Electric control box and heating equipment

Abstract

The application provides an electric control box and a heating and ventilation equipment. The electric control box comprises a first box body, a power module, a wiring seat protective shell and a power supply wiring seat. The first box body is formed with a containing cavity. The power module is installed in the containing cavity. The wiring seat protective shell is connected to the first box body, and the wiring seat protective shell is formed with a protective cavity which is independent of the containing cavity. The power supply wiring seat comprises an insulating base and an electricity connection part connected to the insulating base. The insulating base is connected to the first box body. The first end of the electricity connection part is inserted into the containing cavity and electrically connected to the power module. The second end of the electricity connection part is used for electrically connecting to an external power supply line inserted into the protective cavity. The electric control box is convenient to assemble.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an electrical control box and a heating, ventilation and air conditioning device using the electrical control box. Background Technology

[0002] In the outdoor unit of an air conditioning system, the main function of the electrical control box is to control and manage the electrical system of the outdoor unit, including functions such as driving the motor and regulating the refrigeration cycle. Generally, the electrical control box contains a filter board for filtering out grid noise and storing electrical energy, and the filter board needs to be electrically connected to the external power supply line.

[0003] In related technologies, the electrical connection between the external power supply line and the filter board is achieved through a terminal block and a lead-out assembly. Specifically, the external power supply line is led out through the fixing holes of the lead-out assembly, crimped to the terminals of the terminal block, and then transferred to the filter board through an internal wiring harness.

[0004] However, in the aforementioned electrical control box, the electrical connection point between the external power cord and the filter board is located in the same cavity as the filter board. This is not only inconvenient during the connection process, but also interferes with other wiring harnesses connected to the filter board, which is detrimental to the overall assembly of the electrical control box. Summary of the Invention

[0005] This application provides an electrical control box and HVAC equipment, which facilitates the electrical connection between the external power line and the filter board, and can avoid interference with the surrounding wiring harness of the filter board to a certain extent, thereby improving the overall assembly convenience of the electrical control box.

[0006] In a first aspect, this application provides an electrical control box, including a first box body, a power module, a terminal block protective shell, and a power terminal block; the first box body forms an accommodating cavity; the power module is installed in the accommodating cavity; the terminal block protective shell is connected to the first box body, and the terminal block protective shell forms a protective cavity independent of the accommodating cavity; the power terminal block includes an insulating base and a receiving part connected to the insulating base, the insulating base is connected to the first box body, a first end of the receiving part extends into the accommodating cavity and is electrically connected to the power module, and a second end of the receiving part is used to electrically connect to an external power line extending into the protective cavity.

[0007] As an optional implementation, the power module is a filter board.

[0008] As an optional implementation, the first housing is provided with an installation port that communicates with the accommodating cavity; the insulating base includes an insulating body and a connecting flange protruding from the outer wall of the insulating body, the insulating body extends into the accommodating cavity, and the electrical contact part passes through the insulating body; the first housing is provided with a limiting groove surrounding the installation port on one side of the accommodating cavity, the connecting flange is embedded in the limiting groove and connected to the first housing.

[0009] As an optional implementation, the electrical control box provided in this application also includes a terminal block seal, which is disposed on an insulating base and presses against the first box body.

[0010] As an optional implementation, the terminal block seal is a terminal block sealing ring; the terminal block sealing ring includes a sealing body and a sealing lip connected together, the sealing body is connected to the connecting flange; the sealing lip protrudes from the connecting flange and presses against the first housing.

[0011] As an optional implementation, the sealing lip is set to be multiple radially spaced along the terminal block sealing ring.

[0012] As an optional implementation, the sealing lip is set to be two radially spaced along the terminal block sealing ring.

[0013] As an optional implementation, a cavity is provided inside the sealing body, and the cavity extends circumferentially along the sealing body.

[0014] As an optional implementation, the connecting flange has an annular groove for embedding the sealing body, and the sealing lip protrudes from the annular groove.

[0015] As an optional implementation, the terminal block sealing ring and the connecting flange are an integral structure.

[0016] As an optional implementation, the first box body includes a cold plate body and a first box cover. The first box cover is placed on the cold plate body and together with the cold plate body to form a receiving cavity. The cold plate body is provided with an installation port, and an insulating base is installed at the installation port and partially exposed on the side of the cold plate body facing away from the receiving cavity.

[0017] As an optional implementation, the first box body includes a cold plate body, a first enclosure plate, and a first box cover; the first enclosure plate is connected to the cold plate body, the first box cover is connected to the first enclosure plate, and the cold plate body, the first enclosure plate, and the first box cover together enclose a receiving cavity; the cold plate body is provided with an installation port, and an insulating base is installed at the installation port and partially exposed on the side of the cold plate body facing away from the receiving cavity.

[0018] As an optional implementation, the cold plate body includes a first sub-plate, the first sub-plate having a first plate surface and a second plate surface disposed opposite to each other; the first plate surface forms the bottom wall of the accommodating cavity, and a limiting groove is formed on the bottom wall of the accommodating cavity; the connecting flange abuts against the bottom wall of the limiting groove and is connected to the first sub-plate.

[0019] As an optional implementation, the connecting flange is provided with a first positioning hole and a first connecting hole on both opposite sides; a positioning post that mates with the first positioning hole is provided on the bottom wall of the limiting groove; a second connecting hole that is opposite to the first connecting hole is provided on the bottom wall of the limiting groove; the connecting flange and the first sub-plate are connected together by a first fastener that passes through the first connecting hole and the second connecting hole in sequence.

[0020] As an optional implementation, the second connection hole is a blind hole.

[0021] As an optional implementation, both the first positioning hole and the first connecting hole are located on the side of the terminal block seal away from the insulating body.

[0022] As an optional implementation, the contact part is a conductive post with a first fastening hole and the filter plate has a second fastening hole; wherein, the filter plate and the conductive post are connected together by a second fastener that passes through the second fastening hole and the first fastening hole in sequence.

[0023] As an optional implementation, the electrical control box provided in this application also includes a foolproof structure, which is disposed between the insulating base and the first box body.

[0024] As an optional implementation, the foolproof structure includes a foolproof protrusion disposed on the first housing; the insulating base has a foolproof notch that cooperates with the foolproof protrusion.

[0025] As an optional implementation, there are two foolproof structures, and the two foolproof structures are respectively arranged on both sides of the insulating base along the length direction of the insulating base.

[0026] As an optional implementation, the terminal block protective housing includes a first housing portion and a second housing portion; the first housing portion is connected to the cold plate body, the second housing portion is connected to the first housing portion, and the two housing portions enclose the first housing portion to form a protective cavity; the first housing portion has a clearance opening for the insulating base to pass through.

[0027] As an optional implementation, the terminal block protective housing also includes a reinforcing strip structure disposed on the first housing portion, the reinforcing strip structure being disposed around the clearance opening and located within the protective cavity; wherein the shape of the reinforcing strip structure is adapted to the shape of the clearance opening.

[0028] As an optional implementation, the reinforcing strip structure and the first shell are an integral structure.

[0029] As an alternative implementation, a power line outlet communicating with the protective cavity is formed on the second shell portion; the external power line exits the protective cavity through the power line outlet.

[0030] As an optional implementation, the electrical control box provided in this application also includes a cable outlet structure, which is disposed inside the protective cavity and is disposed opposite to the power cord outlet. The cable outlet structure has a cable outlet cavity that communicates with the power cord outlet. The external power cord passes through the cable outlet cavity and the power cord outlet in sequence and exits the protective cavity.

[0031] As an optional implementation, the cable outlet structure includes a first cable outlet seat and a second cable outlet seat connected to each other, the first cable outlet seat being connected to the first housing portion; the cable outlet cavity has a first cavity wall and a second cavity wall disposed opposite to each other, the first cavity wall being formed on the first cable outlet seat and the second cavity wall being formed on the second cable outlet seat; wherein, a plurality of cable outlet recesses are formed on the first cavity wall at intervals.

[0032] As an optional implementation, in the arrangement direction of the multiple outlet recesses, the middle part of the first cavity wall is recessed relative to the two sides of the first cavity wall; the middle part of the second cavity wall has a recessed portion that is recessed in the direction away from the first cavity wall.

[0033] As an optional implementation, a plurality of first grooves are formed on both the first cavity wall and the second cavity wall at intervals; the extending direction of the first grooves is consistent with the arrangement direction of the plurality of wire outlet recesses, and the arrangement direction of the plurality of first grooves is perpendicular to the arrangement direction of the plurality of wire outlet recesses.

[0034] As an alternative implementation, the second cable outlet has an operating side that is disposed away from the first cable outlet; in the arrangement direction of the plurality of cable outlet recesses, the middle part of the operating side is raised relative to the two sides.

[0035] As an optional implementation, a plurality of second grooves are provided on the operating side at intervals; the extending direction of the second grooves is consistent with the arrangement direction of the plurality of wire outlet recesses, and the arrangement direction of the plurality of second grooves is perpendicular to the arrangement direction of the plurality of wire outlet recesses.

[0036] As an optional implementation, the first cable outlet is provided with a snap-fit ​​part and a insert, and the first housing is provided with a third connecting hole and a fourth connecting hole; the snap-fit ​​part engages with the third connecting hole, and the insert engages with the fourth connecting hole to detachably connect the first cable outlet and the first housing.

[0037] As an optional implementation, the first cable outlet is provided with multiple latching parts, and the first housing is provided with multiple snap-fit ​​holes, with each snap-fit ​​hole corresponding to one of the multiple latching parts; each latching part is engaged with the corresponding snap-fit ​​hole to detachably connect the first cable outlet and the first housing.

[0038] As an optional implementation, the electrical control box provided in this application further includes a third fastener, which sequentially passes through the second cable outlet, the first cable outlet, and the first housing portion, connecting the cable outlet structure to the first housing portion.

[0039] As an optional implementation, one of the first and second cable outlets is provided with a positioning piece, and the other is provided with a second positioning hole for the positioning piece to be inserted.

[0040] As an alternative implementation, the first shell portion and the second shell portion are detachably connected by a fourth fastener.

[0041] As an optional implementation, the first shell portion includes a shell body and a functional mounting portion, with the shell body connected to the first shell portion; the functional mounting portion is connected to the side of the shell body opposite to the first shell portion, and the functional mounting portion has at least one functional assembly hole.

[0042] As an optional implementation, the electrical connection part includes multiple conductive posts, the first end of which is electrically connected to the power module, and the second end of which is used to be electrically connected to an external power line; multiple partitions are connected to the insulating base, and the second ends of two adjacent conductive posts are separated by a partition.

[0043] As an optional implementation, the electrical control box provided in this application further includes at least one grounding socket connected to the first box body, the grounding socket being located on the side of the power supply terminal block.

[0044] As an alternative implementation, the first end of the power-connecting part faces the back side of the terminal block protective housing, and the second end of the power-connecting part faces the front side of the terminal block protective housing.

[0045] Secondly, this application provides a heating and ventilation device, including a housing and the aforementioned electrical control box; the housing has an access port, and the second end of the electrical connection part is disposed facing the access port.

[0046] As an alternative implementation, the power terminal block is located near the bottom of the housing.

[0047] The electrical control box and HVAC equipment provided in this application allow for connections between external power lines and the power terminal block, as well as connections between the power module and the power terminal block, to be performed within different chambers. This improves convenience by allowing wiring and connection operations to be performed in two independent chambers, thereby enhancing the ease of assembling the electrical control box. Furthermore, during installation and maintenance, interference with other wiring harnesses connected to the power module is minimized, reducing installation and maintenance complexity, and improving the stability of the power module.

[0048] Furthermore, the first end of the power-connecting part extends into the receiving cavity, and the second end of the power-connecting part extends into the protective cavity. This avoids a flat design, improving both the layout flexibility and the structural compactness of the electrical control box.

[0049] In addition, the independent housing and protection cavities block the direct coupling path between high-voltage and low-voltage signals, reducing the risk of electromagnetic interference and thus improving the performance stability of the power module.

[0050] Furthermore, wiring the external power cord can be completed without disassembling the main box assembly. This not only avoids interference with other modules installed inside the main box assembly but also preserves the internal sealing of the main box assembly. Thus, the electrical control box maintains both excellent electrical control performance and good sealing. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0052] Figure 1 This is a three-dimensional structural diagram of a partial structure of the HVAC equipment provided in an embodiment of this application;

[0053] Figure 2 An exploded view of the first partial structure of the electrical control box provided in an embodiment of this application;

[0054] Figure 3 An exploded view of the first partial structure of the electrical control box provided in an embodiment of this application from another perspective;

[0055] Figure 4 A three-dimensional structural diagram of the main control module in the electrical control box provided in the embodiments of this application;

[0056] Figure 5 A schematic diagram of the third partial structure of the electrical control box provided in an embodiment of this application;

[0057] Figure 6 for Figure 5 Enlarged schematic diagram of the local structure at point A;

[0058] Figure 7 An exploded view of the fourth partial structure of the electrical control box provided in an embodiment of this application;

[0059] Figure 8 This is a schematic diagram of the structure of the filter board in the electrical control box provided in the embodiments of this application;

[0060] Figure 9 for Figure 2 An assembly perspective view of the structure shown;

[0061] Figure 10 for Figure 9 A schematic diagram of the three-dimensional structure from another perspective;

[0062] Figure 11 for Figure 9 A schematic diagram of the planar structure;

[0063] Figure 12 A three-dimensional structural diagram of the first box body in the electrical control box provided in the embodiment of this application;

[0064] Figure 13 for Figure 12 A schematic diagram of the three-dimensional structure from another perspective;

[0065] Figure 14 for Figure 13 A schematic diagram of the three-dimensional structure from another perspective;

[0066] Figure 15 A three-dimensional structural diagram of the first cover in the electrical control box provided in an embodiment of this application;

[0067] Figure 16 A schematic diagram of the planar structure of the first cover in the electrical control box provided in an embodiment of this application;

[0068] Figure 17 A schematic diagram of the connection structure between the first box cover and the transverse seal in the electrical control box provided in an embodiment of this application;

[0069] Figure 18 for Figure 17 A cross-sectional view of the structure shown;

[0070] Figure 19 for Figure 18 Enlarged schematic diagram of the local structure at point B;

[0071] Figure 20 Another three-dimensional structural diagram of the transverse seal in the electrical control box provided in the embodiments of this application;

[0072] Figure 21 for Figure 20 Enlarged schematic diagram of the local structure at point C;

[0073] Figure 22 A three-dimensional structural diagram of the second cover in the electrical control box provided in the embodiments of this application;

[0074] Figure 23 A three-dimensional structural diagram of the cover structure in the electrical control box provided in an embodiment of this application;

[0075] Figure 24 A three-dimensional structural diagram of the internal wiring terminal in the electrical control box provided in the embodiments of this application;

[0076] Figure 25 A schematic diagram of the sixth partial structure of the electrical control box provided in an embodiment of this application;

[0077] Figure 26 Another structural schematic diagram of the first box body in the electrical control box provided in the embodiment of this application;

[0078] Figure 27 A three-dimensional structural diagram of the first housing portion in the electrical control box provided in an embodiment of this application;

[0079] Figure 28 A schematic diagram of the seventh partial structure of the electrical control box provided in the embodiments of this application;

[0080] Figure 29 for Figure 28 A structural diagram from another perspective;

[0081] Figure 30 A three-dimensional structural diagram of the power terminal block in the electrical control box provided in the embodiments of this application;

[0082] Figure 31 for Figure 30 A schematic diagram of the three-dimensional structure from another perspective;

[0083] Figure 32 for Figure 14 Enlarged schematic diagram of the local structure at point D;

[0084] Figure 33 A cross-sectional view of a power connector provided in an embodiment of this application;

[0085] Figure 34 for Figure 33 A magnified view of the local structure at point E in the middle;

[0086] Figure 35 A schematic diagram of the outgoing wiring structure in the electrical control box provided in the embodiment of this application;

[0087] Figure 36 An exploded view of the wiring structure in the electrical control box provided in the embodiments of this application;

[0088] Figure 37 for Figure 36 A structural diagram from another perspective;

[0089] Figure 38 A schematic diagram of the eighth partial structure of the electrical control box provided in the embodiments of this application;

[0090] Figure 39 A schematic diagram of the mating structure between the wiring seal and the internal wire in the electrical control box provided in the embodiments of this application;

[0091] Figure 40 A three-dimensional structural diagram of the wiring seal in the electrical control box provided in the embodiments of this application;

[0092] Figure 41 A schematic diagram of the planar structure of the wiring seal in the electrical control box provided in the embodiments of this application;

[0093] Figure 42 A three-dimensional structural schematic diagram of the outgoing wire seal in the electrical control box provided in the embodiments of this application;

[0094] Figure 43 for Figure 42 A schematic diagram of the three-dimensional structure from another perspective;

[0095] Figure 44 A schematic diagram of the planar structure of the outgoing wire seal in the electrical control box provided in the embodiments of this application;

[0096] Figure 45 A schematic diagram illustrating the fit between the cover structure and the outlet seal in the electrical control box provided in this embodiment of the application;

[0097] Figure 46 for Figure 45 A schematic diagram of the planar structure shown;

[0098] Figure 47 for Figure 46 A cross-sectional view along the FF direction;

[0099] Figure 48 for Figure 47 Enlarged schematic diagram of the local structure at point G;

[0100] Figure 49 A schematic diagram of the ninth partial structure of the electrical control box provided in an embodiment of this application;

[0101] Figure 50 for Figure 49 A magnified schematic diagram of the local structure at point H.

