Terminal assembly, compressor and heating and ventilation equipment

Abstract

The utility model discloses a terminal assembly, a compressor and heating and ventilation equipment, and the terminal assembly comprises a first housing which is provided with an installation cavity and a jack communicated with the installation cavity, and the installation cavity is provided with a first side surface and a second side surface which are opposite to each other along a first direction; the terminal plug-in comprises a main body part opposite to the jack, the main body part is arranged in the mounting cavity, the first side surface comprises a first inner cavity wall and a third inner cavity wall, the second side surface comprises a second inner cavity wall and a fourth inner cavity wall, and the first inner cavity wall and the second inner cavity wall are opposite in the first direction and spaced by a first width value A1; the third inner cavity wall and the fourth inner cavity wall are opposite in the first direction and spaced by a second width value A2, and A2 is smaller than A1. According to the terminal assembly provided by the embodiment of the utility model, the installation efficiency and the stability of the terminal assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a terminal assembly for a compressor, a compressor, and a heating, ventilation, and air conditioning (HVAC) device. Background Technology

[0002] As one of the four core components of an air conditioning system, the compressor is used to compress and drive the refrigerant. The compressor compresses the refrigerant into a high-temperature, high-pressure gaseous state, thereby providing the power for the refrigerant to flow. Therefore, the compressor is crucial to the air conditioning system.

[0003] Generally, the terminal structure on the compressor cylinder consists of three terminals, all of which must be connected to the power supply line to provide power to the compressor. However, for a long time, when wiring the compressor, it is necessary to connect the three power lines separately, and then use bolts and nuts to fix the terminal cover on the cylinder for protection. At the same time, rubber gaskets and sealing putty are also required to prevent dust and water. The wiring efficiency is low, and the overall cost of labor, materials, and turnover is high. Utility Model Content

[0004] One objective of this invention is to provide a terminal assembly for a compressor, a compressor, and HVAC equipment, which can improve the installation efficiency and stability of the terminal assembly.

[0005] A compressor terminal assembly according to an embodiment of the present invention includes: a first housing, the first housing having a mounting cavity and a socket communicating with the mounting cavity, the mounting cavity having a first side and a second side opposite to each other along a first direction, the first direction being perpendicular to the axis of the socket; a terminal insert, the terminal insert including a main body portion opposite to the socket, the main body portion being disposed in the mounting cavity, wherein the first side includes a first inner cavity wall and a third inner cavity wall, the second side includes a second inner cavity wall and a fourth inner cavity wall, the first inner cavity wall and the second inner cavity wall being opposite to each other along the first direction and spaced apart by a first width value A1; the third inner cavity wall and the fourth inner cavity wall being opposite to each other along the first direction and spaced apart by a second width value A2, satisfying A2 < A1.

[0006] According to the embodiments of the present invention, the terminal assembly for compressors can protect the terminal plugs using a first cover, and multiple terminal plugs can be set in the same first cover. By using the mounting cavity to position the terminal plugs, the stability of the terminal plug positioning can be improved, thereby improving the installation efficiency of the terminal assembly.

[0007] In addition, the compressor terminal assembly according to the above embodiments of the present invention may also have the following additional technical features:

[0008] In some embodiments, the depth dimension of the first inner cavity wall and the second inner cavity wall along the axial direction of the insertion port is a first depth value L1, and the depth dimension of the third inner cavity wall and the fourth inner cavity wall along the axial direction of the insertion port is a second depth value L2, wherein 0.03*L1≤L2≤0.13*L1; and / or, 0.35≤A2 / A1≤0.85.

[0009] In some embodiments, the third inner cavity wall protrudes beyond the first inner cavity wall, and the fourth inner cavity wall protrudes beyond the second inner cavity wall.

[0010] In some embodiments, the first housing has a first end face, the socket extends through the first end face, the third inner cavity wall is closer to the first end face than the first inner cavity wall, and the fourth inner cavity wall is closer to the first end face than the second inner cavity wall.

[0011] In some embodiments, the first side also includes a fifth inner cavity wall, and the second side includes a sixth inner cavity wall. The fifth inner cavity wall and the sixth inner cavity wall are opposite to each other along the first direction and are spaced apart by a third width value A3, satisfying A3 < A2.

[0012] In some embodiments, the first housing has a first end face, the insertion port is disposed on the first end face, the fifth inner cavity wall is closer to the first end face than the third inner cavity wall, and the sixth inner cavity wall is closer to the first end face than the fourth inner cavity wall; and / or, the fifth inner cavity wall protrudes from the third inner cavity wall, and the sixth inner cavity wall protrudes from the fourth inner cavity wall.

[0013] In some embodiments, the main body is configured as a semi-closed or fully closed ring, the main body includes a first piece and a second piece that are opposite each other along a first direction, the first piece and the second piece being integrally connected by a transition portion; the first side face is opposite to the outer side face of the first piece, and the second side face is opposite to the outer side face of the second piece; and / or, the main body is provided with a mounting hole, the mounting hole being opposite to the socket; and / or, the terminal plug further includes a wiring portion, the wiring portion being connected to the main body and extending along a second direction, the axes of the first direction, the second direction and the socket being perpendicular to each other.

[0014] In some embodiments, the main body is provided with a mounting hole, which is opposite to the socket; the mounting hole is smaller in size along a first direction than in size along a second direction, and the axes of the first direction, the second direction and the socket are perpendicular to each other.

[0015] In some embodiments, the first housing includes an inner shell and an outer shell, the inner shell being disposed within the outer shell, and the mounting cavity being disposed within the inner shell.

