WO2023240964A1

WO2023240964A1 - Circuit board fastening member, electrical box assembly, and electrical appliance

Info

Publication number: WO2023240964A1
Application number: PCT/CN2022/139464
Authority: WO
Inventors: 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
Priority date: 2022-06-15
Filing date: 2022-12-16
Publication date: 2023-12-21
Also published as: CN114963480A

Abstract

The present application relates to a circuit board fastening member, an electrical box assembly, and an electrical appliance. The circuit board fastening member comprises: a body, comprising a bottom plate, the bottom plate being used to support a circuit board of the electrical appliance; and a wire fastening structure, which is disposed on the body and comprises: a first wire fastening part, comprising a wire fastening part and a wire passing part, wherein the wire fastening part is used to fasten a strong wire, the wire passing part allows the strong wire to pass through before reaching the wire fastening part, and the strong wire comprises at least one of an electric heating wire and a water pump wire of the electrical appliance; and/or a second wire fastening part, which is used to fasten an external cable that extends from the outside of the electrical appliance to the inside of an electrical box of the electrical appliance and that is connected to the circuit board. On the basis of the foregoing, the performance of the electrical appliance can be improved.

Description

Circuit board fixtures, electrical box assemblies and electrical equipment

Cross-references to related applications

This application is based on the Chinese application with application number 202210676063.3 and the filing date is June 15, 2022, and claims its priority. The disclosure content of the Chinese application is hereby incorporated into this application as a whole.

Technical field

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.

Background technique

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.

In the related art, some 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 There are many parts, the assembly is complicated, and the solid wiring is poor, all of which affect the performance of electrical equipment.

Contents of the invention

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.

In order to achieve the above purpose, 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; and

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.

In some embodiments, the line passing portion includes a line passing hook, and 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.

In some embodiments, 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.

In some embodiments, along the clamping direction of the strong wire, the distance between the second wire clamping parts of the two wire passing hooks becomes smaller.

In some embodiments, the wire passing portion includes a boss, and the wire passing hook is connected to the body through the boss.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, the wire clamping portion includes a wire clamping bar.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, the mounting box is configured to be at least one of the following:

There is a wire outlet on the side wall of the installation box, and the temperature sensing wire of the temperature sensing package passes through the wire outlet and is connected to the circuit board;

There are ventilation holes on the side wall of the installation box;

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.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, the electrical device includes an air conditioner.

In some embodiments, 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.

Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

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.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application or its application or uses. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this application.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered a part of the specification.

In the description of this application, it should be understood that the orientation indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom", etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description. Without explanation to the contrary, these directional words do not indicate and imply the referred devices or components. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the scope of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

In the description of this application, it should be understood that the use of words such as "first" and "second" to define parts is only to facilitate the distinction between corresponding parts. Unless otherwise stated, the above words have no special meaning. meaning and therefore cannot be construed as limiting the scope of protection of this application.

In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

Figures 1 to 6 exemplarily illustrate the structures of the electrical equipment, electrical box assembly and circuit board fixing member in the present application.

Referring to Figures 1 to 6, 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 . Moreover, in some embodiments, 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 .

For example, referring to FIG. 1 , 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 . For another example, referring to FIG. 1 , 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 . For another example, referring to FIG. 1 , the motor wire 32 of the motor in the electrical device 100 also needs to be connected to the circuit board 2 .

In addition, 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 . Illustratively, referring to Figure 3, in some embodiments, 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 cables connected to the circuit board 2, whether internal cables or external cables, need to be restrained to prevent the cable bodies from being messy and loose, affecting normal operation.

In the related art, various cable ties, cable clamps and brackets are usually used to fix the cables connected to the circuit board 2. In particular, for 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. For example, in some electrical equipment, a bracket is set outside the electrical box 1, and wire ties are used on the bracket to fix the electrical appliances. Heating wire 311 and water pump wire 312. For another example, in some electrical equipment, 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 .