[0102] Explanation of reference numerals in the attached figures:

[0103] 1. Housing structure; 2. Main control module; 3. Variable frequency drive module; 4. Central module; 5. Lateral seal; 6. Cover seal ring; 9. Internal wiring socket;

[0104] 11. Installation space; 12. Main box assembly; 13. Second box body; 21. Main control power board; 22. Main control board; 31. Module board; 32. Filter board; 33. Reactor; 41. Central base plate; 42. Third interface; 43. Fourth interface; 51. Sealing body; 52. Sealing lip; 53. Deformation space; 91. Insulating base; 92. Power connection post; 10. Heat dissipation channel; 20. Channel connector; 30. First wiring section; 40. Second wiring section; 50. First blocking groove; 60. Power terminal block; 70. Second blocking groove; 80. Third blocking groove; 90. Terminal block protective shell;

[0105] 111. Mounting cavity; 112. Variable frequency drive cavity; 113. Central cavity; 121. First housing; 122. First cover; 123. Second cover; 124. Cover structure; 125. First wire hole; 126. Connecting groove; 127. Second wire hole; 128. Clearance space; 129. Mounting groove; 211. Main control power supply board; 221. Main control board; 222. First interface; 223. Second interface; 311. Module board; 312. First wiring area; 313. Second wiring area; 314. Fifth interface; 315. Electrolytic capacitor; 316. First film capacitor; 317. Driver board; 318. Sixth interface; 321. Filter board; 322. Common mold inductor; 323. Second... Film capacitor; 100, housing; 911, insulating base plate; 912, through-hole part; 913, second buckle; 101, straight section; 102, curved section; 201, first pipe section; 202, second pipe section; 601, insulating base; 602, connecting part; 603, partition part; 901, protective cavity; 902, first shell part; 903, second shell part; 904, reinforcing strip structure; 110, second fastener; 120, foolproof structure; 130, terminal block seal; 140, outgoing wire structure; 150, grounding base; 160, wiring seal; 170, internal wire; 180, protective plate; 190, external wire; 200, system piping; 210, outgoing wire seal; 220, third fastener;

[0106] 1111, Outlet notch; 1121, Receiving cavity; 1122, Receiving cavity; 1211, Cold plate body; 1212, First enclosure plate; 1213, Side enclosure plate; 1214, First sub-plate; 1215, Connecting sub-plate; 1216, Second sub-plate; 1217, Enclosure plate section; 1218, First flange section; 1219, Inner peripheral wall surface; 1220, Connecting protrusion; 1230, Enclosure plate body; 1240, Flanged structure; 1250, Slot; 1260, Boss; 1262, Heat-conducting surface; 1270, Mounting port; 1280, Limiting groove; 1281, Second connecting hole; 1290, First plate surface; 1300, Second plate surface; 1310, Positioning post; 1320, Second fixing hole; 1330, Connecting part ; 1340, Positioning protrusion; 1350, Sub-enclosure plate; 1360, Positioning protrusion; 1370, External wiring space; 1221, First cover; 1222, Second flange; 1223, Cover flange; 1224, First flange; 1225, Second flange; 1231, Second cover; 1232, Third flange; 1233, First connecting ear; 1241, Cover body; 1242, Side enclosure; 1243, Protruding ridge; 1244, Fourth flange; 1251, First bottom plate hole section; 1252, First enclosure plate hole section; 1261, Slot sidewall; 1271, Second bottom plate hole section; 1272, Second enclosure plate hole section; 1291, Connecting post; 3173, First drive module; 3174, Second Drive module; 1001, Inspection port; 6011, Insulating body; 6012, Connecting flange; 6013, First positioning hole; 6014, First connecting hole; 6015, Anti-fool notch; 6016, Annular groove; 6021, First fastening hole; 6022, Conductive post; 9021, Clearance opening; 9022, Third connecting hole; 9023, Fourth connecting hole; 9024, Housing body; 9025, Functional mounting part; 9026, Functional assembly hole; 9027, First fixing hole; 9031, Power cord outlet; 1201, Anti-fool notch; 1301, Main sealing part; 1302, Sealing lip; 1303, Cavity; 1401, Cable outlet cavity; 1402, First cable outlet seat; 1403, Second cable outlet seat; 1 404. First cavity wall; 1405. Second cavity wall; 1406. Cable outlet notch; 1407. Recess; 1408. First groove; 1409. Snap-fit ​​part; 1410. Insert; 1420. Positioning piece; 1430. Second positioning hole; 1440. Operating side; 1441. Second groove; 1601. Cable passage; 1602. Connecting seat; 1603. Sealing part; 1604. First mounting hole; 1605. First sub-sealing part; 1606. Second sub-sealing part; 1607. Peripheral side wall; 1608. Sealing wall; 1609. First sealing wall; 1610. Second sealing wall; 1620. Sealing sub-wall; 1630. Sub-sealing wall; 1640. First sealing unit; 1641. First sealing rib;1642, Sealing groove; 1650, Second sealing unit; 1651, Second sealing rib; 1660, Back side of seat; 1801, Second mounting hole; 2101, Wire passage groove; 2102, Sealing body; 2103, Wire passage part; 2104, Slot; 2105, First groove wall; 2106, Second groove wall; 2107, Limiting hole; 2108, Wire passage sub-part; 2109, End connection part; 2111, First groove segment; 2112, Second groove segment; 2120, Clearance area; 2130, First sealing surface; 2140, Second sealing surface; 2150, Extension connection part; 2151, Sub-connection part; 2160, Mating hole; 2170, Clearance groove.

[0107] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0108] Please combine Figures 1 to 4 , Figure 1 This is a three-dimensional structural diagram of a partial structure of the HVAC equipment provided in an embodiment of this application. Figure 2 This is an exploded structural diagram of a first partial structure of the electrical control box provided in an embodiment of this application. Figure 3 This is an exploded view of the first partial structure of the electrical control box provided in this embodiment of the application. As shown in the figure, this embodiment provides an electrical control box, including a box structure 1, a main control module 2, a frequency converter drive module 3, and a central module 4. The box structure 1 forms an installation space 11 to accommodate the main control module 2, the frequency converter drive module 3, and the central module 4.

[0109] Please continue to combine Figures 4 to 6 , Figure 4 This is a three-dimensional structural diagram of the main control module in the electrical control box provided in an embodiment of this application. Figure 5 This is a schematic diagram of the third partial structure of the electrical control box provided in an embodiment of this application. Figure 6 for Figure 5 A magnified view of the partial structure at point A. As shown in the figure, the main control module 2 includes a main control power board 21 and a main control board 22 that are electrically connected. The main control board 22 includes a main control base plate 221, a first interface 222 and a second interface 223. Both the first interface 222 and the second interface 223 are disposed on the main control base plate 221. The central module 4 includes a central base plate 41, a third interface 42 and a fourth interface 43. The first interface 222 is communicatively connected to the third interface 42, and the second interface 223 is electrically connected to the fourth interface 43. The second interface 223 is the power supply port of the central module 4.

[0110] The variable frequency drive module 3 includes a module board 31, a filter board 32, and a reactor 33. Both the filter board 32 and the reactor 33 are electrically connected to the module board 31. Please continue to combine... Figure 7 , Figure 7 This is an exploded view of the fourth partial structure of the electrical control box provided in the embodiment of this application. The module board 31 includes a module base plate 311. A first wiring area 312 and a second wiring area 313 are formed on the module base plate 311. The first wiring area 312 is electrically connected to the compressor, and the second wiring area 313 is electrically connected to the main control power board 21. At the same time, the second wiring area 313 is electrically connected to the filter board 32.

[0111] Furthermore, the module substrate 311 is also provided with a fifth interface 314, an electrolytic capacitor 315 and a first film capacitor 316. The fifth interface 314 is electrically connected to the fan, and the electrolytic capacitor 315 and the first film capacitor 316 are disposed alternately on the module substrate 311.

[0112] In order to realize the driving function of the variable frequency drive module 3, the module board 31 also includes a drive board 317. The drive board 317 includes a first chip, a second chip, a first drive module 3173 and a second drive module 3174 disposed on the module substrate 311. The first chip and the first drive module 3173 are used to drive the compressor, and the second chip and the second drive module 3174 are used to drive the fan.

[0113] The drive board 317 includes a first drive module 3173, a first chip, a second drive module 3174, and a second chip. The first drive module 3173 and the first chip are used to control the compressor, and the second drive module 3174 and the second chip are used to control the fan.

[0114] Please continue to combine Figure 8 , Figure 8 This is a schematic diagram of the structure of the filter board in the electrical control box provided in the embodiment of this application. As shown in the figure, the filter board 32 includes a filter substrate 321, on which a common-mode inductor 322 and a second thin-film capacitor 323 are disposed, with the common-mode inductor 322 and the second thin-film capacitor 323 arranged at intervals.

[0115] Of course, each module has its own function. Specifically, the main control module 2 is responsible for receiving user commands from the indoor unit (such as setting the temperature or operating mode) and real-time data from various sensors and valves (such as ambient temperature and pressure values) transmitted from the central module 4. Through its built-in control algorithm, it dynamically calculates the required cooling or heating intensity and generates corresponding control signals. The inverter drive module 3 receives commands from the main control module 2 and converts the input DC power into adjustable AC power to control the speed of the compressor and / or fan. The central module 4 is used to transmit real-time data from various sensors and valves to the main control module 2 and to distribute stable power to other devices.

[0116] It should be noted that one module board 31 can control two fans and one compressor, while an outdoor unit can be configured with more than two fans and more than one compressor. For example, if the outdoor unit is configured with four fans and two compressors, then the aforementioned module board 31 can be set to two. In this case, an electrical connection is also required between the two module boards 31. Therefore, the module base plate 311 is also provided with a sixth interface 318, which enables the electrical connection between the two module boards 31.

[0117] In related technologies, the main control module 2, the frequency converter drive module 3, and the central module 4 are all housed in the same cavity. This arrangement has adverse effects on the electrical isolation between the modules, the overall structural compactness of the control box, heat dissipation, wiring, and the overall connection of the outdoor unit.

[0118] Based on this, in this embodiment, the main control module 2, the frequency converter drive module 3, and the central module 4 are placed in separate cavities. That is, the installation space 11 can include separate main control cavity (hereinafter referred to as installation cavity 111), frequency converter drive cavity 112, and central cavity 113. The main control module 2 is installed in the main control cavity, the frequency converter drive module 3 is installed in the frequency converter drive cavity 112, and the central module 4 is installed in the central cavity 113.

[0119] It is understandable that, since the central module 4 needs to be connected to the system valve body, placing it near the valve body is beneficial for the installation layout of the entire electrical control box in the outdoor unit. Therefore, in some embodiments, the box structure 1 may include a main box assembly 12 and a second box 13 that are independent of each other. The main box assembly 12 forms a main control cavity and a frequency converter drive cavity 112, and the second box 13 forms a central cavity 113.

[0120] Because the electrical components of module board 31 and filter board 32 are different, their power outputs differ significantly. Furthermore, module board 31 is more prone to malfunctions during outdoor unit operation. Therefore, to achieve separation of strong and weak currents and to facilitate future maintenance of the electrical control box provided in this embodiment, module board 31 and filter board 32 can be housed in different cavities. In a specific embodiment, the frequency converter drive cavity 112 may include two independent receiving cavities 1121 and accommodating cavities 1122. Receiving cavities 1121 and accommodating cavities 1122 are arranged along the thickness direction of the main box assembly 12. Module board 31 is installed in receiving cavity 1121, and filter board 32 is installed in accommodating cavity 1122. Receiving cavity 1121 is located closer to the inspection port 1001 of housing 100 than accommodating cavity 1122; that is, receiving cavities 1121 and accommodating cavities 1122 are arranged along the thickness direction of the main box assembly 12. This configuration, while taking into account the separation of strong and weak currents and facilitating maintenance, also improves the structural compactness of the electrical control box provided in this embodiment in both the width and height directions of the main box assembly 12 compared to the flat design of module boards and filter boards in related technologies.

[0121] Regarding the positional relationship between the receiving cavity 1121 and the main control cavity, the main control cavity and the receiving cavity 1121 can be spaced apart and arranged side by side. This balances structural compactness and separation. Specifically, when the electrical control box provided in this embodiment is installed on the housing 100, with the side where the access port 1001 is located as the front of the housing 100, the receiving cavity 1121 is located above the main control cavity and in front of the receiving cavity 1122.

[0122] It should be noted that the thickness direction of the aforementioned main box assembly 12 is parallel to... Figure 1 , Figure 2 , Figure 3 as well as Figure 7 The XX axis direction is consistent with the width direction of the aforementioned main box assembly 12. Figure 1 , Figure 2 , Figure 3 as well as Figure 7 The Y2-Y2 axis direction is consistent with the height direction of the main box assembly 12 mentioned above. Figure 1 , Figure 2 , Figure 3 as well as Figure 7 The ZZ axes are aligned.

[0123] In other words, the module board 31 and the filter board 32 are respectively disposed in two cavities arranged opposite to each other. In the specific implementation of this embodiment, there are two module boards 31, and both module boards 31 need to be electrically connected to the filter board 32. The area on the module board 31 that is electrically connected to the filter board 32 can also be the second wiring area 313 mentioned above. If the second wiring areas 313 of the two module boards 31 can be arranged adjacent to each other, the filter board 32 can be made smaller, thereby further improving the structural compactness of the electrical control box provided in this embodiment.

[0124] Based on this, in some alternative implementations, the two module boards 31 are arranged symmetrically at the center, so that the second wiring areas 313 of the two module boards 31 can be concentrated in the same area, so as to facilitate the compact design of the electrical control box.

[0125] In order to form the aforementioned receiving cavity 1121, receiving cavity 1122, and main control cavity, please continue to combine... Figures 9 to 11 , Figure 9 for Figure 2 An assembly perspective view of the structure shown. Figure 10 for Figure 9 A schematic diagram of the three-dimensional structure from another perspective. Figure 11 for Figure 9 A schematic diagram of the planar structure is shown. In some embodiments, the main box assembly 12 includes a first box body 121, a first box cover 122, a second box cover 123, and a cover structure 124. The first box cover 122, the second box cover 123, and the cover structure 124 all cover the first box body 121. The first box cover 122 and the first box body 121 enclose a receiving cavity 1121, the second box cover 123 and the first box body 121 enclose a receiving cavity 1122, and the cover structure 124 and the first box body 121 enclose a mounting cavity 111. The first box cover 122 faces the access port.

[0126] Furthermore, please combine Figures 12 to 14 As shown, Figure 12 This is a three-dimensional structural diagram of the first box body in the electrical control box provided in the embodiment of this application. Figure 13 for Figure 12 A schematic diagram of the three-dimensional structure from another perspective. Figure 14 for Figure 13 A three-dimensional structural diagram from another perspective. As shown in the figure, the first box body 121 includes a cold plate body 1211 and a first enclosure plate 1212. The first enclosure plate 1212 is connected to the cold plate body 1211, and the first box cover 122 is connected to the first enclosure plate 1212. The cold plate body 1211, the first enclosure plate 1212, and the first box cover 122 together enclose and form a receiving cavity 1121. The cold plate body 1211 and the second box cover 123 enclose and form a receiving cavity 1122. The receiving cavity 1122 and the receiving cavity 1121 are located on different sides of the cold plate body 1211.