[0016] In some embodiments, the outer shell surrounds the inner shell by injection molding; or, the inner shell is a block made of PBT material mixed with flame retardant, PVC material, or nylon material; or, the outer shell is a block made of PBT material mixed with flame retardant, PVC material, or nylon material; or, the inner shell includes a first part and a second part, the first part and the second part are assembled and fixedly connected, and the mounting cavity is disposed between the first part and the second part; or, the inner shell is integrally molded; or, the inner shell is injection molded.

[0017] In some embodiments, the terminal assembly further includes a wiring harness electrically connected to the terminal plug and extending out of the first housing.

[0018] In some embodiments, the terminal assembly further includes a second housing, a temperature sensing element, and an elastic element, the second housing having a mounting groove, the temperature sensing element being disposed in the mounting groove, and the elastic element having an elastic force that drives the temperature sensing element through an opening toward the mounting groove.

[0019] In some embodiments, the first cover includes an inner shell and an outer shell, the inner shell is disposed inside the outer shell, the mounting cavity is disposed in the inner shell, and the second cover is integrally formed with the outer shell.

[0020] The compressor according to an embodiment of the present invention includes a housing and the aforementioned compressor terminal assembly, wherein the terminal assembly is mounted on the housing.

[0021] In some embodiments, the housing is provided with a positioning post, the terminal assembly is provided with a positioning hole, the positioning hole penetrates the terminal assembly, the positioning post passes through the positioning hole and a locking member is connected to its free end; or, the housing is provided with an inverted buckle structure, the terminal assembly is provided with a positioning part, the terminal assembly is pressed against the housing and the inverted buckle structure and the positioning part are engaged.

[0022] In some embodiments, the terminal assembly is disposed on the outer wall surface of the housing; and / or, the compressor further includes a wiring terminal, the wiring terminal including a terminal body and a terminal post, the terminal body being disposed on the housing, the terminal post being connected to the terminal body, and the terminal post passing through the socket and the terminal insert.

[0023] The heating and ventilation equipment according to the present invention includes the aforementioned terminal assembly for the compressor; or includes the aforementioned compressor. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of a terminal assembly according to an embodiment of the present invention.

[0025] Figure 2 This is a cross-sectional view of another section of the terminal assembly according to one embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the first cover of the terminal assembly and the terminal plug fitting in one embodiment of the present invention.

[0027] Figure 4 This is a perspective view of the first cover of the terminal assembly and the terminal plug-in in accordance with an embodiment of the present invention.

[0028] Figure 5 This is a cross-sectional view of a first housing of a terminal assembly according to an embodiment of the present invention.

[0029] Figure 6 This is a cross-sectional view of another section of the first housing of a terminal assembly according to an embodiment of the present invention.

[0030] Figure 7 This is a bottom view of the first housing of a terminal assembly according to an embodiment of the present invention.

[0031] Figure 8 This is a cross-sectional view of a first housing of a terminal assembly according to another embodiment of the present invention.

[0032] Figure 9 This is a cross-sectional view of another section of the first housing of the terminal assembly according to another embodiment of the present invention.

[0033] Figure 10 This is a schematic diagram of the first housing of a terminal assembly according to another embodiment of the present invention.

[0034] Figure 11 This is a schematic diagram of the first housing of a terminal assembly according to another embodiment of the present invention.

[0035] Figure 12 This is a perspective view of the first cover of the terminal assembly and the terminal plug-in in another embodiment of the present invention.

[0036] Figure 13 This is a schematic diagram of one direction of the terminal plug of the terminal assembly according to an embodiment of the present invention.

[0037] Figure 14 This is a schematic diagram of the terminal plug of the terminal assembly according to another embodiment of the present invention from another direction.

[0038] Figure 15 This is a schematic diagram of a compressor according to one embodiment of the present invention.

[0039] Figure 16This is a schematic diagram of the compressor housing and wiring terminals according to one embodiment of the present invention.

[0040] Figure 17 This is a schematic diagram showing the relationship between ratio A2 / A1 and terminal insertion force, as well as the relationship between ratio A2 / A1 and failure rate after installation.

[0041] Figure 18 This is a schematic diagram showing the relationship between the ratio L2 / L1 and the terminal insertion force, and between the ratio A2 / A1 and the failure rate after installation.

[0042] Figure label:

[0043] Compressor 100, terminal assembly 10, first housing 11, mounting cavity 101, first inner cavity wall 1011, second inner cavity wall 1012, third inner cavity wall 1013, fourth inner cavity wall 1014, fifth inner cavity wall 1015, sixth inner cavity wall 1016, socket 102, first end face 103, inner shell 111, first part 1111, second part 1112, outer shell 112, terminal plug 12, main body 121, first piece 1211, second piece 121 2. Mounting hole 104, wiring part 122, wire harness 13, second cover 14, mounting groove 105, positioning hole 106, temperature sensing element 15, elastic element 16, waterproof gasket 17, housing 20, positioning post 21, wiring terminal 22, locking element 23, terminal body 221, wiring post 222, first direction AA, second direction BB, axial direction of the socket CC, first width value A1, second width value A2, third width value A3, first depth value L1, second depth value L2. Detailed Implementation

[0044] 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] like Figures 1 to 15 According to an embodiment of the present invention, a terminal assembly 10 for a compressor 100 includes a first housing 11. The first housing 11 has a mounting cavity 101 and a socket 102 communicating with the mounting cavity 101. The mounting cavity 101 has a first side and a second side opposite to each other along a first direction AA, the first direction AA being perpendicular to the axis of the socket 102. Further, the terminal assembly 10 also includes a terminal insert 12, which includes a main body 121 opposite to the socket 102, the main body 121 being disposed in the mounting cavity 101.