It can be seen that the fixed wire structure of the electrical equipment 100 needs to be improved.

In view of the above situation, 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.

Referring to FIGS. 1-6 , in this application, 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 .

By arranging at least one of the first wire 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 On 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.

On the one hand, since the first wire fixing member 71 and/or the second wire fixing member 72 are no longer provided outside the electrical box 1, but are directly provided on the circuit board fixing member 5, 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.

On the other hand, since 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 .

On the other hand, 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 .

It can be seen that based on the circuit board fixing part 5 of the present application, the performance of the electrical equipment 100 can be effectively improved.

As an example of the thread passing portion 713 in this application, see FIG. 6 in combination with FIG. 1 . In some embodiments, the thread passing portion 713 includes a thread passing hook 714 , and 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.

And, continuing to refer to FIG. 6 , in some embodiments, 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.

As shown in FIG. 6 , in some embodiments, along the insertion direction of the strong wire 31 , the distance between the second wire clamping portions 716 of the two wire passing hooks 714 becomes smaller. In this way, 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. .

In addition, continue to refer to FIG. 6 , combined with FIG. 1 , in some embodiments, 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 . At this time, 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. For example, referring to Figures 1, 4 and 6, in some embodiments, 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.

As shown in FIG. 6 , in some embodiments, 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 .

In addition, as an example of the second wire fixing component 71, see FIGS. 3-6. In some embodiments, 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 .

Based on the above settings, you only need to place the external cable on the clamping part 721, then press the wire clamp 73 on the external cable, and fix it on the circuit board fixing part 5, so that the external cable can be fixed. It is simple and convenient, has high efficiency, has fewer parts and has a simple structure.

Specifically, referring to FIGS. 4 and 5 , in some embodiments, 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.

As shown in Figures 4 and 5, in some embodiments, 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.

As mentioned before, in the electrical equipment 100 , not only the strong wires 31 and external cables need to be connected to the circuit board 2 , but the motor wires 32 and the temperature sensing wires of the temperature sensing package 33 also need to be connected to the circuit board 2 . In view of this, this application also carries out structural design for the motor wire 32 and the temperature sensing package 33 respectively.

Among them, for the motor wire 32, see Figure 5. In some embodiments, 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.

As for the temperature sensing package 33, see Figures 1 to 6. In some embodiments, 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.

Among them, 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. In addition, in order to facilitate the installation part 8 to extend to the outside of the electrical box 1, see FIG. 4. In some embodiments, 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. .

Referring to FIGS. 1 and 6 , as an example of the mounting member 8 , in some embodiments, the mounting member 8 includes a mounting box 81 , and the mounting box 81 is used to accommodate the temperature sensing package 33 .

Since 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. In addition, 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.

Moreover, referring to FIG. 6 , in some embodiments, 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 . 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.

In order to facilitate the connection between the temperature sensing wire of the temperature sensing package 33 and the circuit board 2, see Figure 6. In some embodiments, 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.

In addition, referring to FIG. 6 , in some embodiments, 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 .

In the aforementioned embodiments, in order to achieve a better supporting and limiting effect of the circuit board fixing member 5 on the circuit board 2, see Figure 5, at least one of the following can be provided on the body 6:

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 .

Next, the embodiment shown in FIGS. 1 to 6 will be further described.

As shown in FIGS. 1 to 6 , in this embodiment, 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 .

Among them, as shown in FIG. 1 , 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 .

As shown in FIG. 3 , 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. At the same time, 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.

As shown in FIGS. 5 and 6 , in this embodiment, 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.

Among them, as can be seen from Figures 5 and 6, in this embodiment, 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 , and 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. In this embodiment, 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 .

At the same time, 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.

In this way, 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.

In addition, as shown in FIGS. 1 to 6 , in this embodiment, 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 .

