External cable installation structure and wired collector

Abstract

The utility model belongs to the technical field of measuring instruments, and particularly relates to an external cable installation structure and a wired collector. The external cable mounting structure comprises a shell, a first joint and a second joint, a mounting hole is formed in the shell; one end of the first connector is provided with a positioning part, the other end of the first connector is provided with a fixing part, one end, deviating from the positioning part, of the first connector penetrates through the mounting hole, the fixing part is sleeved with a connecting piece and a sealing piece, the connecting piece abuts against the sealing piece to the inner wall of the shell, the positioning part abuts against the outer wall of the shell, and a first connecting wire penetrates through the interior of the first connector; a second connecting line penetrates through the second connector, and the second connector can be connected to the side, away from the shell, of the positioning part, so that the first connecting line and the second connecting line can be connected through the second connector. According to the technical scheme, the external cable installation structure can be conveniently connected with the cable and has good sealing performance.

Description

Technical Field

[0001] This utility model belongs to the field of measuring instrument technology, specifically relating to an external cable installation structure and a wired data acquisition device. Background Technology

[0002] The wired data collector connects to the water meter via an external cable, enabling data communication between the collector and the water meter. The cable and battery are electrically connected to the printed circuit board (PCB) via a first connecting wire. To install the cable, a through-hole needs to be made in the housing. The cable passes through the through-hole and is secured to the housing. After securing, one end of the cable connects to the water meter, and the other end connects to the PCB via the first connecting wire.

[0003] In existing technologies, to achieve a certain waterproof rating, rubber rings are typically pre-installed at the through-holes of the housing before cable installation, and then the cables are passed through the rubber rings. To further secure the cables and improve the waterproof rating, adhesive is injected inside the housing. In this current installation method, both the rubber plug and the cable are interference-fitted, making them difficult to insert into the through-holes of the housing, resulting in significant installation difficulty. Furthermore, the installation is not secure, requiring adhesive injection inside the housing until it covers the rubber plug and cable for strong fixation, thus increasing injection costs. Before internal adhesive injection, the rubber ring and cable are not strongly secured, making them susceptible to detachment under external force, leading to connection and seal failure. If the housing uses an integrated cable, cable replacement is either impossible or extremely cumbersome, severely limiting application scenarios.

[0004] Therefore, there is an urgent need to provide an easy-to-install, securely fixed external cable mounting structure and a wired data acquisition device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to at least solve the problems of difficult installation and poor reliability of existing external cables. This purpose is achieved through the following technical solution:

[0006] The first aspect of this utility model provides an external cable mounting structure, comprising:

[0007] A housing, wherein mounting holes are provided on the housing;

[0008] The first connector has a positioning part at one end and a fixing part at the other end. The end of the first connector away from the positioning part passes through the mounting hole. A connector and a sealing part are sleeved on the fixing part. The connector presses the sealing part against the inner wall of the housing. The positioning part abuts against the outer wall of the housing. A first connecting line passes through the interior of the first connector.

[0009] The second connector has a second connecting line passing through it. The second connector can be connected to the side of the positioning part away from the housing so that the first connecting line and the second connecting line can be connected through the second connector.

[0010] By using the external cable mounting structure in this technical solution, during assembly, the first connector and the housing are first connected. This involves inserting one end of the first connector with its fixing part into the mounting hole until the positioning part abuts against the outer wall of the housing. Then, the sealing element is fitted onto the fixing part, followed by the connecting element, which presses against the sealing element. Connecting the second connector to the first connector achieves electrical connection between the first and second connecting elements, thus connecting the cable to the internal circuitry of the mounting structure. This connection method makes the connection between the connector and the housing very convenient, and the installation of the sealing element is also easier. With the connecting element fixed, the sealing element provides excellent sealing performance, and the overall structural connection stability is very reliable. Furthermore, since the first connector can be fixedly connected via the connecting element, there is no need for potting for fixing and sealing, effectively reducing the use of potting and thus reducing production costs. Connecting the cable and the second connecting element eliminates the need to disassemble the first connector when replacing the cable, making the operation simple and convenient.

[0011] In addition, the external cable mounting structure of this utility model may also have the following additional technical features:

[0012] In some embodiments of this utility model, the positioning part and the fixing part are connected by a connecting part, which passes through the mounting hole.

[0013] In some embodiments of this utility model, a beveled boss is provided between the positioning part and the connecting part. The outer periphery of the beveled boss is an inclined surface. A first chamfer is provided on the side of the mounting hole facing the outside of the housing. The outer periphery of the beveled boss and the beveled surface formed by the first chamfer abut against each other.

