WO2024255901A1 - Connecting wire harness structure and electronic device - Google Patents

Abstract

Provided are a connecting wire harness structure (100) and an electronic device (1000). The connecting wire harness structure (100) comprises one or more connecting circuit boards (10), at least two cables (20), and a stress relief structure (30); a first end (1011) and a second end (1012), which are opposite to each other, of each connecting circuit board (10) are respectively provided with at least one electrical connecting button (11, 12, 13, 14, 15, 16); the at least two cables (20) comprise at least one first cable (21) connected to at least one first electrical connecting button (11, 1101) located on the first end (1011) of the connecting circuit board (10), and at least one second cable (22) connected to at least one second electrical connecting button (12, 1201, 1202) located on the second end (1012) of the connecting circuit board (10); the stress relief structure (30) comprises a prefabricated protective housing (31) and a mounting portion (32), wherein the protective housing (31) is provided with an accommodating cavity (301) penetrating through the two opposite end of the protective housing (31), and the mounting portion (32) at least comprises a mounting main body located at the outer edge of the protective housing (31); the connecting circuit board (10) is arranged in the accommodating cavity (301), the at least one first cable (21) extends out of one end of the accommodating cavity (301), and the at least one second cable (22) extends out of the other end of the accommodating cavity (301).

Description

Connecting wiring harness structures and electronic equipment Technical Field

The present application relates to cable connecting wires, and in particular to connecting wire harness structures and electronic equipment.

Background Art

For electronic devices such as cameras, connecting harnesses are usually required to achieve signal transmission. Some electronic devices also need to rotate when working to collect images in all directions in the environment, and the connecting harness will move during the rotation process. Therefore, the connecting harness is also required to have good anti-swaying and bending performance to avoid disconnection and signal interruption of the connecting harness. In the related art, a stress relief (Strain Relief, SR) structure is usually set on the periphery of the connecting wire to protect the connecting wire when installed on the camera housing, and sealant is generally used to seal the stress relief structure with the camera housing. For this type of structure, once there is a problem with the harness or the body, the connecting harness and the camera housing need to be disassembled as a whole, and then replaced with a new connecting harness and camera housing, which will increase the difficulty and cost of maintenance.

Summary of the invention

According to an embodiment of the present application, a connection harness structure is provided, including:

One or more connecting circuit boards, each of which has at least one electrical connection key on a first end and a second end opposite to each other;

at least two cables, including at least one first cable connected to at least one first electrical connection key located on a first end of the connection circuit board, and at least one second cable connected to at least one second electrical connection key located on a second end of the connection circuit board;

The stress relief structure includes a prefabricated protective shell and a mounting portion.

The protective shell has a receiving cavity that passes through two opposite ends of the protective shell.

The mounting portion at least includes a mounting body located at the outer edge of the protective shell;

The connecting circuit board is arranged in the accommodating cavity.

The at least one first cable extends out from one end of the accommodating cavity, and the at least one second cable extends out from the other end of the accommodating cavity.

In some embodiments, the mounting portion is disposed at one end of the protective shell and is provided with a mounting portion opening communicating with the accommodating cavity.

The cable extending from one end of the accommodating cavity communicating with the opening of the mounting portion is passed through the opening of the mounting portion.

In some embodiments, the connection harness structure includes:

The flexible protective adhesive is located in the opening of the mounting portion and is sleeved on the cable passing through the opening of the mounting portion.

In some embodiments, the flexible protective colloid includes a first protective colloid and a second protective colloid;

The first protective colloid and the second protective colloid form an annular step portion, and the first protective colloid The orthographic projection on the second protective colloid falls within the surface of the second protective colloid facing the first protective colloid, and the projection area is smaller than the area of the surface of the second protective colloid facing the first protective colloid;

The protective shell and the mounting portion form an annular inner step wall at the connection between the two.

The first protective colloid is located in the opening of the mounting portion, the second protective colloid is located in the accommodating cavity, and the step portion formed by the first protective colloid and the second protective colloid is correspondingly engaged with the annular inner step wall formed by the protective shell and the mounting portion.

In some embodiments, the stress relief structure includes a circuit board fixture,

The circuit board fixing member is arranged in the accommodating cavity and is used to fix the connecting circuit board;

The connection circuit board is spaced apart from the inner wall of the protection shell; the spacing distance between the connection circuit board and the protection shell is greater than or equal to 1 mm.

In some embodiments, the circuit board fixing member is ring-shaped, and the inner wall of the circuit board fixing member is provided with opposite slots.

The connecting circuit board is clamped in the clamping slot.

In some embodiments, the circuit board fixing member is annular and has a plurality of slots spaced apart in the circumferential direction.