[0046] Terminal assembly 10 can be disposed outside housing 20 of compressor 100. Compressor 100 includes terminals 222 for connecting to power supply, and terminal assembly 10 can be electrically connected to terminals 222. When terminal assembly 10 is connected to housing 20, terminals 222 on housing 20 are pressed into socket 102, and terminals 222 are electrically connected to terminal insert 12 within first cover 11. During assembly, terminal assembly 10 only needs to be installed onto housing 20 and then fixed onto housing 20. During assembly, terminals 222 extend through socket 102 into first cover 11 and are electrically connected to terminal insert 12 located within first cover 11. Terminal insert 12 can quickly and stably connect to housing 20 and is enclosed within first cover 11, thereby improving the stability of the electrical connection by enclosing the electrical connection point between terminal insert 12 and terminals 222 within first cover 11. This solution improves the assembly efficiency of compressor 100 and achieves water and electricity isolation at electrical connection points, thereby enhancing the operational stability of compressor 100. While ensuring the reliability of compressor 100, the integrated structure effectively reduces labor costs for air conditioning manufacturers assembling compressor 100, particularly for compressors exported to developed countries, where this solution demonstrates significant effectiveness.

[0047] In conjunction with the foregoing, the terminal plug 12 in this utility model can be used to connect a power source. Multiple terminal plugs 12 can be pre-installed inside the first housing 11, with the terminal plugs 12 fitting into the first housing 11, and the first housing 11 securing the terminal plugs 12. For example, Figure 1 , Figure 3 and Figure 4 When the terminal plug 12 is used to connect to the power supply, two, three, four, or other numbers of terminals 222 can be provided depending on the type of compressor 100, and multiple terminal plugs 12 can be configured to correspond to multiple terminals 222. The first cover 11 may include multiple mounting cavities 101 and multiple sockets 102. Multiple terminal plugs 12 correspond to multiple mounting cavities 101, and multiple sockets 102 correspond to multiple mounting cavities 101. The terminal plug 12 is located in the corresponding mounting cavity 101, and the socket 102 is connected to the corresponding mounting cavity 101. The multiple mounting cavities 101 can be interconnected or separated from each other.

[0048] Optionally, such as Figure 5 and Figure 9The first side includes a first inner cavity wall 1011 and a third inner cavity wall 1013, and the second side includes a second inner cavity wall 1012 and a fourth inner cavity wall 1014. The first inner cavity wall 1011 and the second inner cavity wall 1012 are opposite each other along a first direction AA, and the first inner cavity wall 1011 and the second inner cavity wall 1012 are spaced apart by a first width value A1. The third inner cavity wall 1013 and the fourth inner cavity wall 1014 are opposite each other along the first direction AA, and the third inner cavity wall 1013 and the fourth inner cavity wall 1014 are spaced apart by a second width value A2, where A2 < A1. A stepped structure can be constructed on the first side and / or the second side to facilitate the optimization of the positioning of the terminal plug 12 by utilizing the cooperation of the first side and the second side.

[0049] According to the embodiment of the present invention, the terminal assembly 10 for the compressor 100 can protect the terminal plug 12 by using the first cover 11, and multiple terminal plugs 12 can be set on the same first cover 11. By using the mounting cavity 101 to position the terminal plug 12, the stability of the positioning of the terminal plug 12 can be improved, thereby improving the installation efficiency of the terminal assembly 10.

[0050] like Figure 17 The ratio A2 / A1 of the second width value A2 and the first width value A1 is shown, and its correspondence with the terminal insertion force when the terminal 222 mates with the terminal assembly 10. Figure 17 The dashed lines in the diagram, and their correspondence with the failure rate after terminal installation ( Figure 17 (The solid line in the middle). From the appendix Figure 17 As can be seen, when the ratio of A2 / A1 is less than 1, the terminal insertion force is reduced, and the failure rate after terminal installation is also relatively low. To further balance the terminal insertion force and the failure rate after terminal installation, the ratio A2 / A1 can be set to greater than or equal to 0.35 and less than or equal to 0.85. This makes the installation of the terminal assembly 10 easier and reduces the failure rate after the terminal assembly 10 is connected to the housing 20. For example, the ratio A2 / A1 can be set to 0.35, 0.46, 0.56, 0.78, 0.81, or 0.85, etc.

[0051] like Figure 6 In some embodiments of this utility model, the depth dimension of the first inner cavity wall 1011 and the second inner cavity wall 1012 along the axial direction CC of the socket 102 is a first depth value L1, and the depth dimension of the third inner cavity wall 1013 and the fourth inner cavity wall 1014 along the axial direction CC of the socket 102 is a second depth value L2, wherein 0.03*L1≤L2≤0.13*L1. This can further balance the terminal insertion force and the failure rate after the terminal assembly 10 is installed.

[0052] like Figure 18The ratio L2 / L1 of the second depth value L2 and the first depth value L1 is shown, and its correspondence with the terminal insertion force when the terminal 222 mates with the terminal assembly 10. Figure 18 The dashed lines in the diagram, and their correspondence with the failure rate after terminal installation ( Figure 18 (The solid line in the diagram). It can be seen that when the ratio L2 / L1 is set to be greater than or equal to 0.03 and less than or equal to 0.13, the installation of the terminal assembly 10 can be made more convenient, and the failure rate after the terminal assembly 10 is connected to the housing 20 can be reduced. For example, the ratio L2 / L1 can be set to 0.03, 0.08, 0.09, 0.11, 0.122, or 0.13, etc.

