CN215872312U - Wire passing device, electric control box and air conditioner - Google Patents

Abstract

The utility model discloses a wire passing device, an electric control box and an air conditioner, relates to the technical field of air conditioners and aims to solve the technical problem that the electric control box is poor in sealing performance. The wire passing device comprises a body and a wire passing through hole arranged in the body, the body comprises an installation part and a wire passing part which are connected with each other, the wire passing through hole sequentially penetrates through the installation part and the wire passing part, the wire passing through hole comprises a first hole section positioned in the installation part and a second hole section positioned in the wire passing part, and the inner contour size of the first hole section is larger than that of the second hole section; the inner wall of the second hole section is provided with a sealing part which is arranged in the second hole section in a blocking mode, the sealing part is provided with a wire passing opening which can be opened and closed elastically, the wire passing opening is used for a cable accommodated in the wire passing through hole to pass through, and the edge of the wire passing opening is elastically abutted to the cable. The wire passing device disclosed by the utility model is applied to the electric control box, is used for leading out a cable in the electric control box and ensures that the electric control box has better sealing property.

Description

Wire passing device, electric control box and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a wire passing device, an electric control box and an air conditioner.

Background

The main electric control elements of the air conditioner are mostly integrated on the electric control board of the outdoor unit, and the electric control board can be assembled in the electric control box. The electric control box generally comprises a box body, a containing cavity is formed in the box body, the electric control board can be contained in the containing cavity, a wire passing hole is generally formed in the box body in order to lead out a cable on the electric control board to the outside of the box body, a wire passing rubber ring is installed on the wire passing hole, and the cable on the electric control board can penetrate through the wire passing rubber ring and extend out of the box body. However, when the cable is inserted into the wire passing rubber ring, a gap is generally formed between the outer surface of the cable and the inner contour of the wire passing rubber ring, and external impurities, water vapor and the like can enter the electric control box through the gap, so that the sealing performance of the electric control box is poor.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a wire passing device, an electric control box and an air conditioner, and aims to solve the technical problem that the electric control box is poor in sealing performance.

In order to achieve the purpose, the wire passing device provided by the utility model comprises a body and a wire passing through hole arranged in the body, wherein the body comprises an installation part and a wire passing part which are connected with each other, the wire passing through hole sequentially penetrates through the installation part and the wire passing part, the wire passing through hole comprises a first hole section positioned in the installation part and a second hole section positioned in the wire passing part, and the inner contour size of the first hole section is larger than that of the second hole section; the inner wall of the second hole section is provided with a sealing part which is arranged in the second hole section in a blocking mode, the sealing part is provided with a wire passing opening which can be opened and closed elastically, the wire passing opening is used for a cable accommodated in the wire passing through hole to pass through, and the edge of the wire passing opening is elastically abutted to the cable.

The utility model has the beneficial effects that: through set up the sealing that has the line opening of crossing on the inner wall at second hole section, when holding the cable in the line through-hole, the cable can wear to establish in the line opening of crossing, cross line open-ended edge elasticity butt in the cable periphery, on the one hand when cable quantity is many, the sealing can play the effect of inwards restrainting many cables, reduce the gap between each cable, and the sealing can the elasticity shutoff between the inner wall of cable surface and second hole section, prevent that external impurity and steam from crossing the line through-hole and getting into automatically controlled box, the leakproofness of automatically controlled box has been improved. On the other hand, because the sealing part is positioned in the second hole section with smaller inner contour dimension, the outer contour dimension of the sealing part in the circumferential direction is smaller, so that the cross-sectional area of the sealing part is smaller, and the sealing part has better support for the cable.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, cross line portion includes interconnect's changeover portion and bears the weight of the section, and the changeover portion is connected with the installation department, and the second hole section is including being located the changeover portion hole section in the changeover portion and being located the bearing hole section that bears the weight of the section, and the interior contour dimension of changeover portion hole section reduces by the direction of installation department towards crossing line portion gradually, and the interior contour dimension that bears the weight of the hole section keeps unanimous along the extending direction of crossing the line through-hole.

Further, the seal is located in the load-bearing bore section.

Further, the sealing part is located at the junction position of the bearing hole section and the transition hole section.

Further, the seal is located in the transition hole section.

Further, the sealing portion includes a plurality of resilient sealing flaps that collectively enclose the wire passing opening.