[0127] It should be noted that, regarding the formation of the accommodating cavity 1122, the first box body 121 may also include a second enclosure plate, and the second box cover 123 is connected to the second enclosure plate. The cold plate body 1211, the second enclosure plate, and the second box cover 123 together enclose and form the accommodating cavity 1122.

[0128] In order to form the aforementioned mounting cavity 111, the first box body 121 also includes a side panel 1213, which is connected to the cold plate body 1211, and the cover structure 124 is connected to the side panel 1213. The cold plate body 1211, the side panel 1213, and the cover structure 124 together enclose the mounting cavity 111.

[0129] It is understandable that if at least a portion of the first box body 121 is formed in one piece, the processing efficiency of the first box body 121 will be improved and the processing cost of the first box body 121 will be reduced. Therefore, at least one of the first enclosure 1212, the second enclosure, and the side enclosure 1213 can be an integral structure with the cold plate body 1211.

[0130] In the specific implementation of this embodiment, since there are two ways to form the accommodating cavity 1122, the specific structure of the first box body 121 should also be in two ways. When the accommodating cavity 1122 is formed only by the second box cover 123 and the cold plate body 1211, the first enclosure 1212, the side enclosure 1213 and the cold plate body 1211 are an integral structure. When the accommodating cavity 1122 is formed by the second box cover 123, the second enclosure and the cold plate body 1211, the first enclosure 1212, the second enclosure, the side enclosure 1213 and the cold plate body 1211 are an integral structure.

[0131] Based on the positional relationship of the aforementioned receiving cavity 1121, receiving cavity 1122, and mounting cavity 111, in a specific embodiment of this invention, the cold plate body 1211 includes a first sub-plate 1214, a connecting sub-plate 1215, and a second sub-plate 1216 in sequence. The bottom walls of the receiving cavity 1121 and the receiving cavity 1122 are formed on opposite sides of the first sub-plate 1214, and the bottom wall of the mounting cavity 111 is formed on the front side of the second sub-plate 1216.

[0132] The first enclosure 1212 includes an enclosure portion 1217 and a first flange portion 1218 connected together. The enclosure portion 1217 is connected to the cold plate body 1211, and the first flange portion 1218 extends toward the outside of the receiving cavity 1121.

[0133] Please continue to combine Figure 15 and Figure 16 , Figure 15 This is a three-dimensional structural diagram of the first cover in the electrical control box provided in an embodiment of this application. Figure 16 This is a schematic diagram of the planar structure of the first cover in the electrical control box provided in this application embodiment. As shown in the figure, the first cover 122 includes a first cover portion 1221, a second flange portion 1222, and a cover flange 1223 connected together. The first cover portion 1221 and the second flange portion 1222 together form the main cover of the first cover 122. The inner wall surface of the first cover portion 1221 forms part of the inner wall surface of the receiving cavity 1121. The second flange portion 1222 extends toward the outside of the receiving cavity 1121 and abuts against the first flange portion 1218. The cover flange 1223 is located inside the receiving cavity 1121.

[0134] It is understandable that if the first cover 122 and the first enclosure 1212 cannot be sealed together, dust, liquid or flying insects outside the receiving cavity 1121 will enter the receiving cavity 1121 and damage the module substrate 311 or its electronic components, thus affecting the normal use of the control box.

[0135] Therefore, please continue to combine Figures 17 to 19 , Figure 17 This is a schematic diagram of the connection structure between the first cover and the transverse seal in the electrical control box provided in an embodiment of this application. Figure 18 for Figure 17 The sectional view of the structure shown. Figure 19 for Figure 18 A magnified view of the partial structure at point B. Based on this, in order to ensure the sealing of the cavity 1121, the electrical control box provided in this embodiment also includes a transverse sealing member 5, and the inner wall surface of the surrounding plate portion 1217 forms an inner peripheral wall surface 1219; the transverse sealing member 5 is installed on the cover flange and presses against the inner peripheral wall surface 1219.

[0136] The transverse seal 5 includes a sealing body 51 and a sealing lip 52. The sealing body 51 is installed on the cover flange 1223, and the sealing lip 52 is located on the side of the sealing body 51 facing the inner peripheral wall 1219, and the sealing lip 52 abuts against the inner peripheral wall 1219.

[0137] To improve the sealing performance of the transverse seal 5, in some optional embodiments, the sealing lip 52 extends obliquely from the sealing body 51 toward the side where the first cover 1221 is located. Thus, when the first cover 122 is installed on the first box body 121, the oblique extension of the sealing lip 52 creates a deformation space 53 between the sealing lip 52 and the sealing body 51. During installation, this deformation space 53 is compressed to improve the assembly efficiency between the first cover 122 and the first box body 121. After the first cover 122 and the first box body 121 are assembled, the deformation space 53 expands, allowing the sealing lip 52 to fit tightly against the inner peripheral wall surface 1219. This ensures the sealing performance within the receiving cavity 1121.

[0138] Specifically, such as Figure 19 As shown, the cover flange 1223 includes a first flange portion 1224 and a second flange portion 1225 connected together. The first flange portion 1224 is connected to the first cover portion 1221, and the second flange portion 1225 is perpendicular to the first flange portion 1224. The opposite ends of the sealing body 51 abut against the second flange portion 1222 and the second flange portion 1225, respectively. In this way, the position of the transverse seal 5 can be restricted, thereby improving the assembly efficiency between the transverse seal 5 and the first cover 122.

[0139] like Figure 19 As shown, in some alternative embodiments, the number of sealing lips 52 can be set to two at intervals along the thickness direction of the main box assembly 12.

[0140] Please continue to combine Figure 20 and Figure 21 , Figure 20 This is a three-dimensional structural diagram of another transverse seal in the electrical control box provided in an embodiment of this application. Figure 21 for Figure 20 A magnified view of the partial structure at point C. As shown in the figure, in some alternative embodiments, the number of sealing lips 52 can also be set to three at intervals along the thickness direction of the main box assembly 12.

[0141] It should be noted that in other embodiments, the number of sealing lips 52 can be set to more at intervals along the thickness direction of the main box assembly 12, such as four or five. Here, the number of sealing lips 52 is not specifically limited.

[0142] In order to connect the first box cover 122 to the first enclosure 1212, the upper and lower sides of the second flange 1222 can be connected to the first box cover 122 and the first enclosure 1212 by screws or other threaded fasteners.

[0143] like Figure 14 As shown, in some embodiments, in order to achieve the connection between the first sub-plate 1214 and the second box cover 123, the first sub-plate 1214 is provided with a connecting protrusion 1220 that matches the contour shape of the accommodating cavity 1122. The connecting protrusion 1220 and the cold plate body 1211 are integral structures, and the protruding direction of the connecting protrusion 1220 is consistent with the thickness direction of the main box assembly 12.

[0144] Please continue to combine Figure 22 As shown, Figure 22This is a three-dimensional structural diagram of the second cover in the electrical control box provided in the embodiment of this application. As shown in the figure, the second cover 123 includes a second cover portion 1231 and a third flange portion 1232. The second cover portion 1231 forms the top wall and side wall of the accommodating cavity 1122. The third flange portion 1232 is connected to the second cover portion 1231 and extends toward the outside of the accommodating cavity 1122. The third flange portion 1232 is provided with a plurality of spaced first connecting ears 1233. The first connecting ears 1233 and the first sub-plate 1214 can be connected together by threaded fasteners.

[0145] Of course, the second cover 123 should also be sealed to the first sub-plate 1214. Therefore, in some embodiments, a cover sealing ring 6 adapted to the shape of the third flange 1232 can be embedded on the third flange 1232. The cover sealing ring 6 can press against the surface of the first sub-plate 1214 and the outside of the connecting protrusion 1220 to achieve a sealed connection between the second cover 123 and the first sub-plate 1214.

[0146] Furthermore, please continue to combine Figure 23 As shown, Figure 23 This is a three-dimensional structural diagram of the cover structure in the electrical control box provided in this application embodiment. As shown in the figure, the cover structure 124 includes a cover body 1241, a side portion 1242, a protruding ridge portion 1243, and a fourth flange portion 1244. The cover body 1241 forms part of the inner wall of the mounting cavity 111. The side portion 1242 is connected to the outer edge of the cover body 1241. The protruding ridge portion 1243 is connected to the side of the side portion 1242 facing the bottom wall of the mounting cavity 111. The fourth flange portion 1244 is connected to the outer edge of the side portion 1242, and the fourth flange portion 1244 extends along the thickness direction of the main box assembly 12 towards the side of the bottom wall of the mounting cavity 111.

[0147] In order to enable the cover structure 124 and the side panel 1213 to enclose and form the mounting cavity 111, in some embodiments, the side panel 1213 includes a panel body 1230 and a flange structure 1240. The panel body 1230 is connected to the second sub-plate 1216, and the flange structure 1240 is connected to the panel body 1230 and extends outward toward the mounting cavity 111. A fourth flange portion 1244 is disposed around the periphery of the flange structure 1240, so that the cover structure 124 and the side panel 1213 enclose and form the mounting cavity 111.

[0148] As described above, since module board 31 needs to be electrically connected to filter board 32, and since module board 31 and filter board 32 are disposed in opposite cavities, and the bottom walls of both accommodating cavity 1121 and accommodating cavity 1122 are formed by first sub-board 1214, the electrical control box provided in this embodiment also includes internal terminal block 9; internal terminal block 9 passes through first sub-board 1214, and module board 31 and filter board 32 are respectively electrically connected to internal terminal block 9.

[0149] Please continue to combine 3 and Figure 24 As shown, Figure 24 This is a three-dimensional structural diagram of the internal wiring terminal in the electrical control box provided in this application embodiment. As shown in the figure, the internal wiring terminal 9 includes an insulating base 91 and a terminal post 92 passing through the insulating base 91. The two ends of the terminal post 92 are electrically connected to the module board 31 and the filter board 32, respectively. The insulating base 91 includes an insulating base plate 911 and a through portion 912 connected to the insulating base plate 911. The terminal post 92 passes through the through portion 912. A second latch 913 is provided on the through portion 912. The insulating base plate 911 abuts against the bottom wall of the accommodating cavity 1122. The through portion 912 passes through the first sub-plate 1214, and the second latch 913 engages with the slot 1250 on the first sub-plate 1214 to connect the internal wiring terminal 9 to the first sub-plate 1214.

[0150] Understandably, the control box generates a significant amount of heat during the operation of the outdoor unit. Therefore, appropriate heat dissipation measures are typically implemented to cool the control box. In relevant technologies, air cooling is commonly used to dissipate heat inside the control box. Specifically, a fan is placed near the heat-generating components or within a separate air duct, using forced convection to accelerate airflow and dissipate heat from the electronic components inside the control box. However, this cooling method, due to the presence of a fan, occupies a considerable amount of space, hindering a compact internal design for the control box.

[0151] Based on this, this embodiment also provides a heat dissipation structure, and the electrical control box provided in this embodiment includes this heat dissipation structure. The heat dissipation structure includes the aforementioned first box body 121 and first box cover 122, and a heat dissipation channel 10 is provided on the inner wall of the receiving cavity 1121 formed by the first box body 121 and the first box cover 122. The heat dissipation channel 10 is used for the flow of heat exchange medium. It should be noted that the heat dissipation channel 10 can be connected to the system piping 200 of the outdoor unit. That is to say, the heat exchange medium flowing in the system piping 200, such as refrigerant, can be used to dissipate heat from the electrical control box.

[0152] Thus, compared with the fan-based heat dissipation method in related technologies, the absence of a drive structure saves space and improves the structural compactness within the housing 1121. Furthermore, the heat exchange medium within the heat dissipation channel 10 can utilize the same heat exchange medium used in the system's cooling or heating processes, eliminating the need for additional heat exchange medium and thereby improving its utilization rate.

[0153] Furthermore, fans in related technologies are prone to failure after a period of use. By integrating the heat dissipation channel 10 onto the first housing 121, heat exchange occurs between the heat exchange medium flowing within the heat dissipation channel 10 and the module board 31, thereby dissipating the heat generated by the module board 31. This heat dissipation method, lacking a mechanical drive structure, is less prone to failure and therefore offers higher operational stability.

[0154] It should be noted that in this embodiment, both the cold plate body 1211 and the first enclosure plate 1212 can be used to generate heat, and are not limited to traditional unidirectional heat dissipation. The cold plate body 1211, the first enclosure plate 1212 and the first cover 122 are constructed into a box-shaped heat sink, which can receive the heat dissipated by the power element from multiple directions such as the bottom and the circumference, forming multi-directional radiative heat dissipation. The cold plate body 1211 and the first enclosure plate 1212 work together to greatly increase the space and direction of radiative heat dissipation. The heat generated by the power element can be quickly diffused to either the cold plate body 1211 or the first enclosure plate 1212, realizing rapid air cooling in the cavity 1121 and uniformly reducing the temperature in all parts of the cavity 1121. Meanwhile, both the cold plate body 1211 and the first enclosure plate 1212 are located on the outer layer. The first enclosure plate 1212 surrounds the power element. The first enclosure plate 1212 is set in the thickness direction of the main box assembly 12 to dissipate heat by utilizing the assembly space of the power element. The first enclosure plate 1212 and the cold plate body 1211 together form a box-shaped structure to accommodate the power element, eliminating the need for additional installation space, simplifying the structure of the control box, and making it more conducive to the miniaturization design of the control box.

[0155] There are three possible ways to set the heat dissipation channel 10: the first is that the heat dissipation channel 10 is set on the first sub-board 1214; the second is that the heat dissipation channel 10 is set in the circumferential direction of the surrounding plate portion 1217; and the third is that heat dissipation channels 10 are set in the circumferential direction of both the first sub-board 1214 and the surrounding plate portion 1217.

[0156] It is understandable that, for the second or third method described above, the heat dissipation effect of the heat dissipation channel 10 is best if its extension length along the circumference of the surrounding plate portion 1217 is the longest. Therefore, in some optional embodiments, the heat dissipation channel 10 is arranged around the circumference of the surrounding plate portion 1217. That is, the length of the heat dissipation channel 10 is equal to the circumferential length of the surrounding plate portion 1217 in the circumferential direction.

[0157] Regarding the first or third method mentioned above, in order to facilitate the manufacturing of the first box 121 and improve the manufacturing efficiency of the electrical control box provided in this embodiment, the heat dissipation channel 10 and the first sub-board 1214 are an integral structure, that is, the heat dissipation channel 10 and the cold plate body 1211 are an integral structure, that is, the heat dissipation channel 10 and the first box 121 are an integral structure.

[0158] Specifically, during the manufacturing process of the first box body 121, the heat dissipation channel 10 can be formed onto the cold plate body 1211 during injection molding using methods such as pre-embedded parts. Here, the forming method of the heat dissipation channel 10 is not limited.

[0159] Thus, since the formation of both the accommodating cavity 1122 and the mounting cavity 111 depends on the cold plate body 1211, the heat dissipation target of the aforementioned heat dissipation channel 10 is not only the module board 31 located in the accommodating cavity 1121, but also the filter board 32 located in the accommodating cavity 1122 and the main control module 2 located in the mounting cavity 111, so that each module installed in the main box assembly 12 can be effectively dissipated.

[0160] Of course, the more regular the longitudinal cross-sectional shape of the heat dissipation channel 10, the easier it is to form the heat dissipation channel 10, and the flow resistance of the heat exchange medium in the heat dissipation channel 10 will not be too large. Therefore, in some embodiments, the longitudinal cross-sectional shape of the heat dissipation channel 10 is circular, semi-circular or rectangular.

[0161] In a specific implementation of this embodiment, the longitudinal cross-sectional shape of the heat dissipation channel is circular.

[0162] Since the module board 31 includes a driver board 317, and the driver board 317 includes a first chip, a second chip, a first driver module 3173 and a second driver module 3174, and the power of the first driver module 3173 is greater than the power of the first chip, and the power of the second driver module 3174 is greater than the power of the second chip, but since both the chip and the driver module generate heat, the first chip, the second chip, the first driver module 3173 and the second driver module 3174 are all located above the heat dissipation channel 10.

