Wire terminal, electrical control box and heating and ventilation device

Abstract

This application relates to the field of electrical connector technology and discloses a terminal block, an electrical control box, and HVAC equipment. The terminal block is installed in the electrical control box and includes: a base body for fixed connection with the box body of the electrical control box; an electrical connector that passes through the base body along a first direction and forms a first connection terminal and a second connection terminal on both sides of the base body along the first direction, respectively. The first connection terminal is used for electrical connection with electrical components inside the electrical control box, and the second connection terminal is used for electrical connection with an external wiring harness; and a sealing member disposed on the side of the base body where the first connection terminal is formed, for forming a seal between the base body and the box body. Therefore, the wiring requirements of the electrical control box at the location of the terminal block can be met, and the seal between the base body and the box body can be achieved through the sealing member, effectively preventing contaminants located outside the electrical control box from entering and improving the protective effect of the electrical control box at the location of the terminal block.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and in particular to a terminal block, electrical control box, and heating and ventilation equipment. Background Technology

[0002] Currently, in existing HVAC equipment junction boxes, there is a need to connect external wiring harnesses. The wiring structure on the junction box is usually led out by the wiring harness or arranged on the box body. The protection at the wiring points of the junction box is poor, and the safety of the junction box cannot be guaranteed. Especially for junction boxes used in outdoor scenarios, there is a problem of rainwater seeping into the box body, which seriously affects the safety of the wiring circuit and poses a safety hazard. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide a terminal block that can meet wiring requirements while improving the sealing effect at the wiring point.

[0004] Another objective of this application is to propose an electrical control box.

[0005] Another objective of this application is to provide a heating, ventilation, and air conditioning (HVAC) device.

[0006] According to a first aspect embodiment of the present application, the terminal block is installed in an electrical control box, and the terminal block includes: a base body for fixed connection with the box body of the electrical control box; an electrical connector that passes through the base body along a first direction and forms a first connection terminal and a second connection terminal on both sides of the base body along the first direction, the first connection terminal for electrical connection with electrical components inside the electrical control box, and the second connection terminal for electrical connection with an external wiring harness; and a sealing member disposed on the side of the base body where the first connection terminal is formed, and for forming a seal between the base body and the box body.

[0007] According to the embodiments of this application, the wiring terminal has a first connection terminal and a second connection terminal. The first connection terminal and the second connection terminal can be used to electrically connect electrical components in the external wiring harness and the electrical control box, thereby meeting the wiring requirements of the electrical control box at the location where the wiring terminal is set. Furthermore, the base body and the box body can be sealed by a sealing element to effectively prevent contaminants located outside the electrical control box from entering, thereby improving the protection effect of the electrical control box at the location where the wiring terminal is set.

[0008] According to some embodiments of this application, the seat body has a mounting groove on the side where the first connecting terminal is formed, the sealing member is disposed in the mounting groove, and a portion of the sealing member protrudes from the mounting groove toward one side of the housing.

[0009] According to some embodiments of this application, the sealing element is constructed as a sealing ring, and the mounting groove is arranged in annular shape around the electrical connector.

[0010] According to some embodiments of this application, the sealing ring has a first annular protrusion and a second annular protrusion on the side protruding from the mounting groove, the first annular protrusion surrounding the second annular protrusion and arranged at intervals.

[0011] According to some embodiments of this application, the sealing ring has a hollow portion formed inside the sealing ring and extends in an annular shape along the circumferential direction of the sealing ring.

[0012] According to some embodiments of this application, the main body of the base includes: a plug-in base for mounting the electrical connector and forming two plug-in slots that are respectively open to both sides in the first direction, wherein the two ends of the electrical connector form the first connection terminal and the second connection terminal in the two plug-in slots respectively; and a connecting base that is circumferentially connected to the outer side of the plug-in base and is used to connect and fix it to the housing.

[0013] According to some embodiments of this application, the outer peripheral wall of the connector is provided with a first annular flange and a second annular flange protruding outwards. The first annular flange and the second annular flange are arranged at intervals along the first direction and define a drainage groove arranged circumferentially around the connector.

[0014] According to some embodiments of this application, on the outer peripheral wall of the connector, the protrusion dimension of the first annular flange is smaller than that of the second annular flange, and the terminal further includes a cover, which covers the connector, and the open end of the cover abuts against the second annular flange.

[0015] According to some embodiments of this application, the cover includes: a cover body, which is covered and connected to the connector; and a cable outlet, which is connected to one circumferential side of the cover body and is used for the external wiring harness to pass through the cover body.

[0016] According to some embodiments of this application, the cover body is provided with a drainage hole adjacent to the second annular flange.

[0017] According to some embodiments of this application, the drainage channel includes: a guide section for guiding water to one side of the drainage hole; and a confluence section, the two ends of which are respectively connected to the two ends of the guide section and are used to collect water and guide it to the drainage hole.

[0018] According to some embodiments of this application, the drainage hole is disposed through the peripheral wall of the cover body, and at least a portion of the drainage hole is disposed opposite to the drainage groove in the direction of the inner and outer sides of the peripheral wall of the cover body.

[0019] According to some embodiments of this application, the guiding section includes: a first guiding section and a second guiding section, one end of the first guiding section and one end of the second guiding section are connected, and the first guiding section extends obliquely relative to the second guiding section, and the included angle formed between the first guiding section and the second guiding section opens towards the drain hole; a third guiding section, the third guiding section is connected between the other end of the first guiding section and one end of the confluence section, and is used to guide water to the confluence section; a fourth guiding section, the fourth guiding section is connected between the other end of the second guiding section and the other end of the confluence section, and is used to guide water to the confluence section.

[0020] According to some embodiments of this application, the drainage hole and the cable outlet are located on the same side of the cover body.

[0021] According to some embodiments of this application, the end of the cable outlet away from the cover body is provided with a cable outlet, and the cable outlet is provided with a snap-fit ​​part at the cable outlet. A cable clamping groove is defined between the snap-fit ​​part and the end of the cable outlet, and the cable clamping groove is used to snap-fit ​​with the external wiring harness.

[0022] According to some embodiments of this application, the connecting seat is provided with a buckle at the second annular flange, and the outer wall surface of the cover body is formed with a slot, and the buckle engages with the slot.

[0023] According to some embodiments of this application, the connector is provided with a mounting hole, which is configured to allow a connector to pass through, so as to connect and fix the connector to the box body by means of the connector cooperating with a connection structure on one side of the box body.

[0024] According to some embodiments of this application, the seat body and the electrical connector are integrally injection molded.

[0025] The wiring terminals according to the embodiments of this application have at least the following advantages over the prior art:

[0026] (1) An electrical connection structure is formed on the outside of the electrical control box through the wiring terminals, and there is good sealing between the wiring terminals and the wall of the box. The wiring and sealing requirements can be met at the wiring terminals at the same time.