[0014] In some embodiments of this utility model, the outer periphery of the side of the positioning part away from the housing is provided with an installation part and a second connector threadedly connected, and the side of the second connector facing the positioning part abuts against the positioning part.

[0015] In some embodiments of this utility model, the sealing element and the fixing part are fitted with a clearance.

[0016] In some embodiments of this utility model, the sealing element has an annular rib on the side facing the housing, and the inner wall of the housing has an annular groove along the outer periphery of the mounting hole, with the annular rib and the annular groove interlocking; or, the sealing element has an annular groove on the side facing the housing, and the inner wall of the housing has an annular rib along the outer periphery of the mounting hole, with the annular rib and the annular groove interlocking.

[0017] In some embodiments of this utility model, an extension plate is connected to the outer wall of the housing, and the extension plate and the outer wall of the housing are connected to form an opening groove. The opening groove is used to accommodate the second connector. A cover plate is provided at the opening of the opening groove. The cover plate can be connected to the extension plate and is used to open or close the opening groove.

[0018] In some embodiments of this utility model, the opening groove is provided with a snap-fit ​​part, the snap-fit ​​part is connected to the outer wall of the housing, the snap-fit ​​part is provided with a snap-fit ​​groove, and the second connector can snap into the snap-fit ​​groove.

[0019] In some embodiments of this utility model, a connecting post is provided inside the opening groove, the connecting post is connected to the outer wall of the housing, and a mounting shaft is provided on the side of the cover plate facing the opening groove, the mounting shaft being used to insert into the connecting post.

[0020] In a second aspect, this utility model provides a wired data acquisition device, which includes the cable described in the above embodiments and the external cable mounting structure described above, wherein the cable is connected to the second connecting line. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 A partial cross-sectional view of a wired data acquisition device (connected to the second connector and the first connector) according to an embodiment of the present invention is shown schematically.

[0023] Figure 2 A schematic diagram of the structure of the first connector according to an embodiment of the present invention is shown from a certain perspective;

[0024] Figure 3 A schematic diagram of the structure of the first connector according to an embodiment of the present invention is shown from another perspective;

[0025] Figure 4A schematic diagram of the structure of the second connector according to an embodiment of the present invention is shown;

[0026] Figure 5 A partial structural schematic diagram of the housing according to an embodiment of the present invention is shown schematically;

[0027] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 A schematic diagram of the structure of a sealing element according to an embodiment of the present invention is shown.

[0029] Figure 8 A schematic diagram of the structure of the housing according to an embodiment of the present invention is shown;

[0030] Figure 9 A schematic diagram of the structure of the cover plate according to an embodiment of the present invention is shown;

[0031] Figure 10 A schematic cross-sectional view of a wired data acquisition device (with the second connector placed in the opening slot) according to an embodiment of the present invention is shown.

[0032] The labels in the attached diagram are as follows:

[0033] 100. Housing; 101. Mounting hole; 102. Annular groove; 110. Extension post; 120. Extension plate; 121. Opening groove; 130. Snap-fit ​​part; 131. Snap-fit ​​groove; 140. Connecting post;

[0034] 200, First connector; 210, Positioning part; 220, Fixing part; 230, Connecting part; 240, sloping boss; 250, First connecting wire; 251, Pin; 260, Mounting part; 270, Sealing ring;

[0035] 300, Second connector; 310, Second connecting wire; 320, Plug; 321, Socket;

[0036] 400. Connectors;

[0037] 500. Seal; 510. Ring rib; 520. Sealing boss;

[0038] 600, cover plate; 610, mounting shaft; 620, limiting rib;

[0039] 700. Cables. Detailed Implementation

[0040] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0041] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0042] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0043] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0044] Figure 1A partial structural cross-sectional view of a wired data acquisition device (connected to the second connector 300 and the first connector 200) according to an embodiment of the present invention is shown schematically. Figure 2 A schematic diagram of the structure of the first connector 200 according to an embodiment of the present invention is shown from a certain perspective. Figure 3 A schematic diagram of the structure of the first connector 200 according to an embodiment of the present invention is shown from another perspective. Figure 4 A schematic diagram of the structure of the second connector 300 according to an embodiment of the present invention is shown. See also Figures 1 to 4 This utility model proposes an external cable installation structure, including a housing 100, a first connector 200, and a second connector 300. The housing 100 is provided with a mounting hole 101. One end of the first connector 200 is provided with a positioning part 210, and the other end is provided with a fixing part 220. The end of the first connector 200 away from the positioning part 210 passes through the mounting hole 101. A connector 400 and a sealing part 500 are sleeved on the fixing part 220. The connector 400 presses the sealing part 500 against the inner wall of the housing 100. The positioning part 210 abuts against the outer wall of the housing 100. A first connecting wire 250 passes through the inside of the first connector 200. A second connecting wire 310 passes through the second connector 300. The second connector 300 can be connected to the side of the positioning part 210 away from the housing 100, so that the first connecting wire 250 and the second connecting wire 310 can be connected through the second connector 300.

