WO2023240964A1 - Élément de fixation de carte de circuit, ensemble boîtier électrique et appareil électrique - Google Patents

Élément de fixation de carte de circuit, ensemble boîtier électrique et appareil électrique Download PDF

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Publication number
WO2023240964A1
WO2023240964A1 PCT/CN2022/139464 CN2022139464W WO2023240964A1 WO 2023240964 A1 WO2023240964 A1 WO 2023240964A1 CN 2022139464 W CN2022139464 W CN 2022139464W WO 2023240964 A1 WO2023240964 A1 WO 2023240964A1
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WO
WIPO (PCT)
Prior art keywords
wire
circuit board
electrical
box
fixing member
Prior art date
Application number
PCT/CN2022/139464
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English (en)
Chinese (zh)
Inventor
陈博强
卢冠宏
陈家荣
王泽威
陈莹德
Original Assignee
珠海格力电器股份有限公司
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Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2023240964A1 publication Critical patent/WO2023240964A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present application relates to the technical field of electrical equipment, and in particular to a circuit board fixture, an electrical box assembly and electrical equipment.
  • Circuit boards are an important part of electrical equipment such as air conditioners. They are usually installed in the electrical boxes of electrical equipment and supported by circuit board fixings. Many of the cables required for the operation of electrical equipment, such as the strong wires inside the electrical equipment such as electric heating wires and water pump wires, as well as external cables such as external power cords and communication wiring, all need to be connected to the circuit board.
  • brackets are usually provided on other parts of the electrical equipment outside the electrical box, and wire ties or clamps are used on the brackets to fix the strong wires and external cables required for the operation of the electrical equipment, which is not only zero
  • wire ties or clamps are used on the brackets to fix the strong wires and external cables required for the operation of the electrical equipment, which is not only zero
  • the assembly is complicated, and the solid wiring is poor, all of which affect the performance of electrical equipment.
  • the present application aims to provide a circuit board fixture, an electrical box assembly and an electrical device to improve the performance of the electrical device.
  • the circuit board fixture provided by this application includes:
  • the body including the base plate, is used to support the circuit board of the electrical equipment.
  • the solid wire structure is installed on the body and includes:
  • the first wire fixing part includes a wire fixing part and a wire passing part.
  • the wire fixing part is used to fix the strong wires.
  • the wire passing part is for the strong wires to pass through before reaching the wire fixing part.
  • the strong wires include electric heating wires and water pumps of electrical equipment. at least one of the lines; and/or,
  • the second wire fixing component is used to fix the external cable extending from the outside of the electrical equipment to the electrical box of the electrical equipment and connected to the circuit board.
  • the line passing portion includes a line passing hook
  • the line passing hook includes a first thread catching portion and a second thread catching portion.
  • the second thread catching portion is connected to the body through the first thread catching portion and is relative to The first wire clamping part is bent, and a space for the strong wire to be clamped is formed between the first wire clamping part and the second wire clamping part.
  • the wire passing portion includes two wire passing hooks, and the second wire catching portions of the two wire passing hooks are opposite to each other.
  • the distance between the second wire clamping parts of the two wire passing hooks becomes smaller.
  • the wire passing portion includes a boss, and the wire passing hook is connected to the body through the boss.
  • the wire passing portion is disposed on a surface of the base plate facing away from the circuit board; and/or the wire fixing portion includes a wire fixing groove.
  • the second wire-fixing component includes a wire-clamping portion, and the wire-clamping portion is used to cooperate with the wire-clamping clip to clamp the external cable between the wire-clamping portion and the wire-clamping clip.
  • the wire clamping portion includes a wire clamping bar.
  • the body further includes a coaming plate and an extension part.
  • the coaming plate is connected around the bottom plate and protrudes from the bottom plate toward the side where the circuit board is located.
  • the extension part is connected to the bottom plate and is located outside the coaming plate.
  • the wire part and/or the second wire fixing part are provided on the extension part.
  • the body is provided with a mounting piece, and the mounting piece is used to install a temperature sensing package of an electrical device; and/or the body is provided with a threading portion through which the motor wire of the power supply device passes.
  • the mounting component includes a mounting box for accommodating the temperature sensing package; and/or the mounting component is mounted on a surface of the base plate away from the circuit board.
  • the mounting box is configured to be at least one of the following:
  • the inner wall of the installation box is provided with a convex part, and the convex part is used to contact the temperature sensing package.