[0027] (2) A sealing element is provided between the main body of the seat and the box body, and multiple annular protrusions are formed on the side of the sealing element that abuts against the box body to form multiple seals on the circumferential outer side of the electrical connector, thereby further improving the sealing and protection effect of the sealing element.

[0028] (3) The wiring terminal is covered with a cover on the main body of the base. The cover can shield and protect the second connection terminal, further improving the protection effect of the wiring terminal. The cover and the main body of the base can be fixed by plugging and connecting. The installation method is simple and highly reliable. The cover can cover the outer periphery of the connection base, so that the main body of the base and the electrical connection are exposed.

[0029] (4) A drainage groove is formed in the circumferential direction of the main body, and a drainage hole communicating with the drainage groove is formed on the cover. The drainage groove can guide water to the drainage hole and discharge it outward from the drainage hole to improve the waterproof performance of the terminal block.

[0030] (5) The main body of the base and the electrical connector are integrally injection molded, so that the electrical connector can be fixed on the main body of the base without the need for separate assembly of the electrical connector, saving the assembly process of the terminal block and helping to improve the production efficiency of the terminal block.

[0031] According to the second aspect of this application, the electrical control box includes the aforementioned wiring terminals.

[0032] According to some embodiments of this application, the electrical control box includes a box body, the side wall of the box body is provided with an installation port, the installation port can be plugged into the wiring terminal, and the sealing member is adapted to abut against the side wall of the box body to form a seal between the box body and the base body.

[0033] The advantages of the electrical control box compared to existing technologies are the same as those of the aforementioned wiring terminals, and will not be repeated here.

[0034] According to a third aspect embodiment of the present application, the HVAC equipment includes a fan and the aforementioned electrical control box, the wiring terminal is configured as the fan wiring harness wiring terminal of the fan, and the electrical connector is electrically connected to the fan.

[0035] The advantages of the electrical control box compared to existing technologies are the same as those of the aforementioned electrical control box, and will not be repeated here.

[0036] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0037] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0038] Figure 1 This is a schematic diagram of the structure of a heating, ventilation, and air conditioning (HVAC) device according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the structure of the electrical control box according to an embodiment of this application;

[0040] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0041] Figure 4 This is a front view of the electrical control box according to an embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the structure of a wiring terminal according to an embodiment of this application. Figure 1 ;

[0043] Figure 6 This is a schematic diagram of the structure of a wiring terminal according to an embodiment of this application. Figure 2 ;

[0044] Figure 7 This is an exploded view of a wiring terminal according to an embodiment of this application;

[0045] Figure 8 This is a cross-sectional view of a terminal block according to an embodiment of this application;

[0046] Figure 9 This is a partial exploded view of the electrical control box according to one embodiment of this application;

[0047] Figure 10 This is a schematic diagram of the structure of the seat body according to an embodiment of this application.

[0048] Figure label:

[0049] HVAC equipment 1000; casing 200;

[0050] Electrical control box 100; box body 20; mounting port 201; annular boss 202; connector 30;

[0051] Terminal block 10;

[0052] Seat body 1; mounting groove 101; drainage groove 102; first guide section 1021; second guide section 1022; third guide section 1023; fourth guide section 1024; confluence section 1025; plug-in seat 11; plug-in groove 113; guide and limiting part 114; connecting seat 12; first annular flange 121; second annular flange 122; first connecting support arm 123; second connecting support arm 124; buckle 125; reinforcing rib 126; installation mark 127; mounting hole 103;

[0053] Electrical connector 2; first connecting terminal 21; second connecting terminal 22;

[0054] Seal 3; First annular protrusion 31; Second annular protrusion 32; Hollow portion 33;

[0055] Cover body 4; Cover body 41; Slot 411; Slot structure 412; Drainage hole 401; Avoidance notch 402; Cable outlet 42; Cable outlet 421; Stepped part 43. Detailed Implementation

[0056] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0057] The following is for reference. Figures 1-9 The terminal block 10 according to an embodiment of this application is installed in the electrical control box 100 to form a wiring structure at the electrical control box 100. The terminal block 10 is used to connect to an external wiring harness so that the electrical control box 100 can be electrically connected to an external device through the terminal block 10 and the external wiring harness. The "external device" may include a motor, power supply, etc.

[0058] According to an embodiment of this application, the terminal block 10 includes: a base body 1, an electrical connector 2, and a seal 3.

[0059] Specifically, the base body 1 is used to fix the box body 20 of the electrical control box 100 so that the wiring terminal 10 is installed and fixed at the electrical control box 100 through the base body 1. The electrical connector 2 passes through the base body 1 along the first direction so that a first connection terminal 21 and a second connection terminal 22 are formed on both sides of the base body 1 along the first direction through the electrical connector 2. The first connection terminal 21 is used to electrically connect with the electrical components inside the electrical control box 100, and the second connection terminal 22 is used to electrically connect with the external wiring harness. The sealing member 3 is provided on the side of the base body 1 where the first connection terminal 21 is formed so that the sealing member 3 forms a seal between the base body 1 and the box body 20, thereby improving the sealing effect between the wiring terminal 10 and the box body 20 and preventing dust, water and other contaminants from entering through the gap between the base body 1 and the box body 20.

[0060] The aforementioned “electrical components” include, but are not limited to, wires, circuit boards, etc.; the aforementioned “electrical connectors 2” include, but are not limited to, metal components such as copper busbars and pins.

[0061] Reference Figure 7As shown, in the terminal block 10, a first connection terminal 21 and a second connection terminal 22 can be formed on both sides of the base body 1 through the electrical connector 2, so that the terminal block 10 can be connected to the electrical components in the electrical control box 100 through the first connection terminal 21, and an electrical connection structure for electrical connection and cooperation with the external wiring harness is formed on the outside of the box body 20 through the second connection terminal 22.

[0062] During the assembly of the terminal block 10 and the housing 20, the base body 1 is installed at the housing 20 of the electrical control box 100, and the sealing member 3 is arranged on the side of the base body 1 where the first connection terminal 21 is formed. Thus, while the first connection terminal 21 is electrically connected to the electrical components inside the housing 20, the sealing member 3 is arranged between the base body 1 and the housing 20 to form a seal between the base body 1 and the housing 20, thereby preventing external contaminants from contaminating the terminal block 10 or the electrical components inside the housing 20.

[0063] It should be noted that currently, in existing junction boxes, there is a need to connect external wiring harnesses. The wiring structure on the junction box is usually led out by the wiring harness or arranged on the box body 20. The protection at the wiring points of the junction box is poor, and the safety of the junction box cannot be guaranteed. Especially for junction boxes used in outdoor scenarios, there is a problem of rainwater seeping into the box body 20, which seriously affects the safety of the wiring circuit and poses a safety hazard. Specifically, the aforementioned "junction box" can be constructed as an electrical control box 100.

