Limiting device, power supply cable of electrical equipment and electrical equipment
Through the combined structure of the limit ring and the mounting member, it is embedded in the cable body and the mounting member, which solves the problem of easy separation of the limit device, realizes a stable connection between the power supply cable and the circuit board, and ensures the reliability of power supply.
Patent Information
- Application Number
- CN202422053034.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing limiting device is easily separated from the power supply cable, affecting the connection stability of the power supply cable and the circuit board.
Adopting a combined structure of a limit ring and a mounting member, the first and second limit protrusions are provided on the limit ring respectively embedded in the cable body and the mounting member, and the stable connection between the limit ring and the cable body and the mounting member is ensured through hot pressing connection.
It improves the connection stability of the power supply cable and the circuit board, reduces the possibility of the cable being disconnected from the limit device, and ensures the stability of power supply.
Smart Images
Figure CN223273768U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electrical equipment design, and specifically relates to a limiting device, a power supply cable for electrical equipment, and electrical equipment. Background Art
[0002] Electrical equipment such as lighting fixtures are provided with a power supply cable for electrically connecting to external cables. The power supply cable can supply power to the light-emitting element through the circuit board inside the lighting fixture, that is, the power supply cable is electrically connected to the circuit board to enable the lighting fixture to have a light-emitting function.
[0003] In order to prevent the power supply cable from pulling the circuit board after being subjected to force, thereby affecting the connection stability between the power supply cable and the circuit board, a limiting device, such as a wire clip, is provided in the lighting fixture. The limiting device is sleeved on the outside of the power supply cable and is bonded to the power supply cable by adhesive or hot pressing. At the same time, the limiting device is installed on the chassis of the lighting fixture to limit the movement of the power supply cable. However, after long-term use, the power supply cable is still easy to detach from the limiting device. Other electrical equipment also have such problems.
[0004] In summary, the limiting device involved in the related art has the problem of being easily separated from the power supply cable. Utility Model Content
[0005] The present application discloses a limiting device, a power supply cable for an electrical device, and the electrical device, so as to solve the problem in related arts that the limiting device is easily separated from the power supply cable.
[0006] In order to solve the above technical problems, this application adopts the following technical solutions:
[0007] A limiting device is used to be connected to the cable body of a power supply cable, the limiting device comprising a mounting member and a limiting ring,
[0008] The limiting ring is used to be sleeved on the outside of the cable body, the mounting piece is used to be installed on the shell of the electrical equipment, and the mounting piece is sleeved outside the limiting ring, the limiting ring is provided with a first limiting protrusion protruding toward the cable body, and the limiting ring is provided with a second limiting protrusion protruding toward the mounting piece, the first limiting protrusion and the second limiting protrusion are spaced apart in the circumferential direction of the limiting ring, and the first limiting protrusion is used to be embedded in the cable body, and the second limiting protrusion is used to be embedded in the mounting piece.
[0009] A power supply cable for an electrical device is used to electrically connect to a circuit board of the electrical device. The power supply cable includes a cable body and the limiting device described above. The limiting device is sleeved outside the cable body and connected to the cable body. One end of the cable body is used to electrically connect to the circuit board, and the other end of the cable body is used to pass through the casing of the electrical device and electrically connect to an external cable.
[0010] An electrical device, which is a lighting fixture, includes a housing, a circuit board, a light-emitting component and the power supply cable described above, a chassis is provided in the housing, the circuit board and the light-emitting component are both provided on the chassis, and the cable body and the light-emitting component are both electrically connected to the circuit board, and the cable body is mounted on the chassis via the limiting device.
[0011] The technical solution adopted in this application can achieve the following beneficial effects:
[0012] In the present application, since the first limiting protrusion of the limiting ring is embedded in the cable body, and the second limiting protrusion of the limiting ring is embedded in the mounting member, this allows the limiting ring to limit the relative movement of the mounting member and the cable body while connecting the cable body and the mounting member, thereby limiting the relative movement of the limiting device and the cable body. It can be seen that this arrangement makes it difficult for the power supply cable to separate from the limiting device, thereby ensuring the stability of the connection between the power supply cable and the circuit board. Therefore, the limiting device disclosed in the present application can solve the problem of the limiting device in the related art being easily separated from the power supply cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic cross-sectional view of the power supply cable disclosed in an embodiment of the present application;
[0014] Figure 2 for Figure 1 A partial enlarged schematic diagram of the limiting device;
[0015] Figure 3 This is a schematic diagram of a top-down cross-sectional structure of a power supply cable at a limiting device disclosed in an embodiment of the present application;
[0016] Figure 4 and Figure 5 This is a schematic diagram of the external structure of the power supply cable disclosed in the embodiment of the present application;
[0017] Figure 6 A schematic cross-sectional view of an electrical device (e.g., a lighting fixture) disclosed in an embodiment of the present application;
[0018] Figure 7 for Figure 6 A magnified schematic diagram of point A in the middle;
[0019] Figures 8 to 10 Schematic diagram of the structure of the limit ring disclosed in the embodiment of this application at different viewing angles.