  • the body is provided with at least one of the following:
  • Support ribs used to support circuit boards
  • Support columns used to support circuit boards
  • the limit hook is used to connect with the circuit board.
  • support pillars and/or support ribs are provided on the bottom plate; and/or the body includes a coaming plate, which is connected around the bottom plate and protrudes from the bottom plate toward the side where the circuit board is located to limit the position.
  • the hook is arranged on the hoarding.
  • the body includes a surrounding plate, which is connected around the base plate and protrudes from the base plate toward the side where the circuit board is located, and the support ribs are connected to both the base plate and the surrounding plate.
  • the electrical appliance box assembly provided by this application includes an electrical appliance box and a circuit board, and also includes the circuit board fixing part of the embodiment of the present application.
  • the circuit board and the circuit board fixing part are both arranged in the electrical appliance box, and the circuit board is arranged in the circuit board fixing part. on the piece.
  • At least part of the boss of the wire passing portion extends to the outside of the electrical box through the opening.
  • the electrical equipment provided by this application includes the electrical box assembly of the embodiment of this application.
  • the electrical device includes an air conditioner.
  • the air conditioner includes a duct fan.
  • At least one of the first wire fixing part for fixing strong wires and the second wire fixing part for fixing external cables is provided on the circuit board fixing part, so that there is no need to install brackets and wire ties outside the electrical box. , pads, cable clamps and other components to fix the corresponding cables, which will help improve the performance of electrical equipment.
  • Figure 1 shows a perspective view of the electrical equipment in the embodiment of the present application.
  • Figure 2 shows a perspective view of the electrical equipment in the embodiment of the present application with the box cover removed.
  • Figure 3 shows a perspective view of the electrical box assembly in the embodiment of the present application.
  • Figure 4 shows an exploded view of the electrical box assembly in the embodiment of the present application.
  • FIG. 5 shows a first perspective view of the circuit board fixing member in the embodiment of the present application.
  • FIG. 6 shows a second perspective view of the circuit board fixing member in the embodiment of the present application.
  • Figures 1 to 6 exemplarily illustrate the structures of the electrical equipment, electrical box assembly and circuit board fixing member in the present application.
  • the housing 102 of the electrical equipment 100 (such as the air conditioner 104) is provided with an electrical box 1, and the electrical box 1 is provided with a circuit board 2 and a circuit board fixing member 5.
  • the circuit board 2 is disposed on the circuit board.
  • the fixing part 5 is supported by the circuit board fixing part 5 to prevent the circuit board 2 from being damaged in the electrical box 1 .
  • the circuit board fixture 5 generally includes a base plate 61 .
  • the bottom plate 61 is generally consistent with the shape of the circuit board 2 , is roughly square, and is used to support the circuit board 2 .
  • the circuit board fixing member 5 further includes a surrounding plate 62 , which is connected around the base plate 61 and protrudes from the base plate 61 toward the side where the circuit board 2 is located.
  • the circuit board 2 is located on the base plate 61 , and the enclosure 62 surrounds the circuit board 2 to limit the movement of the circuit board 2 .
  • the circuit board 2 is provided with many wiring portions (such as wiring terminals or wiring boards) to connect various cables required for the operation of the electrical equipment 100 .
  • some electrical equipment 100 are provided with electric heating wires 311 and/or water pump wires 312 . These cables are strong wires 31 inside the electrical equipment 100 and need to be connected to the circuit board 2 .
  • some electrical equipment 100 is provided with a temperature sensing package 33 , and the temperature sensing wire of the temperature sensing package 33 also needs to be connected to the circuit board 2 .
  • the motor wire 32 of the motor in the electrical device 100 also needs to be connected to the circuit board 2 .
  • the circuit board 2 in addition to being connected to various cables inside the electrical device 100 , the circuit board 2 usually also needs to be connected to cables outside the electrical device 100 .
  • the circuit board 2 is provided with a power wiring board 21 and a communication wiring board 22, respectively used to connect to external power lines (not shown in the figure) and communication wiring (not shown in the figure). shown) connection.
  • External power cords and communication wiring are not cables inside the electrical equipment, but cables outside the electrical equipment. They are usually connected to the circuit board 2 during the after-sales stage. Therefore, these types of cables are also called external cables. cable.
  • various cable ties, cable clamps and brackets are usually used to fix the cables connected to the circuit board 2.