[0064] In this application, the terminal block 10 has a first connection terminal 21 and a second connection terminal 22. The first connection terminal 21 and the second connection terminal 22 can be used to electrically connect the electrical components in the external wiring harness and the electrical control box 100, thereby meeting the wiring requirements of the electrical control box 100 at the location where the terminal block 10 is set. Furthermore, the base body 1 and the box body 20 can be sealed by the sealing member 3, effectively preventing contaminants located outside the electrical control box 100 from entering and improving the protection effect of the electrical control box 100 at the location where the terminal block 10 is set.

[0065] Specifically, the terminal block 10 is fixed to the housing 20 via the base body 1, and the terminal block 10 is electrically connected to the electrical components inside the housing 20 via the first connecting terminal 21. The second connecting terminal 22 located on the outside of the housing 20 can be used to electrically connect to the external wiring harness to realize the electrical connection between the electrical control box 100 and the external wiring harness. Moreover, a seal can be formed between the base body 1 and the housing 20 by the sealing member 3, so that the terminal block 10 can meet the wiring requirements of the electrical control box 100 while improving the protection effect at the electrical connection mating point, which helps to improve the safety of the terminal block 10 in the electrical connection state.

[0066] It is understandable that, compared with the existing solution that integrates the electrical connection structure directly onto the housing 20, the electrical connector 2 in this application is arranged on the base body 1, and while being fixed to the housing 20 by the base body 1, the electrical connector 2 achieves electrical connection and cooperation with the electrical components inside the housing 20, thereby improving the protection effect of the electrical control box 100 at the terminal 10 by improving the sealing performance at the terminal 10.

[0067] Reference Figure 7 As shown, in some embodiments of this application, the base body 1 has a mounting groove 101 on the side where the first connecting terminal 21 is formed, and the mounting groove 101 is used to install the sealing member 3, so that the first connecting terminal 21 and the sealing member 3 can be arranged on the same side of the base body 1, and part of the sealing member 3 protrudes from the mounting groove 101 toward the box body 20.

[0068] When a portion of the seal 3 protrudes from the mounting groove 101, the portion of the seal 3 protruding from the mounting groove 101 can abut against the mounting surface of the housing 20, thereby allowing the seal 3 to be sandwiched between the mounting surfaces of the main body 1 and the housing 20, which helps to improve the sealing effect at the seal 3.

[0069] It is understood that the terminal block 10 in this application is mounted and fixed on the housing 20 by the base body 1, and the first connection terminal 21 arranged on one side of the base body 1 in the first direction needs to be electrically connected and cooperated with the electrical components inside the housing 20, so that the first connection terminal 21 can pass through the wall of the housing 20 where the terminal block 10 is installed and achieve electrical connection.

[0070] In this application, the terminal block 10 arranges the sealing element 3 on the side of the base body 1 where the first connection terminal 21 is formed, so that the base body 1 can be installed on the outside of the box 20 along the first direction towards the box 20. This allows the sealing element 3 to be sandwiched between the base body 1 and the wall of the box 20 along the first direction while the first connection terminal 21 is electrically connected to the electrical components inside the box 20. Thus, the sealing element 3 forms a seal between the base body 1 and the box 20, improving the sealing and protection effect of the electrical control box 100 at the terminal block 10.

[0071] Reference Figure 7 As shown, an installation groove 101 is formed on the main body 1, which opens to the side of the box 20. The installation groove 101 is the installation structure of the seal 3, which has a certain limiting effect on the seal 3, thereby preventing the seal 3 from falling off the main body 1 and assisting in the assembly of the seal 3.

[0072] During the assembly of the terminal block 10 onto the housing 20, the sealing element 3 can be pre-installed on the base body 1. The base body 1 then carries the sealing element 3 together with it as it is assembled onto the housing 20, with the sealing element 3 sandwiched between the base body 1 and the wall of the housing 20. Because a portion of the sealing element 3 protrudes outward from the mounting groove 101, a proper contact and fit between the sealing element 3 and the wall of the housing 20 is ensured. This allows the sealing element 3 to be deformed by compression between the base body 1 and the housing 20, improving the sealing and protective effect.

[0073] like Figure 5 As shown, in some embodiments of this application, the sealing element 3 is constructed as a sealing ring, and the mounting groove 101 is arranged in annular shape around the electrical connector 2, so that the sealing ring can form a seal on the outer circumference of the electrical connector 2, so as to prevent external contaminants (such as rainwater) from entering the arrangement area of ​​the electrical connector 2 through the gap between the seat body 1 and the box 20 and causing a short circuit, thereby improving the sealing and protection effect at the electrical connector 2.

[0074] In some embodiments of this application, the terminal block 10 is provided with a plurality of electrical connectors 2, and the plurality of electrical connectors 2 are arranged in an array at intervals on the base body 1 to meet the wiring requirements of the terminal block 10.

[0075] Reference Figure 5 As shown, the terminal block 10 has six electrical connectors 2, all of which are pins. Sealing rings surround the outer circumference of each connector 2, providing a seal. The number of electrical connectors 2 in the terminal block 10 can be designed according to wiring requirements and is not limited to this; furthermore, the electrical connectors 2 can also be specifically constructed as copper busbars, etc.

[0076] As shown in the figure Figure 5 As shown, in some embodiments of this application, the sealing ring has a first annular protrusion 31 and a second annular protrusion 32 formed on one side of the protruding mounting groove 101. The first annular protrusion 31 surrounds the second annular protrusion 32 and is arranged at intervals, so that multiple seals can be formed on the circumferential outer side of the electrical connector 2 by the sealing ring, thereby further improving the sealing and protection performance of the sealing member 3.

[0077] Further integration Figure 5 and Figure 7 The portion of the sealing ring protruding from the mounting groove 101 has a first annular protrusion 31 and a second annular protrusion 32. Both the first annular protrusion 31 and the second annular protrusion 32 protrude outwards, and the first annular protrusion 31 surrounds the second annular protrusion 32 on its circumferential outer side, so that the sealing ring forms two annular sealing structures in the portion protruding from the mounting groove 101.

[0078] It is understandable that when the main body 1 and the box 20 are installed and fitted, the first annular protrusion 31 and the second annular protrusion 32 both bulge towards one side of the wall of the box 20. The first annular protrusion 31 and the second annular protrusion 32 can form a double seal to improve the sealing fit between the sealing ring and the box 20.

[0079] Meanwhile, since the first annular protrusion 31 and the second annular protrusion 32 are both formed outside the mounting groove 101, only one mounting groove 101 arranged in annular shape is needed to meet the arrangement requirements of the sealing ring at the seat body 1, reduce the assembly difficulty of the sealing ring at the seat body 1, and achieve multiple seals from the outside of the electrical connector 2 through one sealing ring, so as to improve the sealing effect at the sealing ring.

[0080] like Figure 7 As shown, in some embodiments of this application, the sealing ring has a hollow portion 33, which is formed inside the sealing ring and extends in a ring shape along the circumferential direction of the sealing ring, so that the sealing ring has a hollow structure arranged in a ring.