[0053] like Figure 5 The third inner cavity wall 1013 protrudes from the first inner cavity wall 1011, and the fourth inner cavity wall 1014 protrudes from the second inner cavity wall 1012. This can further improve the positioning effect of the terminal plug 12 and improve the installation efficiency of the terminal assembly 10.

[0054] Optionally, the first housing 11 has a first end face 103, a socket 102 passing through the first end face 103, a third inner cavity wall 1013 being closer to the first end face 103 than the first inner cavity wall 1011, and a fourth inner cavity wall 1014 being closer to the first end face 103 than the second inner cavity wall 1012. During the installation of the terminal assembly 10, the terminal 222 passes through the socket 102 from the first end face 103 and engages with the main body 121. By setting the smaller gaps of the third inner cavity wall 1013 and the fourth inner cavity wall 1014 closer to the first end face 103, the assembly stability of the terminal 222 and the terminal plug 12 can be improved, and the failure rate can be reduced.

[0055] like Figure 8 , Figure 10 and Figure 11 In some embodiments, the first side also includes a fifth inner cavity wall 1015, and the second side includes a sixth inner cavity wall 1016. The fifth inner cavity wall 1015 and the sixth inner cavity wall 1016 are opposite each other along a first direction AA, and the fifth inner cavity wall 1015 and the sixth inner cavity wall 1016 are spaced apart by a third width value A3, satisfying A3 < A2. This can facilitate the installation of the terminal assembly 10 and reduce the failure rate after the terminal assembly 10 is connected to the housing 20.

[0056] like Figure 7 and Figure 12In some embodiments, the first housing 11 has a first end face 103, a socket 102 is disposed on the first end face 103, a fifth inner cavity wall 1015 is closer to the first end face 103 than the third inner cavity wall 1013, and a sixth inner cavity wall 1016 is closer to the first end face 103 than the fourth inner cavity wall 1014; and / or, the fifth inner cavity wall 1015 protrudes from the third inner cavity wall 1013, and the sixth inner cavity wall 1016 protrudes from the fourth inner cavity wall 1014. During the installation of the terminal assembly 10, the terminal 222 passes through the socket 102 from the first end face 103 and engages with the main body 121. By setting the fifth inner cavity wall 1015 and the sixth inner cavity wall 1016, which have smaller gaps, to be closer to the first end face 103, the assembly stability of the terminal 222 and the terminal plug 12 can be improved, and the failure rate can be reduced.

[0057] like Figure 13 and Figure 14 In some embodiments, the main body 121 is configured as a semi-closed or fully closed ring. The main body 121 includes a first piece 1211 and a second piece 1212 facing each other along a first direction AA. The first piece 1211 and the second piece 1212 are integrally connected by a transition portion. This simplifies the structure of the main body 121 and allows for the construction of a mounting hole 104 between the first piece 1211 and the second piece 1212, facilitating the mating of the terminal 222 with the mounting hole 104. Furthermore, it facilitates the elastic deformation of the first piece 1211 and the second piece 1212 after the terminal 222 is inserted, improving the stability of the assembly between the main body 121 and the terminal 222.

[0058] For example, the first piece 1211 and the second piece 1212 are opposite each other along the first direction AA, and one end of the first piece 1211 and the second piece 1212 along the second direction BB are connected by a transition portion, while the other ends of the first piece 1211 and the second piece 1212 along the second direction BB are separated; or, the first piece 1211 and the second piece 1212 are opposite each other along the first direction AA, and one end of the first piece 1211 and the second piece 1212 along the second direction BB are connected by a transition portion, while the other ends of the first piece 1211 and the second piece 1212 along the second direction BB are connected by a transition portion, etc. In addition, the terminal plug 12 also includes a wiring portion 122, which can be connected to the main body portion 121. Specifically, the wiring portion 122 can be connected to the first piece 1211 and / or the second piece 1212. The wiring portion 122 can also be configured to extend along the second direction BB.

[0059] The first side faces the outer side of the first piece 1211, and the second side faces the outer side of the second piece 1212.

[0060] Combination Figure 3 , Figure 7 , Figure 13 and Figure 14 In some embodiments, the main body 121 is provided with a mounting hole 104, which is opposite to the socket 102. The terminal 222 can pass through the socket 102 and extend into the mounting hole 104, cooperating with the mounting hole 104 to achieve a stable assembly of the terminal 222 and the terminal insert. Alternatively, the mounting hole 104 can be configured such that the size along the first direction AA is smaller than the size along the second direction BB, and the axes of the first direction AA, the second direction BB, and the socket 102 are perpendicular to each other. This allows the size of the mounting hole 104 to change after the terminal 222 is inserted into it; for example, the size of the mounting hole 104 can increase along the first direction AA and decrease along the second direction BB. This ensures a stable fit between the terminal insert 12 and the terminal 222, improving conductivity.

[0061] In addition, the terminal plug-in 12 also includes a wiring section 122, which is connected to the main body 121. This facilitates the connection of the terminal plug-in to the wiring harness 13.

[0062] like Figure 9 In some embodiments of this utility model, the first housing 11 includes an inner housing 111 and an outer housing 112. The inner housing 111 is disposed inside the outer housing 112, and the mounting cavity 101 is disposed in the inner housing 111. The inner housing 111 is relatively fixedly connected to the terminal plug 12, serving to fix and protect the terminal plug 12. The outer housing 112 encloses the inner housing 111 and the terminal plug 12 to relatively fix the outer housing 112, the inner housing 111, and the terminal plug 12 together. The socket 102 is disposed on the outer housing 112 and is opposite to the terminal plug 12, for the terminal 222 of the compressor 100 to pass through the socket 102 and electrically connect to the terminal plug 12. The inner housing 111 can fix the terminal plug 12. When the outer housing 112 encloses the inner housing 111, it can ensure that the position of the terminal plug 12 connected to the inner housing 111 is relatively fixed, avoiding the problem of the terminal plug 12 shifting or loosening during the docking of the terminal assembly 10 and the housing 20, thereby improving the structural stability of the terminal assembly 10. In addition, by using the outer shell 112 to enclose the inner shell 111, it is possible to relatively isolate the inner shell 111 and the terminal plug 12 from the external environment, which facilitates the waterproofing and dustproofing of the terminal plug 12.

[0063] The inner shell 111 is provided with a first interface and a second interface, which are connected to the mounting cavity 101. The first interface is used for inserting the terminal block 222, and the second interface is used for leading out the wire harness 13. The first interface can be opposite to the socket 102, and the terminal block 222 can pass through the socket 102 and the first interface to be electrically connected to the terminal plug 12. In addition, the inner shell 111 may have multiple mounting cavities 101, each of which is provided with a corresponding first interface and a second interface.

[0064] Additionally, a gap can be provided between the inner surface of the mounting cavity 101 and the terminal plug 12. This gap provides allowance for elastic deformation of the terminal plug 12 when the terminal post 222 is pressed in, thereby facilitating the insertion and electrical connection of the terminal post 222 to the terminal plug 12. For example, the terminal plug 12 may have a first portion 1211 and a second portion 1212, which are arranged opposite to each other. When the terminal post 222 is pressed in, it is pressed between the first portion 1211 and the second portion 1212, and the first portion 1211 and / or the second portion 1212 will undergo elastic deformation. By providing a gap between the inner surface of the mounting cavity 101 and the terminal plug 12, allowance can be provided for the deformation of the first portion 1211 and / or the second portion 1212, so as to facilitate a stable fit between the terminal post 222 and the terminal plug 12 and improve the assembly efficiency between the terminal assembly 10 and the terminal post 222.

[0065] The inner shell 111 and outer shell 112 in this utility model can be formed in various ways. For example, the inner shell 111 can be set as an integral structure or as a split structure.

[0066] For example, in some embodiments, the inner shell 111 is divided into a first part 1111 and a second part 1112, which are assembled together. After the first part 1111 and the second part 1112 are assembled together, the mounting cavity 101 is located between the first part 1111 and the second part 1112. Since the first part 1111 and the second part 1112 are assembled together, the terminal plug 12 can be placed between the first part 1111 and the second part 1112 during the assembly process, thereby facilitating the installation and positioning of the terminal plug 12. The first part 1111 and the second part 1112 can be fixedly connected in various ways. For example, the first part 1111 and the second part 1112 can be fixedly connected by fasteners (such as bolts, pins, rivets, etc.); or the first part 1111 and the second part 1112 can be fixedly connected by welding, bonding, etc.; in addition, after the first part 1111 and the second part 1112 are assembled, the outer shell 112 can be used to fix the first part 1111 and the second part 1112 together. Of course, the above description is only some embodiments of this utility model and is not a limitation on the protection scope of this utility model.

[0067] For example, in other embodiments, the inner shell 111 is integrally formed, wherein the inner shell 111 may have a mounting cavity 101 in which the terminal plug 12 is mounted. Integral forming can improve the structural strength of the inner shell 111, increase the service life of the terminal assembly 10, and improve the processing efficiency of the inner shell 111.

[0068] The inner shell 111 of this utility model can be configured as injection molded. In conjunction with the foregoing embodiments, the inner shell 111 can be configured as a split structure, for example, the inner shell 111 includes a first part 1111 and a second part 1112, wherein the first part 1111 and the second part 1112 are separately injection molded and then assembled together; the inner shell 111 can also be configured as a single injection molded unit.

[0069] In this invention, the inner shell 111 and outer shell 112 can be formed separately. For example, after the inner shell 111 is injection molded, the outer shell 112 can be injection molded together with the inner shell 111. This allows the inner shell 111 to maintain the position of the terminal insert 12, preventing the terminal insert 12 from shifting during the secondary injection molding process. It also provides deformation allowance for the terminal insert 12, facilitating the connection between the terminal post 222 and the terminal insert 12. The secondary injection molding of the outer shell 112 ensures that the inner shell 111 and the terminal insert 12 are waterproof and dustproof, improving the stability of the terminal assembly 10. Alternatively, the inner shell 111 may include the aforementioned first part 1111 and second part 1112. After the first part 1111 and the second part 1112 are assembled and the terminal insert 12 is positioned, the outer shell 112 is injection molded around the inner shell 111. Of course, the inner shell 111 and outer shell 112 can also be formed separately in other ways. Optionally, the outer shell 112 surrounds the inner shell 111 by injection molding.

[0070] In addition, such as Figure 1 The terminal assembly 10 also includes a wiring harness 13. One end of the wiring harness 13 is electrically connected to the terminal plug 12, and the other end extends out of the first housing 11 for connecting to external devices, such as power supplies, controllers, etc. This utility model mainly uses the wiring harness 13 to connect to a power supply to power the compressor 100 as an example for explanation. A sealing structure can be formed between the wiring harness 13 and the housing 112 to improve the waterproof and dustproof effect of the terminal plug 12. For example, the housing 112 can be injection molded, and during the injection molding of the housing 112, the wiring harness 13 is wrapped and fixed to the housing 112, thereby improving the sealing between the wiring harness 13 and the first housing 11. The specifications of the wiring harness 13 can be adjusted according to the current, and the conductor cross-section of the wiring harness 13 can be set to be no less than square millimeters.

[0071] In conjunction with the foregoing, the manufacturing method of the terminal assembly 10 of this utility model may include: connecting the terminal plug 12 to the wire harness 13; manufacturing an inner shell 111 having a mounting cavity 101, installing the terminal plug 12 in the mounting cavity 101, with the wire harness 13 extending out; positioning the inner shell 111 with the terminal plug 12 installed in a mold, and injection molding an outer shell 112 on the outside of the inner shell 111, the outer shell 112 enclosing the inner shell 111, the terminal plug 12, and a part of the wire harness 13, and constructing a socket 102 on the outer shell 112 during the injection molding process, the socket 102 being opposite to the terminal plug 12.

[0072] In some embodiments of this invention, the inner shell 111 is a block made of PBT (polybutylene terephthalate) material mixed with flame retardant; or, the outer shell 112 is a block made of PBT material mixed with flame retardant. This ensures the flame-retardant performance of the first shell 11 and improves the stability and safety of the terminal assembly 10. Alternatively, the inner shell 111 can also be a block made of PVC (polyvinyl chloride) material or nylon material; the outer shell 112 can also be a block made of PVC material or nylon material.

[0073] In some other embodiments of this utility model, the first cover 11 is integrally injection molded. This simplifies the manufacturing process of the first cover 11, allowing the terminal insert 12 to be enclosed within it during the integral molding process, thereby ensuring the waterproof and dustproof effect of the terminal assembly 10 and improving the molding efficiency and stability of the terminal assembly 10.

[0074] In some embodiments, the terminal assembly 10 further includes a second housing 14, a temperature sensing element 15, and an elastic element 16. The second housing 14 is provided with a mounting groove 105, the temperature sensing element 15 is disposed in the mounting groove 105, and the elastic element 16 has an elastic force that drives the temperature sensing element 15 through an opening facing the mounting groove 105. The temperature sensing surface of the temperature sensing element 15 can be fitted against the surface of the housing 20 to achieve temperature detection of the compressor 100. The elastic element 16 can elastically drive the temperature sensing element 15 to improve the contact stability between the temperature sensing element 15 and the surface of the housing 20, thereby improving the accuracy of the detection results.

[0075] Optionally, the first housing 11 includes an inner housing 111 and an outer housing 112, with the inner housing 111 disposed within the outer housing 112 and the mounting cavity 101 disposed within the inner housing 111. The second housing 14 is integrally formed with the outer housing 112. This further improves the integration of the terminal assembly 10 and simplifies the assembly process between the terminal assembly 10 and the housing 20, thereby improving the installation efficiency of the compressor 100. After the terminal assembly 10 is processed, a temperature sensing component can be pre-installed on the terminal assembly 10. When the terminal assembly 10 is connected to the housing 20, the temperature sensing surface of the temperature sensing component is in close contact with the housing 20 to achieve temperature monitoring. The temperature sensing surface of the temperature sensing component can protrude from the mating surface and directly contact the housing 20.

[0076] The temperature-sensing surface and the socket 102 can be located on the same side of the first housing 11. When installing the terminal assembly 10, the terminal post 222 of the housing 20 can pass through the socket 102 and electrically connect to the terminal plug 12. At the same time, the temperature-sensing surface contacts the outer surface of the housing 20. At this time, the terminal assembly 10 can be fixed by the fastener, and the installation of the terminal plug 12 and the temperature-sensing component can be completed.

[0077] The terminal assembly 10 also includes a temperature sensing terminal, which is enclosed in the second housing 14 and is opposite to the mounting groove 105. The inner surface of the mounting groove 105 is provided with an opening corresponding to the temperature sensing terminal. The connecting wire harness 13 is electrically connected to the temperature sensing terminal, and the wiring terminal of the temperature sensing component is electrically connected to the temperature sensing terminal.

[0078] like Figure 15 and Figure 16 The compressor 100 according to this embodiment includes a housing 20 and the aforementioned terminal assembly 10 for the compressor 100, the terminal assembly 10 being mounted on the housing 20. This improves the assembly efficiency of the compressor 100, optimizes water and electricity isolation, and enhances the operational stability of the compressor 100. While ensuring the reliability of the compressor 100, the integrated structure effectively reduces the labor costs for air conditioner manufacturers assembling the compressor 100, especially for compressors exported to developed countries, where this solution is particularly effective.

[0079] In some embodiments, the housing 20 is provided with a positioning post 21, and the terminal assembly 10 is provided with a positioning hole 106, which penetrates the terminal assembly 10. The positioning post 21 passes through the positioning hole 106 and its free end is connected to a locking member 23. Through the cooperation of the positioning post 21 and the locking member 23, the terminal assembly 10 can be stably installed on the compressor 100. The locking member 23 can be a positioning pin, a positioning screw, or a positioning nut, etc.

[0080] In other embodiments, the housing 20 is provided with an undercut structure, and the terminal assembly 10 is provided with a positioning part. The terminal assembly 10 is pressed against the housing 20 and engaged by the undercut structure and the positioning part. Specifically, a slot can be provided on the mating surface of the terminal assembly 10, through which the undercut structure passes and is positioned and connected to the slot, thereby achieving a snap-fit ​​connection between the terminal assembly 10 and the compressor 100. Alternatively, a slot can be provided on the side of the terminal assembly 10, and the engagement of the undercut structure with the slot can achieve stable installation of the terminal assembly 10.

[0081] like Figure 16 In some embodiments, the terminal assembly 10 is disposed on the outer wall surface of the housing 20; and / or, the compressor 100 further includes a wiring terminal 22, which includes a terminal body 221 and a terminal post 222. The terminal body 221 is disposed on the housing 20, and the terminal post 222 connects to the terminal body 221. The terminal post 222 passes through the socket 102 and the terminal insert 12. This facilitates the connection of terminals. Quick installation.

[0082] Optionally, the terminal plug 12 can be ring-shaped, U-shaped, or flag-shaped. When the terminal 222 is pressed in, it can stably connect with the terminal plug 12, effectively improving the stability of the electrical connection between the compressor 100 and the terminal assembly 10.

[0083] Combination Figure 2 In some embodiments of this utility model, a waterproof gasket 17 is provided at the mating surface where the terminal assembly 10 mates with the housing 20. When the terminal assembly 10 is installed on the housing 20, the mating surface can be opposite to the outer surface of the housing 20, and the waterproof gasket 17 can be disposed between the mating surface and the outer surface of the housing 20. This can seal the gap between the terminal assembly 10 and the housing 20 when the terminal assembly 10 is installed on the housing 20, thereby improving the waterproof and dustproof effect and stability between the terminal assembly 10 and the housing 20.

[0084] The waterproof gasket 17 in this invention can be installed in different ways. For example, the waterproof gasket 17 can be installed onto the terminal assembly 10, and the terminal assembly 10 with the waterproof gasket 17 installed can be connected to the housing 20; or the waterproof gasket 17 can be installed on the housing 20, and then the terminal assembly 10 can be connected to the housing 20. Of course, the waterproof gasket 17 of this invention can also be installed in other ways. In some embodiments, the waterproof gasket 17 is fixedly connected to the terminal assembly 10. In addition, since the waterproof gasket 17 is fixedly connected to the terminal assembly 10, it is no longer necessary to install the waterproof gasket 17 separately when assembling the terminal assembly 10 and the housing 20, thereby further simplifying the assembly efficiency of the terminal assembly 10 and the housing 20.

[0085] The waterproof gasket 17 can be connected to the terminal assembly 10 in various ways. For example, the waterproof gasket 17 includes a snap-fit ​​structure and a slot is provided on the side of the terminal assembly 10. The waterproof gasket 17 and the terminal assembly 10 are assembled by the cooperation of the snap-fit ​​structure and the slot. Another example is that the waterproof gasket 17 and the snap-fit ​​structure are bonded together.

[0086] The heating and ventilation equipment according to the present invention includes the terminal assembly 10 of the compressor 100 as described above; or includes the compressor 100 as described above.

[0087] like Figures 1 to 18This utility model provides a terminal assembly 10 for a compressor 100, which is disposed outside the housing 20 of the compressor 100. The terminal plug 12 can be made of metal, and the first cover 11 can be made of plastic housing 20 or other insulating housing. The terminal plug 12 can have a main body 121 and a wiring part 122. The main body 121 has a first piece 1211 and a second piece 1212 forming a straight segment and / or a curved segment. The first piece 1211 and the second piece 1212 are integrally connected by a transition part. The first cover 11 has a mounting cavity 101 for placing the terminal plug 12. The mounting cavity 101 has a first inner cavity wall 1011 that mates with the first piece 1211 and a second inner cavity wall 1012 that mates with the second piece 1212. The average distance between the first inner cavity wall 1011 and the second inner cavity wall 1012 is set to A1. The maximum depth of the first inner cavity wall 1011 and the second inner cavity wall 1012 along the axial direction CC of the insertion port 102 is set to L1. The mounting cavity 101 is further provided with a third inner cavity wall 1013 and a fourth inner cavity wall 1014, and the average distance between the third inner cavity wall 1013 and the fourth inner cavity wall 1014 is set as A2. The maximum depth of the third inner cavity wall 1013 and the fourth inner cavity wall 1014 along the axial direction CC of the insertion port 102 is set as L2. Wherein, A2 < A1, 0.03*L1 ≤ L2 ≤ 0.13*L1.

[0088] 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", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0089] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0091] In this utility model, 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," "on top of," and "over" 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.

[0092] 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.

[0093] 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 terminal assembly (10) for a compressor (100), characterized in that, Comprising: a first housing (11) provided with a mounting cavity (101) and a socket (102) communicating with the mounting cavity (101), the mounting cavity (101) having a first side and a second side opposite in a first direction perpendicular to an axis of the socket (102); a terminal insert (12) comprising a main body (121) opposite the socket (102), the main body (121) being provided in the mounting cavity (101), wherein the first side comprises a first inner cavity wall (1011) and a third inner cavity wall (1013), the second side comprises a second inner cavity wall (1012) and a fourth inner cavity wall (1014), the first inner cavity wall (1011) and the second inner cavity wall (1012) are opposite and spaced apart by a first width value A1 in the first direction; the third inner cavity wall (1013) and the fourth inner cavity wall (1014) are opposite and spaced apart by a second width value A2 in the first direction, satisfying A2 2. The terminal assembly (10) of claim 1, characterized in that the depth dimension of the first inner cavity wall (1011) and the second inner cavity wall (1012) in the axial direction of the socket (102) is a first depth value L1, the depth dimension of the third inner cavity wall (1013) and the fourth inner cavity wall (1014) in the axial direction of the socket (102) is a second depth value L2, wherein 0.03*L1≤L2≤0.13*L1; and / or, 0.35≤A2 / A1≤0.

85.

3. The terminal assembly (10) of claim 1, wherein, the third inner cavity wall (1013) protrudes from the first inner cavity wall (1011), and the fourth inner cavity wall (1014) protrudes from the second inner cavity wall (1012); and / or, the first housing (11) has a first end face portion (103), the socket (102) penetrates the first end face portion (103), the third inner cavity wall (1013) is closer to the first end face portion (103) than the first inner cavity wall (1011), and the fourth inner cavity wall (1014) is closer to the first end face portion (103) than the second inner cavity wall (1012).

4. The terminal assembly (10) of claim 1, wherein, the first side further comprises a fifth inner cavity wall (1015), and the second side comprises a sixth inner cavity wall (1016), the fifth inner cavity wall (1015) and the sixth inner cavity wall (1016) are opposite and spaced apart by a third width value A3 in the first direction, satisfying A3 5. The terminal assembly (10) of claim 4, characterized in that the first housing (11) has a first end face portion (103), the socket (102) is provided in the first end face portion (103), the fifth inner cavity wall (1015) is closer to the first end face portion (103) than the third inner cavity wall (1013), and the sixth inner cavity wall (1016) is closer to the first end face portion (103) than the fourth inner cavity wall (1014); and / or, the fifth inner cavity wall (1015) protrudes from the third inner cavity wall (1013), and the sixth inner cavity wall (1016) protrudes from the fourth inner cavity wall (1014).

6. The terminal assembly (10) according to any one of claims 1-5, characterized in that The main body part (121) is arranged in a semi-closed or fully-closed ring shape, and comprises a first sheet part (1211) and a second sheet part (1212) opposite in a first direction, which are integrally connected through a transition part; the first side surface is opposite to the outer side surface of the first sheet part (1211), and the second side surface is opposite to the outer side surface of the second sheet part (1212); And / or, the terminal insert (12) further comprises a wiring part (122) connected with the main body part (121) and extending in a second direction, the first direction, the second direction and the axis of the socket (102) are perpendicular to each other.

7. The terminal assembly (10) according to any one of claims 1-5, characterized in that, The main body part (121) is provided with a mounting hole (104) opposite to the socket (102); The mounting hole (104) has a shape with a size in the first direction smaller than a size in the second direction, the first direction, the second direction and the axis of the socket (102) are perpendicular to each other.

8. The terminal assembly (10) according to any one of claims 1-5, characterized in that, The first cover shell (11) comprises an inner shell (111) and an outer shell (112), the inner shell (111) is arranged in the outer shell (112), and the mounting cavity (101) is arranged in the inner shell (111).

9. The terminal assembly (10) of claim 8, characterized in that The outer shell (112) surrounds the inner shell (111) by injection molding; Or, the inner shell (111) comprises a first part (1111) and a second part (1112), the first part (1111) and the second part (1112) are spliced and fixedly connected, and the mounting cavity (101) is arranged between the first part (1111) and the second part (1112); Or, the inner shell (111) is integrally formed; Or, the inner shell (111) is injection molded.

10. The terminal assembly (10) of claim 1, wherein, The terminal assembly (10) further comprises a wire harness (13) electrically connected with the terminal insert (12) and extending out of the first cover shell (11).

11. The terminal assembly (10) of claim 1, wherein, The terminal assembly (10) further comprises a second cover shell (14), a temperature sensing member (15) and an elastic member (16), the second cover shell (14) is provided with a mounting groove (105), the temperature sensing member (15) is arranged in the mounting groove (105), and the elastic member (16) has an elastic force driving the temperature sensing member (15) towards the opening of the mounting groove (105).

12. The terminal assembly (10) of claim 11, characterized by The first cover shell (11) comprises an inner shell (111) and an outer shell (112), the inner shell (111) is arranged in the outer shell (112), the mounting cavity (101) is arranged in the inner shell (111), and the second cover shell (14) is integrally formed with the outer shell (112).

13. A compressor (100) characterized by, A terminal assembly (10) for a compressor (100) according to any one of claims 1-12 is installed in a housing (20).

14. The compressor (100) of claim 13, characterized in that, The shell (20) is provided with a positioning column (21), the terminal assembly (10) is provided with a positioning hole (106) penetrating the terminal assembly (10), the positioning column (21) penetrates the positioning hole (106) and the free end is connected with a locking piece (23); Or, the shell (20) is provided with an undercut structure, the terminal assembly (10) is provided with a positioning part, the terminal assembly (10) is pressed to the shell (20) and is buckled with the positioning part by the undercut structure.

15. The compressor (100) of claim 13, wherein, The terminal assembly (10) is arranged on the outer wall surface of the shell (20); And / or, the compressor (100) further comprises a wiring terminal (22), the wiring terminal (22) comprises a terminal body (221) and a wiring column (222), the terminal body (221) is arranged on the shell (20), the wiring column (222) is connected with the terminal body (221), and the wiring column (222) penetrates the socket (102) and the terminal plug-in (12).

16. A heating and ventilation device, characterized by The terminal assembly (10) for the compressor (100) according to any one of claims 1-12; or the compressor (100) according to any one of claims 13-15.

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