  • the electric heating cable 311 the water pump cable 312 and external cables, they are usually in the electrical box. 1.
  • a bracket is set outside the bracket, and wire ties, pads, wire clips and other components are set on the bracket for fixation.
  • a bracket is set outside the electrical box 1, and wire ties are used on the bracket to fix the electrical appliances.
  • a bracket is set outside the electrical box 1, and a pad is set on the bracket, and the wire clamp 73 (see Figure 4) is fixed on the pad.
  • External cables are fixed. In this case, there are many parts, the structure is complex, the assembly is cumbersome, the wiring path is long, and the stability of the fixed wire is poor, which affects the performance of the electrical equipment 100 .
  • this application improves the structure of the electrical equipment 100, mainly improving the structure of the circuit board fixing member 5, so as to improve the wire-fixing structure of the electrical equipment 100 and enhance the performance of the electrical equipment 100.
  • the circuit board fixing member 5 includes a body 6 and a wire-fixing structure 7 .
  • the body 6 includes a bottom plate 61 , and the bottom plate 61 is used to support the circuit board 2 of the electrical device 100 .
  • the wire-fixing structure 7 is disposed on the body 6 and includes at least one of a first wire-fixing component 71 and a second wire-fixing component 72 .
  • the first wire fixing part 71 includes a wire fixing part 711 and a wire passing part 713.
  • the wire fixing part 711 is used to fix the strong wire 31 and the wire passing part 713 allows the strong wire 31 to pass through before reaching the wire fixing part 711.
  • the strong wire 31 includes at least one of the electric heating wire 311 and the water pump wire 312 of the electrical device 100 .
  • the second wire fixing member 72 is used to fix external cables extending from the outside of the electrical device 100 to the electrical box 1 of the electrical device 100 and connected to the circuit board 2 .
  • the fixing part 71 for fixing the strong wire 31 (electric heating wire 311 and/or the water pump wire 312) and the second wire fixing part 72 for fixing the external cable on the circuit board
  • the fixing part 5 there is no need to install brackets, cable ties, pads, cable clamps and other components outside the electrical box 1 to fix the corresponding cables, which is beneficial to improving the performance of the electrical equipment 100.
  • the wire fixing position is closer to the circuit board 2, so , is conducive to shortening the wiring path, and is conducive to improving the wire fixation effect, making the wire fixation more stable and less likely to loosen, which is conducive to improving the performance of the electrical equipment 100.
  • brackets, wire ties, pads, etc. can be omitted, the number of parts can be effectively reduced, the structure can be streamlined, and assembly can be simplified, which is also beneficial to improving the performance of the electrical device 100 .
  • the first wire fixing part 71 for fixing the strong wire 31 (electric heating wire 311 and/or water pump wire 312) not only includes the wire fixing part 711, but also includes a wire passing part 713, and the wire passing part 713 can The high-voltage wire 31 is restrained before it reaches the wire-fixing portion 711 . Therefore, the high-power wire 31 can be fixed more stably, thereby effectively improving the performance of the electrical equipment 100 .
  • the thread passing portion 713 includes a thread passing hook 714
  • the thread passing hook 714 includes a first thread catching portion 715 and a
  • the second wire clamping part 716 and the second wire clamping part 716 are connected to the body 6 through the first wire clamping part 715 and are bent relative to the first wire clamping part 715.
  • the first wire clamping part 715 and the second wire clamping part 716 A space for the strong wire 31 to be inserted is formed therebetween.
  • the provided wire crossing hook 714 can effectively restrain the strong wire 31, achieve a better wire fixing effect, and facilitate the entry and exit of the strong wire 31, which is beneficial to improving assembly efficiency.
  • the wire passing portion 713 includes two wire passing hooks 714 , and the second wire catching portions 716 of the two wire passing hooks 714 are opposite to each other. Based on this, after the strong wire 31 is stuck, it is more difficult to come out. Moreover, during the process of the strong wire 31 being stuck, the two second wire clamping parts 716 can play a certain guiding role to facilitate the strong wire 31 to be stuck in. Easy to snap in and not easy to come out.
  • the distance between the second wire clamping portions 716 of the two wire passing hooks 714 becomes smaller.
  • the two wire crossing hooks 714 are roughly M-shaped, and the guiding effect is better, and it is more convenient for the strong wire 31 to be stuck in, and the anti-extraction effect is also better, which can more reliably prevent the strong wire 31 from coming out after being stuck. .