[0081] Understandably, the hollow portion 33 helps to increase the deformation of the sealing ring. When the part of the sealing ring protruding from the mounting groove 101 (such as the first annular protrusion 31 and the second annular protrusion 32) is squeezed, it can deform towards the hollow portion 33 of the sealing ring, reducing the difficulty of deformation of the sealing ring and making it easier to fit the sealing ring to the wall of the box 20 to further improve the sealing effect at the sealing ring.

[0082] Reference Figure 7 As shown, in a further embodiment of this application, the cross-section of the hollow portion 33 is circular, and the center of the circle is located between the first annular protrusion 31 and the second annular protrusion 32, so as to enhance the compression deformation effect of the first annular protrusion 31 and the second annular protrusion 32 towards the hollow portion 33 when they are squeezed.

[0083] like Figure 6 As shown, in some embodiments of this application, the base body 1 includes a plug-in base 11 and a connecting base 12.

[0084] Combination Figure 5 and Figure 6 As shown, the plug-in base 11 is used to install the electrical connector 2 and has two plug-in slots 113 that are open to both sides in the first direction. The two ends of the electrical connector 2 form a first connection terminal 21 and a second connection terminal 22 in the two plug-in slots 113 respectively. The connector 12 is connected around the outer side of the plug-in base 11 and is used to connect and fix with the housing 20 to realize the assembly of the base body 1 and the housing 20.

[0085] It is understood that the socket 11 serves as the mounting carrier for the electrical connector 2. The socket 11 can drive the electrical connector 2 to move synchronously, thereby connecting the electrical connector 2 to the electrical components inside the housing 20. Taking the electrical connector 2 as a pin as an example, the pin is arranged through the socket 11 along a first direction, and the two ends of the pin through the socket 11 along the first direction form a first connecting terminal 21 and a second connecting terminal 22, respectively. When connecting to the electrical components inside the housing 20 through the first connecting terminal 21, the socket 11 can drive the first connecting terminal 21 to be inserted into the housing 20 from the outside to the inside along the first direction, thereby connecting the first connecting terminal 21 to the electrical components. The electrical components can have slots or sockets that match the first connecting terminal 21.

[0086] Further reference Figure 6 As shown, the connecting seat 12 is connected to the outer circumferential side of the plug-in seat 11, thereby connecting and fixing it to the housing 20 via the connecting seat 12 on the outer circumferential side of the plug-in seat 11. It is understood that a connecting structure is formed on the connecting seat 12, and the connecting structure is arranged in the area on the outer circumferential side of the plug-in seat 11 within the connecting seat 12, thereby avoiding interference between the connecting structure and the plug-in seat 11, which would affect the sealing effect of the sealing element 3.

[0087] In some embodiments of this application, guide and limiting portions 114 are respectively provided on both sides of the plug-in 11 in the first direction.

[0088] Reference Figure 7 As shown, the guide limiting part 114 located on the side of the plug-in 11 where the first connecting terminal 21 is formed can guide the plug-in 11 when it is plugged into the plug-in structure on the housing 20, and after the plug-in 11 is inserted into the housing 20, it engages with the plug-in structure on the housing 20 to limit its movement, thereby preventing the plug-in 11 from coming off the housing 20. Similarly, the guide limiting part 114 located on the side of the plug-in 11 where the second connecting terminal 22 is formed can guide the plug-in 11 when it is plugged into the plug-in structure on the external wiring harness, and after the external wiring harness is inserted into the wiring terminal 10, it engages with the plug-in structure on the external wiring harness to limit its movement, thereby preventing the external wiring harness from coming off the wiring terminal 10. This improves the reliability of the connection between the wiring terminal 10 and the housing 20 and the external wiring harness.

[0089] In a specific embodiment of this application, the guide limiting part 114 can be specifically constructed as a hook. The end of the hook has a guide structure (such as a guide slope) to assist in assembly. The hook can be snapped and fixed after the external wiring harness or box 20 is installed in place relative to the seat body 1, thereby improving the connection reliability between the wiring terminal 10 and the external wiring harness or box 20.

[0090] like Figure 6 and Figure 7As shown, in some embodiments of this application, the outer peripheral wall of the connector 12 is provided with a first annular flange 121 and a second annular flange 122 protruding outward. The first annular flange 121 and the second annular flange 122 are arranged at intervals along a first direction, and the first annular flange 121 and the second annular flange 122 define a drainage groove 102 arranged circumferentially around the connector 12. The drainage groove 102 can drain water outward to avoid water stagnation at the terminal 10 and short circuits, which helps to improve the protection effect at the terminal.

[0091] Combination Figure 6 and Figure 7 As shown, the first annular flange 121 and the second annular flange 122 are disposed on the peripheral wall of the connector 12, and the peripheral wall of the connector 12 is arranged around the outer periphery of the plug-in seat 11 in the circumferential direction. The peripheral wall can improve the structural strength of the connector 12 in the circumferential direction and improve the deformation resistance of the connector 12. At the same time, the first annular flange 121 and the second annular flange 122 are respectively disposed at both ends of the peripheral wall in the first direction, so that water can be isolated and confined in the drainage groove 102 by the first annular flange 121 and the second annular flange 122, preventing water from flowing to the plug-in seat 11 where the electrical connector 2 is disposed, thereby improving the protection effect on the electrical connector 2.

[0092] Combination Figure 6 and Figure 7 As shown, in a further embodiment of this application, the protrusion dimension of the first annular flange 121 on the outer peripheral wall of the connector 12 is smaller than the protrusion dimension of the second annular flange 122. Meanwhile, the terminal block 10 also includes a cover 4, which covers the connector 12, and the open end of the cover 4 abuts against the second annular flange 122 to achieve a positioning fit between the cover 4 and the connector 12.

[0093] It is understandable that the cover 4 is placed on the connector 12, so that the electrical connector 2 in the terminal block 10 can be shielded by the cover 4 to prevent the connection between the second connector 22 and the external wiring harness from being exposed. This can prevent rainwater and other pollutants from contaminating the second connector 22 and causing short circuits or other faults at the terminal block 10, thereby improving the protection effect of the terminal block 10 at the second connector 22.

[0094] Reference Figure 7As shown, the cover 4 is configured to extend from the side of the connector 12 with the first annular flange 121 to the side with the second annular flange 122. In other words, the cover 4 is fastened to the side of the terminal block 10 with the second connecting terminal 22. Thus, the terminal block 10 in this application is constructed such that the protrusion size of the second annular flange 122 is larger than the protrusion size of the first annular flange 121, so that the first annular flange 121 can provide some clearance to the open end of the cover 4, facilitating the fit between the cover 4 and the connector 12. Furthermore, a portion of the second annular flange 122 is arranged in a first direction corresponding to the open end of the cover 4 to achieve the abutment and positioning of the cover 4 and the connector 12.

[0095] like Figure 7 As shown, in some embodiments of this application, the cover 4 has a stepped portion 43 at the open end. The stepped portion 43 is recessed from the inner peripheral wall of the cover 4 outward (i.e., the side of the cover 4 away from the connecting seat 12), and the stepped portion 43 extends in an annular shape at the open end of the cover 4 to correspond to the second annular flange 122, thereby improving the positioning and fitting effect between the stepped portion 43 and the second annular flange 122.