Further, the plurality of sealing flaps jointly enclose the cross-shaped wire passing opening.

Further, when the wire passing opening is in a free state, the edge shapes of the adjacent sealing flaps are matched with each other and are contacted with each other so as to jointly block the wire passing opening; or,

when the wire passing opening is in a free state, a gap is formed between the edges of the adjacent sealing flaps.

Further, the outer surface of installation department is equipped with connecting portion, and connecting portion are configured as the line hole edge of can connecting on automatically controlled box.

Further, the connecting portion is a connecting groove opened on the outer surface of the mounting portion, and the connecting groove extends along the circumferential direction of the mounting portion to form an annular groove.

Furthermore, the edge of the notch of the connecting groove is provided with a clamping hook part, and the clamping hook end of the clamping hook part extends into the connecting groove.

The utility model also provides an electric control box which comprises a box body and the wire passing device in any technical scheme, wherein the wire passing device is arranged on the box body.

Further, the box body is a closed box body.

The utility model also provides an air conditioner which comprises the electric control box in any technical scheme.

The beneficial effects of the electric control box and the air conditioner are the same as those of the wire passing device, and are not described again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electrical control box according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a wire passing device according to an embodiment of the present invention;

fig. 3 is a sectional view showing an internal structure of the thread passing device;

fig. 4 is a schematic structural view of the wire passing device installed on the box body according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 3 at A;

fig. 7 is a front view of fig. 4.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Electric control box	110	Box body
111	Box cover	112	Bottom wall
				113	Side wall	1131	Wire through hole
1132	A bent part	114	Containing cavity
				120	Wire passing device	121	Mounting part
1211	Transition section	1212	Bearing section
				122	Wire passing part	123	Connecting part
1231	Connecting groove	1232	Hook part
				124	Body	130	Wire through hole
131	First hole section	132	Second hole section
				150	Sealing part	151	Sealing flap
152	Wire passing opening	1321	Transition hole section
				1322	Bearing hole section

Detailed Description

In the related art, a wire passing rubber ring is arranged on the box wall of the electronic control box at the position of the wire passing hole, the wire passing rubber ring is an annular piece, the outer side surface of the wire passing rubber ring can be connected with the wire passing hole, and the inner side surface of the wire passing rubber ring forms a channel for a cable to pass through. The cable on the electric control board in the electric control box can be led out to the outside of the box body through the channel for electrical connection. However, a gap is formed between the cable accommodated in the wire passing rubber ring and the inner side surface of the wire passing rubber ring, and impurities such as moisture, dust and the like outside the electric control box can often enter the electric control box through the gap, so that the electric control box in the prior art has the problem of poor sealing performance.

In view of this, in the embodiment of the present invention, the sealing portion is disposed on the wire passing through hole of the wire passing device, and the sealing portion has the wire passing opening, so that when the cable is inserted into the wire passing opening, the sealing portion can be elastically sealed between the cable and the inner wall of the wire passing through hole, so as to improve the sealing performance of the electronic control box. On the other hand, because the sealing part is positioned in the second hole section with smaller inner contour dimension, the outer contour dimension of the sealing part in the circumferential direction is smaller, so that the cross-sectional area of the sealing part is smaller, and the sealing part has better support for the cable.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 shows an exploded view of the electronic control box 100 of the present invention, and referring to fig. 1, the electronic control box 100 may include a box body 110, the box body 110 includes a box cover 111, a bottom wall 112, and a side wall 113 surrounding the bottom wall 112, and the bottom wall 112 and the side wall 113 together define a receiving cavity 114.

In addition, the electronic control box 100 of the embodiment of the present application may be, for example, a sealed electronic control box. Therefore, other foreign matters such as water drops and dust can be prevented from entering the electric control box 100 to damage electronic elements in the electric control box 100, and the waterproof, dustproof and anticorrosion effects are achieved.

The electronic control box 100 may further include a wire guide 120 and a circuit board (not shown) accommodated in the accommodating cavity 114, the wire guide 120 may be disposed on the sidewall 113, for example, the sidewall 113 near the front side of the drawing of the box body 110 in fig. 1, and a cable connected to the circuit board may be led out of the box body 110 through the wire guide 120.

It can be understood that, in the above-mentioned scheme, the case that the circuit board, the wire passing device 120 and other components are arranged in the electronic control box 100 is exemplified, but the embodiment of the present invention is not limited thereto, and in practice, components such as a heat dissipation unit, a circuit board mounting bracket and the like may also be arranged in the electronic control box 100 according to requirements.

