Conducting strip fixing structure and winding roll

Abstract

The utility model relates to a conducting strip fixing structure and a winding roll. The conducting strip fixing structure comprises a plastic fixing disc and a conducting strip, the conducting strip is integrally annular and is arranged on the side wall of the plastic fixing disc, the conducting strip comprises a conducting strip main body and at least two connecting extension parts which are sequentially arranged in the circumferential direction of the conducting strip main body and extend outwards or inwards from the conducting strip main body, and each connecting extension part is provided with a connecting hole site; the side wall of the plastic fixing disc is provided with at least two welding protruding parts which are sequentially arranged in the circumferential direction and extend upwards, the welding protruding parts penetrate through the corresponding connecting hole positions in the conducting strips, and the tops of the welding protruding parts are exposed relative to the connecting hole positions so that the welding protruding parts can be connected with the conducting strips in an ultrasonic welding mode. The conducting strip fixing structure has the advantages of being convenient to process, easy to operate and firm in fixation.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive sheet fixing structures, in particular to a conductive sheet fixing structure and a cable reel. Background Art

[0002] In order to avoid the power cord being placed outside the iron and looking messy, existing ironing equipment, such as electric irons, are provided with a cord reel. The cord reel winds up the power cord and stores it inside the iron, thereby effectively organizing the power cord and helping to save space. The cord reel uses a winding spring to reel up the power cord. One end of the power cord needs to be exposed outside the main body of the ironing device, and the other end of the power cord needs to maintain electrical contact with the electrode assembly on the main body to ensure stable power supply. For example, the Chinese utility model patent application with application number CN202122359683.8 (authorization announcement number: CN216474123U) discloses a new cord reel structure for an ironing device, in which a power cord is wound inside the cord reel, and the power cord is electrically connected to the device main body through the electrode assembly. The electrode assembly includes a conductive column, an electric contact ring provided on the cord reel, and an end cover fixed on the cord reel. The first section of the conductive column is passed through the end cover and is electrically connected to the main body. An elastic member is provided between the second section of the conductive column and the end cover. The elastic member drives the conductive column to engage with the electric contact ring so that the power cord is connected to the main body.

[0003] However, existing ironing equipment cord reels, particularly the mounting structure for the conductive sheet (also known as an electric contact ring or copper ring), still have certain drawbacks. Conventional methods for securing the conductive sheet involve manually rotating it 45 degrees using several legs. This process is laborious and inefficient for operators due to limited operating space, and increases labor costs. Furthermore, this mounting structure is not secure and can easily become loose or come undone, leading to poor contact.

[0004] Therefore, the fixing structure of the existing conductive sheet needs to be further improved. Utility Model Content

[0005] The first technical problem to be solved by the present invention is to provide a conductive sheet fixing structure that is easy to process and operate and has a reliable fixation, in view of the current status of the existing technology.

[0006] The second technical problem to be solved by the present invention is to provide a cable reel using the above-mentioned conductive sheet fixing structure in view of the current status of the existing technology.

[0007] The technical solution adopted by the present invention to solve the first technical problem is: a conductive sheet fixing structure, comprising:

[0008] Plastic fixing plate;

[0009] The conductive sheet is annular as a whole and is provided on the side wall of the plastic fixed disk. The conductive sheet includes a conductive sheet main body and at least two connecting extensions arranged in sequence along the circumference of the conductive sheet main body and extending outward or inward from the conductive sheet main body. Each of the connecting extensions is provided with a connecting hole. The side wall of the plastic fixed disk is provided with at least two welding protrusions arranged in sequence along the circumference and extending upward. Each of the welding protrusions passes through the corresponding connecting hole on the conductive sheet, and its top is exposed relative to the connecting hole so that the two are suitable for being connected by ultrasonic welding.

[0010] Taking into account the need for convenient ultrasonic welding processing operation space, priority is given to setting a connection extension part on the outside of the conductive sheet body. To this end, the connection extension part includes at least two external connection extension parts extending outward from the outer peripheral wall of the conductive sheet body, and each of the external connection extension parts is correspondingly provided with a first connection hole position. The welding protrusion on the side wall of the plastic fixing plate includes at least two first welding protrusions corresponding to each first connection hole position.