[0096] Reference Figure 7 As shown, since the step portion 43 is formed on the inner peripheral wall of the cover body 4, when the cover body 4 and the connecting seat 12 are fitted together, the cover body 4 can cover the outer circumferential side of the second annular flange 122, thereby fully covering the seat body 1 through the cover body 4, improving the covering and protection effect of the cover body 4 on the seat body 1.

[0097] Reference Figure 7 When the terminal block 10 is installed and mated with the housing 20, the base body 1 (e.g., the second annular flange 122) and the sealing element 3 in the terminal block 10 are adapted to abut against the wall surface of the housing 20. Preferably, the open end of the cover 4 is flush with the surface of the second annular flange 122 facing away from the first annular flange 121, thereby increasing the contact area between the terminal block 10 and the housing 20 when they are installed and mated, and improving the connection effect between the terminal block 10 and the housing 20.

[0098] like Figure 6 and Figure 7 As shown, in some embodiments of this application, the cover 4 includes: a cover body 41 and a wire outlet 42. The cover body 41 is covered and connected to the connector 12 so as to cover the connector 12 through the cover body 41. The wire outlet 42 is connected to one circumferential side of the cover body 41 and is used for external wiring harnesses to pass through the cover body 41.

[0099] Understandably, the external wiring harness is used for electrical connection with the second connecting terminal 22. That is, the connection point between the external wiring harness and the second connecting terminal 22 is suitable to be concealed by the cover body 41, and the wiring structure of the external wiring harness needs to pass through the cover body 41. The exit portion 42 can meet the routing requirements of the external wiring harness leading from the second connecting terminal 22 to the outside of the cover body 41. Simultaneously, since the exit portion 42 is located circumferentially on the cover body 41, the electrical connection point between the second connecting terminal 22 and the external wiring harness can be prevented from being exposed, ensuring the concealment effect of the cover body 41 on the connecting seat 12.

[0100] like Figure 7 As shown, in some embodiments of this application, the cover body 41 is provided with a drain hole 401 near the second annular flange 122, so that water guided by the second annular flange 122 can be drained to the drain hole 401 to realize drainage at the terminal 10 and improve the protection effect at the terminal 10.

[0101] In a further embodiment of this application, the drain hole 401 is disposed through the peripheral wall of the cover body 41, and at least a portion of the drain hole 401 is disposed opposite to the drain groove 102 in the direction of the inner and outer sides of the peripheral wall of the cover body 41.

[0102] It is understood that the drainage groove 102 is formed by the first annular flange 121 and the second annular flange 122. When the drainage hole 401 is arranged opposite to the drainage groove 102, the water in the drainage groove 102 (i.e. the water inside the cover body 41) can be discharged outward through the drainage hole 401.

[0103] The cover body 41 covers the outer periphery of the connecting seat 12. A drainage hole 401 is formed on the peripheral wall of the cover body 41 and is arranged through the wall thickness direction. The drainage hole 401 can be connected to the drainage groove 102, so that the water in the drainage groove 102 can be discharged outward through the drainage hole 401, which facilitates the discharge of water from the seat body 1 and improves the drainage effect at the connecting terminal.

[0104] like Figure 6 As shown, in some embodiments of this application, the drainage trough 102 includes a guide section and a confluence section 1025. The guide section is used to guide water to the drain hole 401 side. The two ends of the confluence section 1025 are respectively connected to the two ends of the guide section. Moreover, the confluence section 1025 can collect water and guide it to the drain hole 401, so that the water in the drainage trough 102 can flow to the drain hole 401 and be discharged outward through the drain hole 401.

[0105] Reference Figure 2 , Figure 2The terminal block 10 shown is mounted on the housing 20, and the terminal block 10 is disposed on a vertically oriented wall surface of the housing 20, and further combined with... Figure 7 As can be seen, after the terminal block 10 is arranged on the housing 20, the drain hole 401 is located in the lower area of ​​the cover body 41. Therefore, when there is water in the drain trough 102, the water can flow downward under the action of gravity, and the drain trough 102 can guide the flow of water to converge the water in the drain trough 102 to the drain hole 401, so that the water in the drain trough 102 can be discharged through the drain hole 401.

[0106] like Figure 6 As shown, in a further embodiment of this application, the flow guiding section includes: a first flow guiding section 1021, a second flow guiding section 1022, a third flow guiding section 1023, and a fourth flow guiding section 1024.

[0107] Wherein, one end of the first guide section 1021 is connected to one end of the second guide section 1022, and the first guide section 1021 extends at an angle relative to the second guide section 1022. The included angle formed between the first guide section 1021 and the second guide section 1022 opens toward the drain hole 401. The third guide section 1023 is connected between the other end of the first guide section 1021 and one end of the confluence section 1025 and is used to guide water to the confluence section 1025. The fourth guide section 1024 is connected between the other end of the second guide section 1022 and the other end of the confluence section 1025 and is used to guide water to the confluence section 1025.

[0108] Furthermore, the confluence section 1025 is arranged in a V shape, and the apex of the V-shape of the confluence section 1025 is located near the drain hole 401, so that the confluence section 1025 can collect water to the drain hole 401, so that the water in the confluence section 1025 can be discharged outward through the drain hole 401.

[0109] Reference Figure 6 As shown, the connector 12 is roughly hexagonal in shape, and the connection points of the first guide section 1021 and the second guide section 1022, the connection points of the first guide section 1021 and the third guide section 1023, the connection points of the second guide section 1022 and the fourth guide section 1024, the connection points of the third guide section 1023 and the confluence section 1025, the connection points of the fourth guide section 1024 and the confluence section 1025, and the V-shaped vertex of the confluence section 1025 are the six vertices of the hexagon.

[0110] Preferably, after the terminal block 10 is installed and fitted with the housing 20, the connection between the first guide section 1021 and the second guide section 1022 is located at the top, and the first guide section 1021 and the second guide section 1022 are inclined relative to the vertical direction, so that the water in the first guide section 1021 or the second guide section 1022 is difficult to stagnate, and is guided by the first guide section 1021 and the second guide section 1022 to the third guide section 1023 and the fourth guide section 1024 respectively, and further guided by the vertically extending third guide section 1023 or the fourth guide section 1024 to the confluence section 1025. The confluence section 1025 can guide the water to the drain hole 401 to realize the drainage function of the terminal block 10.

[0111] In some embodiments of this application, the drain hole 401 and the cable outlet 42 are located on the same side of the cover body 41. Figure 2 and Figure 7 As shown, after the terminal block 10 is installed and fitted with the housing 20, the drain hole 401 and the wire outlet 42 are both located in the lower area of ​​the terminal block 10. This prevents the drain hole 401 and the wire outlet 421 of the wire outlet 42 from opening in other directions (such as the top or the horizontal side). This reduces the risk of rainwater and other pollutants entering the housing 4 through the drain hole 401 or the wire outlet 421, and improves the protection effect at the terminal block 10.