The position where the wire guide 120 is installed is not limited to the side wall 113 located on the front side in the drawing of fig. 1, and may be installed on the side wall 113 located on the left, right, or rear side in the drawing, or may be installed on another wall portion of the case body 110.

The structure of the wire passing device 120 will be described with reference to the drawings.

Fig. 2 is a perspective view of wire guide 120, and fig. 3 is a sectional view of wire guide 120.

Referring to fig. 2 and 3, the wire guide 120 includes a body 124 and a wire guide through hole 130 disposed inside the body 124, where the wire guide through hole 130 is a wire guide passage through which a cable passes. The through-hole 130 may penetrate two opposite surfaces of the body 124, i.e., the through-hole 130 communicates with the outer surface of the body 124.

When the cable in box body 110 is led out to the outside of box body 110 through wire through hole 130, it is conceivable to provide sealing portion 150 on the inner wall of wire through hole 130 to block wire through hole 130 in order to improve the sealing performance of electronic control box 100.

The sealing part 150 is provided with a wire passing opening 152 capable of being opened and closed elastically. The wire passing opening 152 is used for the cable accommodated in the wire passing through hole 130 to pass through, that is, the cable can be arranged in the wire passing opening 152 in a penetrating manner, and the edge of the wire passing opening 152 can be elastically abutted to the cable. Thus, under the condition that the cable penetrates through the wire passing through hole 130, the gap between the inside of the wire passing through hole 130 and the cable can be elastically sealed by the sealing part 150, the sealing performance of the electric control box 100 at the position of the wire passing device 120 is ensured, and the overall sealing performance of the electric control box 100 is improved.

It can be understood that, under the condition that there are many cables, because the edge of crossing the line opening 152 can restraint the elasticity butt with the cable that many cables are constituteed, also can play the effect of restrainting to many cables, reduces the clearance between the many cables as far as possible, prevents that external impurity and steam from passing through in the clearance between line through-hole 130 and each cable, has more optimized automatically controlled box 100's leakproofness.

In the embodiment of the present invention, it can be understood that the sealing portion 150 has two states according to whether the cable passes through the through hole, and when the cable does not pass through the through hole 130, the through opening 152 on the sealing portion 150 is in a free state, and in this state, the sealing portion 150 does not elastically deform. When a cable is inserted into the through hole 130, the sealing portion 150 is elastically deformed by the cable, and the through opening 152 of the sealing portion 150 is in an open use state.

The elastic opening and closing means that the wire passing opening 152 can be switched from being closed to being opened in a free state and a using state, or the size of the wire passing opening 152 can be switched from being smaller in opening degree to being larger in opening degree. It is understood that the size of the wire passing opening 152 may be elastically changed according to the size of the outer circumferential surface profile of the cable passing therethrough, regardless of the free state or the used state of the sealing part 150. In an embodiment of the present invention, in order to achieve elastic opening and closing of the wire passing opening 152 on the sealing part 150, the sealing part 150 may be made of an elastic material, for example, the sealing part 150 may be a rubber member. In addition, the entire wire guide 120 may be made of rubber, and in this case, the entire wire guide 120 is an elastic member.

In the embodiment of the present invention, the possible structure forms of the through-line opening 152 may be as follows:

one is that the sealing part 150 has a smaller wire passing opening 152 in a free state, after the cable is threaded through the wire passing through hole 130, the wire passing opening 152 is expanded by the cable, and the inner edge of the wire passing opening 152 abuts against the periphery of the cable. It can be understood that, at this time, the diameter of the wire passing opening 152 of the sealing part 150 in the free state is smaller than the outer diameter of the cable to be threaded through, so as to ensure that the edge of the wire passing opening 152 can elastically cover the periphery of the cable.

Secondly, the wire passing opening 152 is in a closed state in a free state, after the cable is inserted into the wire passing through hole 130, the wire passing opening 152 is formed on the sealing portion 150, and similarly, the inner edge of the wire passing opening 152 is abutted to the periphery of the cable.

