts a horizontal force on the first electrical connection 41 toward the second electrical connection 42, so that the first electrical connection 41 and the second electrical connection 42 can be kept in contact. This can prevent the state between the first electrical connection 41 and the second electrical connection 42 from changing due to environmental factors when the pressure switch 1 shakes or moves, thereby improving the stability of the first electrical connection 41 and the second electrical connection 42 when they are in contact and eliminating the influence of environmental factors on the positional state of the first electrical connection 41 and the second electrical connection 42.

[0053] When the pressure on the side of the pressure sensing element facing the pressure sensing port 103 is higher than the preset pressure value, the pressure sensing element deforms or moves, and the pressure sensing element drives the moving part 30 to move. At this time, the moving part 30 moves toward the elastic arm 60 and drives the elastic arm 60 to deform. At this time, the elastic arm 60 drives the first electrical connection part 41 to move away from the second electrical connection part 42, thereby switching the first electrical connection part 41 and the second electrical connection part 42 from the contact state to the separation state.

[0054] In some other specific embodiments of this utility model, when the pressure switch 1 is in the initial state, the first electrical connection part 41 and the second electrical connection part 42 are in a separated state. The elastic arm 60 is adapted to undergo elastic deformation under the action of the moving part 30, so as to drive the first electrical connection part 41 and the second electrical connection part 42 to switch to a contact state. At this time, the electrical connection between the first wiring part 51 and the second wiring part 52 changes from disconnection to connection. The electrical signal between the first wiring part 51 and the second wiring part 52 changes, and the first wiring part 51 and the second wiring part 52 can transmit the signal to the pressure switch 1 or the controller in the system so as to react in time when the pressure value of the system is too high, such as cutting off the circuit in the system or releasing pressure to ensure the safety of the system.

[0055] In some embodiments, the elastic arm 60 exerts a horizontal force on the first electrical connection 41 against the second electrical connection 42, so that the first electrical connection 41 and the second electrical connection 42 can be kept in a separated state. This can prevent the state between the first electrical connection 41 and the second electrical connection 42 from changing due to environmental factors when the pressure switch 1 shakes or moves, thereby improving the stability of the first electrical connection 41 and the second electrical connection 42 when they are in a separated state and eliminating the influence of environmental factors on the positional state of the first electrical connection 41 and the second electrical connection 42.

[0056] When the pressure on the side of the pressure sensing element facing the pressure sensing port 103 is higher than the preset pressure value, the pressure sensing element deforms or moves, and the pressure sensing element drives the moving part 30 to move. At this time, the moving part 30 moves toward the elastic arm 60 and drives the elastic arm 60 to deform. At this time, the elastic arm 60 drives the first electrical connection part 41 to move toward the second electrical connection part 42, thereby switching the first electrical connection part 41 and the second electrical connection part 42 from the separated state to the contact state.

[0057] In some optional embodiments of this utility model, such as Figure 1 , Figure 2As shown, the elastic arm 60 has a mating part 63. During the movement of the moving member 30, the moving member 30 slides with the mating part 63 to drive the first electrical connection part 41 to move at least in the horizontal direction, thereby driving the first electrical connection part 41 and the second electrical connection part 42 to switch to a contact state or a separation state.

[0058] Specifically, since the first electrical connection part 41 and the second electrical connection part 42 are arranged in the horizontal direction, when the elastic arm 60 drives the first electrical connection part 41 to move in the horizontal direction, the distance between the first electrical connection part 41 and the second electrical connection part 42 in the horizontal direction changes, thereby realizing the switching between the first electrical connection part 41 and the second electrical connection part 42 in the contact state and the separation state.

[0059] In some embodiments, the elastic arm 60 exerts a horizontal force on the first electrical connection 41 toward the second electrical connection 42, so that the first electrical connection 41 can remain in contact with the second electrical connection 42. When the pressure of the pressure sensing element toward the pressure sensing port 103 is higher than a preset pressure value, the pressure sensing element moves and drives the moving member 30 to move. The moving member 30 causes the elastic arm 60 to deform through the mating member. Under the force of the moving member 30, the elastic arm 60 will drive the first electrical connection 41 to move horizontally away from the second electrical connection 42, thereby enabling the first electrical connection 41 and the second electrical connection 42 to switch from a contact state to a separation state.

[0060] In other embodiments, the elastic arm 60 exerts a horizontal force on the first electrical connection 41 away from the second electrical connection 42, so that the first electrical connection 41 can remain in a state separated from the second electrical connection 42. When the pressure of the pressure sensing element towards the pressure sensing port 103 is higher than a preset pressure value, the pressure sensing element moves and drives the moving member 30 to move. The moving member 30 drives the elastic arm 60 to deform through the mating member. Under the force of the moving member 30, the elastic arm 60 will drive the first electrical connection 41 to move horizontally towards the second electrical connection 42, thereby enabling the first electrical connection 41 and the second electrical connection 42 to switch from a separated state to a contact state.

[0061] In some specific embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the mating part 63 has a first guide surface 631, and the moving part 30 has a second guide surface 31. The first guide surface 631 and the second guide surface 31 extend in the same direction and slide together. The extension direction of the first guide surface 631 is set at an acute angle to the horizontal direction.

[0062] It needs to be explained here that the first guide surface 631 and the second guide surface 31 extend in the same direction and slide together. The extension direction of the first guide surface 631 is set at an acute angle to the horizontal direction, meaning that the extension direction of the first guide surface 631 has an angle with both the vertical and horizontal directions, indicating that the extension direction of the first guide surface 631 is neither horizontal nor vertical. Specifically, as... Figure 2 As shown, the angle between the extension direction of the first guide surface 631 and the horizontal direction is M.

[0063] When the moving part 30 moves and the first guide surface 631 and the second guide surface 31 slide relative to each other, there is a force between the first guide surface 631 and the second guide surface 31 perpendicular to the first guide surface 631. This force can be used to drive the elastic arm 60 to deform along the direction of the force, so that the elastic arm 60 can at least drive the first electrical connection part 41 to move in the horizontal direction, thereby realizing the switching between the first electrical connection part 41 and the second electrical connection part 42 in the contact state and the separation state.

[0064] In some embodiments, such as Figure 2 As shown, the first electrical connection 41 and the second electrical connection 42 are arranged in the left-right direction (it should be understood that the above direction is only for the convenience of describing the figure and does not limit the actual setting position and direction of the pressure switch 1). The second electrical connection 42 is located to the left of the first electrical connection 41. The first guide surface 631 extends obliquely in the upward and leftward direction. The elastic arm 60 exerts a leftward force on the first electrical connection 41 so that the first electrical connection 41 and the second electrical connection 42 are kept in contact.

[0065] When the pressure on the side of the pressure sensor facing the pressure port 103 exceeds the preset pressure value, the pressure sensor drives the moving part 30 to move upward. At this time, the second guide surface 31 and the first guide surface 631 slide together, and the elastic arm 60 is driven to deform to the right and upward through the mating part 63. At this time, the elastic arm 60 drives the first electrical connection part 41 to move to the right, thereby switching the first electrical connection part 41 and the second electrical connection part 42 to the separated state.

[0066] In some specific embodiments of this utility model, such as Figure 2 As shown, the movable member 30 is movable in the vertical direction and is arranged opposite to the mating part 63 in the vertical direction. The elastic arm 60 includes a first extension 61 and a second extension 62. The first extension 61 extends in the horizontal direction and one end of the first extension 61 is connected to the first wiring part 51. The second extension 62 extends in the vertical direction and one end of the second extension 62 is connected to the first electrical connection part 41. The other end of the second extension 62 is connected to the other end of the first extension 61.

[0067] The mating part 63 is located on the side of the second extension 62 that is away from the first extension 61 in the horizontal direction. When the moving member 30 moves under the drive of the pressure-sensitive member, the moving member 30 moves in the vertical direction toward the mating part 63. When the moving member 30 contacts the mating part 63, the moving member 30 drives the elastic arm 60 to deform through the mating part 63. The elastic arm 60 drives the first electrical connection part 41 to move, so that the first electrical connection part 41 and the second electrical connection part 42 switch to a contact state or a separation state.

[0068] Furthermore, by providing the first extension 61 and the second extension 62, the first electrical connection part 41 and the first wiring part 51 can be connected, and the distance between the first electrical connection part 41 and the moving part 30 can be controlled by controlling the length of the second extension 62.

[0069] Specifically, when the moving part 30 moves or the pressure switch 1 vibrates, insulating particles may detach from the moving part 30 or the insulating parts in contact with the moving part 30.

[0070] By providing the second extension 62, the distance between the moving part 30 and the first electrical connection part 41 can be set to be greater, thereby making it less likely for insulating particles that fall off the moving part 30 and the parts disconnected from the moving part 30 to adhere to the first electrical connection part 41 and the second electrical connection part 42. This improves the accuracy of the signal acquisition by the pressure switch 1. Thus, when the pressure switch 1 is applied in the system, the system can react in a timely manner when safety is threatened, thereby improving the safety of the system.

[0071] In some optional embodiments of this utility model, such as Figure 1 As shown, the pressure switch 1 also includes a first connecting arm 71. One end of the first connecting arm 71 is fixed inside the housing 10, and the other end of the first connecting arm 71 extends into the receiving cavity 101 to connect with the elastic arm 60. The first connecting arm 71 realizes the electrical connection between the first wiring part 51 and the first electrical connection part 41, so as to determine the positional relationship between the first electrical connection part 41 and the second electrical connection part 42 through the electrical connection relationship between the first wiring part 51 and the second wiring part 52.

[0072] Specifically, when the positional state between the first electrical connection 41 and the second electrical connection 42 changes, the electrical signal between the first wiring part 51 and the second wiring part 52 changes, and the first wiring part 51 and the second wiring part 52 can transmit the signal to the pressure switch 1 or the controller in the system, so that the system can react in time when safety is threatened, such as cutting off the circuit in the system or depressurizing, etc. No further restrictions are imposed here.

[0073] The first wiring portion 51 is connected to the end of the first connecting arm 71 fixed inside the housing. This reduces the length of the first wiring portion 51 extending into the housing 10. At the same time, the end of the first connecting arm 71 can be used to limit the position of the first wiring portion 51, preventing the first wiring portion 51 from getting tangled and thus improving the service life of the first wiring portion 51.

[0074] In some optional embodiments of this utility model, such as Figure 1 As shown, the pressure switch 1 also includes a second connecting arm 72. One end of the second connecting arm 72 is fixed inside the housing 10, and the other end of the second connecting arm 72 extends into the receiving cavity 101 to connect with the second electrical connection part 42. The second connecting arm 72 realizes the electrical connection between the second wiring part 52 and the second electrical connection part 42, so as to determine the positional relationship between the first electrical connection part 41 and the second electrical connection part 42 through the electrical connection relationship between the first wiring part 51 and the second wiring part 52.

[0075] Specifically, when the positional state between the first electrical connection 41 and the second electrical connection 42 changes, the electrical signal between the first wiring part 51 and the second wiring part 52 changes, and the first wiring part 51 and the second wiring part 52 can transmit the signal to the pressure switch 1 or the controller in the system, so that the system can react in time when safety is threatened, such as cutting off the circuit in the system or depressurizing, etc. No further restrictions are imposed here.

[0076] The second wiring portion 52 is connected to the end of the second connecting arm 72 fixed inside the housing. This reduces the length of the second wiring portion 52 extending into the housing 10. At the same time, the end of the second connecting arm 72 can be used to limit the position of the second wiring portion 52, preventing the second wiring portion 52 from getting tangled and thus improving the service life of the first wiring portion 51.

[0077] In some specific embodiments of this utility model, such as Figure 1 As shown, the housing 10 includes a first housing portion 11 and a second housing portion 12. A pressure-sensing port 103 is provided in the first housing portion 11. The second housing portion 12 and the pressure-sensing element are located inside the first housing portion 11. The second housing portion 12 and the pressure-sensing element define a receiving cavity 101. The first housing portion 11 and the second housing portion 12 are connected by potting compound. The potting compound covers the first wiring portion 51 and the second wiring portion 52.

[0078] Specifically, the potting compound is suitable for sealing the side of the housing 10 away from the pressure-sensing port 103 to prevent external pressure from affecting the pressure sensing element's perception of the pressure on the side facing the pressure-sensing port 103.

[0079] In some embodiments, the portions of the first connecting arm 71 and the second connecting arm 72 extending out of the receiving cavity 101 are wrapped with potting compound to fix one end of the first connecting arm 71 and one end of the second connecting arm 72. The potting compound includes the first wiring portion 51 and the second wiring portion 52, which helps to isolate the portions of the first connecting arm 71, the second connecting arm 72, the first wiring portion 51 and the second wiring portion 52 wrapped with potting compound from the air, thereby protecting them and reducing the possibility of oxidation of the first connecting arm 71, the second connecting arm 72, the first wiring portion 51 and the second wiring portion 52. This helps to improve the service life of the first connecting arm 71, the second connecting arm 72, the first wiring portion 51 and the second wiring portion 52, and thus improve the service life of the pressure switch 1.

[0080] In some embodiments of this utility model, such as Figure 1 As shown, a guide seat 81 is provided in the receiving cavity 101. The guide seat 81 has a guide channel. The moving part 30 is slidably engaged with the guide channel. The guide seat 81 is used to restrict the moving direction of the moving part 30 so that when the pressure sensing part deforms or moves, the moving direction of the moving part 30 can be guaranteed, so that the moving part 30 can be moved to the contact state or the separation state when it moves.

[0081] In some embodiments, the movable member 30 and the guide seat 81 are both made of insulating material. When the movable member 30 and the guide seat 81 move relative to each other, insulating particles may fall off. The movable member 30 and the guide seat 81 are located below the first electrical connection portion 41 and the second electrical connection portion 42.

[0082] Under the influence of gravity, insulating particles that fall off the moving part 30 and the guide seat 81 are unlikely to adhere to the first electrical connection part 41 or the second electrical connection part 42. This effectively prevents insulating particles from adhering to the first electrical connection part 41 or the second electrical connection part 42, thus avoiding misjudgment of the electrical connection relationship and positional relationship between the first electrical connection part 41 and the second electrical connection part 42, and facilitating the improvement of the accuracy of signal acquisition by the pressure switch 1.

[0083] In some embodiments, the axial direction of the guide channel extends vertically, and the moving member 30 is adapted to move vertically under the drive of the pressure-sensitive member.

[0084] In some embodiments of this utility model, such as Figure 1As shown, the housing 10 also has a pressure-sensing cavity 102. The pressure-sensing cavity 102 is located on the side of the pressure-sensing member away from the receiving cavity 101, and the pressure-sensing cavity 102 is connected to the pressure-sensing port 103. Specifically, when the pressure at the pressure-sensing cavity 102 is higher than the preset pressure value, the pressure-sensing member is suitable to deform or move under the action of the pressure in the pressure-sensing cavity 102, and the pressure-sensing member drives the moving member 30 to move, so that the moving member 30 drives the first electrical connection part 41 to move, so that the first electrical connection part 41 and the second electrical connection part 42 switch to a contact state or a separation state.

[0085] Understandably, when pressure switch 1 operates in the system, the system's pipeline is connected to pressure sensing chamber 102, and the pressure in the system's pipeline is the same as the pressure inside pressure sensing chamber 102. When the pressure inside pressure sensing chamber 102 is higher than a preset pressure value, the safety of the system is threatened. At this time, under the action of pressure, the pressure sensing element drives the moving part 30 to move, and the moving part 30 drives the first electrical connection part 41 to move, causing a change in the position and electrical connection relationship between the first electrical connection part 41 and the second electrical connection part 42. This allows pressure switch 1 to obtain information that the pressure inside pressure sensing chamber 102 is higher than the preset pressure value, so that when the pressure inside pressure sensing chamber 102 is too high, that is, when the pressure in the system's pipeline is too high, the system can react in time, such as cutting off the circuit or releasing pressure, to ensure the safety of the system.

[0086] In some optional embodiments of this utility model, such as Figure 1 The pressure switch 1 also includes a connecting pipe 82, one end of which is connected to the pressure sensing port 103, and the other end is adapted to be connected to the pipeline to be tested, so as to detect whether the pressure in the pipeline to be tested exceeds the preset pressure value.

[0087] Specifically, the pressure inside the pipeline under test is the same as that inside the connecting pipe 82. When the pressure inside the pipeline under test is higher than the preset pressure value, the pressure sensing element drives the moving part 30 to move under the pressure. The moving part 30 drives the first electrical connection part 41 to move, which causes the electrical connection state between the first electrical connection part 41 and the second electrical connection part 42 to change. This enables the pressure switch 1 to obtain information that the pressure inside the pipeline under test is higher than the preset pressure value, so that it can react in time when the pressure inside the pipeline under test is too high, such as cutting off the circuit or releasing pressure, to ensure the safety of the pipeline under test.

[0088] In some embodiments of the utility model, such as Figure 1As shown, the pressure-sensing element includes a pressure-sensing diaphragm 21, which separates the pressure-sensing port 103 and the receiving cavity 101. The pressure-sensing diaphragm 21 is an elastic element capable of converting pressure signals into displacement or deformation. Specifically, when the pressure on the side of the pressure-sensing diaphragm 21 facing the pressure-sensing port 103 is higher than a preset pressure, the pressure-sensing diaphragm 21 can deform or move, causing the moving member 30 to move. The moving member 30 then causes the first electrical connection part 41 to move, resulting in a change in the electrical connection relationship between the first electrical connection part 41 and the second electrical connection part 42. This allows the pressure switch 1 to obtain information that the pressure in the pressure-sensing cavity 102 is higher than the preset pressure value, so that the system can react in time when the pressure in the system is too high, such as cutting off the circuit or releasing pressure, to ensure the safety of the system.

[0089] 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 switch 1 according to the above embodiment of the present invention.

[0090] According to the embodiment of the present invention, the air conditioner utilizes the pressure switch 1 according to the above embodiment of the present invention, in which the first electrical connection part 41 and the second electrical connection part 42 are arranged in a horizontal direction, such that the first contact surface and the second contact surface extend in a non-horizontal direction. In this way, dust and insulating particles are difficult to adhere to the first contact surface and the second contact surface, and thus difficult to adhere to the first electrical connection part 41 and the second electrical connection part 42. This allows the pressure switch 1 to react promptly and accurately, improves the accuracy of the signal obtained by the pressure switch, reduces the possibility of alarm errors by the pressure switch, and improves the safety of the system. Thus, when the pressure switch 1 is applied in the system, the system can react promptly when safety is threatened, thereby improving the safety of the system.

[0091] In some embodiments of this utility model, the air conditioner includes a compressor, an evaporator, and a condenser. The compressor's exhaust port and the condenser are connected by a first pipeline, and the compressor's intake port and the evaporator are connected by a second pipeline. Under the action of the compressor, the refrigerant is adapted to circulate among the compressor, condenser, and evaporator to achieve cooling or heating of a designated area by the air conditioner.

[0092] The pressure switch 1 is connected to the first pipeline. When the pressure in the first pipeline reaches the preset pressure value, the first electrical connection part 41 and the second electrical connection part 42 switch to the contact state or the separation state so that the pressure switch 1 sends a compressor stop signal.

[0093] Specifically, when the compressor is working normally and the refrigerant flows through the first pipeline, the pressure in the first pipeline is lower than the preset pressure value. When the pressure in the first pipeline exceeds the preset pressure value, it may be due to faults such as excessive refrigerant, condenser blockage, poor heat dissipation, or high temperature environment, which may cause excessive pressure. In case of fault, the compressor should be shut down in time to avoid compressor overload, first pipeline rupture, or damage to other key components.

[0094] In some embodiments, the pressure-sensing port 103 is connected to the first pipeline, and the pressure in the first pipeline is the same as the pressure at the pressure-sensing port 103. When the pressure in the first pipeline exceeds a preset pressure value, the pressure-sensing element will deform or move, and at the same time, the pressure-sensing element will drive the moving part 30 to move. The moving part 30 will drive the first electrical connection part 41 to move, thereby changing the relative position of the first electrical connection part 41 and the second electrical connection part 42, so that the first electrical connection part 41 and the second electrical connection part 42 switch from a contact state to a separation state, or switch the first electrical connection part 41 and the second electrical connection part 42 from a separation state to a contact state. At this time, the electrical connection relationship between the first electrical connection part 41 and the second electrical connection part 42 has changed. At this time, the pressure switch 1 can transmit or directly receive a signal that the pressure in the first pipeline exceeds the preset pressure value, thereby enabling the pressure switch 1 to send a compressor stop signal, so that the air conditioner controls the compressor to stop working, avoiding the danger caused by the compressor continuing to work.

[0095] Of course, the pressure switch 1 can also be connected to the second pipeline. When the pressure in the second pipeline reaches the preset pressure value, the first electrical connection part 41 and the second electrical connection part 42 switch to the contact state or the separation state, so that the pressure switch 1 sends a compressor stop signal. The principle logic is the same as described above, and will not be elaborated on here.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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 switch, characterized in that, include: The housing has a pressure-sensing port; A pressure-sensing element is disposed within the housing and defines a receiving cavity with the housing. The pressure-sensing element separates the receiving cavity from the pressure-sensing port. The pressure-sensing element is configured to deform or move under pressure. A movable element is disposed within the receiving cavity and moves under the drive of the pressure-sensing element; A first electrical connection and a second electrical connection are disposed within the receiving cavity and arranged in a horizontal direction. The first electrical connection is adapted to move under the action of the moving member to switch to a contact state or a separation state with the second electrical connection.

2. The pressure switch according to claim 1, characterized in that, Also includes: A first wiring portion and a second wiring portion are disposed within the receiving cavity. The first wiring portion is electrically connected to the first electrical connection portion, and the second wiring portion is electrically connected to the second electrical connection portion. An elastic arm is disposed within the receiving cavity and electrically connected between the first wiring portion and the first electrical connection portion. The elastic arm is adapted to undergo elastic deformation under the action of the moving member to drive the first electrical connection portion to move.

3. The pressure switch according to claim 2, characterized in that, When the pressure switch is in its initial state, the first electrical connection and the second electrical connection are in contact. The elastic arm is adapted to undergo elastic deformation under the action of the moving member, so as to drive the first electrical connection and the second electrical connection to switch to a separated state. or, When the pressure switch is in its initial state, the first electrical connection and the second electrical connection are in a separated state. The elastic arm is adapted to undergo elastic deformation under the action of the moving member, so as to drive the first electrical connection and the second electrical connection to switch to a contact state.

4. The pressure switch according to claim 2, characterized in that, The elastic arm has a mating part, and during the movement of the moving member, the moving member slides with the mating part to drive the first electrical connection part to move at least along the horizontal direction.

5. The pressure switch according to claim 4, characterized in that, The mating part has a first guide surface, and the moving part has a second guide surface. The first guide surface and the second guide surface extend in the same direction and slide together. The extension direction of the first guide surface is set at an acute angle to the horizontal direction.

6. The pressure switch according to claim 4, characterized in that, The movable member is movable in the vertical direction and is disposed opposite to the mating part in the vertical direction. The elastic arm includes: The first extension extends along the horizontal direction and one end is connected to the first wiring portion; The second extension extends along the vertical direction, with one end connected to the first electrical connection and the other end connected to the other end of the first extension. The mating portion is located on the side of the second extension portion that is opposite to the first extension portion in the horizontal direction.

7. The pressure switch according to claim 2, characterized in that, Also includes: A first connecting arm, one end of which is fixed inside the housing, and the other end of which extends into the receiving cavity to connect with the elastic arm; And / or, The second connecting arm has one end fixed inside the housing and the other end extending into the receiving cavity to connect with the second electrical connection part.

8. The pressure switch according to claim 7, characterized in that, The housing includes: The pressure-sensing port is located in the first housing portion; The second housing portion and the pressure sensing element are located within the first housing portion and together define the receiving cavity. The first housing portion and the second housing portion are connected by potting compound, which encapsulates the first wiring portion and the second wiring portion.

9. The pressure switch according to claim 1, characterized in that, The cavity is provided with a guide seat, the guide seat has a guide channel, and the moving part slides in conjunction with the guide channel.

10. The pressure switch according to any one of claims 1-9, characterized in that, The housing also has a pressure-sensing cavity, which is located on the side of the pressure-sensing element away from the receiving cavity, and the pressure-sensing cavity is connected to the pressure-sensing port.

11. The pressure switch according to claim 10, characterized in that, The pressure switch also includes: A connecting pipe, one end of which is connected to the pressure-sensing port, and the other end of which is adapted to be connected to the pipeline to be tested.

12. The pressure switch according to any one of claims 1-9, characterized in that, The pressure-sensing element includes a pressure-sensing diaphragm that separates the pressure-sensing port from the receiving cavity.

13. An air conditioner, characterized in that, Includes the pressure switch according to any one of claims 1-12.

14. The air conditioner according to claim 13, characterized in that, The air conditioner includes a compressor, an evaporator, and a condenser. The exhaust port of the compressor and the condenser are connected by a first pipe, and the intake port of the compressor and the evaporator are connected by a second pipe. The pressure switch is connected to the first pipeline. When the pressure in the first pipeline reaches a preset pressure value, the first electrical connection and the second electrical connection switch to a contact state or a separation state, so that the pressure switch sends a compressor stop signal.

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