  • the wire passing portion 713 includes a boss 717 , and the wire passing hook 714 is connected to the body 6 through the boss 717 .
  • the wire hook 714 is not directly connected to the body 6, but is connected to the body 6 through the boss 717.
  • the advantage is that the wire hook 714 is conveniently exposed from the electrical box 1, thereby reducing the number of strong wires 31 Contact and friction with the electrical box 1 reduce the risk of wear of the strong wire 31.
  • the electrical box 1 is provided with an opening 13, and at least part of the boss 717 extends to the outside of the electrical box 1 through the opening 13, so that the wire hook 714 Extending to the outside of the electrical box 1, in this way, the wire passing portion 713 extends to the outside of the electrical box 1 through the opening 13.
  • the strong wire 31 passing through the wire passing portion 713 will not come into contact with the sharp edges of the electrical box 1, and thus will not be easily worn or damaged. cut off.
  • the wire passing portion 713 is disposed on the surface of the bottom plate 61 away from the circuit board 2 . In this way, it is more convenient for the wire passing portion 713 to extend from the electrical box 1 and combine with the strong wire 31 .
  • the second wire fixing component 72 includes a wire clamping part 721, and the wire clamping part 721 is used to cooperate with the wire fixing clip 73, Clamp the external cable between the clamping part 721 and the cable clamp 73 .
  • the wire clamping portion 721 includes a wire clamping rib 722 .
  • the provided wire clamping ribs 722 can better cooperate with the wire fixing clips 73 to clamp the external cables and prevent the external cables from coming out. Therefore, it is helpful to further improve the wire fixing effect of the external cables.
  • the body 6 not only includes a base plate 61, but also includes a surrounding plate 62 and an extension 63.
  • the surrounding plate 62 is connected to the surroundings of the base plate 61 and faces the circuit board from the base plate 61.
  • the side where 2 is located protrudes, the extension part 63 is connected to the bottom plate 61 and is located outside the enclosure 62 , and the wire fixing part 711 and/or the second wire fixing component 72 is provided on the extension part 63 . In this way, the arrangement of the wire-fixing portion 711 and/or the second wire-fixing member 72 is more convenient.
  • the body 6 is provided with a threading portion 67, and the threading portion 67 passes the motor wire 32 of the power supply device 100 so that the motor wire 32 enters the electrical box 1, and Board 2 connection.
  • the body 6 is provided with a mounting piece 8, and the mounting piece 8 is used to install the temperature sensing package 33 of the electrical device 100.
  • the temperature sensing package 33 is installed by arranging the mounting piece 8 on the body 6 so that the temperature sensing package 33 can be installed on the circuit board fixing member 5. In this way, compared with the situation where the temperature sensing package 33 is usually installed outside the electrical box 1 , the temperature sensing package 33 is closer to the circuit board 2, therefore, it is beneficial to shorten the wiring path of the temperature sensing package 33, so that the temperature sensing package 33 can be connected to the circuit board 2 with only a shorter wire length, and the shorter the temperature sensing wire , the lower the cost, the more convenient the fixation. Therefore, such an arrangement is beneficial to saving costs and also facilitates the fixation of the temperature sensing wire of the temperature sensing package 33.
  • the mounting member 8 can be installed on the surface of the bottom plate 61 away from the circuit board 2, so that the mounting member 8 can be easily extended to the outside of the electrical box 1 to achieve heat dissipation and other purposes.
  • the electrical box 1 is provided with a notch 14, and the notch 14 exposes the installation part 8. In this way, the installation part 8 can be exposed through the notch 14. .
  • the mounting member 8 includes a mounting box 81 , and the mounting box 81 is used to accommodate the temperature sensing package 33 .
  • the surrounding side walls of the installation box 81 can restrain the temperature sensing package 33, the temperature sensing package 33 can be installed more firmly.
  • the surrounding side walls of the installation box 81 can also play a certain role in constraining the temperature sensing wire of the temperature sensing package 33. Therefore, it is also conducive to achieving a better fixing effect of the temperature sensing wire.
  • the inner wall of the installation box 81 is provided with a convex portion 85 , and the convex portion 85 is used to contact the temperature sensing package 33 .
  • the convex portion 85 Under the action of the convex portion 85, the temperature sensing package 33 and its temperature sensing wire are less likely to come out, so the restraining effect is better.