For example, the sealing portion 150 may include a plurality of sealing flaps 151 having elasticity, the plurality of sealing flaps 151 may collectively enclose the wire passing opening 152, for example, one end of the plurality of sealing flaps 151 may be fixed on an inner wall of the wire passing through hole 130, and the other end of the plurality of sealing flaps 151 may protrude in a direction away from the inner wall of the wire passing through hole 130 and may be configured to abut against an outer side of the cable. In other words, when the cable is accommodated in the through hole 130, the sealing flap 151 needs to be attached to the outer sidewall 113 of the cable to improve the sealing property.

The wire guide 120 shown in fig. 2 is described by taking an example in which the sealing portion 150 has four sealing flaps 151, and in the wire guide 120 shown in fig. 2, the four sealing flaps 151 may collectively enclose a cross-shaped wire guide opening 152. For example, when the wire passing opening 152 is in a free state, a gap may be formed between the edges of each adjacent two sealing flaps 151, and the gap is opened by a wire after the wire is inserted into the wire passing through hole 130, thereby forming the wire passing opening 152 in a use state. At this time, the tip end portions of the respective seal flaps 151 can be bent inward of the housing chamber 114, and the bent portions of the seal flaps 151 can be brought into contact with the outer periphery of the cable, so that the cable can be well attached to the outer periphery of the cable. Of course, the tip end portion of each seal flap 151 may be bent outward of the housing chamber 114, and the bent portion of the seal flap 151 may abut against the outer periphery of the cable. It can be understood that, in the case where the number of the sealing flaps 151 is large, the effect of fitting the tip ends of the sealing flaps 151 to the outer periphery of the cable is better.

It should be noted that, in order to make each sealing flap 151 deform uniformly so as to support and abut the cable in the circumferential direction of the cable, the sealing flaps 151 are also required to be uniformly arranged along the circumferential direction of the through hole 130, and the sealing flaps 151 are arranged symmetrically with respect to the axial direction of the through hole 130.

It can be understood that fig. 2 is a schematic view of the wire guide 120 with the sealing portion in a free state, and in a case where no cable is disposed in the wire through hole 130, the size of the gap formed between the four sealing flaps 151 is small, and the sealing requirement of the electrical control box 100 can also be met to some extent.

As another possible embodiment, when the wire through opening 152 is in a free state, the edge shapes of the adjacent sealing flaps 151 may also match and contact each other to jointly block the wire through opening 152. The processing and manufacturing of the wire passing opening 152 are simple, and the wire passing opening 152 can be formed only by cutting the sealing part 150 under the condition that the wire passing device 120 is integrally formed.

After the cable is inserted into the cable through hole 130, the edge of the sealing flap 151 is partially opened by the cable to form a cable opening 152 in a use state. At this time, the tip end portion of the seal flap 151 is bent inward of the housing chamber 114, and the bent portion of the seal flap 151 abuts against the outer periphery of the cable, so that the seal flap can be attached to the outer periphery of the cable in a satisfactory manner. Under the condition that no cable is arranged in the through hole 130, the edges of the four sealing flaps 151 are in contact with each other, so that the through hole 130 can be sealed well.

In the embodiment of the present invention, referring to fig. 3, the sealing flap 151 may have an elastic sheet structure, so that when a cable passes through, the top end of the sealing flap 151 is more easily elastically deformed. In addition, it is understood that the number of the sealing flaps 151 is not limited to 4, and may be set to other numbers according to actual needs; the shape of the wire through opening 152 is not limited to a cross shape, and may be other shapes as needed, and the number and the structure of the sealing flaps 151 are similar to those in fig. 2 and 3, and are not described again here.

In the embodiment of the present invention, with continued reference to fig. 2 and 3, the body 124 may include a mounting portion 121 and a wire passing portion 122 connected to each other, and the wire passing through hole 130 sequentially penetrates through the mounting portion 121 and the wire passing portion 122. For example, mounting portion 121 is a portion connected to case 110, and wire threading portion 122 may be located at an end of body 124 facing away from case 110. The wire passing through hole 130 may include a first hole segment 131 in the mounting portion 121 and a second hole segment 132 in the wire passing portion 122, an inner contour size of the first hole segment 131 is larger than an inner contour size of the second hole segment 132, and when the cable passes through the wire passing through hole 130, the cable may sequentially pass through the first hole segment 131 and the second hole segment 132 and protrude out of the case body 110.

