CN107154538B

CN107154538B - Connection structure, cable assembly and connection method of cable assembly

Info

Publication number: CN107154538B
Application number: CN201710301413.7A
Authority: CN
Inventors: 于永丞; 雷卫东
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2017-05-02
Filing date: 2017-05-02
Publication date: 2023-06-06
Anticipated expiration: 2037-05-02
Also published as: CN107154538A

Abstract

The invention provides a connecting structure, a cable assembly and a connecting method of the cable assembly, wherein the connecting structure comprises the following steps: the hot melt is provided with an accommodating space for accommodating a plurality of cables, and conductive ends of all the cables in the accommodating space are connected together after the hot melt is used for self-heating. The invention solves the problem of poor connection stability between cables in the prior art.

Description

Connection structure, cable assembly and connection method of cable assembly

Technical Field

The invention relates to the technical field of welding, in particular to a connecting structure, a cable assembly and a connecting method of the cable assembly.

Background

The conventional connection mode of the lead-out wire assembly and the enameled wire is to use tin soldering for welding, and the connection method has the possibility of cold joint at the connection position, so that soldering tin is easy to fall off, the connection failure of the lead-out wire assembly and the enameled wire is caused, in addition, a pointed foot structure can appear after the soldering tin at the connection position is solidified, and the pointed foot structure is easy to puncture the insulation sheath of a cable or the sheath of an insulation sleeve, so that the cable is leaked, and potential use safety hazards exist. Therefore, the connection stability between existing cables is poor.

Disclosure of Invention

The invention mainly aims to provide a connecting structure, a cable assembly and a connecting method of the cable assembly, so as to solve the problem of poor connection stability between cables in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a connection structure comprising: the hot melt is provided with an accommodating space for accommodating a plurality of cables, and conductive ends of all the cables in the accommodating space are connected together after the hot melt is used for self-heating.

Further, the hot melt comprises a first hot melt body, the first hot melt body is provided with a first accommodating cavity and a first opening, the first opening is communicated with the first accommodating cavity, and the first accommodating cavity is an accommodating space.

Further, the first hot melt is in a tubular structure.

Further, the hot melt comprises at least two first hot melts in a sheet shape, and each first hot melt is sequentially connected to form a containing space.

Further, the first receiving cavity includes a channel section and a carrier section, and the first opening communicates with the carrier section through the channel section.

Further, along the extending direction of the channel section, the areas of the sections of the channel section are equal.

Further, along the extending direction of the bearing section, the areas of all the sections of the bearing section are equal, and the sectional area of the bearing section is smaller than that of the channel section.

Further, the cross-sectional area of the channel section is smaller than the area of the largest cross-section of the carrier section.

Further, the bearing section is spherical or elliptic.

Further, the cross section of the channel section and/or the carrier section is one of circular, elliptical or polygonal.

Further, the sectional area of the first accommodation chamber gradually increases in a direction away from the first opening.

Further, the inner wall surface of the first hot melt is a smooth surface.

Further, the hot melt further comprises a second hot melt, the second hot melt is provided with a second accommodating cavity and a second opening, the first hot melt is arranged in the second accommodating cavity, and the first opening is communicated with the second opening.

Further, the second hot melt comprises a first support section and a second support section, the first support section is connected with the second support section, wherein the second opening is positioned at one end of the first support section far away from the second support section, and the first opening is positioned in the second opening.

Further, the first support section is tubular, and the second support section is spherical or ellipsoidal.

Further, the outer wall surface of the first hot melt is in fit with the inner wall surface of the second hot melt.

Further, the outer wall surface of the second hot melt is a smooth surface.

Further, the first and second hot melts are made of a deformable conductive material.

Further, the electrical conductivity of the first hot melt is greater than the electrical conductivity of the second hot melt.

Further, the melting point of the first hot melt is less than the melting point of the first hot melt.

According to another aspect of the present invention, there is provided a cable assembly comprising: a plurality of cables; and one conductive end of each cable is connected through the connecting structure, and the connecting structure is the connecting structure.