[0020] Description of reference numerals:
[0021] 100 - power supply cable, 110 - cable body, 111 - protective cover, 112 - current transmission line, 113 - grounding line, 114 - connection part;
[0022] 200-mounting part, 210-guide slope, 220-cross section, 230-limiting groove, 240-limiting plate;
[0023] 300-limiting ring, 310-first limiting protrusion, 311-first opening, 320-second limiting protrusion, 321-second opening, 330-third opening;
[0024] 410 - chassis, 411 - mounting hole, 412 - annular limiting protrusion, 420 - circuit board, 430 - housing, 440 - light-emitting component. DETAILED DESCRIPTION
[0025] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0026] The limiting device disclosed in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.
[0027] Please refer to Figures 1-10 The present application discloses a limiting device, which includes a mounting member 200 and a limiting ring 300 .
[0028] The limiting device disclosed in this application is used to be connected to the cable body 110 of the power supply cable 100 so that the limiting device and the cable body 110 can be limited and cooperated. Specifically, the limiting ring 300 is used to be sleeved on the outside of the cable body 110, specifically, to be sleeved on the protective cover 111 of the cable body 110. The protective cover 111 is used to protect the wires in the cable body 110 (specifically, the current transmission line 112 and the grounding line 113 described later). The protective cover 111 is usually made of plastic.
[0029] Please refer to Figure 3 、 Figures 8 to 10A third opening 330 is provided on the limiting ring 300, and the third opening 330 passes through the limiting ring 300 along the axial direction of the limiting ring 300. When the limiting ring 300 is specifically sleeved on the cable body 110, the third opening 330 can adjust the radial size of the limiting ring 300 so that the limiting ring 300 can be more easily sleeved on the cable body 110.
[0030] The mounting member 200 is used to be mounted on the housing 430 of the electrical device, and the mounting member 200 is sleeved outside the limiting ring 300. Optionally, the mounting member 200 can be a plastic mounting member 200. The limiting ring 300 is provided with a first limiting protrusion 310 protruding toward the cable body 110, and a second limiting protrusion 320 protruding toward the mounting member 200. The first limiting protrusion 310 and the second limiting protrusion 320 are spaced apart in the circumferential direction of the limiting ring 300. The first limiting protrusion 310 is used to be embedded in the cable body 110, and the second limiting protrusion 320 is used to be embedded in the mounting member 200.
[0031] The embodiment of the present application adopts a hot pressing method to connect the limiting device and the cable body 110, that is, in the specific process of connecting the limiting device and the cable body 110, an extrusion force is applied to the mounting part 200 so that the mounting part 200 squeezes the limiting ring 300. After the limiting ring 300 is pressurized, the size of the third opening 330 is reduced so that the limiting ring 300 squeezes the protective cover 111. At the same time, since the protective cover 111 and the mounting part 200 are both plastic parts, the protective cover 111 and the mounting part 200 will become soft after being heated, that is, the protective cover 111 and the mounting part 200 are easily deformed, so that the first limiting protrusion 310 is easily embedded in the protective cover 111 and is mutually limited with the protective cover 111, and the second limiting protrusion 320 is easily embedded in the mounting part 200 and is mutually limited with the mounting part 200.
[0032] In the present application, since the first limiting protrusion 310 of the limiting ring 300 is embedded in the cable body 110, and the second limiting protrusion 320 of the limiting ring 300 is embedded in the mounting member 200, the limiting ring 300 can limit the relative movement of the mounting member 200 and the cable body 110 while connecting the cable body 110 and the mounting member 200, thereby limiting the relative movement of the limiting device and the cable body 110. It can be seen that this arrangement makes it difficult for the power supply cable 100 to separate from the limiting device, thereby ensuring the stability of the connection between the power supply cable 100 and the circuit board 420. Therefore, the limiting device disclosed in the present application can solve the problem of the limiting device in the related art being easily separated from the power supply cable 100.