Among them, the first wire fixing part 71 is used to fix the strong wire 31 . As shown in FIGS. 4 to 6 , in this embodiment, 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. At the same time, 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 . Moreover, along the direction approaching the circuit board 2 (that is, the direction in which the strong wire 31 is inserted), the distance between each second wire clamping portion 716 and the first wire clamping portion 715 becomes larger. In this way, along the direction of the strong wire 31 31, 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.

It can be seen from Figure 1, Figure 4 and Figure 6 that in this embodiment, 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. In this way, 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.

Moreover, as shown in FIGS. 1 and 4 , in this embodiment, 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. When 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.

In order to enhance the strength of the wire passing portion 713, as shown in FIG. 6, in this embodiment, 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 .

Based on the provided first wire fixing component 71, since the strong wire 31 only needs to be clamped into the wire passing portion 713, and then clamped into the wire fixing groove 712, the fixation of the strong wire 31 can be completed, so it is simple and convenient. High assembly efficiency. At the same time, since 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. In particular, since 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. Moreover, 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. As shown in FIGS. 4-6 , in this embodiment, 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. When fixing the wire, make the wire fixing clip 73 and the corresponding wire clamping rib 722 clamp the external power cord or communication wiring in the middle, and then fix the wire fixing clip 73 on the extension 63 to complete the external power cord or communication wiring. The fixation is simple, convenient and efficient. Moreover, since the wire clamping portion 721 and the wire fixing clip 73 are both disposed on the circuit board fixing member 5, closer to the circuit board 2, the wiring path is shorter and the wire fixing effect is better. At the same time, since there is no need to provide a bracket and a backing plate to cooperate with the wire clamp 73 to clamp the wire, the structure is relatively simple.

The installation box 81 is used as the installation part 8 for installing the temperature sensing package 33 . As shown in FIG. 6 , in this embodiment, 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 .

Since 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.

At the same time, since the installation box 81 is integrated on the circuit board fixture 5, 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.

Moreover, since 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.

As shown in FIG. 6 , in this embodiment, 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 installation stability of the temperature bulb 33 and its temperature sensing wire.

At the same time, as shown in Figure 6, 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.

In addition, as shown in FIGS. 1 to 6 , in this embodiment, 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. As shown in Figure 5, in this embodiment, 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. At the same time, as shown in FIG. 1 , 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 .

In summary, in this embodiment, 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. In this way, 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.

The above are only exemplary embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A circuit board fixing part (5), including:

The body (6) includes a bottom plate (61), which is used to support the circuit board (2) of the electrical equipment (100); and a solid wire structure (7), which is provided on the body (6), and include:

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). The wire passing part (713) provides The strong wire (31) passes through before reaching the fixed wire part (711). The strong wire (31) includes the electric heating wire (311) and the water pump wire (312) of the electrical equipment (100). at least one of; and/or,