[0163] Of course, in other embodiments, the cavity 1121 may contain not the module board 31, but other power modules, which are named the first power module. Therefore, in some other embodiments, the first power module includes at least one first power component and at least one second power component; the power of the first power component is greater than the power of the second power component, and the first and second power components are respectively positioned above the heat dissipation channel 10. This enables effective heat dissipation for the first power module. The first power module can be compared to the module board 31 in this embodiment, the first power component can be compared to the first drive module 3173 and the second drive module 3174 in this embodiment, and the second power component can be compared to the first chip and the second chip in this embodiment. In the following description, the first power component and the second power component will be compared in this analogy and will not be elaborated further.

[0164] Please see Figure 5 , Figure 12 and Figure 13 As shown, it can be understood that because the power of the first power component and the second power component are different, the heat generated by the first power component and the second power component are different. Therefore, the heat dissipation of the first power component and the second power component should also be different in order to improve the heat dissipation efficiency of the heat dissipation structure provided in this embodiment. Therefore, the heat dissipation channel 10 includes a plurality of straight segments 101 and a plurality of arc segments 102; the plurality of straight segments 101 and the plurality of arc segments 102 are connected in an alternating manner, at least one first power component is correspondingly arranged with an arc segment 102, and at least one second power component is correspondingly arranged with a straight segment 101.

[0165] The extension direction of the straight segment 101 is consistent with the extension direction of the bottom wall of the receiving cavity 1121, that is, the extension direction of the straight segment 101 is consistent with the extension direction of the surface of the first sub-plate 1214. For example, the extension direction of the straight segment 101 can be consistent with the width direction of the main box assembly 12, or it can be consistent with the height direction of the main box assembly 12, or it can have an angle with either of the above two directions. As long as the extension direction of the straight segment 101 is perpendicular to the thickness direction of the main box assembly 12, the purpose of this embodiment is satisfied.

[0166] Understandably, the flow channel length of the curved segment 102 is greater than that of the straight segment 101. Therefore, the curved segment 102 corresponds to the first power component with higher heat generation, while the straight segment 101 corresponds to the second power component with lower heat generation. This means that the total flow rate of the heat exchange medium flowing through the first power component is greater than that flowing through the second power component. This results in more heat being carried away from the first power component, allowing it to return to its normal operating temperature more quickly.

[0167] Of course, if the flow rate of the heat exchange medium flowing through the first power component is greater than the flow rate of the heat exchange medium flowing through the second power component per unit time, the heat dissipation efficiency of the heat dissipation structure provided in this embodiment can also be improved. Therefore, in some embodiments, the cross-sectional area of ​​the heat dissipation channel 10 corresponding to the first power component is greater than the cross-sectional area of ​​the heat dissipation channel 10 corresponding to the second power component. It should be noted that the cross-sectional area here can be either the longitudinal cross-sectional area or the cross-sectional area.

[0168] To further improve the heat dissipation efficiency of the heat dissipation structure provided in this embodiment, in some optional embodiments, a boss 1260 is formed on the bottom wall of the receiving cavity 1121, and a heat-conducting surface 1262 is formed on the surface of the boss 1260 facing the first power module. In this way, by setting the boss 1260, the distance between the first power module and the bottom wall of the receiving cavity 1121 can be reduced, and the heat-conducting surface 1262 can receive the heat generated by the first power module to dissipate heat from the first power module.

[0169] In this embodiment, since the first driving module 3173 and the second driving module 3174 generate a large amount of heat, the aforementioned heat-conducting surface 1262 is configured to receive the heat generated by the first driving module 3173 and / or the second driving module 3174. This allows the first driving module 3173 and / or the second driving module 3174 to directly contact the heat-conducting surface 1262, thereby improving the heat dissipation efficiency of the first driving module 3173 and / or the second driving module 3174, and further enhancing the heat dissipation effect of the heat dissipation structure provided in this embodiment.

[0170] Furthermore, in a specific embodiment of this invention, two protrusions 1260 are formed on the bottom wall of the cavity 1121. One protrusion 1260 corresponds to the first driving module 3173, and the other protrusion 1260 corresponds to the second driving module 3174. This allows the heat dissipation structure provided in this embodiment to effectively dissipate heat from both the first driving module 3173 and the second driving module 3174.

[0171] It should be noted that, as Figure 7 As shown, since the area of ​​the end face of the second driving module 3174 facing the first sub-board 1214 is smaller than the area of ​​the end face of the first driving module 3173 facing the first sub-board 1214, in the specific implementation of this embodiment, the area of ​​the heat-conducting surface 1262 corresponding to the second driving module 3174 is smaller than the area of ​​the heat-conducting surface 1262 corresponding to the first driving module 3173.

[0172] Of course, if a portion of the heat dissipation channel 10 can be provided inside the boss 1260, the heat dissipation efficiency for the first drive module 3173 and the second drive module 3174 can be further improved. Therefore, in some optional embodiments, a portion of the heat dissipation channel 10 is located inside the boss 1260. This allows the heat generated by the first drive module 3173 and the second drive module 3174 to be transferred to the first daughter board 1214 more quickly and in greater quantities, thereby improving heat dissipation efficiency.

[0173] If the length of the heat dissipation channel 10 located inside the boss 1260 is large, the heat conduction effect of the boss 1260 can be further improved. Based on this, in some embodiments, the arc segment 102 is located inside the boss 1260. In this way, the heat conduction effect of the boss 1260 can be further improved, so as to effectively dissipate heat from the first drive module 3173 and the second drive module 3174.

[0174] Since the components in contact with the heat-conducting surface 1262 are high-power components, such as the first drive module 3173 and the second drive module 3174 mentioned above, the flow rate of the heat exchange medium per unit time and the cross-sectional area of ​​the heat dissipation channel 10 should differ from those inside the boss 1260 for areas with low heat generation. This improves the accuracy and efficiency of heat dissipation while allowing the space occupied by the heat dissipation channel 10 to be more suitable. Therefore, in some optional embodiments, the cross-sectional area of ​​the heat dissipation channel 10 located inside the boss 1260 is larger than that of the heat dissipation channel 10 located outside the boss 1260. This ensures that the flow rate of the heat exchange medium flowing through the boss 1260 is greater than the flow rate of the heat exchange medium flowing through the heat dissipation channel 10 outside the boss 1260. This allows for an adaptive design of the heat dissipation channel 10 based on the power of the specific power module or power component, improving heat dissipation efficiency while designing a reasonable shape for the heat dissipation channel 10.

[0175] To connect the heat dissipation channel 10 to the system piping 200, the electrical control box provided in this embodiment also includes a channel connector 20, which is connected to the heat dissipation channel 10. The channel connector 20 is arranged circumferentially along the first enclosure 1212, and the channel connector 20 and the first enclosure 1212 of the heat dissipation structure are integrally formed. Thus, the connection between the heat dissipation channel 10 and the system piping 200 can be achieved through the arrangement of the channel connector 20. Furthermore, the integral design of the channel connector 20 and the first enclosure 1212 further improves the processing efficiency of the first box 121 and reduces the processing cost of the first box 121.

[0176] In a specific embodiment of this invention, the flow channel connector 20 includes a first pipe section 201 and a second pipe section 202. The first pipe section 201 is connected to the first enclosure plate 1212, and the second pipe section 202 is connected to the end of the first pipe section 201 away from the first enclosure plate 1212. The extension direction of the second pipe section 202 forms an angle with the extension direction of the first pipe section 201. This design achieves both the integral molding of the flow channel connector 20 and the cold plate body 1211, and the connection between the flow channel connector 20 and the system piping 200. This minimizes processing difficulty and cost, facilitating connection to the system piping 200 and avoiding interference with other structures within the housing 100.

[0177] It should be noted that the extension direction of the second pipe segment 202 can be determined according to the actual piping layout of the system piping 200. That is, the angle between the first pipe segment 201 and the second pipe segment 202 is determined according to the actual piping layout of the system piping 200. Here, no specific restrictions are placed on the angle between the first pipe segment 201 and the second pipe segment 202.

[0178] By setting the first pipe section 201 and the second pipe section 202 at an angle to each other, it is shown that the second pipe section 202 of the flow channel connector 20 can be bent in any direction to meet the connection between the system piping 200 extending in any direction and the second pipe section 202. This improves the versatility of the electrical control box provided in this embodiment.

[0179] In a specific embodiment of this invention, the extension direction of the first pipe segment 201 is consistent with the width direction of the first housing 121, and the extension direction of the second pipe segment 202 is consistent with the thickness direction of the first housing 121. Of course, in some other embodiments, the first pipe segment 201 and the second pipe segment 202 may extend in other directions, and no specific limitations are imposed here.

[0180] In other embodiments, the flow channel connector 20 may only have a first pipe section 201. In this case, the extension direction of the first pipe section 201 is consistent with the horizontal direction, that is, the extension direction of the first pipe section 201 is consistent with the width direction of the first housing 121. In this case, the direction of the connector of the system piping 200 can be adjusted according to the actual situation to facilitate the arrangement of the system piping 200.

[0181] That is, regardless of whether the flow channel connector 20 is composed of a first pipe section 201 and a second pipe section 202, or only has a first pipe section 201, the extension direction of the first pipe section 201 is perpendicular to the enclosure portion 1217 connected to it.

[0182] It is understood that both the compressor's wiring plug and the fan's wiring plug need to be connected to the electrical control box provided in this embodiment. Therefore, in some embodiments, the electrical control box provided in this embodiment further includes at least one first wiring portion 30 and at least one second wiring portion 40. The first wiring portion 30 is configured to connect to the compressor's wiring plug, and the second wiring portion 40 is configured to connect to the fan's wiring plug. The first wiring portion 30 and the second wiring portion 40 are arranged circumferentially along the first enclosure 1212 and are integrally formed with the first enclosure 1212. In this way, on the one hand, the connection between the electrical control box provided in this embodiment and the compressor's wiring plug and the fan's wiring plug can be realized; on the other hand, the integral molding design can improve the processing efficiency of the first wiring portion 30 and the second wiring portion 40, and thus improve the processing efficiency of the first box body 121.

[0183] It is understandable that, because heat dissipation channels 10 are formed on the cold plate body 1211, the area with heat dissipation channels 10 has a lower temperature. If this lower temperature is transferred to the compressor's wiring plug or the fan's wiring plug, condensation may occur on the compressor's wiring plug or the fan's wiring plug. Therefore, in order to avoid this phenomenon to a certain extent, please refer to... Figure 7 , Figures 12 to 14 As shown, a first blocking groove 50 is provided between the heat dissipation channel 10 near the first wiring portion 30 and / or the second wiring portion 40 and the first wiring portion 30 and / or the second wiring portion 40. Thus, by providing the first blocking groove 50, the lower temperature in the area where the heat dissipation channel 10 is located can be prevented to a certain extent from being transferred to the first wiring portion 30 and / or the second wiring portion 40, thereby preventing short circuits in the compressor's wiring plug and / or the fan's wiring plug to a certain extent.

[0184] In other words, a first blocking groove 50 can be provided between the heat dissipation channel 10 near the first wiring portion 30 and the first wiring portion 30; a first blocking groove 50 can be provided between the heat dissipation channel 10 near the second wiring portion 40 and the second wiring portion 40; a first blocking groove 50 can be provided between the heat dissipation channel 10 near the first wiring portion 30 and the first wiring portion 30, and between the heat dissipation channel 10 near the second wiring portion 40 and the second wiring portion 40.

[0185] In some embodiments, a first blocking groove 50 is disposed on the first sub-plate 1214 and extends through the first sub-plate 1214, that is, the first blocking groove 50 connects the receiving cavity 1121 and the receiving cavity 1122. Moreover, the shape of the first blocking groove 50 can be a strip groove, and the extending direction of the first blocking groove 50 is consistent with the height direction of the main box assembly 12. Furthermore, multiple first blocking grooves 50 can be provided, and the multiple first blocking grooves 50 are arranged at intervals along the height direction of the main box assembly 12.

[0186] It should be noted that, since the heat generation of the main control module 2 is lower than that of the frequency converter drive module 3, in this embodiment, a heat dissipation channel 10 is not provided in the mounting cavity 111. Instead, the heat dissipation of the main control module 2 is achieved through heat exchange of the heat exchanger flowing in the heat dissipation channel 10 and radiative heat dissipation of the cold plate body 1211. Specifically, the heat dissipation channel 10 in the housing cavity 1121 transfers cold energy to the second daughter board 1216 to radiate heat dissipation of the main control module 2. Moreover, the radiative heat dissipation method of the cold plate body 1211 can, to a certain extent, prevent condensation from forming on the surface of the main control module 2.

[0187] Please continue to combine Figure 25 , Figure 25 This is a schematic diagram of the sixth partial structure of the electrical control box provided in this embodiment. It is understood that the filter board 32 needs to be electrically connected not only to the module board 31 but also to an external power supply line. Therefore, the electrical control box provided in this embodiment also includes a power connector 60. The power connector 60 is disposed on the first sub-board 1214 of the cold plate body 1211. A portion of the power connector 60 is located in the accommodating cavity 1122 and electrically connected to the filter substrate 321 of the filter board 32. The other portion of the power connector 60 is located outside the accommodating cavity 1122 and is used for electrical connection to an external power supply line. In this way, the electrical connection between the filter board 32 and the external power supply line can be achieved.

[0188] In this embodiment, in order to facilitate the connection of the external power cord, the power connector 60 is disposed below the receiving cavity 1121, and the part of the power connector 60 located outside the receiving cavity 1122 faces the front of the control box.

[0189] Of course, the lower temperature in the area where the heat dissipation channel 10 is located will also be transferred to the power connector 60. Please refer to [link / reference]. Figure 7 , Figures 12 to 14 As shown, a second blocking groove 70 is provided between the heat dissipation channel 10 near the power terminal 60 and the power terminal 60. In this way, the second blocking groove 70 can prevent the lower temperature in the area where the heat dissipation channel 10 is located from being transferred to the power terminal 60 to a certain extent, thereby preventing short circuits in the power terminal 60 to a certain extent.

[0190] In some embodiments, the second blocking groove 70 is disposed on the first sub-board 1214 and extends through the first sub-board 1214. Moreover, the shape of the second blocking groove 70 can also be a strip groove, and the extending direction of the second blocking groove 70 is consistent with the width direction of the main box assembly 12. Furthermore, multiple second blocking grooves 70 can be provided, and the multiple second blocking grooves 70 are arranged at intervals along the width direction of the main box assembly 12.

[0191] Please continue to combine Figure 26 , Figure 26 This is another structural schematic diagram of the first housing in the electrical control box provided in this application embodiment. It is understood that the main control module 2, located above the module board 31, may also receive low temperatures from the area where the heat dissipation channel 10 is located. Therefore, in this embodiment, a third blocking groove 80 is provided between the module board 31 and the main control module 2; that is, a third blocking groove 80 is provided between the heat dissipation channel 10 and the main control module 2. Thus, by setting the third blocking groove 80, the lower temperature in the area where the heat dissipation channel 10 is located can be prevented from being transferred to the main control module 2 to a certain extent, thereby preventing short circuits in the main control module 2 to a certain extent.

[0192] Of course, the third blocking groove 80 can also be formed on the first sub-plate 1214, that is, the third blocking groove 80 is formed through the first sub-plate 1214. The shape and number of the third blocking groove 80 can refer to the second blocking groove 70. Here, there is no limitation on the shape and number of the third blocking groove 80. It should be noted that in other embodiments, the number and shape of the first blocking groove 50, the second blocking groove 70 and the third blocking groove 80 can be other ways, and there is no specific limitation here.

[0193] Please see Figure 2 , Figure 3 , Figures 10 to 11 As shown, it can be understood that in order to maintain the performance of the power terminal block 60, the power terminal block 60 should be protected to a certain extent. That is to say, the power terminal block 60 will not be exposed to the outside. Therefore, the electrical control box provided in this embodiment also includes a terminal block protective shell 90. The terminal block protective shell 90 is connected to the first sub-board 1214. The terminal block protective shell 90 forms a protective cavity 901 that is independent of the accommodating cavity 1122.

[0194] Please continue to combine Figure 27 , Figure 27 This is a three-dimensional structural diagram of the first housing portion in the electrical control box provided in an embodiment of this application. The terminal block protective housing 90 includes a first housing portion 902 and a second housing portion 903; the first housing portion 902 is connected to the first sub-board 1214, and the second housing portion 903 is connected to the first housing portion 902, forming a protective cavity 901 together with the first housing portion 902; the first housing portion 902 has a clearance opening 9021 for the insulating base 601 to pass through.

[0195] A first fixing hole 9027 is provided on the periphery of the clearance opening 9021. Correspondingly, a second fixing hole 1320 corresponding to the first fixing hole 9027 is provided on the first sub-plate 1214. The first shell part 902 and the first sub-plate 1214 can be connected together by threaded fasteners that are sequentially inserted into the first fixing hole 9027 and the second fixing hole 1320.

[0196] Understandably, the first housing portion 902 with the clearance opening 9021 has relatively low structural strength. Therefore, in order to improve the structural strength of the first housing portion 902 and ensure that the power connector 60 has good performance, in some optional embodiments, the connector protective housing 90 further includes a reinforcing strip structure 904 disposed on the first housing portion 902. The reinforcing strip structure 904 is disposed around the clearance opening 9021 and is located within the protective cavity 901; wherein, the shape of the reinforcing strip structure 904 is adapted to the shape of the clearance opening 9021. In this way, the structural strength of the connector protective housing 90 can be improved by the setting of the reinforcing strip structure 904, which satisfies the normal connection between the filter board 32 and the external power line.

[0197] To prevent the reinforcing strip structure 904 from detaching from the first shell portion 902, in some embodiments, the reinforcing strip structure 904 and the first shell portion 902 are integrally formed. This further enhances the structural strength of the first shell portion 902.

[0198] Of course, the external power cord needs to pass through the protective cavity 901. Therefore, in some specific embodiments, a power cord outlet 9031 communicating with the protective cavity 901 is formed on the second housing 903; the external power cord passes through the protective cavity 901 via the power cord outlet 9031. In this way, the user can connect the external power cord.

[0199] Furthermore, please continue to combine Figure 28 and Figure 29 , Figure 28 This is a schematic diagram of the seventh partial structure of the electrical control box provided in an embodiment of this application. Figure 29 for Figure 28 A schematic diagram of the structure from another perspective. Further, the power connector 60 includes an insulating base 601 and a contact portion 602 connected to the insulating base 601. The insulating base 601 is connected to the first sub-board 1214. The first end of the contact portion 602 extends into the receiving cavity 1122 and is electrically connected to the filter substrate 321. The second end of the contact portion 602 is used for electrical connection to an external power line extending into the protective cavity 901. In this way, an electrical connection between the external power line and the filter board 32 can be achieved to filter out high-frequency interference and noise in the power supply, ensuring the normal operation of the internal circuitry.

[0200] By providing a power terminal block 60, the connection between the external power cord and the power terminal block 60, as well as the connection between the filter board 32 and the power terminal block 60, can be performed in different chambers. This improves convenience by allowing wiring and connection operations to be performed in two independent chambers, thereby enhancing the ease of assembling the control box. Furthermore, during installation and maintenance, interference with other wiring harnesses connected to the filter board 32 can be avoided to some extent, reducing installation and maintenance complexity, and improving the stability of the filter board 32.

[0201] Furthermore, the first end of the power receiving part 602 extends into the receiving cavity 1122, and the second end of the power receiving part 602 extends into the protective cavity 901. In this way, a flat design can be avoided, which not only improves the layout flexibility inside the electrical control box, but also improves the structural compactness of the electrical control box.

[0202] In addition, the independent accommodating cavity 1122 and the protective cavity 901 block the direct coupling path between high-voltage and low-voltage signals, reduce the risk of electromagnetic interference, and thus improve the performance stability of the filter board 32.

[0203] Furthermore, wiring the external power supply can be completed without disassembling the main box assembly 12. This not only avoids interference with the frequency converter drive module 3 and main control module 2 installed inside the main box assembly 12, but also does not affect the internal sealing of the main box assembly 12. Thus, while ensuring good electrical control performance, the electrical control box also has good sealing performance.

[0204] In order to enable the two opposite ends of the power receiving part 602 to be located inside and outside the receiving cavity 1122, in some specific embodiments, the first sub-plate 1214 is provided with a mounting port 1270 communicating with the receiving cavity 1122, and the insulating base 601 is installed at the mounting port 1270 and partially exposed on the side of the first sub-plate 1214 facing away from the receiving cavity 1122.

[0205] Please continue to combine Figures 30 to 31 , Figure 30 This is a three-dimensional structural diagram of the power terminal block in the electrical control box provided in an embodiment of this application. Figure 31 for Figure 30A three-dimensional structural schematic diagram from another perspective. As shown in the figure, in a specific embodiment of this invention, the insulating base 601 includes an insulating body 6011 and a connecting flange 6012 protruding from the outer wall of the insulating body 6011. The insulating body 6011 partially extends into the accommodating cavity 1122, and the electrical contact part 602 passes through the insulating body 6011. The first housing is provided with a limiting groove 1280 surrounding the mounting opening 1270 on one side of the accommodating cavity 1122. The connecting flange 6012 is embedded in the limiting groove 1280 and connected to the first sub-plate 1214.

[0206] Specifically, the first sub-plate 1214 has a first plate surface 1290 and a second plate surface 1300 disposed opposite to each other; the first plate surface 1290 forms the bottom wall of the accommodating cavity 1122, and the limiting groove 1280 is formed on the bottom wall of the accommodating cavity 1122; the connecting flange 6012 abuts against the bottom wall of the limiting groove 1280 and is connected to the first sub-plate 1214.

[0207] Please combine Figure 32 , Figure 32 for Figure 14 A magnified view of the partial structure at point D. To achieve the connection between the power connector 60 and the first sub-board 1214, in this specific embodiment, the connecting flange 6012 has a first positioning hole 6013 and a first connecting hole 6014 on both opposite sides; the bottom wall of the limiting groove 1280 has a positioning post 1310 that mates with the first positioning hole 6013; the bottom wall of the limiting groove 1280 has a second connecting hole 1281 opposite to the first connecting hole 6014; the connecting flange 6012 and the first sub-board 1214 are connected together by first fasteners that sequentially pass through the first connecting hole 6014 and the second connecting hole 1281. This ensures that the tightening direction of the first fasteners points from the first plate surface 1290 to the second plate surface 1300, consistent with the wiring direction of the filter board 32, facilitating assembly.

[0208] It is understandable that if the second connecting hole 1281 is a through hole, then the accommodating cavity 1122 will communicate with the space outside the accommodating cavity 1122 through the first connecting hole 6014 and the second connecting hole 1281 in sequence. This would damage the sealing of the accommodating cavity 1122 and thus affect the performance of the filter board 32. Therefore, in the specific implementation of this embodiment, the second connecting hole 1281 is a blind hole.

[0209] In some embodiments, the contact part 602 can be a conductive post with a first fastening hole 6021 and the filter plate 32 has a second fastening hole. The filter plate 32 and the conductive post are connected by second fasteners 110 that pass through the second fastening hole and the first fastening hole 6021 in sequence. This ensures that the connection direction between the filter plate 32 and the conductive post is consistent with the connection direction between the connecting flange 6012 and the first sub-plate 1214. During the assembly of the electrical control box, the installation of the back side of the first sub-plate 1214 can be performed simultaneously, improving the assembly efficiency of the electrical control box.

[0210] In some embodiments, to prevent incorrect installation of the power connector 60, the electrical control box provided in this embodiment also includes a foolproof structure 120, which is disposed between the insulating base 601 and the first daughter board 1214. Thus, by providing the foolproof structure 120, incorrect installation of the power connector 60 can be avoided to a certain extent, improving the assembly efficiency of the electrical control box provided in this embodiment.

[0211] In some specific embodiments, the foolproof structure 120 includes a foolproof protrusion 1201 disposed on the first sub-plate 1214; a foolproof notch 6015 is provided on the connecting flange 6012 to cooperate with the foolproof protrusion 1201. Thus, by cooperating with the foolproof protrusion 1201 and the foolproof notch 6015, the incorrect installation of the power terminal block 60 can be avoided, improving the assembly efficiency of the electrical control box provided in this embodiment.

[0212] Furthermore, there are two foolproof structures 120, and the two foolproof structures 120 are respectively disposed on both sides of the connecting flange 6012 along the length direction of the insulating base 601. It should be noted that the length direction of the insulating base 601 is consistent with the width direction of the main box assembly 12.

[0213] It is understandable that if a sealed connection cannot be made between the insulating base 601 and the first daughter plate 1214, the sealing performance of the accommodating cavity 1122 will be affected. Therefore, in the specific implementation of this embodiment, the power terminal block 60 further includes a terminal block seal 130, which is disposed on the connecting flange 6012 and presses against the first plate surface 1290. In this way, a sealed connection can be achieved between the power terminal block 60 and the first daughter plate 1214, ensuring the sealing performance of the accommodating cavity 1122, thereby enabling the filter plate 32 to have better performance.

[0214] If the terminal block seal 130 is located inside the first positioning hole 6013 and the first connecting hole 6014, dust and other contaminants present at the junction of the connecting flange 6012 and the first plate surface 1290 may enter the receiving cavity 1122 through the first positioning hole 6013 and the first connecting hole 6014. Therefore, to avoid this phenomenon to a certain extent, in the specific embodiment of this example, both the first positioning hole 6013 and the first connecting hole 6014 are located on the side of the terminal block seal 130 away from the insulating body 6011. In this way, the sealing performance within the receiving cavity 1122 can be guaranteed.

[0215] Please continue to combine Figure 33 and Figure 34 , Figure 33 This is a cross-sectional view of the power connector provided in an embodiment of this application. Figure 34 for Figure 33 A magnified view of the partial structure at point E. As shown in the figure, in some specific embodiments, the terminal block seal 130 is a terminal block sealing ring; the terminal block sealing ring includes a main sealing part 1301 and a sealing lip 1302 connected together, the main sealing part 1301 is connected to the connecting flange 6012; the sealing lip 1302 protrudes from the connecting flange 6012 and presses against the first plate surface 1290. In this way, through the pressing contact between the sealing lip 1302 and the first plate surface 1290, a sealed connection between the connecting flange 6012 and the first plate surface 1290 can be achieved.

[0216] In some embodiments, to improve the sealing performance of the terminal block seal 130, multiple sealing lips 1302 can be provided at radial intervals along the terminal block sealing ring. In a specific embodiment of this invention, two sealing lips 1302 are provided at radial intervals along the terminal block sealing ring. This improves the sealing performance of the terminal block seal 130 while minimizing the overall manufacturing difficulty and cost of the terminal block seal 130 by providing two sealing lips 1302, thus facilitating its processing and manufacturing.

[0217] To increase the deformation of the terminal block seal 130 and achieve a tighter seal when the sealing lip 1302 abuts against the first plate surface 1290, in some optional embodiments, a cavity 1303 is provided within the main sealing portion 1301, extending circumferentially along the main sealing portion 1301. Thus, the cavity 1303 allows for greater deformation of the terminal block seal 130 during installation, facilitating installation. Furthermore, when the sealing lip 1302 of the terminal block seal 130 abuts against the first plate surface 1290, its outward expansion deformation is also greater, achieving effective pressure contact between the sealing lip 1302 and the first plate surface 1290.

[0218] In some embodiments, an annular groove 6016 for embedding the main sealing part 1301 may be formed on the connecting flange 6012, and the sealing lip 1302 protrudes from the annular groove 6016. In this way, the terminal block seal 130 can be installed on the connecting flange 6012.

[0219] In other embodiments, to facilitate the manufacturing of the power connector 60, the connector sealing ring and the connecting flange 6012 can also be an integral structure. This can improve the processing efficiency of the power connector 60 and reduce the processing cost of the power connector 60.

[0220] It is understood that since the filter board 32 and the wiring harness connected to the external power supply line to the power receiving part 602 may be multiple, in the specific implementation of this embodiment, the power receiving part 602 includes multiple conductive posts 6022. The first end of the multiple conductive posts 6022 is electrically connected to the filter board 32, and the second end of the multiple conductive posts 6022 is used to be electrically connected to the external power supply line.

[0221] Of course, adjacent wire harnesses need to be isolated to avoid safety accidents. Therefore, in this embodiment, the insulating base 601 is connected to multiple partitions 603, and the second ends of two adjacent conductive posts 6022 are separated by a partition 603. In this way, the two conductive posts 6022 can be separated, thus improving the safety of the power terminal block 60.

[0222] Since the side containing the filter board 32 does not require user wiring, while the side connected to the external power supply does, in this embodiment, the first end of the power connector 602 faces the back of the terminal block protective housing 90, and the second end of the power connector 602 faces the front of the terminal block protective housing 90. That is, the end of the power connector 602 connected to the filter board 32 is positioned further back than the end connected to the external power supply. This facilitates both internal wiring of the control box and external power supply connection for the user.

[0223] Furthermore, in this embodiment, the second end of the power receiving part 602 is positioned facing the access port 1001, so that when wiring an external power cord, the wiring can be performed through the access port 1001. Therefore, it is not necessary to provide an additional opening on the housing 100 for wiring an external power cord.

[0224] Furthermore, in this embodiment, the power connector 60 is positioned near the bottom of the housing 100, meaning it is located at the bottom of the control box. This lowers the height of the power connector 60, facilitating the connection of external power cords by the user.

[0225] Of course, the external power cord also needs to extend from the protective cavity 901. To facilitate the extension of the external power cord from the protective cavity 901 and improve the neatness of the external power cord's appearance, the electrical control box provided in this embodiment also includes a cable exit structure 140. The cable exit structure 140 is disposed inside the protective cavity 901 and is positioned opposite to the power cord outlet 9031. The cable exit structure 140 has a cable exit cavity 1401 that communicates with the power cord outlet 9031. The external power cord passes through the cable exit cavity 1401 and the power cord outlet 9031 sequentially to exit the protective cavity 901. This facilitates the exit of the external power cord and improves the neatness of the external power cord's exit.

[0226] Please continue to combine Figure 35 , Figure 35 This is a schematic diagram of the wiring structure in the electrical control box provided in an embodiment of this application. As shown in the figure, in some embodiments, the wiring structure 140 includes a first wiring seat 1402 and a second wiring seat 1403 connected to each other. The first wiring seat 1402 is connected to the first housing portion 902. The wiring cavity 1401 has a first cavity wall 1404 and a second cavity wall 1405 disposed opposite to each other. The first cavity wall 1404 is formed on the first wiring seat 1402, and the second cavity wall 1405 is formed on the second wiring seat 1403. A plurality of spaced wiring recesses 1406 are formed on the first cavity wall 1404. Thus, by providing multiple wiring recesses 1406, each wiring recess 1406 can correspond to one or a bundle of external power lines, thereby improving the neatness of the external power line wiring and facilitating the user to lead the external power lines out of the protective cavity 901.

[0227] It is understandable that a large number of wires may be led out from the middle of the cable outlet structure 140. Therefore, in some optional embodiments, in the arrangement direction of the plurality of cable outlet recesses 1406, the middle of the first cavity wall 1404 is recessed relative to the two sides of the first cavity wall 1404; the middle of the second cavity wall 1405 has a recess 1407 that is recessed away from the first cavity wall 1404. In this way, the combination of the shapes of the first cavity wall 1404 and the second cavity wall 1405 makes the space in the middle of the cable outlet cavity 1401 larger, thus facilitating the lead-out of more external power cables from the middle of the cable outlet cavity 1401.

[0228] Please continue to combine Figure 36 and Figure 37 , Figure 36 This is an exploded view of the wiring structure in the electrical control box provided in the embodiment of this application. Figure 37 for Figure 36 A structural schematic diagram from another perspective. It is understood that if the friction between the external power cable and the first cavity wall 1404 and the second cavity wall 1405 is small, the external power cable will detach from the outlet cavity 1401. Therefore, in some specific embodiments, to avoid this phenomenon to a certain extent, the friction between the external power cable and the first cavity wall 1404 and the second cavity wall 1405 can be increased. Thus, in some optional embodiments, multiple spaced-apart first grooves 1408 are formed on both the first cavity wall 1404 and the second cavity wall 1405; the extending direction of the first grooves 1408 is consistent with the arrangement direction of the multiple outlet recesses 1406, and the arrangement direction of the multiple first grooves 1408 is perpendicular to the arrangement direction of the multiple outlet recesses 1406. Thus, by providing the first groove 1408 on both the first cavity wall 1404 and the second cavity wall 1405, the friction between the external power cord and the first cavity wall 1404 and the second cavity wall 1405 can be increased, thereby preventing the external power cord from coming out of the outlet cavity 1401 to a certain extent.

[0229] When installing the cable outlet structure 140, the first cable outlet 1402 needs to be installed on the first housing 902 first, and then the second cable outlet 1403 needs to be installed.