  • a wire outlet 82 is provided on the side wall of the installation box 81, and the temperature sensing wire of the temperature sensing package 33 passes through the wire outlet. 82 is connected to circuit board 2.
  • a ventilation hole 83 is provided on the side wall of the installation box 81 , which facilitates ventilation and heat dissipation of the temperature sensing package 33 .
  • Support ribs 64 are used to support the circuit board 2;
  • Support column 65 used to support the circuit board 2
  • the limiting hook 66 is used for engaging with the circuit board 2 .
  • the support columns 65 and the support ribs 64 can be disposed on the bottom plate 61 , and the support ribs 64 can be connected to the enclosure 62 when connected to the bottom plate 61 to better support the circuit board 2 .
  • the limiting hook 66 can be provided on the enclosure 62 to further constrain the circuit board 2 and limit the movement of the circuit board 2 .
  • FIGS. 1 to 6 Next, the embodiment shown in FIGS. 1 to 6 will be further described.
  • the electrical equipment 100 is an air conditioner 104 , specifically an air duct machine 101 , and its housing 102 is provided with an electrical box assembly 10 .
  • the electrical box assembly 10 includes an electrical box 1 , circuit board 2 and circuit board fixing part 5.
  • the circuit board 2 and the circuit board fixing part 5 are both arranged in the electrical box 1 , and the circuit board 2 is arranged on the circuit board fixing part 5 .
  • the electrical appliance box 1 includes a box body 11 and a box cover 12 .
  • the box cover 12 is closed on the box body 11 to form a cavity for accommodating the circuit board 2 and the circuit board fixing member 5 .
  • the circuit board 2 and the circuit board fixing part 5 are supported by the box body 11 .
  • the back of the box 11 (that is, the surface away from the circuit board 2 ) faces the inside of the housing 102 and faces the motor 103 and other structures of the electrical device 100 .
  • the circuit board 2 is provided with a power wiring board 21 and a communication wiring board 22 for connecting external power cables and communication wiring.
  • the circuit board 2 is also provided with a wiring portion for connecting the strong wires 31 such as the power supply heating wire 311 and the water pump wire 312, the motor wire 32 of the motor 103, and the temperature sensing wire of the temperature sensing package 33.
  • the circuit board fixing member 5 includes a body 6 .
  • the body 6 includes a bottom plate 61 , a surrounding plate 62 and an extension part 63 .
  • the bottom plate 61 has the same shape as the circuit board 2 and is square.
  • the enclosure 62 is connected to the surrounding edges of the bottom plate 61 .
  • the extension portion 63 is located outside the enclosure 62 and is connected to the bottom plate 61 to form a substantially L-shape.
  • the bottom plate 61 is provided with a plurality of support columns 65 and a plurality of support ribs 64, and the opposite side walls of the enclosure 62 are provided with limited hooks. 66.
  • the support pillars 65 are arranged at non-edge positions of the bottom plate 61
  • the support ribs 64 are arranged at the edge positions of the bottom plate 61 and are connected to the enclosure 62 .
  • the support pillars 65 and the support ribs 64 support the circuit board 2 together, making it more stable.
  • the limiting hook 66 is stuck on the circuit board 2 , and together with the support column 65 and the support rib 64 , limits the movement of the circuit board 2 in all directions.
  • the limiting hook 66 is configured as an elastic hook that can be opened to facilitate the disassembly and assembly of the circuit board 2 .
  • the base plate 61 is provided with fixing holes 68 and bolt holes 69 .
  • Connecting parts such as screws 91 pass through the fixing holes 68 to connect the circuit board fixing part 5 and the electrical box 1 .
  • the bolt 92 passes through the nut 93 and the bolt hole 69 to connect the circuit board 2 and the circuit board fixing part 5.
  • the circuit board fixing part 5 can be firmly connected to the circuit board 2 and the electrical appliance box 1, thereby realizing the stable installation of the circuit board 2 on the circuit board fixing part 5, and the circuit board fixing part 5 and the circuit board 2 on the electrical box 1.
  • the circuit board fixing member 5 is provided with a first wire fixing member 71 , a second wire fixing member 72 , a mounting box 81 and a threading portion 67 .
  • the first wire fixing part 71 is used to fix the strong wire 31 .
  • the first wire fixing component 71 includes a wire fixing part 711 and a wire passing part 713 .