Since the inner contour of the second bore segment 132 is smaller than that of the first bore segment 131, which is equivalent to the body 124 being locally constricted at the outlet of the cable, the distance between the cable and the inner wall of the second bore segment 132 is reduced, and the tightness of the cable passing device 120 can be improved to a certain extent. The sealing portion 150 is located in the second hole section 132 with a smaller inner contour dimension, in other words, the sealing portion 150 is disposed on the inner wall of the second hole section 132 and is blocked in the second hole section 132, so as to close the originally smaller distance between the cable and the inner wall of the second hole section 132, and the sealing effect is better. In addition, the outer profile of the sealing part 150 in the circumferential direction is small, so that the cross-sectional area of the sealing part 150 is small, which makes the sealing part 150 have better support for the cable.

It is understood that the inner contour dimension of the first bore segment 131 may refer to a circumferential dimension of a cross-section of the first bore segment 131 along the axial direction of the through-bore 130. The inner contour dimension of second bore segment 132 may refer to a perimeter dimension of a cross-section of second bore segment 132 along the axial direction of through-bore 130.

In an embodiment of the present invention, referring to fig. 2, 3, and 5, the wire passing portion 122 includes a transition section 1211 and a bearing section 1212 connected to each other, and the transition section 1211 is connected to the mounting portion 121.

The second bore segment 132 may include a transition bore segment 1321 located within the transition segment 1211 and a load-bearing bore segment 1322 located within the load-bearing segment 1212. In order to better gather the more dispersed cables in the box body 110, the inner contour of the bearing hole 1322 may be kept constant, i.e., the inner contour of the bearing hole 1322 is kept uniform along the extending direction of the wire passing through hole 130. The inner dimension of the transition hole 1321 is gradually reduced from the mounting portion 121 to the wire passing portion 122, so that the relatively scattered cables are gradually gathered and smoothly pass through the sealing portion 150.

Referring to fig. 3, in the embodiment of the present invention, the sealing portion 150 may be located at a boundary position between the bearing hole segment 1322 and the transition hole segment, so that after the cable passes through the sealing portion 150, the bearing hole segment 1322 may also carry a certain load, and the cable may be prevented from being bent.

Due to the sealing part 150, the inner contour dimension of the wire passing part 122 may not be gradually reduced, but may be kept constant along the extending direction of the wire passing through hole 130, which is more favorable for the wire passing part 122 to be capable of better supporting the cable.

Similar to the above, it is contemplated that the inner contour dimensions of the mounting portion 121 may also remain unchanged.

Referring to fig. 3, there are two possibilities for the location of the seal 150 in the second bore section 132:

one is that the sealing portion 150 is located in the bearing bore section 1322, and the bearing bore section 1322 is the smallest portion of the inner contour dimension of the second bore section 132, so that the radial dimension of the sealing flap 151 can be made smaller, and the sealing portion 150 can support the cable better.

The other is that the sealing portion 150 is located in the transition bore segment 1321, which allows the radial dimension of the sealing flap 151 to be smaller than in the mounting portion 121, which has a larger inner profile dimension, and allows the sealing portion 150 to support the cable more effectively.

In the embodiment of the present invention, as described above, the mounting portion 121 is a portion connected to the box body 110, and referring to fig. 4, 5, 6, and 7, a connection portion 123 may be provided on an outer surface of the mounting portion 121, and the connection portion 123 may be configured to be capable of being connected to an edge of the wire passing hole 1131 on the electrical control box 100.

For example, the connection portion 123 may be a connection groove 1231 opened on an outer surface of the mounting portion 121, and the connection groove 1231 extends along a circumferential direction of the mounting portion 121 to form an annular groove. The annular groove may be matched with the wire passing hole 1131 on the box body 110, so that the edge of the wire passing hole 1131 may be clamped in the annular groove to clamp the wire passing device 120 on the box body 110.

With reference to fig. 5, in order to make the connection between the cable threading device 120 and the box body 110 more secure, a hook portion 1232 may be further disposed at the edge of the slot of the connection slot 1231, and a hook end of the hook portion 1232 extends into the connection slot 1231. Referring to the installation structure diagram of the wire guide 120 and the box body 110 in fig. 5, the edge of the wire guide hole 1131 is provided with the bending part 1132, the bending part 1132 bends and extends toward the radial outer side of the wire guide hole 1131, when the connecting groove 1231 is matched with the bending part 1132, the edge of the hook part 1232 extends toward the radial inner side of the wire guide hole 1131, so that the edge of the hook part 1232 and the edge of the bending part 1132 can be hooked with each other to avoid axial movement of the wire guide 120 relative to the wire guide hole 1131 along the wire guide 120.