[0230] The connection between the first cable outlet 1402 and the first housing 902 can be achieved in two ways. The first method involves a latching part 1409 and a insert 1410 on the first cable outlet 1402, and a third connecting hole 9022 and a fourth connecting hole 9023 on the first housing 902. The latching part 1409 engages with the third connecting hole 9022, and the insert 1410 engages with the fourth connecting hole 9023, thus detachably connecting the first cable outlet 1402 and the first housing 902.

[0231] The second method involves the first cable outlet 1402 having multiple latching parts (not shown in the figure), and the first housing 902 having multiple snap-fit ​​holes (not shown in the figure), with each snap-fit ​​hole corresponding to one of the latching parts. Each latching part engages with its corresponding snap-fit ​​hole to detachably connect the first cable outlet 1402 and the first housing 902. Both methods enable quick assembly and disassembly and reliable connection between the first cable outlet 1402 and the first housing 902, thereby improving the assembly efficiency of the electrical control box provided in this embodiment.

[0232] In order to mount the cable outlet structure 140 onto the first housing portion 902 as a whole, in some specific embodiments, the electrical control box provided in this embodiment also includes a third fastener 220. The third fastener 220 passes through the second cable outlet socket 1403, the first cable outlet socket 1402, and the first housing portion 902 in sequence, connecting the cable outlet structure 140 to the first housing portion 902. In this way, a detachable connection between the cable outlet structure and the first housing portion 902 can be achieved, which improves the assembly efficiency of the electrical control box and facilitates the replacement of the cable outlet structure 140.

[0233] It is understandable that if the relative positions of the first cable outlet 1402 and the second cable outlet 1403 can be defined before connecting the cable outlet structure 140 to the first housing 902 using the third fastener 220, the assembly efficiency of the electrical control box provided in this embodiment can be further improved. Based on this, in some specific embodiments, one of the first cable outlet 1402 and the second cable outlet 1403 is provided with a positioning piece 1420, and the other is provided with a second positioning hole 1430 for the positioning piece 1420 to be inserted. Thus, by the insertion and engagement of the positioning piece 1420 and the second positioning hole 1430, the first cable outlet 1402 and the second cable outlet 1403 can be positioned, further improving the efficiency of mounting the cable outlet structure 140 on the first housing 902.

[0234] In a specific embodiment of this example, the positioning piece 1420 is disposed on the first cable outlet 1402, and the second positioning hole 1430 is disposed on the second cable outlet 1403.

[0235] To facilitate gripping of the second cable outlet 1403 and further improve the efficiency of mounting the cable outlet structure 140 onto the first housing 902, in some optional embodiments, the second cable outlet 1403 has an operating side 1440 disposed opposite to the first cable outlet 1402; in the arrangement direction of the plurality of cable outlet recesses 1406, the center of the operating side 1440 is raised relative to the sides. This facilitates gripping of the second cable outlet 1403, further improving the installation efficiency of mounting the cable outlet structure 140 onto the first housing 902.

[0236] Of course, if the friction generated on the surface of the second cable outlet 1403 can be increased during installation, it will be easier to grip the second cable outlet 1403. Based on this, in some specific embodiments, a plurality of spaced-apart second grooves 1441 are provided on the operating side 1440; the extending direction of the second grooves 1441 is consistent with the arrangement direction of the plurality of cable outlet recesses 1406, and the arrangement direction of the plurality of second grooves 1441 is perpendicular to the arrangement direction of the plurality of cable outlet recesses 1406. Thus, by providing second grooves 1441 on the surface of the operating side 1440, the friction generated on the operating side 1440 can be increased, making it easier to grip the second cable outlet 1403.

[0237] After the user connects the external power cord to the power terminal 60 and leads it out from the cable outlet structure 140, the second housing 903 needs to be connected to the first housing 902. Therefore, the connection method between the first housing 902 and the second housing 903 should be as simple as possible. Thus, in this specific embodiment, the first housing 902 and the second housing 903 are detachably connected by a third fastener 220. This makes the connection between the first housing 902 and the second housing 903 more convenient and easier for the user to operate.

[0238] like Figure 3 , Figure 10 , Figure 11 , Figure 25 and Figure 29 As shown, it should be noted that the back side of the second housing 903 can also mount other functional structural components located on the outdoor unit. Therefore, in this embodiment, the first housing 902 includes a housing body 9024 and a functional mounting part 9025. The housing body 9024 is connected to the first housing 902; the functional mounting part 9025 is connected to the side of the housing body 9024 facing away from the first housing 902, and at least one functional mounting hole 9026 is provided on the functional mounting part 9025. In this way, other functional components can be mounted on the back side of the terminal block protective housing 90 through connection with the functional mounting hole 9026, improving the structural compactness of the outdoor unit.

[0239] Of course, the electrical control box provided in this embodiment also needs to be grounded. Therefore, the electrical control box provided in this embodiment also includes at least one grounding base 150 connected to the first daughter board 1214. The grounding base 150 is located on the side of the power terminal block 60.

[0240] As described above, in the electrical control box, module board 31 also needs to be electrically connected to the main control power board 21 located in the mounting cavity 111. This means that wires need to pass through the receiving cavity 1121 and enter the mounting cavity 111, which will affect the overall sealing performance of the electrical control box. Please refer to... Figure 23 , Figure 38 , Figure 39 and Figure 40 ,in, Figure 38 This is a schematic diagram of the eighth partial structure of the electrical control box provided in the embodiments of this application. Figure 39 This is a schematic diagram illustrating the mating structure between the wiring seal and the internal wire in the electrical control box provided in this embodiment of the application. Figure 40 A three-dimensional structural diagram of the wiring seal in the electrical control box provided in the embodiments of this application.

[0241] To avoid this phenomenon to some extent, the electrical control box provided in this embodiment also includes a wiring seal 160 and an internal wire 170. The main box assembly 12 also has a first wire hole 125, a connecting groove 126 and a second wire hole 127. The receiving cavity 1121, the first wire hole 125, the connecting groove 126, the second wire hole 127 and the mounting cavity 111 are connected in sequence. A portion of the wiring seal 160 is disposed in the connecting groove 126, and the wiring seal 160 is provided with a wire passage 1601 that connects the first wire hole 125 and the second wire hole 127. The internal wire 170 passes through the first wire hole 125, the wire passage 1601 and the second wire hole 127 in sequence to electrically connect the module board 31 and the main control power board 21.

[0242] Due to the limitations of the material and molding method of the wiring seal 160, the wiring channel 1601 can dynamically fit the internal wire 170. In addition, the isolation design of the receiving cavity 1121 and the mounting cavity 111 can improve the sealing performance between the module board 31 and the main control module 2, thereby effectively resisting the penetration of condensate and terminal corrosion in humid and hot environments.

[0243] Meanwhile, the compartmentalized modular board 31 and main control module 2 can block the electromagnetic coupling path between the high-voltage and low-voltage modules. Combined with the centralized wiring design, this improves the control accuracy of each module within the control box. Furthermore, the installation of the wiring seal 160 not only enhances sealing performance but also provides some vibration resistance and interference reduction, thus extending the service life of the control box.

[0244] It should be noted that the aforementioned internal wiring 170 includes power lines and signal lines.

[0245] The material for the wiring seal 160 can be made of rubber or silicone, balancing sealing performance and ease of installation.

[0246] In some alternative embodiments, the wiring seal 160 can also be molded by potting adhesive within the connection groove 126. Of course, in some other embodiments, the wiring seal 160 can also be molded in other ways, and no specific limitations are made here.

[0247] The first wire-passing hole 125, the groove of the connecting groove 126, and the second wire-passing hole 127 are all positioned facing the back of the main box assembly 12. That is, the first wire-passing hole 125, the groove of the connecting groove 126, and the second wire-passing hole 127 are all facing away from the inspection port 1001. Therefore, even if the sealing performance of the wiring seal 160 is not ideal, during later maintenance or replacement of the module board 31, external dust and other contaminants are unlikely to enter the receiving cavity 1121, the accommodating cavity 1122, and the mounting cavity 111 through the first wire-passing hole 125, the connecting groove 126, and the second wire-passing hole 127. This further ensures the airtightness of the electrical control box provided in this embodiment.

[0248] If the first wire-passing hole 125 and the second wire-passing hole 127 cannot be connected via the connecting groove 126 on the main box assembly 12, then the internal wire 170 needs to utilize space outside the main box assembly 12 for routing. This will affect the extension direction of the internal wire 170, making it prone to bending and short circuits. Furthermore, it will increase the overall space occupied by the electrical control box. Therefore, in this specific embodiment, the first wire-passing hole 125, the connecting groove 126, and the second wire-passing hole 127 are sequentially connected to form a clearance space 128 for avoiding the internal wire 170. This prevents short circuits of the internal wire 170 to a certain extent while maintaining the compact layout of the electrical control box provided in this embodiment.

[0249] Specifically, the first wire passage 125 includes a first bottom plate hole section 1251 and a first surrounding plate hole section 1252 that are connected, and the second wire passage 127 includes a second bottom plate hole section 1271 and a second surrounding plate hole section 1272 that are connected; the first bottom plate hole section 1251 is formed on the first sub-plate 1214, and the first surrounding plate hole section 1252 is formed on the surrounding plate portion 1217 of the first surrounding plate 1212; the second bottom plate hole section 1271 is formed on the second sub-plate 1216, and the second surrounding plate hole section 1272 is formed on the surrounding plate body 1230 of the side surrounding plate 1213.

[0250] A connecting portion 1330 is connected to the connecting subplate 1215, forming a connecting groove 126. Alternatively, the connecting portion 1330 and the cold plate body 1211 can be an integral structure. This ensures the structural strength of the first box 121 while also facilitating its manufacturing.

[0251] In a specific embodiment of this invention, the first housing 121 is further provided with an installation groove 129 that communicates with the connection groove 126. The wiring seal 160 includes a connector 1602 and a sealing part 1603 connected together. The connector 1602 is accommodated in the installation groove 129 and connected to the installation groove 129. The sealing part 1603 is accommodated in the connection groove 126. The wire passage 1601 is formed on the sealing part 1603.

[0252] To facilitate the assembly of the wiring seal 160 onto the first housing 121, in some embodiments, the connector 1602 is detachably connected to the mounting groove 129. This facilitates both the assembly of the wiring seal 160 and its replacement after wear.

[0253] Specifically, the corner of the connector 1602 is provided with a first mounting hole 1604, and the bottom wall of the mounting groove 129 is provided with a connecting post 1291 that mates with the first mounting hole 1604. A fixing member (not shown in the figure) is sequentially inserted through the first mounting hole 1604 and the connecting post 1291 to connect the connector 1602 to the main box assembly 12. In this way, a detachable connection between the wiring seal 160 and the first box body 121 can be achieved.

[0254] Please continue to combine Figure 41 , Figure 41 This is a schematic diagram of the planar structure of the wiring seal in the electrical control box provided in this application embodiment. It can be understood that the wiring channel 1601 should be concentrated in the middle of the sealing part 1603 along the length direction of the wiring seal 160 (the width direction of the main box assembly 12), so as to ensure the structural strength of the wiring seal 160.

[0255] Therefore, in some embodiments, in a direction perpendicular to the cable passage 1601, the blocking portion 1603 has a first sub-blocking portion 1605 located in the middle and second sub-blocking portions 1606 located on both sides; in the direction from the first sub-blocking portion 1605 to the second sub-blocking portion 1606, the dimension of the blocking portion 1603 gradually decreases in the depth direction of the connecting groove 126. The direction perpendicular to the cable passage 1601 is consistent with the length direction of the main box assembly 12, as can be seen in [reference needed]. Figure 41 The A1-A1 direction; the depth direction of the connecting groove 126 is consistent with the thickness direction of the main box assembly 12, see [reference]. Figure 41 The A2-A2 direction is specified. Therefore, in the depth direction of the connecting groove 126, the dimension of the area where the wire passage 1601 is provided is larger than the dimension of the area where the wire passage 1601 is not provided. This ensures the structural strength of the wiring seal 160, and consequently, the sealing performance of the wiring seal 160.

[0256] Furthermore, when installing the wiring seal 160, its installation direction is from the mounting groove 129 to the connecting groove 126. Therefore, in order to satisfy the ease of installation of the wiring seal 160 while enabling the wiring seal 160 to have good sealing performance, the shape of the sealing part 1603 can be further defined.

[0257] Specifically, the extension direction of the wire passage 1601 is defined as the first direction, and the direction perpendicular to the wire passage 1601 is defined as the second direction (the aforementioned A1-A1 direction); the sealing part 1603 has a peripheral sidewall 1607 and a sealing wall 1608 connected to each other, the peripheral sidewall 1607 is connected to the connecting seat 1602, and the sealing wall 1608 is located on the side of the peripheral sidewall 1607 away from the connecting seat 1602; the peripheral sidewall 1607 includes two first sealing walls 1609 and two second sealing walls 1608. Two sealing walls 1610, two first sealing walls 1609 are arranged opposite each other along a first direction, and two second sealing walls 1610 are arranged opposite each other along a second direction. The two second sealing walls 1610 are connected between the two first sealing walls 1609 to form a peripheral wall 1607; wherein, the included angle between the second sealing wall 1610 and the sealing wall 1608 connected thereto is an obtuse angle; and / or, the included angle between the second sealing wall 1610 and the first sealing wall 1609 connected thereto is an obtuse angle.

[0258] The sealing wall 1608 includes two sealing sub-walls 1620 connected together. The two sealing sub-walls 1620 are arranged along the second direction, and the included angle between the two sealing sub-walls 1620 is an obtuse angle, so as to form a first sub-seal portion 1605 at the connection of the two sealing sub-walls 1620.

[0259] Furthermore, the first sealing wall 1609 may also include two connected sub-sealing walls 1630, the two sub-sealing walls 1630 being arranged along the second direction, and the included angle between the two sub-sealing walls 1630 being an obtuse angle, so that in the first direction, both ends of the first sub-sealing portion 1605 are recessed inward.

[0260] Of course, the smaller the gap between the groove wall of the connecting groove 126 and the sealing part 1603, the better the sealing performance of the wiring seal 160. Based on this, in the specific implementation of this embodiment, the shape of the connecting groove 126 is adapted to the shape of the sealing part 1603. In this way, the groove wall of the connecting groove 126 and the surface of the sealing part 1603 can be effectively fitted, thereby improving the sealing performance of the wiring seal 160, and further improving the sealing performance of the receiving cavity 1121, the receiving cavity 1122 and the mounting cavity 111, ensuring the performance of the module board 31, the filter board 32 and the main control module 2.

[0261] It is understandable that there may be multiple internal wires 170 connecting the module board 31 and the main control power board 21, and the diameters of each internal wire 170 may be unequal. Therefore, in some embodiments, the sealing part 1603 is provided with multiple wire passages 1601; the diameter of some of the multiple wire passages 1601 is larger than the diameter of others. In this way, the wiring seal 160 provided in this embodiment can accommodate the passage of multiple internal wires 170, and can allow internal wires 170 of different diameters to pass through. Thus, the performance of the wiring seal 160 can be improved.

[0262] In some embodiments, to avoid affecting the sealing performance of the wiring seal 160 due to the opening of the wiring channel 1601, the inner wire 170 and the sealing part 1603 can be an integral structure. Specifically, the inner wire 170 can be pre-embedded and integrally formed with the sealing part 1603 during the manufacturing process. Of course, in other embodiments, the inner wire 170 can also be directly inserted into the sealing part 1603; therefore, the connection method between the inner wire 170 and the sealing part 1603 is not specifically limited.

[0263] As described above, since the connector 1602 needs to be connected to the mounting groove 129, it requires strong structural strength. Therefore, in some optional embodiments, the size of the connector 1602 is larger than the size of the sealing portion 1603 in the extending direction of the wire passage 1601 and in the direction perpendicular to the wire passage 1601. It should be noted that the "direction perpendicular to the wire passage 1601" here refers to... Figure 41 The direction is A1-A1. In the following description, unless otherwise specified, "the direction perpendicular to the crossing channel 1601" can be referred to as... Figure 41 The A1-A1 direction in the middle.

[0264] To facilitate the processing and forming of the wiring seal 160, in this specific embodiment, the connector 1602 and the sealing part 1603 are an integral structure. This improves both the processing efficiency of the wiring seal 160 and the structural strength of the wiring seal 160.