[0033] In addition, the overall size of the limiting device disclosed in this application is relatively small, and when the limiting device is installed in an electrical device (such as the lighting fixture described later), the space occupied by the limiting device is relatively small, that is, the installation space requirement is relatively low.
[0034] Optionally, the number of the first limiting protrusions 310 and the number of the second limiting protrusions 320 may both be one.
[0035] In another embodiment, the number of the first limiting protrusions 310 and the number of the second limiting protrusions 320 can both be at least two, each first limiting protrusion 310 is used to be embedded in the cable body 110, and each second limiting protrusion 320 is used to be embedded in the mounting member 200, that is, the embodiment of the present application connects the mounting member 200 and the cable body 110 through multiple first limiting protrusions 310 and multiple second limiting protrusions 320, and limits the mounting member 200 and the cable body 110, which can further improve the limiting ability of the limiting ring 300, that is, further prevent the cable body 110 from detaching from the limiting device.
[0036] Optionally, each first limiting protrusion 310 and each second limiting protrusion 320 can be arranged in different areas of the limiting ring 300. Specifically, the limiting ring 300 may include a first part and a second part that are connected in its circumferential direction. Each first limiting protrusion 310 can be arranged in the first part and arranged at intervals, and each second limiting protrusion 320 can be arranged in the second part and arranged at intervals.
[0037] In another embodiment, the first limiting protrusions 310 and the second limiting protrusions 320 are alternately and spaced apart in the circumferential direction of the limiting ring 300, that is, in the circumferential direction of the limiting ring 300, a second limiting protrusion 320 can be provided between two adjacent first limiting protrusions 310, and a first limiting protrusion 310 can be provided between two adjacent second limiting protrusions 320. Through this arrangement, the cable body 110 and the mounting part 200 can be subjected to a more balanced limiting force of the limiting ring 300, thereby making the limiting force of the limiting device on various parts of the cable body 110 more balanced.
[0038] Optionally, each first limiting protrusion 310 may be provided with a first opening 311, and each second limiting protrusion 320 may be provided with a second opening 321. The orientation of each first opening 311 and the orientation of each second opening 321 are both parallel to the extension direction of the cable body 110 at the limiting device, that is, each first opening 311 and each second opening 321 are opened toward the end of the limiting ring 300. In this case, the end surface of each first opening 311 can limit the cable body 110, and the end surface of each second opening 321 can limit the mounting member 200, so that the first limiting protrusion 310 can better limit the cable body 110, and the second limiting protrusion 320 can better limit the mounting member 200. Of course, each first limiting protrusion 310 may not be provided with a first opening 311, and each second limiting protrusion 320 may not be provided with a second opening 321.
[0039] Optionally, the first openings 311 of at least two of the first limiting protrusions 310 are oriented in opposite directions. Figure 2 At least two of the second limiting protrusions 320 have their second openings 321 oriented in opposite directions. In this case, different ends of different first openings 311 face different limiting directions with respect to the cable body 110, making it more difficult for the cable body 110 to escape from the limiting ring 300. Simultaneously, different ends of different second openings 321 face different limiting directions with respect to the mounting member 200, making it more difficult for the mounting member 200 to escape from the limiting ring 300, thereby making it more difficult for the cable body 110 to escape from the limiting device. Of course, the orientations of the first openings 311 and the second openings 321 can also be the same.
[0040] Optionally, adhesive may be filled between the cable body 110 and the limiting ring 300, and between the mounting member 200 and the limiting ring 300. When the adhesive is heated, part of the adhesive will enter the first openings 311 and the second openings 321 to stably bond the cable body 110, the mounting member 200, and the limiting ring 300. Of course, adhesive may not be filled between the cable body 110 and the limiting ring 300, and between the mounting member 200 and the limiting ring 300. Since the protective cover 111 and the mounting member 200 are both plastic parts, when the protective cover 111 and the mounting member 200 are heated, parts of the softened protective cover 111 and the mounting member 200 will enter the first openings 311 and the second openings 321 to stably bond the cable body 110, the mounting member 200, and the limiting ring 300.
[0041] Optionally, one end of the mounting member 200 may be provided with a guide bevel 210, which may be arranged around the mounting member 200. In this case, one end of the mounting member 200 has a tapered structure. During the process of installing the position-limiting device on the housing 430 (specifically, the chassis 410 disposed within the housing 430 as described later), the guide bevel 210 may cooperate with the housing 430, that is, with the chassis 410. Therefore, the guide bevel 210 may serve as a guide to facilitate the smooth installation of the position-limiting device. Of course, the mounting member 200 may also be provided without the guide bevel 210.