The plurality of card slots cooperate with a plurality of lugs on the flexible protective glue arranged in the opening of the mounting portion.

In some embodiments, the protective shell and the mounting portion are made of hard rubber material.

In some embodiments, the plurality of connection circuit boards are spaced apart from each other; and the spacing distance between each connection circuit board and an adjacent connection circuit board is greater than or equal to 1 mm.

In some embodiments, each of the connection circuit boards has a first surface and a second surface opposite to each other, and a single row or multiple rows of electrical connection keys are respectively provided on the first end and the second end opposite to each other of at least one of the first surface and the second surface;

For each of the connecting circuit boards, each of the first electrical connecting keys located on the first end of the connecting circuit board is correspondingly connected to one or more of the second electrical connecting keys located on the second end of the connecting circuit board.

In some embodiments, the mounting portion is provided with a plurality of first fixing mounting holes, and the connecting harness structure includes a plurality of fixing members respectively adapted to the plurality of first fixing mounting holes;

The connecting harness structure includes a sealing ring, which is sleeved on the periphery of the protective shell and abuts against the mounting portion;

The connection harness structure comprises at least two connectors respectively arranged at ends of the at least two cables away from the connection circuit board;

The connecting wire harness structure comprises a sealing colloid, and the sealing colloid is at least filled in the accommodating cavity to seal the connecting circuit board and the cables located in the accommodating cavity.

According to an embodiment of the present application, there is also provided an electronic device, comprising a body shell and the connecting harness structure as described above, wherein the body shell is provided with a body mounting hole, and the stress release structure is detachably mounted on the body mounting hole; wherein the protective shell is passed through the body mounting hole and extends into the body shell, and the mounting portion is against the outer surface of the body shell.

In some embodiments, the mounting portion is provided with a plurality of first fixing mounting holes, and the connecting harness structure includes The first plurality of fixing holes are respectively adapted to a plurality of fixing parts, the fuselage shell is provided with a second fixing mounting hole opposite to the first plurality of fixing mounting holes, the fixing parts are passed through the first fixing mounting holes and the second fixing mounting holes to fix the mounting part on the fuselage shell.

In some embodiments, the connecting harness structure includes a sealing ring, which is sleeved on the periphery of the protective shell and abuts between the mounting portion and the body shell.

In some embodiments, the body shell is provided with an annular receiving groove which is located at the periphery of the mounting hole and is concave toward the inner side of the body shell, and the sealing ring is provided in the annular receiving groove.

Based on the above technical solution, the above-mentioned connecting harness structure and electronic equipment, by setting the stress release structure to have a prefabricated protective shell and a mounting portion provided on the protective shell, make the stress release structure detachably installable on other structures (such as a fuselage shell). When there is a problem with the connecting harness structure or the fuselage shell, the connecting harness and the fuselage shell can be disassembled, and then only the problematic connecting harness structure or the fuselage shell needs to be replaced, which is convenient for maintenance and replacement and helps to reduce the difficulty and cost of maintenance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a connection harness structure provided in one embodiment of the present application.

FIG. 2 is a schematic diagram of a partial structure of an electronic device provided in an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a stress release structure provided in an embodiment of the present application.

FIG. 4 is a schematic diagram of an assembly of a stress release structure and a connection circuit board provided in an embodiment of the present application.

FIG. 5 is a schematic structural diagram of another connection harness structure provided in an embodiment of the present application.

FIG. 6 is a schematic diagram of a partial structure of another connecting harness structure provided in an embodiment of the present application.

FIG. 7 is an exploded view of another stress release structure of a connecting harness structure provided by an embodiment of the present application.

FIG. 8 is a schematic diagram of an assembly method for connecting a circuit board and a cable according to an embodiment of the present application.

FIG. 9 is a schematic diagram of another assembly method for connecting a circuit board and a cable provided in an embodiment of the present application.

FIG. 10 is a schematic diagram of another assembly method for connecting a circuit board and a cable provided in an embodiment of the present application.

DETAILED DESCRIPTION

Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present application. The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

The present application provides a connection harness structure and an electronic device. The connection harness structure includes at least one connection circuit board, at least two cables and a stress release structure. Each connection circuit board has corresponding electrical connection keys at two opposite ends; At least two cables are respectively connected to the electrical connection keys at opposite ends of the connecting circuit board. The stress release structure includes a prefabricated protective shell and a mounting portion provided on the protective shell, the protective shell has a housing cavity penetrating the opposite ends of the protective shell, and the mounting portion at least includes a mounting body located at the outer edge of the protective shell. The connecting circuit board is arranged in the housing cavity, at least one of the at least two cables extends from one end of the housing cavity, and the other of the at least two cables extends from the other end of the housing cavity. The above-mentioned connecting harness structure, by setting the stress release structure to have a prefabricated protective shell and a mounting portion provided on the protective shell, enables the stress release structure to be detachably mounted on other structures (such as a body shell). In this way, when there is a problem with the connecting harness structure or the body shell of an electronic device having the connecting harness structure, the connecting harness and the body shell can be disassembled, and then only the problematic connecting harness structure or the body shell needs to be replaced, which is convenient for maintenance and replacement, and helps to reduce the difficulty and cost of maintenance.