[0112] In some embodiments of this application, the end of the cable outlet 42 away from the cover body 41 is formed with a cable outlet 421, and the cable outlet 42 is provided with a snap-fit ​​part (not shown) at the cable outlet 421. A wire-clamping groove is defined between the snap-fit ​​part and the end of the cable outlet 42. The wire-clamping groove is used to snap-fit ​​with the external wiring harness to constrain the routing direction of the external wiring harness and to assist the routing of the external wiring harness.

[0113] In a further embodiment of this application, the snap-fit ​​portion includes a first limiting rib and a second limiting rib. The first limiting rib extends from the end of the wire outlet portion 42 toward the side away from the cover body 41, such that the extension direction of the first limiting rib is the same as the wire outlet direction of the wire outlet portion 42. The second limiting rib is connected to the other end of the first limiting rib and is set perpendicular to the first limiting rib, so that the first limiting rib and the second limiting rib define a wire-locking groove at the end of the wire outlet portion 42. The external wiring harness can be led out from the wire outlet 421 and locked in the wire-locking groove, so as to constrain the routing of the external wiring harness through the wire-locking groove.

[0114] Understandably, the external wiring harness can be selectively placed in the cable tray according to the wiring requirements. For example, when it is necessary to guide the outgoing direction of the external wiring harness to the side, the external wiring harness passing through the outlet 421 can be arranged downwards.

[0115] It should be noted that a groove structure 412 is provided on the outer peripheral wall of the cable outlet 42. The groove structure 412 can be used for cable ties and other wire harnesses to pass through, so as to constrain the external wire harnesses led out from the cable outlet 42 through the cable ties. The cable ties can be inserted and cooperate with the groove structure 412 to constrain and guide the routing direction of the external wire harnesses.

[0116] like Figure 6 As shown, in some embodiments of this application, the connecting seat 12 is provided with a buckle 125 at the second annular flange 122, and a groove 411 is formed on the outer wall surface of the cover body 41. The buckle 125 engages with the groove 411 to engage and fix the cover body 41 and the connecting seat 12, thereby realizing the assembly of the cover body 41 and the connecting seat 12. The assembly method is simple and the connection reliability is high.

[0117] Combination Figure 5 and Figure 6 As shown, the connecting seat 12 is provided with a first connecting arm 123 and a second connecting arm 124. The first connecting arm 123 is connected to the outer peripheral wall of the second annular flange 122 and extends outward. The second connecting arm 124 is connected to the first connecting arm 123 and extends towards the cover body 41 so that part of the second connecting arm 124 corresponds to the side wall of the cover body 41. The buckle 125 is formed at the end of the second connecting arm 124.

[0118] The slot 411 is formed on the side wall of the cover body 41, so that when the cover body 41 and the connecting seat 12 are fitted together, the buckle 125 can be inserted into the slot 411 to secure the cover body 41 and the connecting seat 12. Therefore, the angle between the installation direction of the cover body 41 onto the connecting seat 12 and the second connecting arm 124 is small, allowing the buckle 125 to be engaged in the slot 411 while the cover body 41 is on the connecting seat 12, reducing the assembly difficulty of the cover body 41 and the connecting seat 12.

[0119] It is understandable that the first connecting arm 123 and the second connecting arm 124 are arranged in an L-shape, so that an area suitable for avoiding the cover body 41 can be formed at the first connecting arm 123, so as to prevent interference between the second connecting arm 124 extending to the cover body 41 and the cover body 41. Furthermore, the buckle 125 can be arranged at the side of the cover body 41 through the second connecting arm 124, so as to facilitate the engagement of the buckle 125 with the slot 411.

[0120] Reference Figure 6 As shown, a clearance notch 402 is formed on the cover body 41. The clearance notch 402 is used to avoid the first connecting arm 123 to prevent interference between the cover body 41 and the first connecting arm 123. This satisfies the arrangement requirement of extending the first connecting arm 123 outward from the second annular flange 122.

[0121] like Figure 7 As shown, in some embodiments of this application, the connector 12 is provided with a mounting hole 103, which is configured to allow the connector 30 to pass through, so as to connect and fix the connector 12 to the box 20 through the connection structure of the connector 30 and the box 20.

[0122] The aforementioned "connector 30" can be constructed as a bolt, and the connecting structure on one side of the housing 20 can be constructed as a nut or a threaded hole. Thus, during the assembly process of the terminal block 10 and the housing 20, the bolt can be inserted into the mounting hole 103 from the side of the terminal block 10 where the second connecting terminal 22 is formed, and threadedly engaged with the connecting structure on one side of the housing 20, thereby connecting and fixing the connector 12 to the housing 20.

[0123] like Figure 6 As shown, the connector 12 has two mounting holes 103, which are respectively arranged on the two outer sides of the connector 11. Each mounting hole 103 is provided with a connector 30, so that the connector 30 can be fastened to the box 20 by the two connectors 30, thereby realizing the installation and fixation of the connector body 1 and the box 20. The connection reliability between the connector 12 and the box 20 is improved by setting multiple mounting points on the connector 12.

[0124] It is understandable that the mounting structure on the connector 12 is a mounting hole 103, and the mounting hole 103 is used for the connector 30 to pass through and be connected and fixed to the housing 20. If only one set of mounting holes 103 and connector 30 is provided, the connector 12 will rotate around the connector 30, which cannot effectively guarantee the fixing effect of the connector 12 on the housing 20. In this application, two sets of mounting holes 103 and connector 30 are provided on the connector 12, which can effectively avoid the problem of the connector 12 shaking.

[0125] Combination Figure 7 and Figure 10 As shown, in some embodiments of this application, the connecting seat 12 is provided with a reinforcing rib 126. The reinforcing rib 126 is provided on the side of the connecting seat 12 away from the box body 20 and protrudes outward, so as to improve the local strength of the connecting seat 12 and improve the deformation resistance of the connecting seat 12.

[0126] It should be noted that, referring to Figure 7 As shown, the multiple reinforcing ribs 126 on the connector 12 extend to the mounting hole 103 to improve the structural strength at the mounting hole 103; see reference. Figure 10As shown, the multiple reinforcing ribs 126 in the connector are arranged in positions suitable for avoiding the mounting holes 103. The extension direction of the reinforcing ribs 126 on the connector 12 can be adaptively adjusted according to the setting position of the mounting holes 103, and is not limited thereto.

[0127] Furthermore, the reinforcing rib 126 can be configured to extend from the inner wall surface of the peripheral wall of the connector 12 to the outer wall surface of the insertion seat 11, thereby improving the strength of the connection between the insertion seat 11 and the connector 12. It should be noted that the specific arrangement and extension method of the reinforcing rib 126 in the connector 12 are not specifically limited here.