[0042] Optionally, the limiting ring 300 may be a metal limiting ring 300, i.e., the limiting ring 300 has a relatively high structural strength. When hot pressing is used to embed the first limiting protrusion 310 into the cable body 110 and the second limiting protrusion 320 into the mounting member 200, the limiting ring 300 is not easily softened by heat due to its relatively high structural strength. This makes it easier for the first limiting protrusion 310 to be embedded into the cable body 110 and the second limiting protrusion 320 to be embedded into the mounting member 200. Of course, the limiting ring 300 may also be made of other materials that are not easily deformed by heat.
[0043] Optionally, the entire mounting member 200 may be sleeved outside the limiting ring 300 , that is, the mounting member 200 may not be in contact with the cable body 110 .
[0044] In another embodiment, a portion of the mounting member 200 is sleeved outside the limiting ring 300, and another portion of the mounting member 200 is sleeved outside the cable body 110 and is connectable to the cable body 110. During the process of connecting the cable body 110, the mounting member 200, and the limiting ring 300 using a hot press method, while the first limiting protrusion 310 is embedded in the cable body 110 and the second limiting protrusion 320 is embedded in the mounting member 200, the protective cover 111 and the mounting member 200, which are made of plastic, are deformed by heat and easily adhere to each other. This increases the connection area between the limiting device and the cable body 110, thereby making the connection more stable.
[0045] Alternatively, refer to Figure 1 、 Figure 4 and Figure 5 The present application also discloses a power supply cable for an electrical device, which is used to be electrically connected to a circuit board 420 of the electrical device. The power supply cable 100 includes a cable body 110 and the limiting device mentioned above. The limiting device is sleeved on the outside of the cable body 110 and connected to the cable body 110. One end of the cable body 110 is used to be electrically connected to the circuit board 420, and the other end of the cable body 110 is used to pass through the outer casing 430 of the electrical device and be electrically connected to an external cable.
[0046] The cable body 110 may specifically include a current transmission line 112 and a grounding line 113. The current transmission line 112 is used to electrically connect to the circuit board 420. The connection portion 114 on the grounding line 113 is screwed to the housing 430 to achieve grounding, thereby protecting the circuit. The protective cover 111 described above is mounted over the current transmission line 112 and the grounding line 113 to protect the current transmission line 112 and the grounding line 113 while preventing leakage.
[0047] Alternatively, refer to Figure 6 and Figure 7 The present application also discloses an electrical device, which may be a lighting fixture. The lighting fixture may include a housing 430, a circuit board 420, a light-emitting component 440 and the power supply cable 100 described above. The housing 430 is the outer structure of the lighting fixture, which can protect the components inside the lighting fixture, such as the circuit board 420, the light-emitting component 440 and the power supply cable 100.
[0048] Specifically, a chassis 410 is provided in the shell 430, and the circuit board 420 and the light-emitting component 440 are both provided on the chassis 410, and the cable body 110 and the light-emitting component 440 are both electrically connected to the circuit board 420. The cable body 110 can supply power to the circuit board 420, and the circuit board 420 can supply power to the light-emitting component 440 to make the light-emitting component 440 emit light. The cable body 110 can be installed on the chassis 410 through a limiting device. Since the cable body 110 is not easy to separate from the limiting device, the cable body 110 is also not easy to separate from the chassis 410, which can ensure the power supply stability of the cable body 110.
[0049] Alternatively, refer to Figure 3 The cross-section 220 of the mounting member 200 has a first size and a second size. The directions of the first size and the second size intersect with the thickness direction of the lighting fixture, that is, intersect with the direction of the axis of the limiting ring 300. The first size can be larger than the second size. That is, at this time, the mounting member 200 is a special-shaped member. Correspondingly, a corresponding mounting hole 411 can be opened on the chassis 410, that is, the mounting hole 411 is a special-shaped hole, and the mounting member 200 is interference fit with the mounting hole 411.
[0050] Thus, when the mounting member 200 is installed in the mounting hole 411, the mounting member 200 will not rotate relative to the mounting hole 411, and thus the power supply cable 100 will not rotate relative to the chassis 410, thereby achieving an anti-rotation effect. At the same time, due to the interference fit between the mounting member 200 and the mounting hole 411, this can achieve the effect of stably mounting the mounting member 200 on the chassis 410. In other words, this arrangement can reduce installation costs and simplify installation steps to a certain extent. