Compressors and their control methods

Abstract

This invention discloses a compressor and its control method, belonging to the field of compressor pump technology. The compressor includes an upper housing and a terminal assembly. The upper housing includes a flat portion and a connecting post. The terminal assembly includes a connecting seat, a temperature sensor, and a sealing gasket. The connecting seat has a mating hole, and the connecting post passes through the mating hole and positions the connecting seat on the upper housing. The temperature sensor is disposed on the connecting seat and has a temperature-sensing surface that contacts and mates with the flat portion for detecting the temperature of the upper housing. The sealing gasket includes a first support portion disposed between the connecting seat and the upper housing, surrounding the temperature sensor. According to the compressor of this embodiment, the flat portion mates with the temperature-sensing surface of the temperature sensor, which improves the detection accuracy of the temperature sensor.

Description

Technical Field

[0001] This invention relates to the field of compression pumps, and particularly to medium-sized compressors and their control methods. Background Technology

[0002] In HVAC equipment using related technologies, the compressor and control board are connected via connecting cables to achieve compressor operation and control. To ensure operational reliability, an additional temperature sensing device is required to monitor the compressor casing temperature. However, the temperature sensing devices used in related technologies have low accuracy in detecting the compressor casing temperature. Summary of the Invention

[0003] One objective of this invention is to provide a compressor and its control method, which improves the detection accuracy of the temperature sensor by providing a flat portion on the upper housing and using surface contact with the temperature sensing surface of the temperature sensor.

[0004] According to an embodiment of the present invention, a compressor includes an upper housing and a terminal assembly. The upper housing includes a flat portion and a connecting post. The terminal assembly includes a connecting seat, a temperature sensor, and a sealing gasket. The connecting seat has a mating hole, and the connecting post passes through the mating hole and positions the connecting seat on the upper housing. The temperature sensor is disposed on the connecting seat and has a temperature-sensing surface that contacts and engages with the flat portion for detecting the temperature of the upper housing. The sealing gasket includes a first support portion, which is disposed between the connecting seat and the upper housing and surrounds the temperature sensor.

[0005] According to an embodiment of the present invention, the compressor is provided with a flat portion that mates with the temperature sensing surface of the temperature sensor, which can improve the detection accuracy of the temperature sensor.

[0006] In addition, the compressor according to the above embodiments of the present invention may also have the following additional technical features:

[0007] In some embodiments, the ratio of the center distance C1 between the temperature sensor and the mating hole to the maximum outer diameter D1 of the temperature sensing surface satisfies: 1 < C1 / D1 ≤ 1.6.

[0008] In some embodiments, the ratio of the minimum distance C2 between the axis of the temperature sensor and the edge of the flat portion to the maximum outer diameter D1 of the temperature sensing surface satisfies: 0.6 ≤ C2 / D1.

[0009] In some embodiments, the connector is provided with a mounting groove, and at least a portion of the temperature sensor is disposed in the mounting groove.

[0010] In some embodiments, the sealing gasket further includes a protrusion disposed in the mounting groove and between the temperature sensor and the connecting seat along the axis of the temperature sensor.

[0011] In some embodiments, the height dimension of the first support is L1, the height dimension of the protrusion is L2, the height dimension of the mounting groove is L3, and the height dimension of the temperature sensor is L4, wherein L1+L3<L2+L4.

[0012] In some embodiments, 0.9 ≤ (L1+L3) / (L2+L4) < 1.

[0013] In some embodiments, the connector has a first positioning groove opposite to the flat portion, the first positioning groove being disposed around the temperature sensor, and the sealing gasket further includes a first positioning rib connected to the first support portion, the first positioning rib being disposed in the first positioning groove.

[0014] In some embodiments, the connecting seat further has a first limiting groove opposite to the flat portion, the first limiting groove being disposed on the side of the temperature sensor, and the sealing gasket further includes a first limiting block, the first limiting block being connected to the first support portion, and the first limiting block being disposed in the first limiting groove.

[0015] In some embodiments, the flat portion includes a first side, a second side, and a third side. The first side and the second side are located on both sides of the axis of the upper housing. The third side extends circumferentially along the upper housing. The two ends of the third side connect the first side and the second side. The flat portion includes a flat surface enclosed by the first side, the second side, and the third side. The connecting post is located on the flat surface, and the temperature sensor is in contact with the flat surface.

[0016] In some embodiments, the distance between the intersection of the first side and the second side and the axis of the upper housing is C3, the radius of the third side is R1, the radius of the edge of the upper housing is R2, the distance between the axis of the connecting column and the axis of the upper housing is C4, and the included angle between the first side and the second side is α, wherein 0.7≤R1 / R2≤1; or 0.25≤C3 / R1≤0.6; or 0.32≤C4 / R1≤0.7; or 60°≤α≤180°.

[0017] In some embodiments, the connection between the first side and the third side, and the connection between the second side and the third side, are rounded; and / or, the upper housing further includes an exhaust pipe extending along the axis of the upper housing.

[0018] In some embodiments, the terminal assembly further includes a first wire harness and a second wire harness, which pass through the connector and are electrically connected to the temperature sensor, wherein the cross-sectional area S1 of the conductor in the first wire harness or the second wire harness satisfies: 0.3 mm² ≤ S1 ≤ 1.0 mm².

[0019] In some embodiments, the upper housing further includes a terminal block, the terminal assembly further includes a terminal block disposed within the connector, and the connector has a socket opposite to the terminal block, the terminal block passes through the socket and engages with the terminal block, and the sealing gasket includes a second support portion disposed between the connector and the upper housing, the second support portion surrounding the socket.

[0020] In some embodiments, the connector has a second positioning groove opposite to the flat portion, the second positioning groove being disposed around the insertion hole, and the sealing gasket further includes a second positioning rib connected to the second support portion, the second positioning rib being disposed in the second positioning groove.

[0021] In some embodiments, the connector also has a second limiting groove opposite to the flat portion, the second limiting groove being disposed on the side of the insertion hole, and the sealing gasket further includes a second limiting block, the second limiting block being connected to the second support portion, and the second limiting block being disposed in the second limiting groove.

[0022] In some embodiments, the terminal assembly further includes a third wire harness, a fourth wire harness, and a fifth wire harness, which pass through the connector and are electrically connected to the terminal block. The cross-sectional area S2 of the conductors of the third wire harness, the fourth wire harness, and the fifth wire harness satisfies: 1.3 mm² ≤ S2 ≤ 6.0 mm².

[0023] In some embodiments, the connector is a structure made of PBT material and / or PA66 material; and / or, the connector is integrally injection molded; and / or, the gasket is a structure made of silicone rubber material; and / or, the gasket is integrally molded.

[0024] According to an embodiment of the present invention, a control method for the aforementioned compressor includes: acquiring the resistance value R of the temperature sensor; when the resistance value R is greater than a first preset value, controlling the compressor to execute a temperature protection mode and disconnecting the power supply to the compressor; and when the resistance value R is less than a second preset value, controlling the compressor to execute a normal operation mode, wherein the first preset value is greater than the second preset value.

[0025] The heating, ventilation, and air conditioning equipment according to an embodiment of the present invention includes the aforementioned compressor. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a compressor according to an embodiment of the present invention.

[0027] Figure 2 This is a top view of a compressor according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of a terminal assembly according to an embodiment of the present invention.

[0029] Figure 4 This is a cross-sectional view of a terminal assembly according to an embodiment of the present invention.

[0030] Figure 5 This is a first schematic diagram of a terminal assembly according to another embodiment of the present invention.

[0031] Figure 6 This is a second schematic diagram of a terminal assembly according to another embodiment of the present invention.

[0032] Figure 7 This is a third schematic diagram of a terminal assembly according to another embodiment of the present invention.

[0033] Figure 8 This is a first exploded view of a terminal assembly according to another embodiment of the present invention.

[0034] Figure 9 This is a second exploded view of a terminal assembly according to another embodiment of the present invention.

[0035] Figure 10 This is a first schematic diagram of the upper housing according to an embodiment of the present invention.

[0036] Figure 11 This is a second schematic diagram of the upper housing according to an embodiment of the present invention.

[0037] Figure 12 This is a third schematic diagram of the upper housing according to an embodiment of the present invention.

[0038] Figure 13 This is the fourth schematic diagram of the upper housing according to an embodiment of the present invention.

[0039] Figure 14 This is a schematic diagram of a temperature sensor according to an embodiment of the present invention.

[0040] Figure 15 This is a bottom view of a temperature sensor according to an embodiment of the present invention.

[0041] Figure 16 This is a schematic diagram of a sealing gasket according to an embodiment of the present invention.

[0042] Figure 17It is a curve showing the change of the contact area between the temperature sensor and the flat part as a function of C1 / D1.

[0043] Figure 18 It is a curve of the temperature detected by the temperature sensor changing with the ratio (L1+L3) / (L2+L4), where T is the actual temperature value of the upper shell.

[0044] Figure 19 This is a schematic diagram of a compressor control method according to an embodiment of the present invention.

[0045] Figure label:

[0046] Compressor 100, upper housing 11, flat portion 111, first side 1111, second side 1112, third side 1113, connecting post 112, exhaust pipe 113, terminal post 114, terminal assembly 12, connecting seat 121, mating hole 1211, mounting groove 1212, first positioning groove 1213, first limiting groove 1214, insertion hole 1217, temperature sensor 122, axis 1222 of temperature sensor 122, temperature sensing surface 1221, sealing gasket. 123, First support part 1231, Second support part 1232, Protrusion 1233, First positioning rib 1234, First limiting block 1235, Second positioning rib 1236, Second limiting block 1237, Terminal 124, First wire harness 1251, Second wire harness 1252, Third wire harness 1253, Fourth wire harness 1254, Fifth wire harness 1255, Sixth wire harness 1256, First sleeve 1261, Second sleeve 1262, Nut 13. Detailed Implementation

[0047] In related technologies, HVAC equipment connects the compressor and the control board via connecting cables to achieve compressor operation and control. To ensure operational reliability, an additional temperature sensing device is required to monitor the compressor casing temperature, leading to complex compressor installation and slow production cycle times.

[0048] Therefore, the present invention provides a compressor and a heating and ventilation equipment. The compressor includes an upper housing, which is provided with a connecting post, a terminal post and a flat part. The connecting seat can be provided with a terminal for connecting the compressor body and the controller.

[0049] Embodiments of the present invention are described in detail below, examples of which are illustrated 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0050] like Figures 1 to 5According to an embodiment of the present invention, a compressor 100 includes an upper housing 11 and a terminal assembly 12. The upper housing 11 includes a flat portion 111 and a connecting post 112. The flat portion 111 may be configured to have a flat surface, and the connecting post 112 is configured to position the terminal assembly 12 to the upper housing 11. Figures 3 to 9 The terminal assembly 12 includes a connector 121, a temperature sensor 122, and a sealing gasket 123. The connector 121 is used to position the temperature sensor 122 to the upper housing 11. The temperature sensor 122 is used to detect the temperature of the upper housing 11. The sealing gasket 123 is used to protect the temperature sensor 122, thereby achieving waterproofing, dustproofing, and improving detection accuracy of the temperature sensor 122.

[0051] The connecting seat 121 is provided with a mating hole 1211, and the connecting post 112 passes through the mating hole 1211 and positions the connecting seat 121 on the upper housing 11. One end of the connecting post 112 can be fixedly connected to the shell body of the upper housing 11 and extends in a direction substantially perpendicular to the shell body of the upper housing 11. When the connecting seat 121 is installed on the upper housing 11, the connecting post 112 can be aligned with the mating hole 1211, and the connecting seat 121 can be driven to move toward the upper housing 11. After the upper housing 11 is moved into place, the connecting seat 121 is locked and positioned on the upper housing 11 by using a nut 13 or other positioning element to connect with the connecting post 112. A temperature sensor 122 is disposed on a connecting base 121. The temperature sensor 122 has a temperature-sensing surface 1221, which can cooperate with a flat portion 111 for detecting the temperature of the upper housing 11. The temperature-sensing surface 1221 can make contact with the flat portion 111, meaning that at least a portion of the temperature-sensing surface 1221 is in contact with the flat portion 111. The sealing gasket 123 includes a first support portion 1231, which is disposed between the connecting base 121 and the upper housing 11. The first support portion 1231 surrounds the temperature sensor 122, and can achieve waterproofing and dustproofing of the temperature sensor 122, preventing dust, water, and other impurities from entering the vicinity of the temperature-sensing surface 1221 and affecting the detection accuracy of the temperature sensor 122. This can extend the service life of the temperature sensor 122 and improve its detection accuracy.

[0052] According to an embodiment of the compressor 100 of the present invention, a flat portion 111 is provided on the upper housing 11, and the flat portion 111 is configured to make surface contact with the temperature sensing surface 1221 of the temperature sensor 122, thereby optimizing the heat conduction effect between the temperature sensor 122 and the upper housing 11, improving the accuracy of the temperature sensor 122 in detecting the temperature of the upper housing 11, and facilitating the control of the compressor 100. In addition, by providing a sealing gasket 123, the temperature sensor 122 can be made waterproof and dustproof, preventing water and other impurities from entering the vicinity of the temperature sensor 122 and affecting the temperature detection of the upper housing 11 by the temperature sensor 122, thereby further improving the accuracy of the temperature detection of the upper housing 11.

[0053] Compressor 100 according to Figure 1 After assembly, the surface of the upper housing 11 is rough, and the deformation of the sealing gasket 123 plays a sealing role, which can make the terminal assembly 12 waterproof and dustproof to reach IP54.

[0054] The compressor 100 typically has an upper housing 11 that is arc-shaped. The outer surface of the upper housing 11 may have an arc-shaped surface and a flat portion 111. The flat portion 111 may be convex relative to the arc-shaped surface and has a planar structure. Furthermore, a connecting seat 121 may be provided on the flat portion 111 of the upper housing 11 and fixed to the upper housing 11 by a nut 13 or the like. Additionally, the connecting seat 121 may have a mounting groove 1212, and at least a portion of the temperature sensor 122 may be disposed within the mounting groove 1212.

[0055] like Figure 4 In some embodiments, the connector 121 is provided with a mounting groove 1212, and at least a portion of the temperature sensor 122 is disposed in the mounting groove 1212.

[0056] In order to increase the contact area between the temperature sensor 122 and the flat portion 111 and improve the detection accuracy of the temperature sensor 122, the present invention may include, but is not limited to, the following embodiments and combinations thereof.

[0057] Example 1, combined with Figure 3 , Figure 14 and Figure 15 The ratio of the center distance C1 between the temperature sensor 122 and the mating hole 1211 to the maximum outer diameter D1 of the temperature sensing surface 1221 satisfies the condition: 1 < C1 / D1 ≤ 1.6. For example, the ratio C1 / D1 can be set to 1.1, 1.25, 1.3, 1.45, 1.5, or 1.6, etc. The center distance C1 between the temperature sensor 122 and the mating hole 1211 refers to the distance between the axis 1222 of the temperature sensor 122 and the axis of the mating hole 1211; or the distance between the center of the temperature sensing surface 1221 and the center of the mating hole 1211. This allows the temperature sensor 122 to stably mate with the flat portion 111 of the upper housing 11. When the temperature sensing surface 1221 of the temperature sensor 122 is completely in contact with the flat portion 111, the contact area between the temperature sensor 122 and the upper housing 11 can be equal to the area S of the temperature sensing surface 1221, at which point the temperature sensing effect is optimal. Figure 17The graph shows the change in the contact area between the temperature sensor and the flat portion as a function of C1 / D1. The vertical axis represents the contact area between the temperature sensor and the upper housing, and the horizontal axis represents the ratio C1 / D1. When C1 / D1 = 2.16, the contact area between the temperature sensor 122 and the flat portion 111 of the upper housing 11 is only S / 2. At this time, the detection accuracy of the temperature sensor 122 is significantly affected. When C1 / D1 > 2.16, as the ratio C1 / D1 increases, the contact area between the temperature sensor 122 and the flat portion 111 of the upper housing 11 will continue to decrease, affecting the temperature detection of the temperature sensor 122. When C1 / D1 ≤ 1, dimensional interference may occur in the horizontal direction between the temperature sensor 122 and the connecting post 112 of the upper housing 11. In this invention, 1 < C1 / D1 ≤ 1.6, which provides sufficient space for the first support portion 1231 and improves its sealing performance. In addition, it can also increase the contact area between the temperature sensor 122 and the flat portion 111, thereby improving the temperature measurement accuracy and stability of the temperature sensor 122.

[0058] In addition, the upper housing 11 may also include an exhaust pipe 113. The upper housing 11 may be generally circular, and the exhaust pipe 113 may be configured to extend along the axis of the upper housing 11. The temperature sensor 122 and the connecting seat 121 may be arranged on the side of the exhaust pipe 113.

[0059] Example 2, combined with Figure 2 and Figure 3 The minimum distance C2 between the axis 1222 of the temperature sensor 122 and the edge of the flat portion 111 (refer to) Figure 2 The ratio of C2 / D1 to the maximum outer diameter D1 of the temperature sensing surface 1221 satisfies: 0.6 ≤ C2 / D1. For example, C2 / D1 can be set to 0.6, 1.25, 1.3, 1.45, 1.5, or 1.6, etc. This ensures that the temperature sensing surface 1221 and the flat portion 111 have the maximum contact area, effectively improving the detection accuracy of the temperature sensor 122. In addition, it also allows the first support portion 1231 to cooperate with the flat portion 111 to improve the sealing effect, thereby further improving the detection accuracy of the temperature sensor 122.

[0060] Example 3, as Figure 10The flat portion 111 includes a first side 1111, a second side 1112, and a third side 1113. The first side 1111 and the second side 1112 are located on both sides of the axis of the upper housing 11. The third side 1113 extends circumferentially along the upper housing 11. The two ends of the third side 1113 are connected to the first side 1111 and the second side 1112. The flat portion 111 includes a flat surface enclosed by the first side 1111, the second side 1112, and the third side 1113. The connecting post 112 is located on the flat surface, and the temperature sensor 122 is in contact with the flat surface. The flat surface enclosed by the first side 1111, the second side 1112 and the third side 1113 can stably cooperate with the temperature sensor 122, improving the detection accuracy of the temperature sensor 122. Setting the connecting post 112 on the flat surface can improve the stability of the connection between the connecting seat 121 and the upper housing 11, thereby further improving the detection accuracy of the temperature sensor 122.

[0061] In addition, the compressor is located in a high-pressure environment, with a typical maximum pressure of 4.2 MPa. The purpose of the recessed part on the upper housing is to improve the pressure resistance. This design avoids the flat part 111 from having an excessively large area, which would reduce the strength of the upper housing and fail to meet the compressor's pressure resistance reliability requirements.

[0062] Optionally, the first side 1111 and the second side 1112 can be straight sides distributed on both sides of the axis of the upper shell 11, and the third side 1113 can be an arc side centered on the axis of the upper shell 11. The distance between the intersection of the first side 1111 and the second side 1112 and the axis of the upper shell 11 is C3, the radius of the third side 1113 is R1, the radius of the edge of the upper shell 11 is R2, the distance between the axis of the connecting column 112 and the axis of the upper shell 11 is C4, and the included angle between the first side 1111 and the second side 1112 is α.

[0063] Specifically, the following conditions can be met: 0.7≤R1 / R2≤1. The third side 1113 is spaced apart from the edge of the upper housing 11, allowing for a smooth transition between the flat portion 111 and the edge of the upper housing 11. This facilitates the molding of the upper housing 11 and avoids stress concentration at the edges, improving the structural stability and service life of the upper housing 11. Additionally, the following conditions can be met: 0.25≤C3 / R1≤0.6; or 0.32≤C4 / R1≤0.7; or 60°≤a≤180°. A suitable flat portion 111 can be provided on the upper housing 11 to facilitate a stable fit between the connecting seat 121 and other components, enabling stable installation of the connecting seat 121 on the upper housing 11, improving the detection accuracy of the temperature sensor 122, and reducing the material usage of the upper housing 11, thus lowering costs.

[0064] Optionally, the connection between the first side 1111 and the third side 1113, and the connection between the second side 1112 and the third side 1113, are rounded. This facilitates the forming of the flat portion 111 and allows for surface treatment to improve its surface flatness, thereby achieving a stable fit between the temperature sensor 122 and the flat portion 111. The upper housing 11 may also include an exhaust pipe 113, which extends along the axis of the upper housing 11. This facilitates the exhaust of the compressor 100 and improves its performance.

[0065] Of course, the above description is only some embodiments of the present invention and is not a limitation on the scope of protection of the present invention. In addition, the compressor 100 of the present invention may also have the following technical features.

[0066] like Figure 4 In some embodiments, the connector 121 is provided with a mounting groove 1212, at least a portion of the temperature sensor 122 is disposed in the mounting groove 1212, and the sealing gasket 123 further includes a protrusion 1233, which is disposed in the mounting groove 1212 and positioned between the temperature sensor 122 and the connector 121 along the axis 1222 of the temperature sensor 122. When the connector 121 is installed on the upper housing 11, the temperature sensor 122 can contact the flat portion 111. However, since it is difficult to ensure that the flat portion 111 is completely flat in actual production and processing, the sealing gasket 123 is used to ensure that the temperature sensor 122 is tightly fitted to the upper housing 11. The protrusion 1233 can elastically stop the temperature sensor 122 and apply a force toward the flat part 111 to the temperature sensor 122, thereby achieving a stable fit between the temperature sensor 122 and the flat part 111. In addition, the first support part 1231 can seal the mounting groove 1212, thus preventing dust and other impurities from entering the mounting groove 1212 and optimizing the protection effect on the temperature sensor 122.

[0067] like Figure 4 The height dimension of the first support portion 1231 is L1, the height dimension of the protrusion 1233 is L2, the height dimension of the mounting groove 1212 is L3, and the height dimension of the temperature sensor 122 is L4, wherein L1 + L3 < L2 + L4. The first support portion 1231 and the protrusion 1233 of the sealing gasket 123 are compressed in the height direction. The deformation of the first support portion 1231 in the height direction compensates for the installation difference of the temperature sensor 122 caused by the flatness of the flat portion 111 of the upper housing 11. In addition, while the protrusion 1233 of the sealing gasket 123 is compressed, it exerts a downward pressure on the temperature sensor 122, ensuring that the temperature sensor 122 is tightly fitted to the upper housing 11 in the height direction. Combined with the aforementioned embodiment where 1 < C1 / D1 ≤ 1.6, sufficient contact between the temperature sensor and the flat portion is ensured in both the height and horizontal directions, thereby improving detection accuracy.

[0068] Furthermore, the aforementioned height dimensions of the first support portion 1231 (L1) and the protrusion 1233 (L2) refer to the height dimensions of the terminal assembly 12 before installation, or the height dimensions of the sealing gasket 123 before compression. In the assembled compressor 100, after the terminal assembly 12 is removed from the upper housing, the sealing gasket 123 will partially recover under elastic deformation. Therefore, the height dimension of the first support portion 1231 after the terminal assembly 12 is removed can be approximated as the aforementioned dimension L1, and the height dimension of the protrusion 1233 can be approximated as the aforementioned dimension L2.

[0069] like Figure 18 This is a graph showing the change in the temperature detected by the temperature sensor as a function of the ratio (L1+L3) / (L2+L4), with T representing the actual temperature of the upper housing. The horizontal axis represents the ratio (L1+L3) / (L2+L4), and the vertical axis represents the temperature detected by the temperature sensor. As can be seen from the attached graph, when the ratio (L1+L3) / (L2+L4) ≥ 1, the detection accuracy of the temperature sensor will decrease. Furthermore, setting the ratio (L1+L3) / (L2+L4) to be greater than 0.9 can prevent damage to the sealing gasket 123 due to excessive compression.

[0070] The connecting seat 121 has a mating surface opposite to the flat portion 111, and the mounting groove 1212 has a stop surface corresponding to the protrusion 1233, which abuts against the protrusion 1233. The height dimension of the first support portion 1231 refers to the dimension of the first support portion 1231 along the axis 1222 parallel to the temperature sensor 122; or, in other words, the height dimension of the first support portion 1231 refers to the height of the first support portion 1231 relative to the mating surface. The height of the protrusion 1233 refers to the dimension of the protrusion 1233 along the axis 1222 of the temperature sensor 122. The height dimension of the mounting groove 1212 refers to the depth dimension of the mounting groove 1212; or, in other words, the height dimension of the mounting groove 1212 refers to the distance between the mating surface and the stop surface. The height dimension of the temperature sensor 122 refers to the dimension of the temperature sensor 122 along its axis, or in other words, the distance from the temperature sensing surface 1221 to the surface of the temperature sensor 122 abutting against the protrusion 1233.

[0071] like Figure 4 and Figure 16In some embodiments, the connecting seat 121 has a first positioning groove 1213 opposite to the flat portion 111. The first positioning groove 1213 is arranged around the temperature sensor 122. The sealing gasket 123 also includes a first positioning rib 1234, which is connected to the first support portion 1231 and is located in the first positioning groove 1213. The cooperation between the first positioning rib 1234 and the first positioning groove 1213 can stably connect the first support portion 1231 and the connecting seat 121, thereby improving the stability of the connection structure between the sealing gasket 123 and the connecting seat 121 and preventing the sealing gasket 123 from falling off the connecting seat 121. In addition, the sealing gasket 123 can be positioned on the connecting seat 121 before the connecting seat 121 is installed on the upper housing 11, and then the connecting seat 121 with the sealing gasket 123 installed can be installed on the upper housing 11. This simplifies the assembly process of the compressor 100 and improves the assembly efficiency of the compressor 100. In addition, the first positioning rib 1234 can be arranged around the temperature sensor 122, so as to better seal the gap between the first support part 1231 and the connecting part, so as to further improve the sealing performance of the mounting groove 1212 and further improve the detection accuracy of the temperature sensor 122.

[0072] like Figure 4 and Figure 16 In some embodiments, the connecting seat 121 also has a first limiting groove 1214 opposite to the flat portion 111. The first limiting groove 1214 is located on the side of the temperature sensor 122. The sealing gasket 123 also includes a first limiting block 1235, which is connected to the first support portion 1231 and is located in the first limiting groove 1214. The first support 1231 and the connecting seat 121 can be stably connected by the cooperation of the first limiting block 1235 and the first limiting groove 1214, so as to improve the stability of the connection structure between the sealing gasket 123 and the connecting seat 121 and prevent the sealing gasket 123 from falling off the connecting seat 121. In addition, the sealing gasket 123 can be positioned on the connecting seat 121 before the connecting seat 121 is installed on the upper housing 11, and then the connecting seat 121 with the sealing gasket 123 installed can be installed on the upper housing 11. In this way, the assembly process of the compressor 100 can be simplified and the assembly efficiency of the compressor 100 can be improved.

[0073] In addition, in some embodiments of the present invention, the connecting seat 121 may also be configured to include the aforementioned first positioning groove 1213 and first limiting groove 1214, and the sealing gasket 123 may also include the aforementioned first positioning rib 1234 and first limiting block 1235. The first limiting block 1235 may be disposed outside the first positioning rib 1234, and the first limiting block 1235 may include a stepped structure disposed along the axial direction of the temperature sensor 122. The first limiting groove 1214 may be configured as a structure corresponding to the first limiting block 1235. Through the above configuration, the stability and sealing performance of the connection structure between the sealing gasket 123 and the connecting seat 121 can be further improved.

[0074] like Figure 5 In some embodiments, the terminal assembly 12 further includes a first wiring harness 1251 and a second wiring harness 1252, which pass through the connector 121 and are electrically connected to the temperature sensor 122. The cross-sectional area S1 of the conductor in the first wiring harness 1251 or the conductor in the second wiring harness 1252 satisfies: 0.3 mm² ≤ S1 ≤ 1.0 mm². For example, the cross-sectional area S1 can be set to 0.3 mm², 0.5 mm², 0.7 mm², 0.85 mm², or 1.0 mm², which can improve the detection accuracy of the temperature sensor 122 and the stability of signal transmission, thereby achieving accurate detection of the temperature of the upper housing 11.

[0075] In addition, the terminal assembly 12 also includes a first sleeve 1261, through which a first wire harness 1251 and a second wire harness 1252 pass.

[0076] like Figure 3 , Figure 7 , Figures 10 to 13In some embodiments, the upper housing 11 further includes a terminal block 114, and the terminal assembly 12 further includes a terminal block 124 disposed within the connector 121. By disposing of the terminal block 124 within the connector 121, the terminal block 124 can be waterproofed and dustproofed, improving its stability and safety. The connector 121 has a socket 1217 opposite to the terminal block 124. The terminal block 114 passes through the socket 1217 and mates with the terminal block 124, facilitating electrical connection between the terminal block 114 and the terminal block 124. The sealing gasket 123 includes a second support portion 1232, which is disposed between the connector 121 and the upper housing 11, surrounding the socket 1217. The second support portion 1232 can be used to protect the structure between the terminal block 114 and the socket 1217, improving safety. In this invention, the temperature sensor 122 and the wiring terminal 124 are integrated into the connector 121 to ensure that the temperature sensor 122 is in close contact with the upper housing 11 in both horizontal and vertical directions, so as to monitor the housing temperature of the compressor 100, improve the operational reliability of the compressor 100, and the structure is simple, easy to install, and suitable for large-scale production applications.

[0077] like Figure 16 In some embodiments, the connecting seat 121 has a second positioning groove (not shown) opposite to the flat portion 111. The second positioning groove is arranged around the insertion hole 1217. The sealing gasket 123 also includes a second positioning rib 1236, which is connected to the second support portion 1232 and is located in the second positioning groove. The cooperation between the second positioning rib 1236 and the second positioning groove can stably connect the second support portion 1232 and the connecting seat 121, thereby improving the stability of the connection structure between the sealing gasket 123 and the connecting seat 121 and preventing the sealing gasket 123 from falling off the connecting seat 121. In addition, the sealing gasket 123 can be positioned on the connecting seat 121 before the connecting seat 121 is installed on the upper housing 11, and then the connecting seat 121 with the sealing gasket 123 installed can be installed on the upper housing 11. This simplifies the assembly process of the compressor 100 and improves the assembly efficiency of the compressor 100. In addition, the second positioning rib 1236 can be arranged around the insertion hole 1217, so as to better seal the gap between the second support part 1232 and the connecting part, so as to further improve the sealing performance of the mounting groove 1212 and further improve the detection accuracy of the insertion hole 1217.

[0078] like Figure 16In some embodiments, the connecting seat 121 also has a second limiting groove (not shown in the figure) opposite to the flat portion 111. The second limiting groove is located on the side of the insertion hole 1217. The sealing gasket 123 also includes a second limiting block 1237, which is connected to the second support portion 1232 and is located in the second limiting groove. The cooperation between the second limiting block 1237 and the second limiting groove can stably connect the second support portion 1232 and the connecting seat 121, thereby improving the stability of the connection structure between the sealing gasket 123 and the connecting seat 121 and preventing the sealing gasket 123 from falling off the connecting seat 121. In addition, the sealing gasket 123 can be positioned on the connecting seat 121 before the connecting seat 121 is installed on the upper housing 11, and then the connecting seat 121 with the sealing gasket 123 installed can be installed on the upper housing 11. This simplifies the assembly process of the compressor 100 and improves the assembly efficiency of the compressor 100.

[0079] In addition, in some embodiments of the present invention, the connecting seat 121 may also be configured to include the aforementioned second positioning groove and second limiting groove, and the sealing gasket 123 may also include the aforementioned second positioning rib 1236 and second limiting block 1237. The second limiting block 1237 may be disposed outside the second positioning rib 1236, and the second limiting block 1237 may include a stepped structure arranged along the axial direction of the insertion hole 1217. The second limiting groove may be configured as a structure corresponding to the second limiting block 1237. Through the above configuration, the stability and sealing performance of the connection structure between the sealing gasket 123 and the connecting seat 121 can be further improved.

[0080] In some embodiments, the terminal assembly 12 further includes a third wire harness 1253, a fourth wire harness 1254, and a fifth wire harness 1255, which pass through the connector 121 and are electrically connected to the terminal block 124. The cross-sectional area S2 of the conductor of the third wire harness 1253, the fourth wire harness 1254, or the fifth wire harness 1255 satisfies the following condition: 1.3 mm² ≤ S2 ≤ 6.0 mm². For example, S2 can be set to 1.3 mm², 2.4 mm², 3.3 mm², 5 mm², or 6 mm², which can improve the safety and stability of the terminal block 124.