[0011] In order to ensure the stability and reliability of the conductive sheet welding and avoid the problem of warping of the other side due to welding on only one side, the connection extension portion also includes at least two internal connection extension portions extending inward from the inner peripheral wall of the conductive sheet body, and each of the internal connection extension portions is correspondingly provided with a second connection hole position, and the welding protrusion on the side wall of the plastic fixing plate includes at least two second welding protrusions corresponding to each second connection hole position.

[0012] In order to reasonably utilize the operating space for welding operations, each of the outer connecting extensions and each of the inner connecting extensions are staggered with each other in the radial extension direction of the conductive sheet body.

[0013] As an improvement, the top of the welding protrusion is constructed as a pointed structure with its size gradually decreasing from bottom to top. The pointed structure design can facilitate the smooth placement of the conductive sheet on the corresponding welding protrusion and also reduce the problem of glue overflow caused by excessive material on the top during welding.

[0014] The cross section of the welding protrusion can generally be a circular, strip-shaped structure, etc. Preferably, the welding protrusion is in the shape of a sheet as a whole, and the width of the pointed structure at the top of the welding protrusion gradually decreases from bottom to top.

[0015] The technical solution adopted by the present invention to solve the second technical problem is: a cable reel, including a cable reel for winding a power cord and capable of rotating around its own axis, and a conductive sheet provided on the cable reel, the conductive sheet being connected to the cable reel using the above-mentioned conductive sheet fixing structure, and the cable reel constituting the plastic fixed reel.

[0016] In order to be suitable for connecting with the conductive parts of the positive and negative electrodes, there are two conductive sheets on the wire drum, namely a first conductive sheet and a second conductive sheet arranged in sequence along the radial direction, and the second conductive sheet is located outside the first conductive sheet.

[0017] In order to rationally use the space for the wire reel and make the volume of the entire wire reel structure smaller and more compact, the first conductive sheet has a first external connection extension extending outward from the conductive sheet main body of the first conductive sheet, the second conductive sheet has a second external connection extension extending outward from the conductive sheet main body of the second conductive sheet and a second internal connection extension extending inward from the conductive sheet main body of the second conductive sheet, and the plastic fixed plate is provided with a first welding protrusion adapted to the first external connection extension, a second welding protrusion adapted to the first internal connection extension and a third welding protrusion adapted to the second external connection extension, and each first welding protrusion, each second welding protrusion and each third welding protrusion are staggered in the radial direction.

[0018] Compared with the prior art, the advantages of the present invention are as follows: by providing corresponding outwardly or inwardly extending connection extensions on the conductive sheet and corresponding welding protrusions on the plastic fixing plate, the conductive sheet and the plastic fixing plate can be fixed by ultrasonic welding. This structural design is simple, the cost is relatively low, the processing effect is high, and the reliability of the connection between the two can be guaranteed. In particular, the above-mentioned structural design makes the ultrasonic welding point located on the outside or inside of the conductive sheet body, avoiding the overflow of glue during the welding process from falling on the conductive sheet body, and will not have an adverse effect on the conductive effect of the conductive sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the conductive sheet fixing structure of the cable reel according to an embodiment of the present utility model;

[0020] Figure 2 A top view of the conductive sheet fixing structure of the cable reel according to an embodiment of the present invention;

[0021] Figure 3 This is an exploded view of the conductive sheet fixing structure of the cable reel according to an embodiment of the present invention;

[0022] Figure 4 This is a sectional perspective view of the conductive sheet fixing structure of the cable reel according to an embodiment of the present invention, cut along the axial direction;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the cable reel according to an embodiment of the present utility model;

[0024] Figure 6 This is an exploded view of the cable reel according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0026] In the specification and claims of the present invention, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0027] Figures 1-6 A preferred embodiment of the conductive sheet fixing structure and cable reel of the present invention is shown. The cable reel comprises a housing 30 and a cable reel 32 rotatably mounted within the housing 30. A power cord 31 is wound around the cable reel 32, which tightens or loosens the power cord 31 as it rotates forward or backward. A conductive sheet 2 is mounted on the end wall of the cable reel 32 and is ultrasonically welded to the end wall. The end wall of the cable reel 32 also serves as the plastic fixing disc 10 that serves as the conductive sheet fixing structure of this embodiment.

