CN108800346A - Cable-through hole sealing structure, encapsulating method and air conditioner - Google Patents

Abstract

The invention discloses a kind of cable-through hole sealing structure, encapsulating method and air conditioners, are related to air-conditioning technical field.The cable-through hole sealing structure includes hot melt adhesive obturator and the shell with cable-through hole, and hot melt adhesive obturator is filled in the cable-through hole of shell.Cable-through hole encapsulating method includes wearing step, and the conducting wire to be worn for being provided with hot melt adhesive obturator is arranged in cable-through hole；Sealing step, hot melt adhesive obturator at cable-through hole is heated, make its expansion melting, seal the gap between conducting wire and cable-through hole to be worn, the cable-through hole design of Sealing Structure is reasonable, is skillfully constructed, simply, highly practical, easy to operate, cable-through hole in air conditioner can be sealed, to improve product quality.

Description

Cable hole sealing structure, sealing method and air conditioner

technical field

The invention relates to the technical field of air conditioners, in particular to a sealing structure, a sealing method and an air conditioner for a wire hole.

Background technique

Central air conditioners are divided into two types: air-cooled units and water-cooled units. The fan refers to the direct exchange of fresh air for cooling or heating. The water machine refers to cooling or heating the heat medium water and sending it to the fan coil air-conditioning system. The cold energy is sent to the designated lot.

Large-scale water-cooled units include household water machines and modular water machines. There are heating devices inside the outdoor electric control box. In winter, snakes and other animals like to hide in the box. The plastic-sealed motor of the air conditioner is also very easy to attract a large number of ants to crawl in, resulting in The motor is damaged, and after long-term use of the air conditioning unit, a large amount of dust will enter the electric control box, resulting in a decrease in insulation performance, and in severe cases, the unit will fail. Have a certain impact on the quality of the air conditioner.

Contents of the invention

In view of this, the purpose of the present invention is to propose a sealing structure for wire holes, which can improve the phenomenon of insects such as snakes and ants drilling into existing air conditioners. The sealing structure for wire holes provided by the invention is reasonable in design and clever in conception , Simple, practical, easy to operate, can seal the wire hole in the air conditioner, and improve the quality of the product.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A wire hole sealing structure includes a hot-melt adhesive filling body and a housing with a wire-passing hole, and the hot-melt adhesive filling body is filled in the wire-passing hole of the housing.

Further, the sealing structure of the wire passage hole further includes a wire, the wire includes a piercing section matched with the wire passage hole, the hot melt adhesive filling body is sleeved on the piercing section, and forms a closed body , the closing body is clamped in the wire passing hole.

Further, the hot-melt adhesive filler is a hot-melt adhesive tape.

Further, the hot melt adhesive filler is a thermoplastic tape.

Compared with the prior art, the cable hole sealing structure of the present invention has the following advantages:

The cable hole sealing structure of the present invention has an ingenious and reasonable design, a simple structure, seals the cable hole, effectively realizes insect-proof, ant-proof and dust-proof effects, and has strong practicability.

Another object of the present invention is to provide a method for sealing wire holes, which has simple process and convenient operation, and has the advantages of the above-mentioned wire hole sealing structure.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A method for sealing wire holes, comprising the steps of:

Threading step: set the wire to be threaded with the hot melt adhesive filler in the wire hole;

Sealing step: heating the hot melt adhesive filling body at the wire passing hole to make it expand and melt, and seal the gap between the wire to be threaded and the wire passing hole.

Further, before the threading step, a preparatory step is included: determining the threading position of the wire to be threaded at the wire hole and making a mark.

Further, the preparation step also includes: using a hot melt adhesive filler to wrap around the marked piercing position, and wrapping until the external dimensions match the size of the wire hole to form a closed body;

Pass one end of the wire to be threaded through the wire hole so that the closing body matches the wire hole.

Further, the preparation step also includes: the wire to be threaded includes a threaded end, and the threaded end is passed through the wire hole, so that the marked threading position is located outside the wire hole;

Use hot-melt adhesive filler to wrap around the marked penetration position, and wrap until the outer dimension matches the size of the cable hole.

Further, after the sealing step, a cooling and fixing step is also included: after the hot-melt adhesive filling body is cooled and hardened, a fixing sleeve is used to fixedly connect the wire to the housing.

Compared with the prior art, the cable hole sealing method of the present invention has the following advantages:

The process is simple, the operation is convenient, the sealing effect is good, and the appearance after sealing is beautiful, which improves the product quality to a certain extent.

Another object of the present invention is to provide an air conditioner which has the advantages of the sealing structure of the cable passage hole.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

An air conditioner, comprising a wire hole sealing structure.

Compared with the prior art, the air conditioner of the present invention has the following advantages:

The sealing effect is good and the practicability is strong, and the situation of snakes, ants and other insects crawling into the unit is better improved, and the safety and reliability of the air conditioner are improved.

The advantages of the air conditioner and the sealing structure of the wire hole mentioned above are the same as those of the prior art, and will not be repeated here.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of a sealing structure for a wire hole provided in Embodiment 1 of the present invention;

Fig. 2 is a schematic structural view of the fixed sleeve in Fig. 1;

Fig. 3 is a sectional view of the fixing sleeve.

Explanation of reference signs:

Icons: 1-sealing structure of wire hole, 2-housing, 3-wire hole, 4-wire, 5-electric control component, 6-hot melt adhesive filler, 7-fixing sleeve, 8-fixing part, 9 - step hole, 10 - relief part, 11 - wire passing part.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Example 1

FIG. 1 is a schematic diagram of a cable hole sealing structure 1 , please refer to FIG. 1 .

The wire hole sealing structure 1 is applied in the air conditioner, and the wire hole 3 in the air conditioner is sealed to prevent snakes, ants and other animals from climbing into the unit, and at the same time, it also improves the gap for a large amount of dust to pass through the wire hole 3 into the unit to improve the safety and service life of the unit.

Specifically, the housing 2 is provided with a wire-passing hole 3, and the wire 4 passes through the wire-passing hole 3, and is connected with the circuit board or the electric control component 5 in the housing 2. Since the wire 4 and the wire-passing hole 3 There is a certain gap between them, the gap is larger at some positions of the air conditioner, and the gap is smaller at some positions. In short, there will be a gap between the wire hole 3 and the wire 4.

For example: the electric control box in the air conditioner, the wire hole 3 opened on the shell 2 of the electric control box, there is a large gap between the wire 4 and the wire hole 3, and there is a heating device inside the electric control box. For large units such as household water machines and modular water machines, they are installed outdoors. In winter, the interior of the electric control box is warm, and animals such as snakes like to crawl in, causing potential safety hazards for the unit, and even causing the unit to fail.

The plastic-encapsulated motor of the air conditioner has a wire hole 3 on the motor housing 2, and a circuit board is arranged inside the motor, and the lead wire is connected to the circuit board through the wire hole 3. For small gaps, because the circuit board contains rosin-like substances, rosin is a smell that ants like, which attracts a large number of ants to crawl in through the gaps, which is easy to cause damage to the motor, and even cause the motor to fail.

There is more or less dust in the use environment of the air conditioner, and the airflow during the random group operation of the dust enters the electric control box, resulting in an increase in the pollution level of electrical components and a decrease in insulation performance. When the dust accumulates to a certain extent, it will cause Insulation failure between live devices inside the electric control box.

In view of the above problems, after analysis, it is all caused by the gap between the wire hole 3 and the connecting wire 4. Therefore, the wire hole sealing structure 1 uses a hot melt adhesive filler 6 to seal the above gap, and the hot melt The glue filling body 6 is filled in the wire passing hole 3 .

Hot melt adhesive is a kind of plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. And it has the advantages of high added value, high bonding strength and fast speed.

In this embodiment, the hot-melt adhesive filler 6 is a hot-melt adhesive tape or a thermoplastic adhesive tape. It can be thermally melted and slightly expanded by heating, and the molten liquid fills the gap, thereby sealing the wire hole 3 .

Specifically, the wire hole sealing structure 1 includes a hot melt adhesive filling body 6, a housing 2, a wire 4 and a fixing sleeve 7, as shown in FIG. 1 .

The housing 2 is provided with a through wire hole 3 for passing the wire 4 to connect the electrical components inside the housing 2 with the electrical components outside the housing 2 . Wherein, the wire 4 includes a piercing section, the piercing section refers to the wire section corresponding to the wire passing hole 3 after the wire 4 passes through the wire passing hole 3 and is connected to the electrical device, and the piercing section is just located at the wire passing hole 3 , the hot melt adhesive filling body 6 is sleeved on the piercing section, and forms a closed body with the piercing section, and then the closed body is clamped and fixed with the wire passing hole 3 .

According to the characteristics of the hot-melt adhesive, the fixing method can be heated, that is, after the shell 2 and the wire 4 are assembled through the hot-melt adhesive filling body 6, the hot-melt adhesive filling body 6 is heated, and the hot-melt adhesive tape will be melted. Slight expansion, the melted and liquefied sol will fill the gap between the wire 4 and the housing 2, and the gap between the wire hole 3 and the wire 4 can be completely sealed after the sol is cooled and hardened, and the sealing performance is good and firm ,easy to use.

Optionally, the fixing sleeve 7 is passed through the wire 4, and the wire 4 is fixedly connected to the housing 2 at the hot-melt tape, which ensures the firmness of later use and improves the safety of the unit.

FIG. 2 is a schematic structural view of the fixing sleeve 7 , and FIG. 3 is a cross-sectional view of the fixing sleeve 7 , please refer to FIG. 2 and FIG. 3 .

The fixed sleeve 7 is an annular cover structure, one side of which is provided with a stepped hole 9, and the outer periphery of the fixed sleeve 7 is a fixed portion 8, wherein the stepped hole 9 includes a relief portion 10 and a wire passing portion 11, and the relief portion 10 It is a groove structure, used for cooperating with the hot-melt adhesive after hot-melt hardening, and a through hole is opened at the groove bottom of the groove, and the through hole is a wire passing part 11 for passing the wire 4 through.

Optionally, the aperture of the abdication part 10 is larger than the aperture of the wire passing part 11, and the aperture of the wire passing part 11 is slightly larger than the diameter of the wire 4, as long as the wire 4 just passes through the wire passing part 11, so that The passing section of the wire 4 cooperates with the wire passing portion 11 , and the hot melt adhesive filling body 6 cooperates with the relief portion 10 .

Optionally, the fixing portion 8 is arranged in the circumferential direction, and the fixing portion 8 is provided with a plurality of fixing holes at intervals, and the casing 2 is also provided with a plurality of threaded holes correspondingly, and the positions of the threaded holes correspond to the positions of the fixing holes. 7 is installed on the wire 4, and after it is installed in place, the fixing part 8 of the fixing sleeve 7 is attached to the housing 2, and the fixing hole opened on the fixing part 8 corresponds to the threaded hole on the housing 2, and the connecting piece is used to pass through Set in the fixing hole and the threaded hole, the fixing sleeve 7 is fixedly connected with the housing 2 .

It can be understood that, in addition to the above-mentioned ring structure, the fixing sleeve 7 can also be a rectangular structure, an elliptical structure, etc., as long as the passing section of the wire 4 can be relatively fixed to the housing 2, it is not easy to loosen during later use. That's it. Of course, the fixed sleeve 7 can also be a half-ring structure that is fastened to each other. In the use state, the two half-rings are fastened and connected to each other. Fixed connection.

The beneficial effects of the wire hole sealing structure 1 provided in Embodiment 1 of the present invention are:

The design is ingenious and reasonable, the structure is simple, the operation is convenient, the sealing effect is good, the protection level is high, and the effect of preventing insects, termites and dust can be realized. The connection between the wire 4 and the housing 2 is strengthened through the fixing sleeve 7, which strengthens the stability of the wire 4 at the wire hole 3, and avoids damage caused by pulling the terminals at both ends of the wire 4. The assembly is simple and convenient, the manufacturing process is economical, and the appearance is beautiful. ,firm.

Example 2

Embodiment 2 of the present invention provides an electric control box structure, which includes an electric control box body, an electric control component 5 and the cable hole sealing structure 1 provided in Embodiment 1.

The wire hole sealing structure 1 includes a housing 2, a wire 4, a hot-melt adhesive filling body 6 and a fixing sleeve 7. In this embodiment, the electric control box is the above-mentioned housing 2, and a wire passage is provided on the electric control box. The hole 3 and the electric control component 5 are arranged inside the electric control box, and the wire 4 passes through the wire hole 3 and is electrically connected with the electric control component 5 .

The gap between the wire 4 and the wire-passing hole 3 is sealed by the hot-melt adhesive filler 6, which effectively prevents snakes, insects and other animals from climbing into the electric control box through the wire-passing hole 3, and improves the safety performance and reliability of the unit. performance.

Example 3

Embodiment 3 of the present invention provides an air conditioner plastic-encapsulated motor, including a motor housing, a circuit board, and the cable hole sealing structure 1 provided in Embodiment 1. The specific description is as follows:

The wire hole sealing structure 1 includes the housing 2, the lead wire, the hot melt adhesive filler 6 and the fixing sleeve 7. The motor housing is the housing 2 in the wire hole sealing structure 1. The motor housing is provided with a The wire hole 3, the circuit board is arranged in the motor casing, and the lead wires pass through the wire hole 3 and are electrically connected to the circuit board.

The gap between the lead-out line and the wire-passing hole 3 is sealed by the hot-melt adhesive filler 6, which can effectively prevent ants and the like from climbing into the motor through the wire-passing hole 3, improve the safety of the motor, and make the motor not easy to be damaged by a large number of ants and other insects. class and cause damage.

Example 4

Embodiment 4 of the present invention provides an air conditioner, including the cable hole sealing structure 1 provided in Embodiment 1, which is specifically described as follows:

In addition to the electric control box provided by the above-mentioned embodiment 2 and the plastic-sealed motor provided by embodiment 3, the air conditioner also has more wire holes 3, and there is dust in the environment of the air conditioner. When the air conditioner is in use, the dust follows The random airflow enters the electric control box of the unit, which will easily lead to an increase in the pollution level of electrical components, thereby reducing the insulation performance. The air conditioner is equipped with a sealing structure 1 for wire holes, which can reduce the probability of dust entering the unit, which is beneficial Improve the quality of air conditioners.

Example 5

Embodiment 5 of the present invention provides a method for sealing wire holes, including the following steps:

Preparatory steps: Determine the threading position of the wire to be threaded at the wire hole 3, and mark it.

Threading step: clamp the wire 4 to be threaded with the hot melt adhesive filler 6 in the wire hole 3 .

Sealing step: heating the hot melt adhesive filling body 6 at the wire passing hole 3 to make it expand and melt, and seal the gap between the wire 4 to be threaded and the wire passing hole 3 .

Cooling and fixing step: after the hot melt adhesive filling body 6 is cooled and hardened, the wire 4 is fixedly connected to the housing 2 by using the fixing sleeve 7 .

Optionally, the preparation step includes disposing the hot-melt adhesive filling body 6 on the threading position of the wire 4, and passing it through the wire hole 3. The specific operations are divided into the following two ways:

The first method: first wrap the hot-melt adhesive filling body 6 on the marked penetration position, and wrap it until its external size matches the size of the wire passing hole 3, so as to form a closed body.

Then, one end of the wire 4 to be threaded is inserted into the wire passing hole 3 , and then the threading step is performed to make the closing body cooperate with the wire passing hole 3 .

The second method: first pass the threading end of the wire 4 to be threaded through the threading hole 3 so that the marked threading position is located outside the threading hole 3 .

Then, the hot-melt adhesive filling body 6 is used to wrap around the marked piercing position until the outer dimension matches the size of the wire passing hole 3 , and then the piercing step is performed.

In short, use the hot melt adhesive filling body 6 to cover the wire 4, and then engage with the wire passing hole 3, and heat the hot melt adhesive filling body 6 evenly to make it expand slightly after being melted, and the melted and liquefied filling body will pass through The gap between the wire hole 3 and the wire 4 is sealed, and after cooling, the wire 4 and the housing 2 are fixed through the fixing sleeve 7 .

Optionally, a hair dryer can be used for uniform heating, the temperature of the hair dryer is adjusted between 30°-45°, and the hot-melt adhesive filler 6 is a hot-melt adhesive tape.

The method for sealing the wire-passing hole 3 provided in this embodiment is simple in process, easy to operate, good in sealing effect, high in protection level, better in preventing insects, termites and dust, and has strong practicability.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A wire hole sealing structure, characterized in that it comprises a hot melt adhesive filler (6) and a housing (2) with a wire hole (3), the hot melt adhesive filler (6) is filled in The wire passing hole (3) of the housing (2). 2. The wire hole sealing structure according to claim 1, characterized in that, the wire hole sealing structure (1) also includes a wire (4), and the wire (4) includes a wire wire (4) that is compatible with the wire hole ( 3) A matching piercing section, the hot melt adhesive filling body (6) is sleeved on the piercing section to form a closed body, and the closed body is clamped in the wire passing hole (3). 3. The cable hole sealing structure according to claim 1, characterized in that, the hot-melt adhesive filler (6) is a hot-melt adhesive tape. 4. The cable hole sealing structure according to claim 1, characterized in that, the hot melt adhesive filler (6) is a thermoplastic adhesive tape. 5. A method for sealing wire holes, comprising the following steps: Threading step: clamp the wire (4) to be threaded with the hot melt adhesive filler (6) in the wire hole (3); Sealing step: heating the hot melt adhesive filler (6) at the wire passing hole (3) to make it expand and melt, and seal the gap between the wire to be threaded (4) and the wire passing hole (3). 6. The wire hole sealing method according to claim 5, characterized in that, before the threading step, a preparatory step is also included: determining the threading time of the wire (4) to be threaded at the wire hole (3) Set the location and mark it. 7. The method for sealing wire holes according to claim 6, characterized in that the preparation step also includes: using hot melt adhesive filler (6) to wrap around the marked piercing position, and wrapping until the external dimension matches the dimension of the wire hole (3) to form a closed body; Pass one end of the wire (4) to be threaded through the wire hole (3), so that the closing body matches the wire hole (3). 8. The method for sealing wire holes according to claim 6, characterized in that, the preparation step further includes: the wire (4) to be pierced includes a penetration end, and the penetration end is passed through the wire hole (3 ), so that the marked threading position is located outside the thread hole (3); Hot-melt adhesive filler (6) is used to wrap around the marked piercing position, and wrap until the external dimension matches the size of the wire passing hole (3). 9. The method for sealing wire holes according to any one of claims 5-8, characterized in that, after the sealing step, a cooling and fixing step is also included: after the hot melt adhesive filling body (6) is cooled and hardened, the fixing method is used to The sleeve (7) fixedly connects the wire (4) to the housing (2). 10. An air conditioner, characterized in that it comprises the cable hole sealing structure (1) according to any one of claims 1-4.