  • the wire fixing part 711 is provided on the extension part 63 and includes a wire fixing groove 712 .
  • the wire passing portion 713 is disposed on the back side of the base plate 61 (that is, the surface facing away from the circuit board 2 ), and includes a boss 717 and two wire passing hooks 714 .
  • the boss 717 protrudes from the back surface of the base plate 61 in a direction away from the circuit board 2 .
  • the two wire hooks 714 are arranged on the boss 717 opposite to each other.
  • the first wire hooks 715 of both extend in the direction away from the circuit board 2.
  • the second wire hooks 716 of the two are respectively connected to
  • the corresponding ends of the first wire clamping parts 715 are bent in a direction closer to the circuit board 2 relative to the first wire clamping parts 715 to form hook shapes so as to clamp the strong wires 31 .
  • the distance between each second wire clamping portion 716 and the first wire clamping portion 715 becomes larger.
  • the distance between the two second wire clamping parts 716 becomes smaller, and the two wire crossing hooks 714 are generally M-shaped, which is convenient for guiding the strong wire 31 through the ends of the two second wire clamping parts 716.
  • the gap between the wire hooks 714 can effectively prevent the strong wires 31 from coming out, making it easy for the strong wires 31 to get stuck in but difficult to come out.
  • the box body 11 of the electrical box 1 is provided with an opening 13 at a position corresponding to the wire passing portion 713, and the boss 717 of the wire passing portion 713 extends from the opening 13 out, so that the two wire hooks 714 both extend to the outside of the electrical box 1.
  • the two wire hooks 714 are closer to the starting ends of the strong wires 31, making it easier to combine with the strong wires 31, and snap into the wires.
  • the strong wire 31 of the hook 714 does not come into contact with sharp edges and is not easily worn or cut.
  • the box body 11 of the electrical box 1 is also provided with a cable entry hole 15 .
  • the strong wire 31 passing through the wire hook 714 enters the inside of the electrical box 1 through the wire entry hole 15 and is clamped into the wire fixing slot 712 to achieve fixation.
  • the strong wire 31 includes both the electric heating wire 311 and the water pump wire 312
  • the electric heating wire 311 and the water pump wire 312 pass through the wire hook 714 and the wire entry hole 15 together, and are stuck into the wire fixing groove 712 together.
  • two sides of the two wire passing hooks 714 are respectively supported by a reinforcing rib 718.
  • the reinforcing rib 718 connects the boss 717 and the first thread clamping portion 715 of the thread hook 714 to enhance the strength of the thread hook 714 .
  • the fixation of the strong wire 31 can be completed, so it is simple and convenient. High assembly efficiency.
  • the first wire fixing member 71 is disposed on the circuit board fixing member 5 and is closer to the circuit board 2, the wiring path is shorter and the wire fixing effect is better.
  • the wire passing portion 713 is added to restrain the high-power wire 31 outside the wire-fixing groove 712, a more stable and firm fixation of the high-power wire 31 can be achieved.
  • the strong wire 31 can be fixed without the need for brackets, wire ties, etc., so the structure is relatively simple.
  • the second wire fixing part 72 is used to fix external cables.
  • the second wire-fixing component 72 includes two wire-clamping parts 721 and two wire-fixing clips 73 .
  • the two clamping parts 721 correspond to the two wire-fixing clips 73 one-to-one.
  • the two sets of clamping parts 721 and the fixed wire clamps 73 are respectively used to clamp external power cords and communication connections.
  • Each of the two clamping parts 721 includes a plurality of clamping ribs 722 fixed on the extension part 63 .
  • the two wire clamps 73 are both connected to the extension portion 63 through threaded connectors.
  • the installation box 81 is used as the installation part 8 for installing the temperature sensing package 33 .
  • the installation box 81 is disposed on the back of the bottom plate 61 and close to one edge of the bottom plate 61 .
  • the installation box 81 is roughly rectangular, and one end thereof away from the bottom plate 61 is open to form an installation opening 84 so that the temperature sensing package 33 can be installed.
  • the side wall close to the edge of the bottom plate 61 is provided with a wire outlet 82, which is connected to the surrounding wall.
  • the space enclosed by the board 62 and the bottom plate 61 is connected to facilitate the temperature sensing wire of the temperature sensing package 33 to pass through the outlet 82 and be connected to the circuit board 2 .