The connection harness structure and the electronic device are described in detail below with reference to FIGS. 1 to 10 .

Please refer to Figure 1, and in conjunction with Figures 2 to 10 when necessary. The connecting harness structure 100 includes at least one connecting circuit board 10, at least two cables 20 and a stress release structure 30. Each connecting circuit board 10 has corresponding electrical connection keys at opposite ends. At least two cables 20 are respectively connected to the electrical connection keys at opposite ends of the connecting circuit board 10. The stress release structure 30 includes a prefabricated protective shell 31 and a mounting portion 32, the protective shell 31 has a receiving cavity 301 that passes through the opposite ends of the protective shell 31, and the mounting portion 32 at least includes a mounting body located at the outer edge of the protective shell 31; the connecting circuit board 10 is arranged in the receiving cavity 301, at least one of the at least two cables 20 extends from one end of the receiving cavity 301, and the other cables 20 of the at least two cables 20 extend from the other end of the receiving cavity 301.

The connection circuit board 10 can be understood as a PCB board with electrical connection keys. The electrical connection keys can be understood as welding points or metal welding pads, such as the electrical connection keys 11, 12, 13, 14, 15, 16, etc. shown in Figure 8 and Figure 10. Among them, the PCB board has connection lines that respectively connect the corresponding electrical connection keys at both ends. The cable 20 is connected to the electrical connection keys at the opposite ends of the connection circuit board 10, which can be understood as the ends of the cable 20 are welded to the corresponding electrical connection keys.

The cable 20 may be a cable with a core in the middle, or may be a cable with multiple cores. The core may have an insulating layer or a sheath. The insulating layer and sheath outside the core may be a hard structure such as PVC, SR-PVC, or a flexible structure such as Teflon, PE, or elastomer.

Taking the cables located at the two ends of the connecting circuit board 10 as an example, namely the first cable 21 and the second cable 22 (such as shown in Figure 1), each wire core in the first cable 21 can be welded to the first electrical connection key located at the first end of the connecting circuit board 10, and connected to the second electrical connection key located at the second end of the connecting circuit board 10 through the connecting line inside the PCB board, and then connected to the wire cores in the second cable 22 through the second electrical connection key to realize the transmission of electrical signals.

Here, by setting the stress release structure 30 to have a prefabricated protective shell 31 and a mounting portion 32, the stress release structure 30 can be detachably installed in other structures (such as a fuselage shell). In this way, when a problem occurs in the connection harness structure 100 or the fuselage shell, the connection harness structure 100 and the fuselage shell can be disassembled, and then only the connection harness structure 100 or the fuselage shell with the problem needs to be replaced, which is convenient for repair and replacement and helps to reduce maintenance costs. Repair difficulty and cost.

Here, a connecting circuit board 10 is used in the stress release structure 30 to realize the transfer of cables at both ends, so that the cables are not limited to the insulation layer and outer sheath of hard insulation structures such as PVC, but can have more different types of options, such as cables with flexible structures such as Teflon, PE, and elastomer as the outer insulation layer or outer sheath of the wire core. It is also possible to improve various performances according to the material and structure of the cable, such as the temperature resistance, swing resistance, torsion resistance, high frequency and other characteristics of the required connection harness structure can be set as needed. Compared with the method of sealing the connection harness structure through waterproof glue, it can also solve the problem of loose bonding between the waterproof glue and the insulation layer or outer sheath of the cable.

Moreover, this method of using the connecting circuit board 10 in the middle of the connecting harness structure 100 for transfer can make it possible to set up more wire cores (i.e., lines) when the SR cross-section (the fuselage mounting hole of the fuselage shell) is constant, which is beneficial to reducing the size of the connecting harness structure 100, and is also beneficial to reducing the complexity of the waterproof design of the entire machine with the connecting harness structure 100, and reducing the design cost and size of the entire machine.

In some embodiments, the mounting portion 32 is disposed at one end of the protective shell 31, and the mounting portion 32 is provided with a mounting portion opening 3202 opposite to and connected to the accommodating cavity 301, and the cable 20 extending from one end of the accommodating cavity 301 opposite to the mounting portion opening 3202 is passed through the mounting portion opening 3202.