The second wire fixing component (72) is used to fix the external cable extending from the outside of the electrical equipment (100) to the electrical box (1) of the electrical equipment (100) and connected to the circuit board (2).
The circuit board fixing member (5) according to claim 1, wherein the wire passing portion (713) includes a wire passing hook (714), and the wire passing hook (714) includes a first wire catching portion (715). ) and a second wire clamping part (716). The second wire clamping part (716) is connected to the body (6) through the first wire clamping part (715) and is relative to the first wire clamping part (715). The first wire clamping part (715) is bent, and a space for the strong wire (31) to be clamped is formed between the first wire clamping part (715) and the second wire clamping part (716).
The circuit board fixing member (5) according to claim 2, wherein the wire passing portion (713) includes two wire passing hooks (714), and a third of the two wire passing hooks (714) The two clamping line parts (716) are opposite to each other.
The circuit board fixing member (5) according to claim 3, wherein along the clamping direction of the strong wire (31), the second wire clamping portion (716) of the two wire passing hooks (714) The distance between them becomes smaller.
The circuit board fixing member (5) according to any one of claims 2 to 4, wherein the wire passing portion (713) includes a boss (717), and the wire passing hook (714) passes through the boss (717). 717) is connected to the body (6).
The circuit board fixing member (5) according to any one of claims 1 to 5, wherein the wire passing portion (713) is provided on a surface of the bottom plate (61) facing away from the circuit board (2); and /Or, the wire fixing part (711) includes a wire fixing groove (712).
The circuit board fixing part (5) according to any one of claims 1 to 6, wherein the second wire fixing part (72) includes a wire clamping part (721), and the wire clamping part (721) is used to connect with the fixing part (72). The wire clamp (73) cooperates to clamp the external cable between the clamping portion (721) and the wire-fixing clamp (73).
The circuit board fixing member (5) according to claim 7, wherein the wire clamping portion (721) includes a wire clamping rib (722).
The circuit board fixing member (5) according to any one of claims 1 to 8, wherein the body (6) further includes an enclosure (62) and an extension (63), and the enclosure (62) is connected to the The base plate (61) protrudes from the base plate (61) toward the side where the circuit board (2) is located. The extension portion (63) is connected to the base plate (61) and is located around the perimeter. On the outside of the plate (62), the wire fixing part (711) and/or the second wire fixing component (72) are provided on the extension part (63).
The circuit board fixing piece (5) according to any one of claims 1 to 9, wherein the body (6) is provided with a mounting piece (8), and the mounting piece (8) is used to install the electrical equipment ( 100); and/or, the body (6) is provided with a threading portion (67), and the threading portion (67) is used for the motor wire (32) of the electrical equipment (100) pass through.
The circuit board fixing member (5) according to claim 10, wherein the mounting member (8) includes a mounting box (81), and the mounting box (81) is used to accommodate the temperature sensing package (33); And/or, the mounting member (8) is installed on the surface of the base plate (61) away from the circuit board (2).
The circuit board fixture (5) according to claim 11, wherein the mounting box (81) is configured as at least one of the following:

There is a wire outlet (82) 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) and is connected to the circuit board (2);

The side wall of the installation box (81) is provided with ventilation holes (83);

A convex portion (85) is provided on the inner wall of the installation box (81), and the convex portion (85) is used to contact the temperature sensing package (33).
The circuit board fixing member (5) according to any one of claims 1 to 12, wherein the body (6) is provided with at least one of the following:

Support ribs (64), used to support the circuit board (2);

Support column (65), used to support the circuit board (2);

The limiting hook (66) is used for clamping with the circuit board (2).
The circuit board fixing member (5) according to claim 13, wherein the support column (65) and/or the support rib (64) are provided on the bottom plate (61); and/or the body (6) includes a coaming 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, so The limiting hook (66) is provided on the enclosure (62).
The circuit board fixing member (5) according to claim 13 or 14, wherein the body (6) includes a surrounding plate (62), the surrounding plate (62) is connected to the periphery of the bottom plate (61), and The bottom plate (61) protrudes toward the side where the circuit board (2) is located, and the support ribs (64) are connected to both the bottom plate (61) and the enclosure plate (62).
An electrical appliance box assembly (10), including an electrical appliance box (1) and a circuit board (2), which also includes the circuit board fixing member (5) as claimed in any one of claims 1 to 15, 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 assembly (10) according to claim 16, wherein the electrical appliance box (1) is provided with an opening (13), and the wire passing portion (713) of the circuit board fixing member (5) passes through the opening (13). 13) Extending to the outside of the electrical box (1); and/or, the electrical box (1) is provided with a notch (14), and the notch (14) exposes the installation of the circuit board fixing member (5) Piece(8).
The electrical box assembly (10) according to claim 17, wherein at least part of the boss (717) of the wire passing portion (713) extends to the outside of the electrical box (1) through the opening (13).
An electrical equipment (100), including the electrical box assembly (10) according to any one of claims 16-18.
The electrical device (100) of claim 19, wherein the electrical device (100) includes an air conditioner (104).
The electrical equipment (100) according to claim 20, wherein the air conditioner (104) includes a duct machine (101).