[0028] The conductive sheet 2 is annular in shape and is mounted on the sidewall of the plastic fixing disk 10. The conductive sheet 2 includes a conductive sheet body 20 and at least two connecting extensions arranged in sequence along the circumference of the conductive sheet body 20 and extending outward or inward from the conductive sheet body 20. Each connecting extension is provided with a connection hole, and the sidewall of the plastic fixing disk 10 is provided with at least two welding protrusions arranged in sequence along the circumference and extending upward. Each welding protrusion passes through a corresponding connection hole on the conductive sheet 2, with its top exposed relative to the connection hole to facilitate connection of the two by ultrasonic welding. The connection hole on the conductive sheet 2 can be a closed hole that passes through from top to bottom, or a non-closed hole with a notch or opening in the circumferential direction. To ensure the overall strength of the conductive sheet 2, the connection holes are preferably closed holes.

[0029] There are two conductive sheets 2 on the end wall of the wire reel 32, namely the first conductive sheet 21 and the second conductive sheet 22. The two conductive sheets 2 are arranged in sequence along the radial direction and are used to adapt and connect with the conductive parts of the positive and negative electrodes of the winding reel. Among them, the second conductive sheet 22 is larger than the first conductive sheet 21 and is located on the outside of the first conductive sheet 21.

[0030] The two conductive sheets 2 include a conductive sheet body 20 and an external connection extension extending outward from the conductive sheet body 20 or an internal connection extension extending inward from the conductive sheet body 20. Specifically, the first conductive sheet 21 is provided with only an external connection extension extending outward from the conductive sheet body 20 of the first conductive sheet 21. This external connection extension is referred to as a first external connection extension 211, and a connection hole on the first external connection extension 211 is referred to as a third connection hole 2110. The second conductive sheet 22 has both an external connection extension portion extending outward from the conductive sheet body 20 of the second conductive sheet 22, and an internal connection extension portion extending outward from the conductive sheet body 20 of the second conductive sheet 22, wherein the external connection extension portion on the second conductive sheet 22 is recorded as the second external connection extension portion 221, and the internal connection extension portion on the second conductive sheet 22 is recorded as the second internal connection extension portion 222, the connection hole position on the above-mentioned second external connection extension portion 221 is recorded as the first connection hole position 2210, and the connection hole position on the above-mentioned second internal connection extension portion 222 is recorded as the second connection hole position 2220.

[0031] The plastic fixing plate 10 of this embodiment is provided with a first welding protrusion 11 adapted to the first outer connecting extension 211, a second welding protrusion 12 adapted to the first inner connecting extension, and a third welding protrusion 13 adapted to the second outer connecting extension 221. The first welding protrusions 11, the second welding protrusions 12, and the third welding protrusions 13 are staggered in the radial direction. Similarly, it can be understood that the first outer connecting extensions 211 on the first conductive sheet 21, the second outer connecting extensions 221 on the second conductive sheet 22, and the second inner connecting extensions 222 on the second conductive sheet 22 are also staggered in the radial direction. Specifically, Figure 3 It is shown that three first outer connection extensions 211 are provided on the first conductive sheet 21 , and three second outer connection extensions 221 and three second inner connection extensions 222 are provided on the second conductive sheet 22 .

[0032] See also Figure 3 The top of each welding protrusion on the plastic fixing plate 10 of this embodiment is configured as a pointed structure with a gradually decreasing size from bottom to top. Generally speaking, the cross-section of the welding protrusion can be circular, strip-shaped, or other structures. In a preferred embodiment, the welding protrusion is entirely sheet-shaped, and the width of the pointed structure at the top of the welding protrusion gradually decreases from bottom to top. The pointed structure of the top of the welding protrusion facilitates the smooth placement of the conductive sheet 2 on the corresponding welding protrusion (i.e., it serves as a guide) and also reduces glue overflow caused by excessive material on the top during welding.

[0033] In this embodiment, corresponding outwardly or inwardly extending connection extensions are provided on the conductive sheet 2, and corresponding welding protrusions are provided on the plastic fixing plate 10, so that the conductive sheet 2 and the plastic fixing plate 10 can be fixed by ultrasonic welding. This structural design is simple, relatively low in cost, high in processing effect, and can ensure the reliability of the connection between the two. In particular, the above-mentioned structural design enables the ultrasonic welding point to be located on the outside or inside of the conductive sheet body 20, thereby preventing glue overflow during the welding process from falling on the conductive sheet body 20, and will not have a negative impact on the conductive effect of the conductive sheet 2.

[0034] The installation process of the conductive sheet 2 of the cable reel of this embodiment is as follows:

[0035] The first conductive sheet 21 and the second conductive sheet 22 are placed into the plastic fixing plate 10. The welding protrusions on the plastic fixing plate 10 pass through the connection holes of the corresponding conductive sheets 2, so that their top ends are exposed as ultrasonic welding points. Then, the plastic fixing plate 10 is placed in the mold on the ultrasonic welding station. The ultrasonic head moves up and down to generate waves to form welding points, thereby fixing the first conductive sheet 21 and the second conductive sheet 22. The welding points on the wave generating head on the ultrasonic welding equipment correspond one to one with the welding protrusions on the plastic fixing plate 10.

Claims

1. A conductive sheet fixing structure, comprising: Plastic fixing plate (10); The conductive sheet (2) is annular as a whole and is arranged on the side wall of the plastic fixed disk (10), and is characterized in that: the conductive sheet (2) includes a conductive sheet body (20) and at least two connecting extensions arranged in sequence along the circumference of the conductive sheet body (20) and extending outward or inward from the conductive sheet body (20), each of the connecting extensions is provided with a connecting hole, and the side wall of the plastic fixed disk (10) is provided with at least two welding protrusions arranged in sequence along the circumference and extending upward, each of the welding protrusions passes through the corresponding connecting hole on the conductive sheet (2), and its top is exposed relative to the connecting hole so that the two are suitable for being connected by ultrasonic welding.

2. The conductive sheet fixing structure according to claim 1, wherein: The connection extension portion includes at least two external connection extension portions extending outward from the outer peripheral wall of the conductive sheet body (20), each of the external connection extension portions correspondingly having a first connection hole position (2210), and the welding protrusion on the side wall of the plastic fixing plate (10) includes at least two first welding protrusions (11) correspondingly matched with each first connection hole position (2210).

3. The conductive sheet fixing structure according to claim 2, wherein: The connection extension portion also includes at least two inner connection extension portions extending inward from the inner peripheral wall of the conductive sheet body (20), each of the inner connection extension portions correspondingly having a second connection hole position (2220), and the welding protrusion on the side wall of the plastic fixing plate (10) includes at least two second welding protrusions (12) correspondingly matched with each second connection hole position (2220).

4. The conductive sheet fixing structure according to claim 3, wherein: Each of the outer connection extension portions and each of the inner connection extension portions are arranged in a staggered manner with respect to a radial extension direction of the conductive sheet body (20).

5. The conductive sheet fixing structure according to any one of claims 1 to 4, characterized in that: The top end of the welding protrusion is configured as a pointed structure whose size gradually decreases from bottom to top.

6. The conductive sheet fixing structure according to claim 5, wherein: The welding protrusion is in the shape of a sheet as a whole, and the width of the pointed structure at the top of the welding protrusion gradually decreases from bottom to top.

7. A cable reel comprising a cable reel (32) for winding a power cord (31) and capable of rotating about its own axis, and a conductive sheet (2) provided on the cable reel (32), characterized in that: The conductive sheet (2) is connected to the wire drum (32) using the conductive sheet fixing structure according to any one of claims 1 to 6, and the wire drum (32) constitutes the plastic fixing disk (10).

8. The cable reel according to claim 7, wherein: There are two conductive sheets (2) on the wire drum (32), namely a first conductive sheet (21) and a second conductive sheet (22) arranged in sequence along the radial direction, and the second conductive sheet (22) is located outside the first conductive sheet (21).

9. The cable reel according to claim 8, wherein: The first conductive sheet (21) has a first external connection extension portion (211) extending outward from the conductive sheet body (20) of the first conductive sheet (21), the second conductive sheet (22) has a second external connection extension portion (221) extending outward from the conductive sheet body (20) of the second conductive sheet (22) and a second internal connection extension portion (222) extending inward from the conductive sheet body (20) of the second conductive sheet (22), the plastic fixing plate (10) is provided with a first welding protrusion (11) adapted to the first external connection extension portion (211), a second welding protrusion (12) adapted to the first internal connection extension portion, and a third welding protrusion (13) adapted to the second external connection extension portion (221), and each first welding protrusion (11), each second welding protrusion (12), and each third welding protrusion (13) are staggered in the radial direction.

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