3 , the accommodating cavity 301 has a first accommodating cavity opening 3101 and a second accommodating cavity opening 3102 opposite to each other. The second accommodating cavity opening 3102 is connected to the mounting portion opening 3202. The cable 20 extending from the second accommodating cavity opening 3102 can pass through the mounting portion opening 3202 and then extend out of the stress release structure 30.

In some embodiments, the connection harness structure 100 includes a sealing colloid (not shown), which is at least filled in the accommodating cavity 301 to seal the connection circuit board 10 and the cable 20 located in the accommodating cavity 301. The cable 20, the connection circuit board 10 and the stress release structure 30 are waterproofly sealed in the accommodating cavity 301.

In some embodiments, the stress release structure 30 of the connecting harness structure 100 includes a flexible protective adhesive 33 .

As shown in FIG. 3 and FIG. 4 , in some embodiments, the flexible protective adhesive 33 is located in the installation portion opening 3202 and is sleeved on the cable 20 passing through the installation portion opening 3202 .

The flexible protective adhesive 33 can be firstly disposed on the cable 20 by injection molding, and then disposed in the mounting opening 3202 when the connecting circuit board 10 and the cable 20 are inserted into the accommodating cavity 301 .

In other embodiments, as shown in FIGS. 5 to 7 , the flexible protective glue 33 includes a first protective colloid 331 and a second protective colloid 332. The orthographic projection of the first protective colloid 331 on the second protective colloid 332 falls within the surface of the second protective colloid 332 facing the first protective colloid 331, and the projection area is smaller than the area of the surface of the second protective colloid 332 facing the first protective colloid 331. The first protective colloid 331 and the second protective colloid 332 form an annular step portion.

Accordingly, the size of the installation portion opening 3202 is smaller than the size of the second accommodating cavity opening 3102, and the protective shell 31 and the installation portion 32 form an annular inner step wall at the connection between the second accommodating cavity opening 3102 and the installation portion opening 3202. The first protective colloid 331 of the flexible protective glue 33 is located in the installation portion opening 3202, and the second protective colloid 331 of the flexible protective glue 33 is located in the installation portion opening 3202. The two protective colloids 332 are located in the accommodating cavity 301 . The annular step portion formed by the first protective colloid 331 and the second protective colloid 332 is correspondingly engaged with the annular inner step wall formed by the protective shell 31 and the mounting portion 32 .

In some embodiments, the protective shell 31 and the mounting portion 32 are made of hard plastic material to enhance the tensile strength of the connecting harness structure itself.

The protective shell 31 and the mounting portion 32 can be formed into an integral structure by injection molding.

In some embodiments, the cross-section of the protective shell 31 in the extension direction of the wire harness is a circular ring or a rectangular ring.

Of course, in some other embodiments, the cross-section of the protective shell 31 in the extension direction of the wire harness may also be in other shapes, such as an ellipse, a polygon or other regular or irregular ring shape.

When the cross section of the protective shell 31 in the extension direction of the wire harness is a circular ring, the protective shell 31 as a whole is an annular structure with a cylindrical cavity.

In some embodiments, the stress release structure 30 includes a circuit board fixing member 34. The circuit board fixing member 34 is disposed in the accommodating cavity 301, so that the connecting circuit board 10 can be fixed in the accommodating cavity 301 through the circuit board fixing member 34. In this way, when the sealing colloid is formed by pouring glue, no additional tools are needed to fix the connecting circuit board 10, which facilitates the pouring of glue and can improve the sealing effect of the formed sealing colloid.

The circuit board fixing member 34 may be made of a hard rubber material so as to better and stably fix the connected circuit board 10 .

In some embodiments, the connection circuit board 10 is spaced apart from the inner wall of the protective shell 31 to prevent a gap from being formed at the contact point between the connection circuit board 10 and the protective shell 31 when glue is poured into the accommodating cavity 301, thereby affecting the sealing effect.

As shown in FIGS. 5 to 7 , in some embodiments, the circuit board fixing member 34 is annular and has an inner cavity 340. The inner wall of the circuit board fixing member 34 is provided with opposite clamping grooves 3401 for clamping the connecting circuit board 10 so that the connecting circuit board 10 is suspended relative to the protective housing 31. In this way, it is helpful to ensure that the connecting circuit board 10 is spaced apart from the inner wall of the protective housing 31.

As shown in FIG7 , in some embodiments, the slot 3401 is formed by a partial indentation of the inner wall of the annular circuit board fixing member 34. In other embodiments, the slot 3401 may also be formed by a limiting structure provided on the inner wall of the circuit board fixing member 34, and the limiting structure may be integrally formed with the inner wall of the annular circuit board fixing member 34, or may be an independent structure fixed to the inner wall of the annular circuit board fixing member 34.