[0081] In one example, terminal assembly 12 includes a third wire harness 1253, a fourth wire harness 1254, a fifth wire harness 1255, and a sixth wire harness 1256. The third wire harness 1253, the fourth wire harness 1254, the fifth wire harness 1255, and the sixth wire harness 1256 can be U, V, and W three-phase power lines and ground wires, respectively. The wire harness gauge is 14AWG (AWG, or American wire gauge). The conductor of the third wire harness 1253, the fourth wire harness 1254, the fifth wire harness 1255, or the sixth wire harness 1256 can be configured with a rated current carrying capacity of 18A and a cross-sectional area S2 of 2.08 square millimeters. Terminal assembly 12 also includes a first wire harness 1251 and a second wire harness 1252. The wire harness gauge is 20AWG. The conductor of the first wire harness 1251 and the second wire harness 1252 can be configured with a rated current carrying capacity of 7A and a cross-sectional area S1 of 0.5189 square millimeters.

[0082] In another example, terminal assembly 12 includes a third wire harness 1253, a fourth wire harness 1254, a fifth wire harness 1255, and a sixth wire harness 1256, wherein the third wire harness 1253, the fourth wire harness 1254, the fifth wire harness 1255, and the sixth wire harness 1256 can be respectively U, V, W three-phase power lines and ground wires, and the wire harness gauge is 16AWG. The conductor of the third wire harness 1253, the fourth wire harness 1254, the fifth wire harness 1255, or the sixth wire harness 1256 can be set to: rated current carrying capacity of 13A, and cross-sectional area S2 of 1.31 square millimeters. Terminal assembly 12 also includes a first wire harness 1251 and a second wire harness 1252, the wire harness gauge is 22AWG, and the conductor of the first wire harness 1251 and the second wire harness 1252 can be set to: rated current carrying capacity of 4A, and cross-sectional area S1 of 0.3247 square millimeters.

[0083] In addition, the terminal assembly 12 also includes a second sleeve 1262, and a third wire harness 1253, a fourth wire harness 1254, a fifth wire harness 1255 and a sixth wire harness 1256 passing through the second sleeve 1262.

[0084] In some embodiments, the connector 121 is a structure made of PBT and / or PA66 materials. PBT is polybutylene terephthalate (PBT), a translucent or opaque, crystalline thermoplastic polyester resin, also known as polytetramethylene terephthalate. PA66 is polyhexamethylene adipamide, commonly known as nylon-66, a thermoplastic resin generally produced by the condensation polymerization of adipic acid and hexamethylenediamine. It is insoluble in common solvents, only soluble in m-benzophenol, etc. It has high mechanical strength and hardness, and high rigidity. It can be used as an engineering plastic, in mechanical parts such as gears and lubricating bearings, to replace non-ferrous metal materials in machine housings, automobile engine blades, etc., and can also be used to make synthetic fibers.

[0085] The material of the connector 121 improves its insulation, effectively protecting the terminal 124 and the temperature sensor 122, and facilitates its molding. The connector 121 is integrally injection molded, allowing it to easily enclose the temperature sensor 122 and the terminal 124. The sealing gasket 123 may be made of silicone rubber and can be integrally molded. This improves the sealing performance of the gasket 123 and facilitates its molding. It also enables quick and stable assembly of the gasket 123 and the connector 121.

[0086] like Figure 19 According to an embodiment of the present invention, the control method for the aforementioned compressor 100 includes:

[0087] The resistance value R of the temperature sensor 122 is obtained. When the resistance value R is greater than the first preset value, the compressor 100 is controlled to execute the temperature protection mode. When the resistance value R is less than the second preset value, the compressor 100 is controlled to execute the normal operation mode.

[0088] In this system, the first preset value is greater than the second preset value. The temperature protection mode includes disconnecting the power supply to the compressor 100, while the normal operation mode includes connecting the power supply to the compressor 100. When the resistance value R of the temperature sensor 122 reaches the first preset value, the compressor 100 may be operating under overload. To further prevent malfunctions, the compressor 100 can be controlled to execute the temperature protection mode. When the resistance value R of the temperature sensor 122 reaches the second preset value, the compressor 100 can operate normally, and its operation can be controlled. This improves the stability of the compressor 100's operation, facilitates timely fault diagnosis, keeps the compressor 100 operating within an appropriate range, avoids compressor 100 malfunctions, prevents frequent start-stop cycles, and enhances the overall stability of the compressor 100's operation.

[0089] The first preset value can be set to 100Ω, and the second preset value can be set to 1Ω. Specifically, the control method includes: detecting the resistance value R at both ends of the second connecting wire group; when R>100Ω, triggering temperature protection and disconnecting the power supply; when R<1Ω, resetting the electronic control and allowing it to operate normally.

[0090] The heating, ventilation, and air conditioning equipment according to an embodiment of the present invention includes the aforementioned compressor 100.

[0091] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0093] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0094] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0096] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A compressor (100), characterized in that, The compressor (100) includes an upper housing (11) and a terminal assembly (12). The upper housing (11) includes a flat portion (111) and a connecting post (112). The terminal assembly (12) includes: A connecting seat (121) is provided with a mating hole (1211) and a mounting groove (1212). The connecting post (112) passes through the mating hole (1211) and positions the connecting seat (121) on the upper housing (11). A temperature sensor (122) is disposed on the connecting seat (121), at least a portion of the temperature sensor (122) is disposed on the mounting groove (1212), and the temperature sensor (122) has a temperature sensing surface (1221) that contacts and cooperates with the surface of the flat portion (111) for the temperature sensor (122) to detect the temperature of the upper housing (11); A sealing gasket (123) includes a first support portion (1231) disposed between the connecting seat (121) and the upper housing (11), and the first support portion (1231) surrounds the temperature sensor (122); The ratio of the center distance C1 between the temperature sensor (122) and the mating hole (1211) to the maximum outer diameter D1 of the temperature sensing surface (1221) satisfies: 1 < C1 / D1 ≤ 1.6; the ratio of the minimum distance C2 between the axis (1222) of the temperature sensor (122) and the edge of the flat portion (111) to the maximum outer diameter D1 of the temperature sensing surface (1221) satisfies: 0.6 ≤ C2 / D1. The sealing gasket (123) further includes a protrusion (1233), which is disposed in the mounting groove (1212) and along the axis (1222) of the temperature sensor (122) between the temperature sensor (122) and the connecting seat (121). The height dimension of the first support (1231) is L1, the height dimension of the protrusion (1233) is L2, the height dimension of the mounting groove (1212) is L3, and the height dimension of the temperature sensor (122) is L4, wherein L1+L3<L2+L4, and 0.9≤(L1+L3) / (L2+L4)<1.

2. The compressor (100) according to claim 1, characterized in that, The connecting seat (121) has a first positioning groove (1213) opposite to the flat portion (111), the first positioning groove (1213) is arranged around the temperature sensor (122), and the sealing gasket (123) further includes a first positioning rib (1234), the first positioning rib (1234) is connected to the first support portion (1231), and the first positioning rib (1234) is disposed in the first positioning groove (1213); And / or, the connecting seat (121) also has a first limiting groove (1214) opposite to the flat portion (111), the first limiting groove (1214) being disposed on the side of the temperature sensor (122), and the sealing gasket (123) further includes a first limiting block (1235), the first limiting block (1235) being connected to the first support portion (1231), and the first limiting block (1235) being disposed in the first limiting groove (1214).

3. The compressor (100) according to claim 1, characterized in that, The flat portion (111) includes a first side (1111), a second side (1112), and a third side (1113). The first side (1111) and the second side (1112) are located on both sides of the axis of the upper housing (11). The third side (1113) extends circumferentially along the upper housing (11). The two ends of the third side (1113) connect the first side (1111) and the second side (1112). The flat portion (111) includes a flat surface enclosed by the first side (1111), the second side (1112), and the third side (1113). The connecting post (112) is located on the flat surface. The temperature sensor (122) is in contact with the flat surface. Wherein, the distance between the intersection of the first side (1111) and the second side (1112) and the axis of the upper shell (11) is C3, the radius of the third side (1113) is R1, the radius of the edge of the upper shell (11) is R2, the distance between the axis of the connecting column (112) and the axis of the upper shell (11) is C4, and the included angle between the first side (1111) and the second side (1112) is a, wherein 0.7≤R1 / R2≤1; or 0.25≤C3 / R1≤0.6; or 0.32≤C4 / R1≤0.7; or 60°≤a≤180°.

4. The compressor (100) according to claim 3, characterized in that, The connection between the first side (1111) and the third side (1113) and the connection between the second side (1112) and the third side (1113) are rounded; and / or, the upper housing (11) further includes an exhaust pipe (113) that extends along the axis of the upper housing (11).

5. The compressor (100) according to claim 1, characterized in that, The terminal assembly (12) further includes a first wire harness (1251) and a second wire harness (1252), the first wire harness (1251) and the second wire harness (1252) passing through the connector (121) and electrically connected to the temperature sensor (122); Wherein, the cross-sectional area S1 of the conductor in the first wire harness (1251) or the second wire harness (1252) satisfies: 0.3 mm² ≤ S1 ≤ 1.0 mm².

6. The compressor (100) according to claim 1, characterized in that, The upper housing (11) further includes a terminal block (114), and the terminal assembly (12) further includes a terminal block (124) disposed in the connector (121). The connector (121) is provided with a socket (1217) opposite to the terminal block (124), and the terminal block (114) passes through the socket (1217) and connects with the terminal block (124). The sealing gasket (123) includes a second support portion (1232), which is disposed between the connecting seat (121) and the upper housing (11) and surrounds the insertion hole (1217).

7. The compressor (100) according to claim 6, characterized in that, The connecting seat (121) has a second positioning groove opposite to the flat portion (111), the second positioning groove is arranged around the insertion hole (1217), the sealing gasket (123) further includes a second positioning rib (1236), the second positioning rib (1236) is connected to the second support portion (1232), and the second positioning rib (1236) is disposed in the second positioning groove; And / or, the connecting seat (121) also has a second limiting groove opposite to the flat portion (111), the second limiting groove being disposed on the side of the insertion hole (1217), and the sealing gasket (123) further includes a second limiting block (1237), the second limiting block (1237) being connected to the second support portion (1232), and the second limiting block (1237) being disposed in the second limiting groove.

8. The compressor (100) according to claim 6, characterized in that, The terminal assembly (12) further includes a third wire harness (1253), a fourth wire harness (1254), and a fifth wire harness (1255), which pass through the connector (121) and are electrically connected to the terminal block (124); Wherein, the cross-sectional area S2 of the conductor of the third wire bundle (1253), the fourth wire bundle (1254) or the fifth wire bundle (1255) satisfies: 1.3 square millimeters ≤ S2 ≤ 6.0 square millimeters.

9. The compressor (100) according to any one of claims 1-8, characterized in that, The connector (121) is a structure made of PBT material and / or PA66 material; and / or, the connector (121) is integrally injection molded; and / or, the sealing gasket (123) is a structure made of silicone rubber material; and / or, the sealing gasket (123) is integrally molded.

10. A control method for a compressor (100) according to any one of claims 1-9, characterized in that, The control method includes: The resistance value R of the temperature sensor (122) is obtained. When the resistance value R is greater than a first preset value, the compressor (100) is controlled to execute a temperature protection mode. When the resistance value R is less than a second preset value, the compressor (100) is controlled to execute a normal operation mode. Wherein, the first preset value is greater than the second preset value, the temperature protection mode includes disconnecting the power supply of the compressor (100), and the normal operation mode includes connecting the power supply of the compressor (100).

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