[0045] By using the external cable mounting structure in this technical solution, during assembly, the first connector 200 and the housing 100 are first connected. Specifically, one end of the first connector 200 with the fixing part 220 is inserted into the mounting hole 101 until the positioning part 210 abuts against the outer wall of the housing 100. Then, the sealing member 500 is fitted onto the fixing part 220, and then the connecting member 400 is fitted onto the fixing part 220, pressing the sealing member 500 against it. By connecting the second connector 300 and the first connector 200, the first connecting member 400 and the second connecting member 400 are electrically connected, thus achieving the connection between the cable 700 (or other external components) and the internal circuitry of the mounting structure. By adopting this connection method, the connection operation between the connector and the housing 100 is very convenient, and the installation of the seal 500 is also more convenient. With the connector 400 fixed, the seal 500 can provide good sealing performance, and the connection stability of the overall structure is also very reliable. In addition, since the first connector 200 can be fixedly connected through the connector 400, there is no need to use potting for fixing and sealing, which can effectively reduce the use of potting and thus reduce production costs. By connecting the cable 700 and the second connecting line 310, the first connector 200 does not need to be disassembled when replacing the cable 700, making the operation simple and convenient.

[0046] Optionally, the end of the second connecting wire 310 that is connected to the first connecting wire 250 is connected to a plug 320, and the plug 320 is provided with a socket 321. Correspondingly, the end of the first connecting wire 250 that passes through the second connector 300 is connected to a pin 251. When the second connector 300 and the first connector 200 are connected, the pin 251 is inserted into the socket 321, thereby connecting the second connecting wire 310 and the first connecting wire 250.

[0047] In this embodiment, the mounting hole 101 is provided on one side wall of the housing 100. In order to increase the structural strength of the housing 100, an extension post 110 is connected to the inner wall of the housing 100, and the mounting hole 101 is provided through the extension post 110.

[0048] Furthermore, the positioning part 210 and the fixing part 220 are connected by the connecting part 230, which passes through the mounting hole 101.

[0049] During assembly, the connecting part 230 is inserted into the mounting hole 101 with the mounting part 101 facing towards it until the positioning part 210 abuts against the housing 100. At this point, the connecting part 230 is located in the mounting hole 101. This through-hole method is simple to operate and convenient to connect. Optionally, the connecting part 230 and the mounting hole 101 are clearance-fitted, meaning the outer diameter of the connecting part 230 is smaller than the inner diameter of the mounting hole 101. This clearance fit allows the first connector 200 to be easily inserted into the mounting hole 101, preventing jamming during installation. Optionally, the outer diameter of the fixing part 220 is less than or equal to the outer diameter of the connecting part 230. Of course, the outer diameter of the positioning part 210 is larger than the outer diameter of the connecting part 230, so that the fixing part 220 can abut against the outer wall of the housing 100.

[0050] Furthermore, a beveled boss 240 is provided between the positioning part 210 and the connecting part 230. The outer periphery of the beveled boss 240 is an inclined surface. A first chamfer is provided on the side of the mounting hole 101 facing the outside of the housing 100. The outer periphery of the beveled boss 240 and the beveled surface formed by the first chamfer abut against each other.

[0051] Understandably, by setting the beveled boss 240 and the first chamfer, the contact area between the first connector 200 and the housing 100 can be increased. The beveled boss 240 shares the pressure on the positioning part 210, thereby reducing the risk of deformation or damage to the positioning part 210 and effectively improving the connection strength and stability of the structure. Optionally, the angle of the first chamfer can be 30° to 45°, which can be set according to the usage requirements. The bevel of the outer periphery of the beveled boss 240 is set according to the inclination angle of the first chamfer to ensure that the outer periphery of the beveled boss 240 and the bevel formed by the first chamfer can fit together.

[0052] Furthermore, a mounting portion 260 is provided on the outer periphery of the side of the positioning portion 210 facing away from the housing 100. The mounting portion 260 is threadedly connected to the second connector 300, and the side of the second connector 300 facing the positioning portion 210 abuts against the positioning portion 210.

[0053] Threaded connections, as a widely used detachable fixing method, have the advantages of simple structure, reliable connection, and convenient installation and removal. For example, the mounting part 260 is provided with internal threads, and the outer periphery of the second connector 300 is provided with external threads. The second connector 300 and the mounting part 260 are connected by the external and internal threads. Optionally, a sealing ring 270 is provided between the positioning part 210 and the second connector 300. By providing the sealing ring 270, the sealing effect between the first connector 200 and the second connector 300 can be effectively increased.

[0054] Furthermore, the seal 500 and the fixing part 220 are fitted with a clearance.

[0055] By setting the inner diameter of the seal 500 to be larger than the outer diameter of the fixing part 220, the seal 500 can be easily fitted onto the fixing part 220, effectively saving assembly time. Optionally, the seal 500 can be a rubber part or a silicone part.

[0056] Furthermore, Figure 5 A partial structural schematic diagram of the housing 100 according to an embodiment of the present invention is shown. Figure 6 yes Figure 5 Enlarged view of point A in the middle. Figure 7 A schematic structural diagram of a seal 500 according to an embodiment of the present invention is shown. See also Figures 5 to 7 The sealing element 500 has an annular rib 510 on the side facing the housing 100, and the inner wall of the housing 100 has an annular groove 102 along the outer periphery of the mounting hole 101, with the annular rib 510 and the annular groove 102 interlocked; or, the sealing element 500 has an annular groove 102 on the side facing the housing 100, and the inner wall of the housing 100 has an annular rib 510 along the outer periphery of the mounting hole 101, with the annular rib 510 and the annular groove 102 interlocked.

[0057] The sealing effect is enhanced by the insertion of the annular rib 510 and the annular groove 102, preventing foreign objects from entering the interior of the housing 100 through the mounting hole 101. Optionally, a second chamfer is provided on the side of the mounting hole 101 facing the inner wall of the housing 100, and a sealing boss 520 is provided on the side of the seal 500 facing the mounting hole 101. The outer periphery of the sealing boss 520 is inclined, so that the sealing boss 520 can be inserted into the interior of the mounting hole 101 and contact the second chamfer portion of the mounting hole 101. This increases the contact area between the seal 500 and the housing, thereby effectively improving the sealing effect. Optionally, the sealing boss 520 and the mounting hole 101 are interference-fitted, thereby enhancing the sealing performance between the seal 500 and the housing 100.

[0058] Furthermore, Figure 8 A schematic diagram of the structure of the housing 100 according to an embodiment of the present invention is shown. Figure 9 A schematic diagram of the structure of the cover plate 600 according to an embodiment of the present invention is shown. Figure 10 A partial cross-sectional view of a wired data acquisition device (with the second connector 300 placed in the opening slot 121) according to an embodiment of the present invention is shown schematically. See also Figures 8 to 10 An extension plate 120 is connected to the outer wall of the housing 100. The extension plate 120 and the outer wall of the housing 100 are connected to form an opening groove 121. The opening groove 121 is used to accommodate the second connector 300. A cover plate 600 is provided at the opening of the opening groove 121. The cover plate 600 can be connected to the extension plate 120. The cover plate 600 is used to open or close the opening groove 121.

[0059] The second connector 300 is housed in the opening slot 121 for easy packaging and transportation, reducing the overall space occupied by the structure. Optionally, the extension plate 120 is located below the mounting hole 101. In this embodiment, the cover plate 600 and the extension plate 120 are detachably connected, and the opening slot 121 is opened by removing the cover plate 600. In other embodiments, one side of the cover plate 600 and the extension plate 120 are rotatably connected, and the opening slot 121 is opened by rotating the cover plate 600.

[0060] Furthermore, the opening slot 121 is provided with a snap-fit ​​part 130, which is connected to the outer wall of the housing 100. The snap-fit ​​part 130 is provided with a slot 131, and the second connector 300 can snap into the slot 131.

[0061] By engaging the second connector 300 with the engaging part 130, the second connector 300 can be prevented from moving freely within the opening slot 121, thereby avoiding damage to the second connector 300 due to impact or scratch. Optionally, the engaging part 130 can be a plate-like structure, and the slot 131 can be a U-shaped slot, the size of which is set according to the structure of the second connector 300 to ensure that the second connector 300 can be stably engaged in the slot 131.

[0062] Furthermore, a connecting post 140 is provided inside the opening slot 121, and the connecting post 140 is connected to the outer wall of the housing 100. A mounting shaft 610 is provided on the side of the cover plate 600 facing the opening slot 121, and the mounting shaft 610 is used to insert into the connecting post 140.