In some embodiments, the spacing distance between the connecting circuit board 10 and the inner wall of the protective shell 31 is greater than or equal to 1 mm to ensure that the connecting circuit board 10 and the inner wall of the protective shell 31 can be well filled with glue, which is conducive to ensuring the sealing effect.

Taking the inner wall of the circuit board fixing member 34 provided with opposite slots 3401 as an example, the thickness of the annular circuit board fixing member 34 at the slots 3401 is greater than or equal to 1 mm.

It should be noted that, in the case where the connecting harness structure 100 includes 2, 3 or more connecting circuit boards, the connecting circuit boards are spaced apart, that is, each connecting circuit board is spaced apart from other connecting circuit boards, so as to prevent a gap from being formed at the contact point between two adjacent connecting circuit boards during glue pouring, thereby affecting the sealing effect.

In some embodiments, the spacing distance between adjacent connection circuit boards is greater than or equal to 1 mm, so as to ensure that the plurality of connection circuit boards can be well filled with glue, which is beneficial to ensure the sealing effect.

In some embodiments, when the connection harness structure 100 includes a plurality of connection circuit boards, the plurality of connection circuit boards may be arranged in parallel to facilitate the arrangement of the connection circuit boards and the arrangement of the harness.

In some embodiments, the circuit board fixing member 34 is assembled with the flexible protective glue 33. The flexible protective glue 33 and the circuit board fixing member 34 are respectively provided with a mating member that can cooperate with each other.

As shown in FIG. 7 , in some embodiments, the circuit board fixing member 34 has a plurality of slots 3402 arranged at intervals in the circumferential direction. The second protective colloid 332 of the flexible protective colloid 33 is provided with a plurality of lugs 3301 that can cooperate with the plurality of slots 3402. The circuit board fixing member 34 can be assembled with the second protective colloid 332 from the side of the second protective colloid 332 away from the first protective colloid 331.

In some other embodiments, the circuit board fixing member 34 may also be fixed by other structures, such as being directly fixed to the inner wall of the protective shell 31 .

It is understandable that similar circuit board fixing components may also be provided in the stress release structure 30 shown in other embodiments of the present application.

In some embodiments, a protective film is provided at the two opposite ends of the stress release structure 30 in the cable 20 to protect the cable 20 when the sealing colloid is provided. The protective film may be a protective film 80 as shown in FIG5 . The protective film 80 wraps the cables 20 on both sides together, and the cables 20 are arranged in a contracted shape from the two sides away from the protective film 80 toward the direction close to the protective film 80.

Of course, in some other embodiments, the protective film 80 may cover the two opposite ends of the stress release structure of each cable without changing the extension direction of each cable.

In some embodiments, the mounting portion 32 is provided with a plurality of first fixing holes 3201 , and the connecting harness structure 100 includes a plurality of fixing members 40 respectively adapted to the plurality of first fixing holes 3201 .

In some embodiments, the connecting harness structure 100 includes a sealing ring 50 , which is sleeved on the periphery of the protective shell 31 and abuts against the mounting portion 32 .

The connection harness structure 100 includes at least two connectors 60 respectively disposed at ends of the at least two cables 20 away from the connection circuit board 10 , for electrically connecting to other structures.

In some embodiments, the connection circuit board 10 has a first surface 101 and a second surface 102 opposite to each other, and opposite ends of at least one of the first surface 101 and the second surface 102 respectively have a single row or multiple rows of electrical connection keys.

For example, as shown in FIG. 8 , the connection circuit board 10 has a single row of electrical connection keys 11 and 12 at opposite ends 1011 and 1012 of the first surface 101 .

As another example, as shown in FIG. 9 , the connection circuit board 10 has double rows of electrical connection keys 15 and 13 , 16 and 14 at opposite ends 1013 and 1014 of the first surface 101 .

For another example, as shown in FIG. 10 , the connection circuit board 10 has double rows of electrical connection keys 15 and 13 , 16 and 14 , etc. on opposite ends 1015 and 1016 of the first surface 101 and the second surface 102 .

In the case of having double rows of electrical connection keys on opposite ends of the surface of the connecting circuit board 10, the first cable 21 connected to the first row of electrical connection keys closer to the middle of the connecting circuit board 10 needs to be longer than the second cable 22 connected to the second row of electrical connection keys relatively far away from the middle of the connecting circuit board 10.

As shown in Figures 9 and 10, in the two rows of electrical connection keys 15 and 13 located at the first end, the cable connected to the first row of electrical connection keys 13 closer to the middle of the connection circuit board 10 needs to be longer than the cable connected to the second row of electrical connection keys 15 relatively far from the middle of the connection circuit board 10. The first row of electrical connection keys 13 closer to the middle of the connection circuit board 10 includes a plurality of independent electrical connection keys. The second row of electrical connection keys 15 relatively far from the middle of the connection circuit board 10 also includes a plurality of independent electrical connection keys. Each independent electrical connection key is insulated from each other, and each cable is also insulated from each other. Each cable is connected to a corresponding electrical connection key. Among them, the cable 20 can be welded to the first row of electrical connection keys 13 across the second row of electrical connection keys 15. The number of independent electrical connection keys included in the first row of electrical connection keys 13 and the number of independent electrical connection keys included in the second row of electrical connection keys 15 may be the same, and the independent electrical connection keys included in the first row of electrical connection keys 13 and the independent electrical connection keys included in the second row of electrical connection keys 15 are aligned in the direction of the opposite ends (i.e., the left and right directions in the figures shown in FIGS. 9 and 10). Of course, the number of independent electrical connection keys included in the first row of electrical connection keys 13 and the number of independent electrical connection keys included in the second row of electrical connection keys 15 may also be different.

Similarly, in the two rows of electrical connection keys 16 and 14 located at the second end, the cable connected to the first row of electrical connection keys 14 closer to the middle of the connection circuit board 10 needs to be longer than the cable connected to the second row of electrical connection keys 16 relatively far from the middle of the connection circuit board 10. The row of electrical connection keys 14 closer to the middle of the connection circuit board 10 includes a plurality of independent electrical connection keys. The second row of electrical connection keys 16 relatively far from the middle of the connection circuit board 10 also includes a plurality of independent electrical connection keys. The independent electrical connection keys are insulated from each other, and the cables are also insulated from each other. Each cable is connected to an electrical connection key. Among them, the cable 20 can be welded to the first row of electrical connection keys 14 across the second row of electrical connection keys 16. The number of independent electrical connection keys included in the first row of electrical connection keys 14 and the number of independent electrical connection keys included in the second row of electrical connection keys 16 can be the same, and the independent electrical connection keys included in the first row of electrical connection keys 14 and the independent electrical connection keys included in the second row of electrical connection keys 16 are aligned in the direction of the opposite ends (i.e., the left and right directions in the figures shown in Figures 9 and 10). Of course, the number of independent electrical connection keys included in the first row of electrical connection keys 14 and the number of independent electrical connection keys included in the second row of electrical connection keys 16 may also be different.

It should be noted that the number of electrical connection keys located at the two opposite ends of the connection circuit board 10 may be equal or unequal.

Taking the example of having single-row electrical connection keys 11 and 12 at opposite ends of the connection circuit board 10, in some embodiments, The number of the first electrical connection keys 11 and the number of the second electrical connection keys 12 are the same.

As shown in FIG8 , in some embodiments, the first electrical connection key 11 corresponds to the second electrical connection key 12. Accordingly, a plurality of corresponding connection lines are provided inside the PCB board, each connection line connecting a first electrical connection key 11 and a corresponding second electrical connection key 12.

In some other embodiments, the number of the first electrical connection keys 11 is different from the number of the second electrical connection keys 12 .

In some embodiments, among the electrical connection keys included at one end of the connection circuit board 10, at least one electrical connection key corresponds to two or more electrical connection keys included at the other end of the connection circuit board 10. Accordingly, a connection circuit is provided in the connection circuit board to connect one electrical connection key at one end of the connection circuit board 10 and two or more electrical connection keys at one end of the connection circuit board, so as to form a mode of connecting one cable 21 with multiple cables 22, or a mode of connecting one cable 22 with multiple cables 21.

As shown in FIG8 , if the first electrical connection key 1101 on the first end 1011 of the connection circuit board 10 corresponds to the two second electrical connection keys 1201 and 1202 on the second end 1012 of the connection circuit board 10. Accordingly, a connection line connecting the first electrical connection key 1101 and the second electrical connection key 1201 is provided in the connection circuit board 10, and a connection line connecting the first electrical connection key 1101 and the second electrical connection key 1202 is also provided, so that the first cable 21 connected to the first electrical connection key 1101 can be connected to the two second cables 22 connected to the second electrical connection keys 1201 and 1202.

This method of connecting different numbers of cables by connecting the circuit board 10 is convenient to operate, and the connection between the cables is more stable.

In addition, it should be noted that the number of rows of electrical connection keys located at opposite ends of the connection circuit board 10 can be equal or unequal.

Based on the above description of the connection harness structure 100, during the manufacturing process of the connection harness structure 100, the stress release structure 30 can be prefabricated, the first cable 21 and the second cable 22 can be selected to be adapted, the circuit board 10 can be connected, and the sealing ring 50 can be prefabricated. Then, the first cable 21 and the second cable 22 can be connected to the corresponding electrical connection keys from both ends of the circuit board 10, and a flexible protective glue 33 can be set on the second cable 22. Then, the structure in which the first cable 21, the second cable 22 and the connection circuit board 10 are connected together can be inserted into the accommodating cavity 301 from one side of the opening 3202 of the mounting portion or the opening 3101 of the first accommodating cavity, so that the connection circuit board 10 and a part of the cables 21 and 22 are located in the accommodating cavity 301. For example, when the flexible protective glue 33 is as shown in Figures 3 and 4, the structure in which the first cable 21, the second cable 22 and the connection circuit board 10 are connected together can be inserted into the accommodating cavity 301 from one side of the opening 3202 of the mounting portion or the opening 3101 of the first accommodating cavity. When the flexible protective glue 33 is as shown in FIGS. 5 to 7 , the structure in which the first cable 21, the second cable 22 and the connection circuit board 10 are connected together can be inserted into the accommodating cavity 301 from one side of the first accommodating cavity opening 3101. Most of the first cable 21 and the second cable 22 are respectively located at the two ends of the accommodating cavity 301, and at least part of the flexible protective glue 33 is located in the mounting portion opening 3202. Finally, glue can be poured into the accommodating cavity to form a sealing colloid. It is understandable that the sealing ring 50 can be arranged outside the protective shell 31 at multiple stages after the prefabricated stress release structure 30.

Please refer to FIG. 2 and, if necessary, in combination with FIG. 1 and FIG. 3 to FIG. 10, the present application further provides an electric Sub-device 1000. The electronic device 1000 includes a body shell 200 and the connection harness structure 100 as described above, wherein the body shell 200 is provided with a body mounting hole 2001, and the stress release structure 30 is detachably mounted in the body mounting hole 2001. The protective shell 31 is passed through the body mounting hole 2001 and extends into the body shell 200, and the mounting portion 32 is against the outer surface 201 of the body shell 200.

In some embodiments, the mounting portion 32 is provided with a plurality of first fixing holes 3201, the connecting harness structure 100 includes a plurality of fixing members 40 respectively adapted to the plurality of first fixing holes 3201, and the fuselage shell 200 is provided with a second fixing hole opposite to the plurality of first fixing holes 3201. In this way, the mounting portion 32 can be fixed to the fuselage shell 200 by inserting the fixing member 40 into the first fixing hole 3201 and the second fixing hole.

In some embodiments, when the connecting harness structure 100 includes a sealing ring 50 sleeved on the periphery of the protective shell 31 , the sealing ring 50 is disposed between the mounting portion 32 and the body shell 200 .

In some embodiments, the fuselage shell 200 is provided with an annular receiving groove 202 located at the periphery of the fuselage mounting hole 2001 and concave toward the inner side of the fuselage shell 200, and the sealing ring 50 is arranged in the annular receiving groove 202. It can be understood that the sealing ring 50 is located in the annular receiving groove 202, and the peripheral side is squeezed by the mounting portion 32 and the groove wall of the receiving groove 202 of the fuselage shell 200, so that the connection between the stress release structure and the fuselage shell 200 (i.e., the fuselage mounting hole 2001) can be better sealed.

Based on the above description, here, the embodiment in which the fuselage shell 200 has an annular receiving groove 202 is taken as an example, the above-mentioned connecting harness structure 100 can be inserted from the outside of the fuselage shell 200 to the inside, the protective shell 31 is inserted into the fuselage mounting hole 2001, the sealing ring 50 is located in the annular receiving groove 202, and the mounting portion 32 is fixed to the fuselage shell 200 by the fixing member 40. The installation of the connecting harness structure 100 is simple and convenient. It can be understood that the above-mentioned filling of glue in the receiving cavity 301 to form the sealing colloid can also be performed after the connecting harness structure 100 is fixed to the fuselage shell 200.

Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of a preferred embodiment, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present application. The above description is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims (15)