It is understood that, in the present invention, the structure of the connecting portion 123 is not limited to the connecting groove 1231, and may be other structures according to actual needs, for example, the connecting portion 123 may be a plurality of mounting pieces formed on the surface of the mounting portion 121, and the plurality of mounting pieces may be arranged at intervals in the circumferential direction of the wire guide, and the mounting pieces may be fixed on the box body 110 by fasteners.

The embodiment of the utility model also provides an air conditioner, which can be a central air conditioner or a type of air conditioner.

The air conditioner can comprise an air conditioner inner unit and an air conditioner outer unit, wherein the electric control box 100 in the above embodiment is arranged in the air conditioner outer unit.

The indoor air conditioner is arranged indoors, the outdoor air conditioner is arranged outdoors, the indoor air conditioner and the outdoor air conditioner can be multiple, the indoor air conditioners can be arranged in the same indoor space or can be arranged in different indoor spaces, the outdoor air conditioners can be provided with the electric control box 100 to control different outdoor air conditioners respectively, communication can be carried out between different outdoor air conditioners, and the outdoor air conditioners are matched with each other to realize multi-host combined work.

It is to be understood that the specific structure, functional principle, etc. of the electronic control box have been described in detail above, and are not described herein again. Moreover, since the air conditioner adopts all the technical solutions in the above embodiments, at least all the beneficial effects brought by the technical solutions in the above embodiments are achieved, and are not described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (14)

1. A wire passing device is characterized by comprising a body and a wire passing through hole arranged in the body, wherein the body comprises an installation part and a wire passing part which are connected with each other, the wire passing through hole sequentially penetrates through the installation part and the wire passing part, the wire passing through hole comprises a first hole section positioned in the installation part and a second hole section positioned in the wire passing part, and the inner contour size of the first hole section is larger than that of the second hole section;

the inner wall of the second hole section is provided with a sealing part which is arranged in the second hole section in a blocking mode, the sealing part is provided with a wire passing opening capable of being opened and closed elastically, the wire passing opening is used for accommodating a cable in the wire passing through hole to pass through, and the edge of the wire passing opening is elastically abutted to the cable.

2. The cable guide of claim 1, wherein the cable-passing portion comprises a transition section and a bearing section connected to each other, the transition section is connected to the mounting portion, the second hole section comprises a transition hole section located in the transition section and a bearing hole section located in the bearing section, an inner contour dimension of the transition hole section is gradually reduced from the mounting portion toward the cable-passing portion, and an inner contour dimension of the bearing hole section is consistent along an extending direction of the cable-passing through hole.

3. The cable guide of claim 2, wherein the seal is located in the load bore section.

4. The cable guide of claim 2, wherein the seal is located at an interface of the load bore section and the transition bore section.

5. The cable guide of claim 2, wherein the seal is located in the transition hole section.

6. The wire passing device according to any one of claims 1 to 5, wherein the sealing portion comprises a plurality of sealing flaps having elasticity, the plurality of sealing flaps collectively enclosing the wire passing opening.

7. The cable guide of claim 6, wherein a plurality of the sealing lobes collectively enclose the cross-shaped cable-passing opening.

8. The string passing device according to claim 6, wherein when the string passing opening is in a free state, the edge shapes of the adjacent sealing flaps are matched with each other and are in contact with each other so as to jointly block the string passing opening; or,

when the wire passing opening is in a free state, a gap is formed between the edges of the adjacent sealing flaps.

9. The wire guide of any one of claims 1-5, wherein the outer surface of the mounting portion is provided with a connecting portion configured to be connectable to an edge of a wire guide hole on an electronic control box.

10. The cable guide of claim 9, wherein the connecting portion is a connecting groove opened on an outer surface of the mounting portion, the connecting groove extending in a circumferential direction of the mounting portion to form an annular groove.

11. The thread passing device as claimed in claim 10, wherein the edge of the notch of the connecting groove has a hook portion, and a hook end of the hook portion extends into the connecting groove.

12. An electronic control box, characterized by comprising a box body and a wire guide according to any one of claims 1 to 11, wherein the wire guide is arranged on the box body.

13. An electrical control box according to claim 12, wherein the box is a closed box.

14. An air conditioner characterized by comprising the electric control box according to claim 13.

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