[0063] The cover plate 600 and the extension can be connected by inserting the mounting shaft 610 and the connecting post 140. The structure is simple and the connection is convenient. Optionally, there can be multiple connecting posts 140. In this embodiment, there are three connecting posts 140, two of which are located above the snap-fit ​​part 130 and one is located below the snap-fit ​​part 130. The cover plate 600 can be stably connected by the three connecting posts 140. In other embodiments, the number of connecting posts 140 can also be two, four, or five, etc., depending on the usage requirements. The number of mounting posts and the number of connecting posts are consistent.

[0064] Furthermore, a limiting rib 620 is provided on the side of the cover plate 600 facing the opening slot 121. The position of the limiting rib 620 corresponds to the slot 131. When the second connector 300 is engaged with the engaging part 130, the cover plate 600 is closed, and the limiting rib 620 and the second connector 300 abut against each other. This ensures that the second connector 300 can be stably embedded in the slot 131.

[0065] Furthermore, this technical solution also provides a wired data acquisition device, including a cable 700 and the aforementioned external cable mounting structure, wherein the cable 700 is connected to the second connecting line 310.

[0066] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An external cable mounting structure characterized by comprising: The utility model relates to a shell (100) is provided with mounting hole (101) on the shell (100), first joint (200) is provided with positioning portion (210) one end, is provided with fixed part (220) the other end, the first joint (200) one end away from the positioning portion (210) is worn in mounting hole (101), the fixed part (220) is sleeved with connecting piece (400) and sealing element (500), the connecting piece (400) is pressed to the sealing element (500) on the inner wall of shell (100), the positioning portion (210) and the outer wall of shell (100) abut, the first joint (200) is penetrated with first connecting wire (250) inside, Second joint (300) is penetrated with second connecting wire (310), second joint (300) can be connected to the side of positioning portion (210) away from shell (100), so that first connecting wire (250) and second connecting wire (310) can be connected through second joint (300). The positioning portion (210) and the fixed part (220) are connected through the connecting part (230), and the connecting part (230) is penetrated in the mounting hole (101). The positioning portion (210) and the connecting part (230) are provided with inclined surface boss (240) between them, the outer periphery of the inclined surface boss (240) is an inclined surface, the side of the mounting hole (101) towards the outside of the shell (100) is provided with a first chamfer, and the inclined surface formed by the outer periphery of the inclined surface boss (240) and the first chamfer abuts.

2. The external cable mounting structure according to claim 1, characterized by The outer periphery of the side of the positioning portion (210) away from the shell (100) is provided with a mounting portion (260), the mounting portion (260) and the second joint (300) are threadedly connected, and the side of the second joint (300) towards the positioning portion (210) abuts against the positioning portion (210).

3. The external cable mounting structure according to claim 2, characterized by The sealing element (500) and the fixed part (220) are clearance fit.

4. The external cable mounting structure of claim 1, wherein The side of the sealing element (500) towards the shell (100) is provided with a ring rib (510), the inner wall of the shell (100) is provided with a ring groove (102) along the outer periphery of the mounting hole (101), and the ring rib (510) and the ring groove (102) are inserted; or, the side of the sealing element (500) towards the shell (100) is provided with a ring groove (102), the inner wall of the shell (100) is provided with a ring rib (510) along the outer periphery of the mounting hole (101), and the ring rib (510) and the ring groove (102) are inserted.

5. The external cable mounting structure of claim 1, wherein ​ 6. The external cable mounting structure of claim 1, wherein ​ 7. The external cable mounting structure according to any one of claims 1 to 6, characterized by, The outer wall of the shell (100) is connected with an extension plate (120), the extension plate (120) and the outer wall of the shell (100) are connected to form an open slot (121), the open slot (121) is used for accommodating the second connector (300), the slot opening of the open slot (121) is provided with a cover plate (600), the cover plate (600) can be connected with the extension plate (120), and the cover plate (600) is used for opening or closing the open slot (121).

8. The external cable mounting structure of claim 7, wherein The inside of the open slot (121) is provided with a clamping part (130), the clamping part (130) is connected with the outer wall of the shell (100), and the clamping part (130) is provided with a clamping groove (131), and the second connector (300) can be clamped in the clamping groove (131).

9. The external cable mounting structure of claim 8, wherein, The inside of the open slot (121) is provided with a connecting column (140), the connecting column (140) is connected to the outer wall of the shell (100), one side of the cover plate (600) facing the open slot (121) is provided with a mounting shaft (610), and the mounting shaft (610) is used for being inserted into the connecting column (140).

10. A wired collector, characterized in that, The cable (700) and the external cable mounting structure according to any one of claims 1-9 are connected, and the cable (700) is connected with the second connecting line (310).

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