A connecting harness structure, characterized by comprising: One or more connecting circuit boards, each of which has at least one electrical connection key on a first end and a second end opposite to each other; at least two cables, including at least one first cable connected to at least one first electrical connection key located on a first end of the connection circuit board, and at least one second cable connected to at least one second electrical connection key located on a second end of the connection circuit board; The stress relief structure includes a prefabricated protective shell and a mounting portion. The protective shell has a receiving cavity that passes through two opposite ends of the protective shell. The mounting portion at least includes a mounting body located at the outer edge of the protective shell; The connecting circuit board is arranged in the accommodating cavity. The at least one first cable extends out from one end of the accommodating cavity, and the at least one second cable extends out from the other end of the accommodating cavity. The connecting harness structure according to claim 1 is characterized in that the mounting portion is provided at one end of the protective shell and is provided with a mounting portion opening communicating with the accommodating cavity, The cable extending from one end of the accommodating cavity communicating with the opening of the mounting portion is passed through the opening of the mounting portion. The connecting harness structure according to claim 2, characterized in that the connecting harness structure comprises: The flexible protective adhesive is located in the opening of the mounting portion and is sleeved on the cable passing through the opening of the mounting portion. The connecting harness structure according to claim 3, characterized in that the flexible protective glue comprises a first protective colloid and a second protective colloid; The first protective colloid and the second protective colloid form an annular step portion, and the orthographic projection of the first protective colloid on the second protective colloid falls within the surface of the second protective colloid facing the first protective colloid, and the projection area is smaller than the area of the surface of the second protective colloid facing the first protective colloid; The protective shell and the mounting portion form an annular inner step wall at the connection between the two. The first protective colloid is located in the opening of the mounting portion, the second protective colloid is located in the accommodating cavity, and the step portion formed by the first protective colloid and the second protective colloid is correspondingly engaged with the annular inner step wall formed by the protective shell and the mounting portion. The connecting harness structure according to any one of claims 1 to 4, characterized in that the stress release structure comprises a circuit board fixing member, The circuit board fixing member is arranged in the accommodating cavity and is used to fix the connecting circuit board; The connection circuit board is spaced apart from the inner wall of the protection shell; the spacing distance between the connection circuit board and the protection shell is greater than or equal to 1 mm. The connecting harness structure according to claim 5, characterized in that the circuit board fixing member is ring-shaped, The inner wall of the circuit board fixing member is provided with opposite slots. The connecting circuit board is clamped in the clamping slot. The connecting harness structure according to claim 5 or 6, characterized in that the circuit board fixing member is annular and has a plurality of slots arranged at intervals in the circumferential direction, The plurality of card slots cooperate with a plurality of lugs on the flexible protective glue arranged in the opening of the mounting portion. The connecting harness structure according to any one of claims 1 to 7 is characterized in that the protective shell and the mounting portion are made of hard rubber material. The connecting harness structure according to any one of claims 1 to 8 is characterized in that the multiple connecting circuit boards are arranged at intervals; and the spacing distance between each connecting circuit board and the adjacent connecting circuit board is greater than or equal to 1 mm. The connecting harness structure according to any one of claims 1 to 9, characterized in that each of the connecting circuit boards has a first surface and a second surface opposite to each other, and a single row or multiple rows of electrical connection keys are respectively provided on the first end and the second end opposite to each other of at least one of the first surface and the second surface; For each of the connecting circuit boards, each of the first electrical connecting keys located on the first end of the connecting circuit board is correspondingly connected to one or more of the second electrical connecting keys located on the second end of the connecting circuit board. The connecting harness structure according to any one of claims 1 to 10, characterized in that: The mounting portion is provided with a plurality of first fixing mounting holes, and the connecting harness structure comprises a plurality of fixing members respectively adapted to the plurality of first fixing mounting holes; The connecting harness structure includes a sealing ring, which is sleeved on the periphery of the protective shell and abuts against the mounting portion; The connection harness structure comprises at least two connectors respectively arranged at ends of the at least two cables away from the connection circuit board; The connecting wire harness structure comprises a sealing colloid, and the sealing colloid is at least filled in the accommodating cavity to seal the connecting circuit board and the cables located in the accommodating cavity. An electronic device comprises a body shell and a connecting harness structure as described in any one of claims 1 to 11, wherein the body shell is provided with a body mounting hole, and the stress release structure is detachably mounted on the body mounting hole; wherein the protective shell is passed through the body mounting hole and extends into the body shell, and the mounting portion abuts against the outer surface of the body shell. The electronic device as described in claim 12 is characterized in that the mounting portion is provided with a plurality of first fixed mounting holes, the connecting harness structure includes a plurality of fixing parts respectively adapted to the plurality of first fixed mounting holes, the body shell is provided with second fixed mounting holes opposite to the plurality of first fixed mounting holes, the fixing parts are passed through the first fixed mounting holes and the second fixed mounting holes to fix the mounting portion on the body shell. The electronic device as described in claim 12 or 13 is characterized in that the connecting harness structure includes a sealing ring, which is sleeved on the periphery of the protective shell and abuts between the mounting portion and the body shell. The electronic device as described in claim 14 is characterized in that the body shell is provided with an annular accommodating groove located at the periphery of the mounting hole and concave toward the inner side of the body shell, and the sealing ring is arranged in the annular accommodating groove.