[0265] Please combine Figure 14 , Figure 29 and Figure 38It is understood that the main sealing targets of the wiring seal 160 are the first wire passage hole 125 and the second wire passage hole 127. Therefore, in order to achieve effective sealing of the first wire passage hole 125 and the second wire passage hole 127, in some optional embodiments, the sealing portion 1603 extends beyond the edges of the first wire passage hole 125 and the second wire passage hole 127 on both sides in a direction perpendicular to the wire passage channel 1601. In this way, the sealing portion 1603 can cover the opening of the first wire passage hole 125 and the opening of the second wire passage hole 127, thereby achieving effective sealing of the first wire passage hole 125 and the second wire passage hole 127.

[0266] Of course, since the shape of the connecting groove 126 is adapted to the shape of the sealing part 1603, in some embodiments, the connecting groove 126 has two oppositely arranged groove sidewalls 1261 in a direction perpendicular to the wire passage 1601; wherein the first wire passage hole 125 and the second wire passage hole 127 are both located between the two groove sidewalls 1261. That is, in a direction perpendicular to the wire passage 1601, the distance between the two groove sidewalls 1261 is greater than the dimension of the first wire passage hole 125 in that direction and the dimension of the second wire passage hole 127 in that direction. Only in this way can the assembly relationship between the wiring seal 160 and the connecting groove 126 be satisfied.

[0267] Of course, to further improve the sealing performance of the wiring seal 160, a corresponding sealing structure can be provided on the wiring seal 160 to effectively fit with the groove sidewall 1261 of the connecting groove 126 and the groove bottom wall of the mounting groove 129. Specifically, in some embodiments, the wiring seal 160 further includes a first sealing unit 1640 and a second sealing unit 1650. The first sealing unit 1640 is disposed on the connecting seat 1602, and the second sealing unit 1650 is disposed on the sealing part 1603. Moreover, the first sealing unit 1640 abuts against the groove wall of the mounting groove 129, and the second sealing unit 1650 abuts against the groove inner wall of the connecting groove 126. In this way, both the connecting groove 126 and the mounting groove 129 can be isolated from the outside world to a certain extent, so as to prevent dust and other external objects from entering the receiving cavity 1121 through the mounting groove 129, the connecting groove 126 and the first wire hole 125 in sequence, or to prevent dust and other external objects from entering the receiving cavity 1122 through the mounting groove 129, the connecting groove 126 and the second wire hole 127 in sequence.

[0268] Specifically, the first sealing unit 1640 includes at least one first sealing rib 1641 extending circumferentially along the connecting seat 1602, and the first sealing rib 1641 abuts against the bottom wall of the mounting groove 129. In this way, the mounting groove 129 can be isolated from the outside world to a certain extent.

[0269] If the first sealing rib 1641 extends only circumferentially along the connecting seat 1602, but its extension length is too short to surround the sealing part 1603, dust and other contaminants may enter the connecting groove 126. To avoid this phenomenon to a certain extent, the first sealing unit 1640 includes multiple first sealing ribs 1641 extending circumferentially along the connecting seat 1602, and the first sealing ribs 1641 abut against the bottom wall of the mounting groove 129; wherein, the multiple first sealing ribs 1641 are arranged around the sealing part 1603. In this way, the connecting groove 126 and the mounting groove 129 can be isolated. That is to say, even if external dust and other contaminants enter the mounting groove 129, they will not enter the connecting groove 126 due to the obstruction of the first sealing ribs 1641.

[0270] Furthermore, the sealing performance of the first sealing unit 1640 can be further improved through the multiple blocking of the first sealing ribs 1641.

[0271] To further improve the sealing performance of the first sealing unit 1640, in some embodiments, the first sealing unit 1640 may further include a connecting seat sealing ring (not shown in the figure); a sealing groove 1642 is formed between two adjacent first sealing ribs 1641, and the connecting seat sealing ring is embedded in the sealing groove 1642; the first sealing ribs 1641 and / or the connecting seat sealing ring abut against the bottom wall of the mounting groove 129. That is, the first sealing ribs 1641 abut against the bottom wall of the mounting groove 129, or the connecting seat sealing ring abuts against the bottom wall of the mounting groove 129, or both the first sealing ribs 1641 and the connecting seat sealing ring abut against the bottom wall of the mounting groove 129.

[0272] In this specific embodiment, both the first sealing rib 1641 and the connecting seat sealing ring abut against the bottom wall of the mounting groove 129. Thus, with the multiple combinations of the first sealing ribs 1641 and the connecting seat sealing ring, when external dust or other contaminants enter the mounting groove 129, they are blocked by these multiple sealing ribs 1641 and the connecting seat sealing ring, preventing external dust or other contaminants from entering the mounting groove 129. This ensures the sealing of the receiving cavity 1121 and the mounting cavity 111.

[0273] Of course, if there is no seam between the first sealing unit 1640 and the connecting seat 1602, the sealing performance of the first sealing unit 1640 can be further improved. Based on this, in some specific embodiments, the first sealing unit 1640 and the connecting seat 1602 are an integral structure. That is, the first sealing rib 1641 and the connecting seat sealing ring are both integral structures with the connecting seat 1602. In this way, seams can be avoided between the first sealing rib 1641 and the connecting seat 1602, and between the connecting seat sealing ring and the connecting seat 1602, thereby improving the overall sealing performance of the wiring seal 160.

[0274] like Figure 39 and Figure 40 As shown, in a specific implementation of this embodiment, two first sealing ribs 1641 are provided, meaning that the connecting seat sealing ring is provided as one. Of course, in other implementations, the number of first sealing ribs 1641 can also be set to more; here, there is no specific limitation on the number of first sealing ribs 1641.

[0275] Furthermore, the second sealing unit 1650 includes at least one second sealing rib 1651 disposed on the sealing portion 1603; in a direction perpendicular to the wire passage 1601, the first end of the second sealing rib 1651 is located on one side of the sealing portion 1603 and connected to the connecting seat 1602, and the second end of the second sealing rib 1651 extends to the other side of the sealing portion 1603 and is connected to the connecting seat 1602. This allows the second sealing rib 1651 to cross the sealing portion 1603 in a direction perpendicular to the wire passage 1601, that is, the second sealing rib 1651 can extend from one groove sidewall 1261 to another groove sidewall 1261 and abut against both groove sidewalls 1261. In actual use, even if there is dust or other dust on one side of the second sealing unit 1650 in the extension direction of the wire passage 1601, it will not enter the other side of the second sealing unit 1650 due to the stop of the second sealing rib 1651, thus ensuring the sealing of the connecting groove 126.

[0276] Furthermore, the first end of the second sealing rib 1651 is connected to the first sealing rib 1641 located on one side of the sealing portion 1603, and the second end of the second sealing rib 1651 is connected to the first sealing rib 1641 located on the other side of the sealing portion 1603. In this way, the first sealing rib 1641 and the second sealing rib 1651 are connected together, achieving multiple seals on the connecting groove 126 in the circumferential direction of the sealing portion 1603 and in the direction perpendicular to the wire passage 1601.

[0277] Of course, multiple second sealing ribs 1651 can be provided. Specifically, multiple second sealing ribs 1651 can be provided along the extension direction of the wire passage 1601. In this way, multiple seals are achieved in the opposite direction of the extension of the wire passage 1601, further preventing external dust and other contaminants from entering the connecting groove 126. This further ensures the sealing performance of the receiving cavity 1121 and the accommodating cavity 1122.

[0278] It is understandable that the second sealing rib 1651 and the sealing part 1603 can also be an integral structure. In this way, it is possible to avoid the formation of a seam between the second sealing rib 1651 and the sealing part 1603, thereby further improving the sealing performance of the wiring seal 160.

[0279] Before installing the wiring seal 160 into the first housing 121, defining the relative position between the wiring seal 160 and the first housing 121 can improve the assembly efficiency of the wiring seal 160 onto the first housing 121. Based on this, in some embodiments, a positioning groove (not shown in the figure) is formed on the sealing portion 1603, located between two adjacent second sealing ribs 1651; the main housing assembly 12 is provided with a positioning protrusion 1340 that mates with the positioning groove. Thus, before connecting the connector 1602 to the wall of the mounting groove 129, the positioning protrusion 1340 mates with the positioning groove, allowing for pre-positioning of the wiring seal 160 and the first housing 121, thereby improving the efficiency of subsequent connection between the connector 1602 and the mounting groove 129 via fasteners.

[0280] It is understandable that if the wiring seal 160 is exposed on the back side of the first housing 121, it will inevitably be worn. Therefore, in order to avoid this phenomenon to a certain extent, the electrical control box provided in this embodiment also includes a protective plate 180. The connecting seat 1602 has a seat back surface 1660 that is disposed opposite to the sealing part 1603. The protective plate 180 is connected to the seat back surface 1660 and covers the seat back surface 1660. In this way, by setting the protective plate 180, the back side of the wiring seal 160 can be protected, so as to avoid the wiring seal 160 being worn to a certain extent and improve the service life of the wiring seal 160.

[0281] To secure the protective plate 180 and to avoid using too many connectors and creating too many holes, in some embodiments, the protective plate 180 has a second mounting hole 1801. A fastener passes sequentially through the second mounting hole 1801, the first mounting hole 1604, and the connecting post 1291 to connect the protective plate 180, the connecting seat 1602, and the main box assembly 12. This allows for the secure fixing of the protective plate 180 without the need for additional fasteners. On the one hand, this ensures better sealing performance of the wiring seal 160; on the other hand, it reduces the installation cost of the protective plate 180.

[0282] As described above, the main control board 22 needs to be electrically connected to the central module 4. In this embodiment, the central module 4 is installed in a second housing 13, which is relatively independent of the first housing 121. Therefore, for the mounting cavity 111, the external wire 190 connecting the main control board 22 and the central module 4 needs to pass through the mounting cavity 111. This will affect the sealing performance of the mounting cavity 111. Based on this, please refer to... Figure 6As shown, the electrical control box provided in this embodiment also includes a wire outlet seal 210. A wire outlet notch 1111 is formed on the side wall of the mounting cavity 111. The wire outlet seal 210 is installed at the wire outlet notch 1111 and covers the wire outlet notch 1111. The wire outlet seal 210 presses against the cover structure 124. The wire outlet seal 210 has a wire passage groove 2101 or a wire passage hole. One end of the external wire 190 is connected to the main control board 22, and the other end of the external wire 190 is guided to the outside of the mounting cavity 111 through the wire passage groove 2101 or the wire passage hole. The external wire 190 is a signal line and / or a power line.

[0283] In contrast to the waterproof gland seal method used in related technologies, in this embodiment, the cable exit seal 210 is installed at and covers the cable exit notch 1111, and the cable exit seal 210 abuts against the cover structure 124, allowing the external wire 190 to naturally pass through the cable groove 2101 or the cable hole. Thus, when installing the cable exit seal 210, no other auxiliary tools are needed, and the cable exit seal 210 can be installed on the side panel 1213 without complicated installation steps. This improves the connection and exit efficiency of the external wire 190, thereby enhancing the assembly efficiency of the electrical control box provided in this embodiment.

[0284] Meanwhile, in related technologies, the elasticity of the rubber sealing ring of the waterproof gland will decrease after repeated disassembly, and the sealing performance will decline. However, the wire groove 2101 or wire hole of the wire exit seal 210 used in this embodiment dynamically fits with the external wire 190, which can compensate for the thermal expansion and contraction and vibration displacement of the external wire 190. Even after the external wire 190 has been inspected and repaired many times, the wire exit seal 210 can still have a high sealing performance.

[0285] like Figure 6 As shown, the external wire 190 connecting the first interface 222 and the third interface 42 is a signal line, and the external wire 190 connecting the second interface 223 and the fourth interface 43 is a power line. It should be noted that in other embodiments, the first interface 222 and the second interface 223 can be combined into one. No specific limitation is made here.

[0286] Please continue to combine Figure 42 and Figure 43 , Figure 42 This is a three-dimensional structural diagram of the outgoing wire seal in the electrical control box provided in an embodiment of this application. Figure 43 for Figure 42A three-dimensional structural schematic diagram from another perspective. As shown in the figure, in some embodiments, the cable exit seal 210 includes a sealing body 2102 and a cable passage portion 2103; the sealing body 2102 has a slot 2104 that engages with the side panel 1213, and a cable passage groove 2101 or a cable passage hole is formed on the cable passage portion 2103. In this way, the connection between the cable exit seal 210 and the side panel 1213 can be realized, and the external wire 190 can pass through the cable passage groove 2101 or the cable passage hole.

[0287] Specifically, the slot 2104 has a first groove wall 2105 and a second groove wall 2106 disposed opposite to each other; the first groove wall 2105 is located inside the mounting cavity 111 and fits against the inner wall surface of the side panel 1213; the second groove wall 2106 is located outside the mounting cavity 111 and fits against the outer wall surface of the side panel 1213. In this way, not only can the connection between the cable outlet seal 210 and the side panel 1213 be realized, but also the sealing connection between the cable outlet seal 210 and the side panel 1213 can be realized, improving the sealing performance of the mounting cavity 111.

[0288] Furthermore, the side panel 1213 has a sub-panel 1350 facing the first panel 1212; wherein the slot 2104 is inserted into the sub-panel 1350.

[0289] It is understandable that during the use of the electrical control box, slight vibrations of the outdoor unit may cause the external wire 190 to come loose from the cable tray 2101. Therefore, to avoid this phenomenon to some extent, in some embodiments, a cable tray 2101 is formed on the cable guide 2103, and a limiting hole 2107 is formed on the bottom wall of the cable tray 2101 to limit the external wire 190. In this way, through the cooperation of the limiting hole 2107 and the external wire 190, the external wire 190 can be confined to the bottom of the cable tray 2101, thereby preventing the external wire 190 from coming loose from the cable tray 2101 to some extent. Thus, the stability of the electrical control box provided in this embodiment can be improved.

[0290] In order to achieve the function of limiting the external wire 190 by the limiting hole 2107, in some embodiments, the diameter of the limiting hole 2107 is larger than the width of the wire passage 2101. In this way, the external wire 190 can be prevented from coming out of the opening of the wire passage 2101 to a certain extent in the depth direction of the wire passage 2101.

[0291] The depth direction of the wire channel 2101 is consistent with the thickness direction of the main box assembly 12, and the width direction of the wire channel 2101 is consistent with the width direction of the main box assembly 12.

[0292] Please continue to combine Figure 44 , Figure 44This is a schematic diagram of the planar structure of the outgoing wire seal in the electrical control box provided in this application embodiment. It is understood that the external wires 190 will converge and exit from the middle of the wire-passing portion 2103. Therefore, it is necessary to ensure the structural strength of the middle portion of the wire-passing portion 2103. Based on this, in some optional embodiments, the wire-passing portion 2103 has a wire-passing sub-portion 2108 and end connecting portions 2109 located on both sides. The central axis of the wire-passing portion 2103 is formed at the wire-passing sub-portion 2108. The structures on both sides of the wire-passing sub-portion 2108 are arranged axially symmetrically about the central axis, and the thickness of the wire-passing portion 2103 gradually decreases from the wire-passing sub-portion 2108 to the end connecting portion 2109 on either side. Thus, on the one hand, the structural strength of the wire-passing sub-portion 2108 can be ensured by limiting the thickness; on the other hand, the stress uniformity of the outgoing wire seal 210 can be improved by limiting the axially symmetrical structure. Therefore, the structural strength of the outgoing wire seal 210 can be improved in two aspects.

[0293] The thickness direction of the wire guide section 2103 is consistent with the height direction of the main box assembly 12.

[0294] Of course, there can be multiple external wires 190 connecting the main control board 22 and the central module 4. Therefore, in some specific embodiments, multiple wire passage slots 2101 arranged at intervals can be provided on the wire passage part 2103.

[0295] It is understandable that a space should be formed on the first housing 121 so that when the external wire 190 passes through the mounting cavity 111, it can be accommodated in the space to avoid abrupt changes in the extension direction of the external wire 190, which would affect the service life of the external wire 190.

[0296] Based on this, the connecting sub-plate 1215, the side panel 1213, and the first panel 1212 enclose an external wiring space 1370; the wire through groove 2101 or the wire through hole connects the mounting cavity 111 and the external wiring space 1370. That is, the wire outlet notch 1111 is located between the mounting cavity 111 and the external wiring space 1370. The connecting part 1330 is located within the external wiring space 1370.

[0297] To facilitate the passage of the external wire 190 through the wire channel 2101, in some specific embodiments, each wire channel 2101 includes a first channel segment 2111 and a second channel segment 2112 that are connected. In the extension direction of the external wire 190, the size of the first channel segment 2111 is smaller than the size of the second channel segment 2112. The first channel segment 2111 is located inside and connected to the mounting cavity 111, while the second channel segment 2112 is connected to the external wiring space 1370. In other words, the length of the first channel segment 2111, which is located near the mounting cavity 111, is shorter than the length of the second channel segment 2112, allowing the external wire 190 to pass through the first channel segment 2111 quickly, reducing the sealing risk caused by the larger length of the first channel segment 2111.

[0298] Of course, in some other embodiments, multiple spaced wire holes may be provided on the wire-passing part 2103. That is, the external wire 190 passes through the wire holes by directly opening holes in the wire-passing part 2103.

[0299] It is understood that in this embodiment, after the external wire 190 passes through the mounting cavity 111, its exit direction will change, thus requiring a larger space to allow for this change. Therefore, in some optional embodiments, a recessed avoidance area 2120 is formed on the outer side of the wire-passing portion 2103, which is connected to the external wiring space 1370 via the wire groove 2101 or the wire-passing hole. This provides ample space for the external wire 190 to change direction, thus preventing collisions and wear between the external wire 190 and other structural components, thereby extending the service life of the external wire 190 and further extending the service life of the electrical control box provided in this embodiment.

[0300] Since the outlet seal 210 is installed at and covers the outlet notch 1111, in this specific embodiment, a portion of the inner wall of the mounting cavity 111 is formed by the cold plate body 1211, the side plate 1213, and the outlet seal 210, while another portion of the inner wall of the mounting cavity 111 is formed by the cover structure 124. This ensures the sealing of the mounting cavity 111.

[0301] Please continue to combine Figures 45 to 48 , Figure 45 This diagram illustrates the fit between the cover structure and the outlet seal in the electrical control box provided in this embodiment of the application. Figure 46 for Figure 45 A schematic diagram of the planar structure shown. Figure 47 for Figure 46 A cross-sectional view along the FF direction. Figure 48 for Figure 47A magnified view of the partial structure at point G. A first sealing surface 2130 and a second sealing surface 2140 are formed on the sealing body 2102. The side of the side enclosure 1242 facing the bottom wall of the mounting cavity 111 presses against the first sealing surface 2130, and the side of the protruding ridge 1243 facing the bottom wall of the mounting cavity 111 presses against the second sealing surface 2140. Thus, through the contact between the first sealing surface 2130 and the side enclosure 1242, and the contact between the second sealing surface 2140 and the protruding ridge 1243, a sealing connection between the sealing body 2102 and the cover structure 124 can be achieved, thereby further ensuring the sealing performance within the mounting cavity 111.

[0302] Understandably, if the positioning between the outlet seal 210 and the first housing 121 can be achieved, the installation efficiency of the outlet seal 210 on the first housing 121 can be improved. Based on this, the outlet seal 210 also includes an extension connecting portion 2150. The connecting sub-plate 1215 is provided with a positioning protrusion 1360, and the extension connecting portion 2150 has a mating hole 2160 that engages with the positioning protrusion 1360. Thus, through the mating connection between the positioning protrusion 1360 and the mating hole 2160, the relative position between the outlet seal 210 and the first housing 121 can be restricted, thereby improving the assembly efficiency between the outlet seal 210 and the first housing 121. Specifically, the positioning protrusion 1360 is provided on the connecting portion 1330.

[0303] In a specific implementation of this embodiment, to facilitate the engagement of the positioning protrusion 1360 and the mating hole 2160, the extended connecting portion 2150 may include two spaced-apart sub-connecting portions 2151, with the mating hole 2160 formed between the two sub-connecting portions 2151. Specifically, a portion of the mating hole 2160 is formed on one sub-connecting portion 2151, and another portion is formed on the other sub-connecting portion 2151. The specific arrangement of the extended connecting portion 2150 is not limited here.

[0304] Please combine Figure 49 and Figure 50 As shown, Figure 49 This is a structural diagram of the ninth partial structure of the electrical control box provided in the embodiments of this application. Figure 50 for Figure 49A magnified view of the partial structure at point H. Since the side panel 1213 also has a flanged structure 1240, a clearance groove 2170 is formed on the slot 2104 to avoid the flanged structure 1240. This achieves the insertion fit between the cable outlet seal 210 and the sub-panel 1350 of the side panel 1213, while avoiding interference with the flanged structure 1240. This makes the shape of the cable outlet seal 210 more compatible with the structure of the cover structure 124 and the side panel 1213, thereby further improving the sealing performance of the cable outlet seal 210.

[0305] Since the slot 2104 is inserted into the side panel 1213, the shape of the slot 2104 is defined by the panel body 1230 and the flange structure 1240.

[0306] It is understandable that errors inevitably occur during the manufacturing process of the wire passage 2101 and the wire passage hole, resulting in the width of the wire passage 2101 or the diameter of the wire passage hole being too large. Therefore, in order to avoid sealing problems caused by process errors to a certain extent, a sealing membrane (not shown in the figure) can be set in the wire passage 2101 or the wire passage hole. Since the sealing membrane is very thin, the external wire 190 can pass directly through the sealing membrane. In this way, the effective passage of the external wire 190 is satisfied on the one hand, and the adverse effects of process errors on the sealing performance are avoided on the other hand.

[0307] Of course, the material of the outgoing cable seal 210 can also refer to that of the wiring seal 160 mentioned above, that is, the outgoing cable seal 210 can be a rubber part or a silicone part. Here, no specific restrictions are placed on the material of the outgoing cable seal 210.

[0308] This embodiment also provides a heating, ventilation, and air conditioning (HVAC) device, including an indoor unit and an outdoor unit, the outdoor unit including the aforementioned electrical control box. The electrical control box has already been described in detail in the above embodiments and will not be repeated here.

[0309] The outdoor unit's casing 100 houses a fan (not shown in the figure), and the casing 100 defines an air outlet duct. Generally, to improve heat dissipation for the electrical control box, the control box can be placed within the air outlet duct. Of course, the outdoor unit also includes other modules and components. The structure of the indoor unit and the other modules or components included in the outdoor unit will not be described in detail here.

Claims

1. An electrical control box, characterized in that, include: The first box body forms a receiving cavity; The power module is installed in the accommodating cavity; A terminal block protective shell is connected to the first housing, and the terminal block protective shell forms a protective cavity that is independent of the receiving cavity; A power connector includes an insulating base and a power receiving part connected to the insulating base. The insulating base is connected to the first housing. A first end of the power receiving part extends into the accommodating cavity and is electrically connected to the power module. A second end of the power receiving part is used to electrically connect to an external power cord extending into the protective cavity.

2. The electrical control box according to claim 1, characterized in that, The power module is a filter board.

3. The electrical control box according to claim 1 or 2, characterized in that, The first housing is provided with an installation port that communicates with the receiving cavity; The insulating base includes an insulating body and a connecting flange protruding from the outer wall of the insulating body. The insulating body extends into the accommodating cavity, and the electrical contact portion passes through the insulating body. The first housing has a limiting groove surrounding the mounting opening on one side of the receiving cavity, and the connecting flange is embedded in the limiting groove and connected to the first housing.

4. The electrical control box according to any one of claims 1 to 3, characterized in that, It also includes a terminal block seal, which is disposed on the insulating base and presses against the first housing.

5. The electrical control box as described in claim 4, characterized in that, The terminal block seal is a terminal block sealing ring; The terminal block sealing ring includes a main sealing part and a sealing lip connected together, and the main sealing part is connected to the connecting flange; The sealing lip protrudes from the connecting flange and presses against the first housing.

6. The electrical control box as described in claim 5, characterized in that, The sealing lips are spaced in multiples along the radial interval of the terminal block sealing ring.

7. The electrical control box as described in claim 6, characterized in that, The sealing lip is set at two intervals along the radial direction of the terminal block sealing ring.

8. The electrical control box as described in any one of claims 5 to 7, characterized in that, The main sealing part has a cavity that extends circumferentially along the main sealing part.

9. The electrical control box as described in any one of claims 5 to 7, characterized in that, The connecting flange has an annular groove for embedding the main sealing part, and the sealing lip protrudes from the annular groove.

10. The electrical control box as described in any one of claims 5 to 7, characterized in that, The terminal block sealing ring and the connecting flange are an integral structure.

11. The electrical control box according to any one of claims 3 to 10, characterized in that, The first box body includes a cold plate body and a first box cover. The first box cover is fastened to the cold plate body and together with the cold plate body, they form the receiving cavity. The mounting opening is provided on the main body of the cold plate, and the insulating base is installed at the mounting opening and is partially exposed on the side of the main body of the cold plate facing away from the accommodating cavity.

12. The electrical control box according to any one of claims 3 to 10, characterized in that, The first box body includes a cold plate body, a first side panel, and a first box lid; The first enclosure is connected to the cold plate body, and the first box cover is connected to the first enclosure. The cold plate body, the first enclosure, and the first box cover together enclose the accommodating cavity. The mounting opening is provided on the main body of the cold plate, and the insulating base is installed at the mounting opening and is partially exposed on the side of the main body of the cold plate facing away from the accommodating cavity.

13. The electrical control box as described in claim 11 or 12, characterized in that, The cold plate body includes a first sub-plate, which has a first plate surface and a second plate surface disposed opposite to each other. The first plate surface forms the bottom wall of the accommodating cavity, and the limiting groove is formed on the bottom wall of the accommodating cavity; The connecting flange abuts against the bottom wall of the limiting groove and is connected to the first sub-plate.

14. The electrical control box as described in claim 13, characterized in that, The connecting flange is provided with a first positioning hole and a first connecting hole on both sides; The bottom wall of the limiting groove is provided with a positioning post that mates with the first positioning hole; The bottom wall of the limiting groove is provided with a second connecting hole opposite to the first connecting hole, and the connecting flange is connected to the first sub-plate by a first fastener that passes through the first connecting hole and the second connecting hole in sequence.

15. The electrical control box as described in claim 14, characterized in that, The second connecting hole is a blind hole.

16. The electrical control box as described in claim 14 or 15, characterized in that, Both the first positioning hole and the first connecting hole are located on the side of the terminal block seal away from the insulating body.

17. The electrical control box as described in any one of claims 2 to 16, characterized in that, The electrical contact part is a conductive post, and a first fastening hole is formed on the conductive post; a second fastening hole is formed on the filter plate. The filter plate and the conductive post are connected together by a second fastener that passes through the second fastening hole and the first fastening hole in sequence.

18. The electrical control box as described in any one of claims 1 to 17, characterized in that, It also includes a foolproof structure, which is disposed between the insulating base and the first housing.

19. The electrical control box as described in claim 18, characterized in that, The foolproof structure includes a foolproof protrusion, which is disposed on the first housing. The insulating base has a foolproof notch that cooperates with the foolproof protrusion.

20. The electrical control box as described in claim 18 or 19, characterized in that, There are two anti-mistake structures, and the two anti-mistake structures are respectively arranged on both sides of the insulating base along the length direction of the insulating base.

21. The electrical control box as described in any one of claims 11 to 16, characterized in that, The terminal block protective housing includes a first housing portion and a second housing portion; The first shell portion is connected to the cold plate body, and the second shell portion is connected to the first shell portion, and together with the first shell portion, they form the protective cavity; The first housing portion has a clearance opening through which the insulating base passes.

22. The electrical control box as described in claim 21, characterized in that, The terminal block protective shell also includes a reinforcing strip structure disposed on the first shell portion, the reinforcing strip structure being disposed around the clearance opening, and the reinforcing strip structure being located within the protective cavity; The shape of the reinforcing strip structure is adapted to the shape of the clearance opening.

23. The electrical control box as described in claim 22, characterized in that, The reinforcing strip structure is an integral part of the first shell.

24. The electrical control box as described in any one of claims 21 to 23, characterized in that, The second housing portion has a power line outlet that communicates with the protective cavity; The external power cord exits the protective cavity through the power cord outlet.

25. The electrical control box as described in claim 24, characterized in that, It also includes a cable outlet structure, which is disposed inside the protective cavity and is disposed opposite to the power cord outlet. The cable outlet structure has a cable outlet cavity that communicates with the power cord outlet. The external power cord passes through the outlet cavity and the power cord outlet in sequence and exits the protective cavity.

26. The electrical control box as described in claim 25, characterized in that, The cable outlet structure includes a first cable outlet seat and a second cable outlet seat connected to each other, with the first cable outlet seat connected to the first housing portion; The outlet cavity has a first cavity wall and a second cavity wall disposed opposite to each other, the first cavity wall being formed on the first outlet seat and the second cavity wall being formed on the second outlet seat; The first cavity wall has multiple spaced-apart wire outlet notches.

27. The electrical control box as described in claim 26, characterized in that, In the arrangement direction of the plurality of said outlet notches, the middle part of the first cavity wall is recessed relative to the two sides of the first cavity wall; The middle part of the second cavity wall has a recess that is recessed away from the first cavity wall.

28. The electrical control box as described in claim 26 or 27, characterized in that, Multiple spaced first grooves are formed on both the first cavity wall and the second cavity wall; The extension direction of the first groove is consistent with the arrangement direction of the plurality of wire outlet recesses, and the arrangement direction of the plurality of first grooves is perpendicular to the arrangement direction of the plurality of wire outlet recesses.

29. The electrical control box as described in any one of claims 26 to 28, characterized in that, The second outlet terminal has an operating side that is located away from the first outlet terminal; In the arrangement direction of the plurality of said outlet notches, the middle part of the operating side is raised relative to the two sides.

30. The electrical control box as described in claim 29, characterized in that, The operating side is provided with multiple spaced-apart second grooves; The extension direction of the second groove is consistent with the arrangement direction of the plurality of wire outlet recesses, and the arrangement direction of the plurality of second grooves is perpendicular to the arrangement direction of the plurality of wire outlet recesses.

31. The electrical control box as described in any one of claims 26 to 30, characterized in that, The first outlet socket is provided with a buckle and a insert, and the first housing is provided with a third connection hole and a fourth connection hole; The buckle engages with the third connecting hole, and the insert engages with the fourth connecting hole to detachably connect the first cable outlet and the first housing.

32. The electrical control box as described in any one of claims 26 to 30, characterized in that, The first cable outlet is provided with multiple latching parts, and the first housing is provided with multiple snap-fit ​​holes, with each of the multiple snap-fit ​​holes corresponding to one of the multiple latching parts; Each of the aforementioned latching parts engages with the corresponding latching hole to detachably connect the first cable outlet to the first housing.

33. The electrical control box as described in any one of claims 26 to 32, characterized in that, It also includes a third fastener, which passes through the second cable outlet, the first cable outlet, and the first housing in sequence, connecting the cable outlet structure to the first housing.

34. The electrical control box as described in any one of claims 26 to 33, characterized in that, One of the first cable outlet and the second cable outlet is provided with a positioning piece, and the other is provided with a second positioning hole for the positioning piece to be inserted.

35. The electrical control box as described in any one of claims 21 to 34, characterized in that, The first shell portion and the second shell portion are detachably connected by a fourth fastener.

36. The electrical control box as described in any one of claims 21 to 35, characterized in that, The first shell portion includes a shell body and a functional mounting portion, wherein the shell body is connected to the first shell portion; The functional mounting part is connected to the side of the shell body opposite to the first shell part, and the functional mounting part is provided with at least one functional assembly hole.

37. The electrical control box as described in any one of claims 1 to 36, characterized in that, The power receiving part includes a plurality of conductive posts, the first end of which is electrically connected to the power module, and the second end of which is used to be electrically connected to the external power line; The insulating base is connected to a plurality of partitions, and the second ends of two adjacent conductive posts are separated by one of the partitions.

38. The electrical control box as described in any one of claims 1 to 37, characterized in that, It also includes at least one grounding socket connected to the first housing, the grounding socket being located to the side of the power terminal block.

39. The electrical control box as described in any one of claims 1 to 38, characterized in that, The first end of the power receiving part faces the back side of the terminal block protective shell, and the second end of the power receiving part faces the front side of the terminal block protective shell.

40. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, Includes the housing and the electrical control box as described in any one of claims 1 to 39; The housing has an inspection port, and the second end of the power connection part is positioned facing the inspection port.

41. The HVAC equipment as described in claim 40, characterized in that, The power terminal block is located near the bottom of the housing.

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