Further, the cable assembly further comprises an insulating sleeve sleeved outside the connecting structure.

Further, the plurality of cables includes a lead-out wire and an enamel wire.

According to another aspect of the present invention, there is provided a connection method of a cable assembly for connecting the cable assembly, including: step S1, placing one conductive end of each cable in a plurality of cables into a containing space of a hot melt of a connecting structure; and S2, heating the connection structure until the hot melt of the connection structure is converted from a stable state at normal temperature to a molten state so that the conductive ends are connected through the connection structure.

Further, the hot melt includes a first hot melt, and each conductive end is placed into a first receiving cavity of the first hot melt through a first opening of the first hot melt.

Further, before step S1, the method further includes: step S0, connecting the conductive terminal knobs to form connecting ends.

Further, between step S1 and step S2, further includes: and S11, applying an external force to the connecting structure to deform the first hot melt.

Further, the hot melt further comprises a second hot melt sleeved outside the first hot melt, and a clamping force is applied to the first supporting section of the second hot melt so as to deform the second opening and the first opening of the connecting structure to clamp the plurality of cables.

Further, after step S2, the method further includes: and S3, sleeving the insulating sleeve on the outer side of the melted connecting structure.

By applying the technical scheme of the invention, as the connecting structure comprises the hot melt with the accommodating space for accommodating the plurality of cables, the conductive ends of all the cables in the accommodating space are connected together after the hot melt is hot melted. Like this, the hot melt is heated and is connected into an organic wholely with the conducting end of each cable after melting, and the hot melt can wrap up each conducting end effectively moreover, avoids the conducting end to expose, has improved the connection stability between each cable, and the periphery of hot melt after the cooling can not form sharp foot structure moreover, has avoided the insulating crust or the insulating boot of puncture cable, has improved the safety in utilization of cable.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic structural view of a connection structure according to an alternative embodiment of the present invention;

FIG. 2 shows a schematic front cross-sectional view of the connection structure of FIG. 1;

fig. 3 shows a schematic view of a connection state of a cable assembly with a connection structure according to an alternative embodiment of the present invention.

Wherein the above figures include the following reference numerals:

1. a cable; 13. a conductive terminal; 2. a connection structure; 3. an insulating sleeve; 10. a first hot melt; 11. a first accommodation chamber; 111. a channel section; 112. a load-bearing section; 12. a first opening; 20. a second hot melt; 21. a second accommodation chamber; 22. a second opening; 23. a first support section; 24. and a second support section.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order to solve the problem of poor connection stability between cables in the prior art, the present invention provides a connection structure, a cable assembly and a connection method of the cable assembly, as shown in fig. 3, the cable assembly includes a plurality of cables 1 and a connection structure 2, one conductive end 13 of each cable 1 is connected through the connection structure 2, and the connection structure 2 is the connection structure described above and below.

As shown in fig. 3, in order to improve the working stability of the cable assembly and avoid the occurrence of the leakage phenomenon, the cable assembly further includes an insulation sleeve 3, and the insulation sleeve 3 is sleeved on the outer side of the connection structure 2.

Optionally, the plurality of cables 1 comprises outgoing wires and enamelled wires.

The connection structure according to the present invention includes a hot melt having a receiving space for receiving a plurality of cables 1, and the hot melt itself thermally melts and connects conductive ends 13 of all the cables 1 located in the receiving space.

Since the connection structure includes the hot melt having the accommodation space for accommodating the plurality of cables 1, the hot melt itself thermally melts and connects the conductive ends 13 of all the cables 1 located in the accommodation space together. Like this, the hot melt is heated and is melted the back and is connected into an organic wholely with the conducting end 13 of each cable 1, and the hot melt can wrap up each conducting end 13 effectively moreover, avoids conducting end 13 to expose, has improved the connection stability between each cable 1, and the periphery of hot melt after the cooling can not form sharp foot structure moreover, has avoided piercing insulating crust or insulating sleeve 3 of cable 1, has improved the safety in utilization of cable 1.

In an alternative embodiment of the invention shown in fig. 1 and 2, the hot melt comprises a first hot melt 10, the first hot melt 10 having a first receiving cavity 11 and a first opening 12, the first opening 12 being in communication with the first receiving cavity 11, the first receiving cavity 11 being a receiving space. Like this, place the conducting end 13 of each cable 1 in holding the chamber 11 through first opening 12, avoided effectively that conducting end 13 is exposed by first holding the chamber 11, after the melting of first hot melt 10, first opening 12 closes to make the conducting end 13 of each cable 1 can be reliably wrapped up by first hot melt 10, and then improved the connection stability of each conducting end 13, guaranteed the operational reliability of cable subassembly.

In an alternative embodiment, not shown, the first hot melt 10 is of tubular construction. The use of the first hot melt 10 in a tubular configuration facilitates the manufacturing of the first hot melt 10, thereby reducing the overall cost of the cable assembly.

In another alternative embodiment, not shown, the hot melt comprises at least two first hot melts 10 in the form of sheets, each first hot melt 10 being connected in turn to form a receiving space. In this way, by providing the number of the first hot melts 10 in the form of sheets, the size of the accommodating space can be controlled, so that the accommodating space can be adapted to accommodate different numbers of conductive terminals 13.

As shown in fig. 2, the first accommodation chamber 11 includes a passage section 111 and a bearing section 112, and the first opening 12 communicates with the bearing section 112 through the passage section 111. The arrangement of the channel section 111 plays a guiding role for each cable 1, and an operator can hold one end of the cable 1 along the channel section 111 to conveniently place the other end of the cable 1 to the carrying section 112, and the carrying section 112 provides a placing space for the conductive end 13 of each cable 1.

Alternatively, to facilitate placement of multiple cables 1, the conductive ends 13 of each cable 1 are twisted to form a connection terminal, and an operator need only place the connection terminal into the carrier section 112 through the channel section 111.

As shown in fig. 2, in order to facilitate the manufacture of the first hot melt 10 and to provide a stable guiding effect to the channel section 111, the area of each section of the channel section 111 is equal along the extending direction of the channel section 111.

As shown in fig. 2, along the extending direction of the carrying segment 112, the areas of the respective sections of the carrying segment 112 are equal, and the sectional area of the carrying segment 112 is smaller than the sectional area of the channel segment 111. In this way, a step structure is formed at the connection position of the channel section 111 and the bearing section 112, so that the connection end positioned in the bearing section 112 can be effectively prevented from being separated from the channel section 111, and the stability of each cable 1 positioned in the bearing section 112 is improved.

Alternatively, the cross-sectional area of the channel section 111 is smaller than the area of the largest cross-section of the carrier section 112. This further ensures that the carrier section 112 has sufficient space for placement.

Alternatively, in order to increase the structural diversity of the first hotmelt 10, a different number of cables 1 and connecting ends of different shapes can be accommodated, the carrier section 112 being spherical or ellipsoidal. In the alternative embodiment of fig. 2 of the present invention, the carrier section 112 is spherical.

Alternatively, in order to increase the structural diversity of the first hot melt 10, a different number of cables 1 and connecting ends of different shapes can be accommodated, the cross section of the channel section 111 and/or the carrier section 112 being one of circular, elliptical or polygonal. In an alternative embodiment of the invention shown in fig. 2, the channel section 111 and the carrier section 112 are circular in cross-section.

In another alternative embodiment of the invention, not shown, the cross-sectional area of the first receiving chamber 11 increases gradually in a direction away from the first opening 12. In this way, the first housing chamber 11 simultaneously has a guiding effect on the plurality of cables 1 and ensures the reliability of the conductive terminals 13 housing the plurality of cables 1, and the first opening 12 also has a stopping effect on the connection terminals formed by the plurality of conductive terminals 13.

Alternatively, in order to further reduce the resistance to movement received by the conductive end 13 of the cable 1 within the first receiving cavity 11, the inner wall surface of the first hot melt 10 is a smooth surface.

As shown in fig. 1 and 2, the hot melt further includes a second hot melt 20, the second hot melt 20 has a second receiving cavity 21 and a second opening 22, the first hot melt 10 is disposed in the second receiving cavity 21, and the first opening 12 communicates with the second opening 22. In this way, the second hot melt 20 plays a role in protecting the first hot melt 10, ensures the stability of the melting process of the first hot melt 10, and improves the connection effect of the conductive terminals 13 of each cable 1.

As shown in fig. 2, the second hot melt 20 includes a first support section 23 and a second support section 24, the first support section 23 and the second support section 24 being connected, wherein the second opening 22 is located at an end of the first support section 23 remote from the second support section 24, and the first opening 12 is located within the second opening 22. The first opening 12 is located in the second opening 22, so that when the first hot melt 10 is melted, the molten first hot melt 10 is prevented from overflowing from the second opening 22, and the connection stability of the conductive ends 13 of the cables 1 is ensured.

Alternatively, the first support section 23 is tubular and the second support section 24 is spherical or ellipsoidal. In this way, the structural shape of the second hot melt 20 can be adapted to the first hot melt 10.

Optionally, the outer wall surface of the first hot melt 10 is adapted to fit the inner wall surface of the second hot melt 20. Therefore, the whole structure of the connecting structure is more reasonable, and the influence of the overlarge volume of the connecting structure on the operation effect of operators on the connecting structure is avoided.

Alternatively, the outer wall surface of the second hot melt 20 is a smooth surface. Thus, the occurrence of burrs or spikes on the outer wall surface of the second hot melt 20 to scratch the operator is avoided, and the use safety of the connection structure is improved.

Alternatively, the first hot melt 10 and the second hot melt 20 are made of deformable conductive materials. In this way, by applying a force to the connection structure, the structural shapes of the first accommodation chamber 11 and the second accommodation chamber 21 can be effectively changed, so that the first hot melt 10 can be caused to play a clamping role for the cable 1.

Preferably, the thickness of the first hot melt 10 and/or the second hot melt 20 is uniform.

Optionally, the electrical conductivity of the first hot melt 10 is greater than the electrical conductivity of the second hot melt 20.

Alternatively, the melting point of the first hot melt 10 is less than the melting point of the first hot melt 10.

The invention also provides a connection method of the cable assembly, which is used for connecting the cable assembly and comprises the following steps: step S1, placing one conductive end 13 of each cable 1 in a plurality of cables 1 into a containing space of a hot melt of a connecting structure 2; step S2, heating the connection structure 2 until the hot melt of the connection structure 2 is converted from a stable state at normal temperature to a molten state so that the conductive terminals 13 are connected through the connection structure 2.

Alternatively, the hot melt comprises a first hot melt 10, each conductive end 13 being placed into a first receiving cavity 11 of the first hot melt 10 through a first opening 12 of the first hot melt 10.

Optionally, step S0 is further included before step S1, where the conductive terminals 13 are twisted to form connection terminals.

Optionally, between step S1 and step S2, further includes: in step S11, an external force is applied to the connection structure 2 to deform the first hot melt 10.

Optionally, the hot melt further comprises a second hot melt 20 sleeved outside the first hot melt 10, and a clamping force is applied to the first support section 23 of the second hot melt 20 to deform the second opening 22 and the first opening 12 of the connection structure 2 to clamp the plurality of cables 1.