[0128] like Figure 10 As shown, in some embodiments of this application, the connecting seat 12 is also provided with an installation mark 127. The installation mark 127 can play an auxiliary role in the installation and cooperation of the seat body 1 and the box 20, so as to prevent the seat body 1, which is generally symmetrically arranged, from being installed backwards, and to ensure the assembly accuracy of the seat body 1 and the box 20.

[0129] Reference Figure 10 As shown, in some embodiments of this application, the installation mark 127 can be constructed as an "arrow shape" to guide the operator to install the auxiliary seat body 1 with the arrow pointing upwards. The installation mark 127 can be disposed on the first annular flange 121.

[0130] Reference Figure 10 As shown, in some embodiments of this application, the installation mark 127 can also be constructed as a "letter", such as "L", "R", etc., to prompt the operator to assemble the auxiliary seat body 1 by using the installation mark 127 constructed as a letter. The installation mark 127 can also be provided on the plate structure on the outer periphery of the connector 12 connected to the plug-in seat 11.

[0131] It should be noted that multiple installation marks 127 can be provided on the main body 1, and the multiple installation marks 127 can be constructed in different styles to assist in the assembly of the main body 1, thereby improving the assembly efficiency of the main body 1.

[0132] In some embodiments of this application, the base body 1 and the electrical connector 2 are integrally injection molded, thereby fixing the electrical connector 2 to the base body 1 without the need for separate assembly of the electrical connector 2, saving the assembly process of the terminal block 10 and helping to improve the production efficiency of the terminal block 10. At the same time, the base body 1 is an injection molded part (including but not limited to: polyethylene, polypropylene, polystyrene, etc.) so that the base body 1 has good insulation performance and structural strength, can achieve insulation protection at the electrical connector 2, and can ensure the fixing effect of the electrical connector 2 at the housing 20. Moreover, the molding difficulty of the base body 1 is low, which can meet the processing requirements of the complex structure of the base body 1.

[0133] Reference Figures 1-7 The assembly process of the terminal block 10 and the housing 20 according to an embodiment of this application is described below:

[0134] First, the electrical connector 2 is integrally injection molded with the seat body 1, and the sealing element 3 is installed in the mounting groove 101.

[0135] Furthermore, the side of the base body 1 with the first connecting terminal 21 and the sealing member 3 is positioned facing the wall of the housing 20, so that the mounting position of the base body 1 corresponds to that of the housing 20. At this time, part of the plug-in socket 11 and the first connecting terminal 21 are inserted into the housing 20 to connect the first connecting terminal 21 with the electrical components inside the housing 20, and the sealing member 3 is pressed between the base body 1 and the housing 20 to form a multiple seal on the circumferential outer side of the electrical connector 2 through the sealing member 3. The mounting hole 103 on the base body 1 is also arranged corresponding to the connection structure on one side of the housing 20.

[0136] Next, the connector 30 is inserted through the mounting hole 103 into the main body 1, and the connector 30 is connected and fixed to the connecting structure on one side of the housing 20. This further clamps the sealing element 3 while fixing the main body 1 to the housing 20, ensuring the sealing effect at the sealing element 3. At this time, the positions of the main body 1 and the electrical connector 2 relative to the housing 20 are fixed, and the second connecting terminal 22 is exposed.

[0137] Furthermore, the external wiring harness is passed through the cover body 4 so that the wiring terminals of the external wiring harness can be exposed from the port of the cover body 41, and the wiring harness portion of the external wiring harness can be led out from the outlet 421 of the outlet part 42. The wiring terminals of the external wiring harness are inserted and matched with the second connection terminal 22 to realize the electrical connection between the electrical connector 2 and the external wiring harness.

[0138] Finally, the cover 4 is placed on the connector 12, and the buckle 125 on the connector 12 engages with the slot 411 on the cover 4 to connect and fix the cover 4 to the main body 1, completing the assembly of the terminal 10. At this time, the port of the cover 41 abuts against the second annular flange 122, and the cover 41 covers the outside of the connector 12 in the circumferential direction to shield the electrical connection area between the main body 1, the electrical connector 2, and the terminal, thereby improving the protection effect at the terminal 10. Moreover, the drain hole 401 on the cover 41 is connected to the drain groove 102 on the connector 12, so that water in the cover 4 can be guided through the drain groove 102 to the drain hole 401 and discharged from the drain hole 401.

[0139] At the same time, the external wiring harness can be selectively constrained by the wire clamping groove according to the wiring requirements of the external wiring harness exiting at 4 points on the cover.

[0140] The terminal block 10 according to the embodiments of this application has at least the following advantages over the prior art:

[0141] (1) An electrical connection structure is formed on the outside of the electrical control box 100 through the wiring terminal 10, and there is good sealing between the wiring terminal 10 and the wall of the box 20. The wiring and sealing requirements can be met at the wiring terminal 10 at the same time.

[0142] (2) A sealing element 3 is provided between the main body 1 and the box 20, and multiple annular protrusions are formed on the side of the sealing element 3 that abuts against the box 20, so as to form multiple seals on the circumferential outer side of the electrical connector 2, thereby further improving the sealing and protection effect of the sealing element 3.

[0143] (3) The terminal 10 is covered with a cover 4 on the main body 1. The cover 4 can shield and protect the second connection terminal 22, further improving the protection effect of the terminal 10. The cover 4 and the main body 1 can be fixed by plugging and connecting. The installation method is simple and reliable. The cover 4 can cover the outer periphery of the connection seat 12, so that the wall seat body 1 and the electrical connector 2 are exposed.

[0144] (4) A drainage groove 102 is formed in the circumferential direction of the main body 1, and a drainage hole 401 communicating with the drainage groove 102 is formed on the cover 4. The drainage groove 102 can guide water to the drainage hole 401 and discharge it outward from the drainage hole 401 to improve the waterproof performance of the terminal 10.

[0145] (5) The main body 1 and the electrical connector 2 are integrally injection molded, so that the electrical connector 2 can be fixed on the main body 1. There is no need to assemble the electrical connector 2 separately, saving the assembly process of the terminal block 10 and helping to improve the production efficiency of the terminal block 10.

[0146] According to the second aspect embodiment of the present application, the electrical control box 100 includes the above-mentioned wiring terminal 10. The wiring terminal 10 can be electrically connected to the electrical components inside the electrical control box 100 and form a wiring structure on the outside of the electrical control box 100 to meet the wiring requirements of the electrical control box 100 being electrically connected to the external wiring harness.

[0147] The advantages of the electrical control box 100 over the prior art are the same as those of the wiring terminal 10 mentioned above, and will not be repeated here.

[0148] In some embodiments of this application, the electrical control box 100 further includes a box body 20. The side wall of the box body 20 is provided with an installation port 201. The installation port 201 can be plugged into and engaged with the wiring terminal 10. The sealing member 3 can abut against the side wall of the box body 20 to form a seal between the box body 20 and the base body 1, thereby achieving a seal at the mating point between the wiring terminal 10 and the box body 20.