  • the installation box 81 is provided closer to the circuit board 2, the wiring path of the temperature sensing wire is shorter, which is convenient for fixing the wire and helps save costs.
  • the temperature sensing package 33 can be pre-installed on the circuit board fixture 5 when the electrical box assembly 10 is assembled, without having to wait until the whole machine is assembled. to install.
  • the temperature sensing package 33 is located in the installation box 81 and is constrained by the side walls of the installation box 81, the installation of the temperature sensing package 33 and its temperature sensing wire is more stable, and the temperature sensing package 33 and its sensing wire can be installed more firmly. Better protection of warm wires.
  • a plurality of convex portions 85 are provided on the inner wall of the installation box 81 . These convex portions 85 are staggeredly arranged, which can effectively prevent the temperature sensing package 33 from coming out. Therefore, the sensation can be further improved.
  • the side wall of the installation box 81 is provided with ventilation holes 83, which can facilitate the ventilation and heat dissipation of the temperature sensing bag 33, thereby improving the working reliability of the temperature sensing bag 33 and extending the service life of the temperature sensing bag 33.
  • the edge of the box body 11 of the electrical box 1 corresponding to the installation box 81 is provided with a notch 14 so that the installation box 81 is exposed outside the box body 11 .
  • the threading portion 67 is used for the power supply cord 32 to pass through.
  • the threading portion 67 is provided on the outer surface of the enclosure 62 and protrudes outward relative to the enclosure 62, and has a cavity inside for the motor wire 32 to pass through.
  • the electrical box 1 is provided with a corresponding through hole 16 so that the motor wire 32 passes through the through hole 16 and the cavity of the threading portion 67 in sequence, enters the inside of the electrical box 1 and is connected to the circuit board 2 .
  • the circuit board fixing part 5 integrates the installation and fixing structures of the electric heating wire 311, the water pump wire 312, the external cable and the temperature sensing package 33 into one body, so that there is no need for conventional small cable ties and clamps. parts, these cables can be reliably fixed.
  • the structure can be effectively streamlined, assembly efficiency can be improved, wire fixing effects can be improved, wiring paths can be optimized, material costs can be saved, and the performance of the electrical equipment 100 can be effectively improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)

Abstract

La présente demande concerne un élément de fixation de carte de circuit, un ensemble boîtier électrique et un appareil électrique. L'élément de fixation de carte de circuit comprend : un corps, comprenant une plaque inférieure, la plaque inférieure étant utilisée pour supporter une carte de circuit de l'appareil électrique ; et une structure de fixation de fil, qui est disposée sur le corps et comprend : une première partie de fixation de fil, comprenant une partie de fixation de fil et une partie de passage de fil, la partie de fixation de fil étant utilisée pour fixer un fil solide, la partie de passage de fil permettant au fil solide de passer au travers avant d'atteindre la partie de fixation de fil et le fil solide comprenant un fil chauffant électrique et/ou un fil de pompe à eau de l'appareil électrique ; et/ou une seconde partie de fixation de fil, qui est utilisée pour fixer un câble externe qui s'étend de l'extérieur de l'appareil électrique jusqu'à l'intérieur d'un boîtier électrique de l'appareil électrique et qui est connectée à la carte de circuit. Sur la base de ce qui précède, les performances de l'appareil électrique peuvent être améliorées.
PCT/CN2022/139464 2022-06-15 2022-12-16 Élément de fixation de carte de circuit, ensemble boîtier électrique et appareil électrique WO2023240964A1 (fr)

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CN114963480A (zh) * 2022-06-15 2022-08-30 珠海格力电器股份有限公司 电路板固定件、电器盒组件和电器设备

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US20040125575A1 (en) * 2002-12-30 2004-07-01 First International Computer Inc. Fast installation/removal structure for circuit board
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CN201674730U (zh) * 2010-04-28 2010-12-15 海信（山东）空调有限公司 一种空调器用电器盒及空调器
CN207881012U (zh) * 2017-12-26 2018-09-18 奥克斯空调股份有限公司 电控盒、空调室外机及空调器
CN108448516A (zh) * 2018-03-21 2018-08-24 珠海格力电器股份有限公司 线夹、电器盒及空调器
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CN218179182U (zh) * 2022-06-15 2022-12-30 珠海格力电器股份有限公司 电路板固定件、电器盒组件和电器设备

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