Optionally, after step S2, a step S3 is further included of sleeving the insulation sleeve 3 on the outer side of the melted connection structure 2.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection structure, characterized by comprising: the hot melt is provided with a containing space for containing a plurality of cables (1), and conductive ends (13) of all the cables (1) positioned in the containing space are connected together after the hot melt is used for self-heating; the hot melt comprises a first hot melt body (10), the first hot melt body (10) is provided with a first accommodating cavity (11) and a first opening (12), the first opening (12) is communicated with the first accommodating cavity (11), and the first accommodating cavity (11) is the accommodating space; the hot melt further comprises a second hot melt (20), the second hot melt (20) is provided with a second accommodating cavity (21) and a second opening (22), the first hot melt (10) is arranged in the second accommodating cavity (21), and the first opening (12) is communicated with the second opening (22); the second hot melt (20) comprises a first supporting section (23) and a second supporting section (24), the first supporting section (23) is connected with the second supporting section (24), wherein the second opening (22) is positioned at one end of the first supporting section (23) far away from the second supporting section (24), and the first opening (12) is positioned in the second opening (22), so that the first hot melt (10) in a molten state is prevented from overflowing from the second opening (22) when the first hot melt (10) is melted; the first support section (23) is tubular, and the second support section (24) is spherical or ellipsoidal; -the first hot melt (10) and the second hot melt (20) are made of deformable conductive material; the outer wall surface of the first hot melt (10) is in fit with the inner wall surface of the second hot melt (20); the melting point of the first hot melt (10) is less than the melting point of the second hot melt (20); the first accommodating cavity (11) comprises a channel section (111) and a bearing section (112), and the first opening (12) is communicated with the bearing section (112) through the channel section (111); along the extension direction of the channel section (111), the areas of the sections of the channel section (111) are equal; and the cross-sectional area of the bearing section (112) is larger than that of the channel section (111), a step structure is formed at the joint of the channel section (111) and the bearing section (112), and the connecting end of the welded cable in the bearing section (112) is prevented from falling out of the channel section (111).

2. The connection according to claim 1, characterized in that the first hot melt (10) is of tubular construction.

3. The connection according to claim 1, characterized in that the carrier section (112) is spherical or ellipsoidal.

4. The connection according to claim 1, characterized in that the cross section of the channel section (111) and/or the carrier section (112) is one of circular, elliptical or polygonal.

5. The connection according to claim 1, characterized in that the inner wall surface of the first hot melt (10) is a smooth surface.

6. The connection according to claim 1, characterized in that the outer wall surface of the second hot melt (20) is a smooth surface.

7. The connection according to claim 1, characterized in that the electrical conductivity of the first hot melt (10) is greater than the electrical conductivity of the second hot melt (20).

8. A cable assembly, comprising:

a plurality of cables (1);

-a connection structure (2), one conductive end (13) of each of said cables (1) being connected by said connection structure (2), said connection structure (2) being a connection structure according to any one of claims 1 to 7.

9. The cable assembly according to claim 8, further comprising an insulation sleeve (3), the insulation sleeve (3) being sleeved outside the connection structure (2).

10. The cable assembly according to claim 8, wherein the plurality of cables (1) comprises an outgoing line and an enameled wire.

11. A method of connecting a cable assembly according to any one of claims 8 to 10, comprising:

step S1, placing one conductive end (13) of each cable (1) in a plurality of cables (1) into a containing space of a hot melt of a connecting structure (2);

and S2, heating the connecting structure (2) until the hot melt of the connecting structure (2) is converted from a stable state at normal temperature to a molten state so as to connect the conductive ends (13) through the connecting structure (2).

12. The connection method according to claim 11, characterized in that the hot melt comprises a first hot melt (10), each of the conductive ends (13) being placed into a first receiving cavity (11) of the first hot melt (10) through a first opening (12) of the first hot melt (10).

13. The connection method according to claim 11, characterized by further comprising, before said step S1:

and S0, connecting the conductive ends (13) by a knob to form a connecting end.

14. The connection method according to claim 13, characterized in that between said step S1 and said step S2 further comprises:

and S11, applying an external force to the connecting structure (2) to deform the first hot melt (10).

15. The connection method according to claim 14, characterized in that the hot melt further comprises a second hot melt (20) sleeved outside the first hot melt (10), a clamping force being applied to the first support section (23) of the second hot melt (20) to deform the second opening (22) and the first opening (12) of the connection structure (2) to clamp the plurality of cables (1).

16. The connection method according to claim 13, characterized by further comprising, after said step S2:

and S3, sleeving the insulating sleeve (3) on the outer side of the melted connecting structure (2).