[0149] It is understood that an electrical component is provided inside the housing 20 to be plugged into the terminal block 10, and the electrical component is located at the mounting port 201 and is adapted to achieve electrical connection with the terminal block 10 when the terminal block is plugged into the mounting port 201.

[0150] like Figure 9 As shown, in a further embodiment of this application, an annular boss 202 is formed on the side wall of the box body 20. The annular boss 202 is arranged around the mounting opening 201, and the sealing member 3 is adapted to be clamped between the annular boss 202 and the seat body 1.

[0151] The annular boss 202 is arranged around the mounting port 201 to enhance the structural strength of the box 20 at the mounting port 201, thereby ensuring the reliability of the insertion and removal of the terminal block 10 and the box 20 at the mounting port 201.

[0152] According to the third aspect of the present application, the HVAC equipment 1000 includes a fan and the aforementioned electrical control box 100. The wiring terminals in the electrical control box 100 are configured as fan wiring harness terminals for the fan. The electrical connector 2 is electrically connected to the fan to realize the electrical connection and cooperation between the electrical control box 100 and the fan.

[0153] The electrical control box 100 can be arranged inside the housing 200 of the HVAC equipment 1000, and the electrical control box 100 is set vertically. The mounting port 201 is formed on the side of the electrical control box 100 to prevent contaminants (such as dust, rainwater, etc.) outside the housing 200 from entering the housing 200 of the electrical control box 100 through the mounting port 201. Furthermore, the sealing and protection effect of the electrical control box 100 at the mounting port 201 of the housing 20 can be further improved by the sealing structure between the wiring terminal 10 and the housing 20, so as to meet the usage requirements in harsh environments (such as rainy weather).

[0154] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0155] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0156] In the description of this application, "multiple" means two or more.

[0157] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0158] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0159] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0160] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A terminal block, characterized in that, The wiring terminal is installed in the electrical control box, and the wiring terminal includes: The base body is used to be fixedly connected to the box body of the electrical control box; An electrical connector is provided, which passes through the base body along a first direction and forms a first connection terminal and a second connection terminal on both sides of the base body along the first direction, respectively. The first connection terminal is used to electrically connect with electrical components inside the electrical control box, and the second connection terminal is used to electrically connect with an external wiring harness. A sealing element is disposed on the side of the seat body where the first connecting terminal is formed, and is used to form a seal between the seat body and the housing.

2. The terminal block according to claim 1, characterized in that, The main body of the base has a mounting groove on the side where the first connecting terminal is formed. The sealing element is disposed in the mounting groove, and part of the sealing element protrudes from the mounting groove to one side of the housing.

3. The terminal block according to claim 2, characterized in that, The sealing element is constructed as a sealing ring, and the mounting groove is arranged in a ring around the electrical connector.

4. The terminal block according to claim 3, characterized in that, The sealing ring has a first annular protrusion and a second annular protrusion on the side protruding from the mounting groove, with the first annular protrusion surrounding the second annular protrusion and spaced apart.

5. The terminal block according to claim 3 or 4, characterized in that, The sealing ring has a hollow portion formed inside the sealing ring and extends in a ring shape along the circumferential direction of the sealing ring.

6. The terminal block according to claim 1, characterized in that, The main body of the seat includes: A connector for mounting the electrical connector and having two sockets that open to both sides in the first direction, wherein the two ends of the electrical connector form a first connection terminal and a second connection terminal in the two sockets respectively; A connector is provided, which is circumferentially connected to the plug-in socket and used to connect and fix it to the housing.

7. The terminal block according to claim 6, characterized in that, The outer peripheral wall of the connector is provided with a first annular flange and a second annular flange that protrude outwards. The first annular flange and the second annular flange are arranged at intervals along the first direction and define a drainage groove that is arranged circumferentially around the connector.

8. The terminal block according to claim 7, characterized in that, On the outer peripheral wall of the connector, the protrusion dimension of the first annular flange is smaller than that of the second annular flange. The terminal also includes a cover, which covers the connector and the open end of the cover abuts against the second annular flange.

9. The terminal block according to claim 8, characterized in that, The cover includes: A cover body, which is fitted and connected to the connecting seat; The cable outlet is connected to one circumferential side of the cover body and is used for the external wiring harness to pass through the cover body.

10. The terminal block according to claim 9, characterized in that, The cover body is provided with a drainage hole adjacent to the second annular flange.

11. The terminal block according to claim 10, characterized in that, The drainage hole is provided through the peripheral wall of the cover body, and at least a portion of the drainage hole is provided opposite to the drainage groove in the direction of the inner and outer sides of the peripheral wall of the cover body.

12. The terminal block according to claim 10, characterized in that, The drainage channel includes: A guide section, which is used to guide water to one side of the drain hole; The confluence section is connected at both ends to the two ends of the guide section and is used to collect water and guide it to the drain hole.

13. The terminal block according to claim 12, characterized in that, The guide section includes: A first guide section and a second guide section, one end of the first guide section and one end of the second guide section are connected, and the first guide section extends at an angle relative to the second guide section, and the included angle formed between the first guide section and the second guide section opens toward the drain hole. A third diversion section is connected between the other end of the first diversion section and one end of the confluence section, and is used to guide water to the confluence section; A fourth diversion section is connected between the other end of the second diversion section and the other end of the confluence section, and is used to guide water to the confluence section.

14. The terminal block according to claim 10, characterized in that, The drainage hole and the cable outlet are located on the same side of the cover body.

15. The terminal block according to claim 9, characterized in that, The end of the cable outlet away from the cover body has a cable outlet, and the cable outlet has a snap-fit ​​part at the cable outlet. A cable clamping groove is defined between the snap-fit ​​part and the end of the cable outlet, and the cable clamping groove is used to snap-fit ​​with the external wiring harness.

16. The terminal block according to claim 9, characterized in that, The connecting seat has a buckle at the second annular flange, and the outer wall surface of the cover body has a groove, and the buckle engages with the groove.

17. The terminal block according to claim 6, characterized in that, The connector is provided with a mounting hole, which is configured to allow the connector to pass through, so as to connect and fix the connector to the box body by means of the connector cooperating with the connection structure on one side of the box body.

18. The terminal block according to claim 1, characterized in that, The main body of the seat and the electrical connector are integrally injection molded.

19. An electrical control box, characterized in that, Includes the terminal block according to any one of claims 1-17.

20. The electrical control box according to claim 19, characterized in that, The electrical control box includes a box body, and the side wall of the box body is provided with an installation port. The installation port can be plugged into and cooperate with the wiring terminal, and the sealing element is adapted to abut against the side wall of the box body to form a seal between the box body and the base body.

21. The electrical control box according to claim 20, characterized in that, The side wall of the box body is formed with an annular boss, which surrounds the mounting opening, and the sealing element is adapted to be clamped between the annular boss and the seat body.

22. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, The HVAC equipment includes a fan and an electrical control box according to any one of 19-21, wherein the terminal block is configured as the fan wiring harness terminal of the fan, and the electrical connector is electrically connected to the fan.

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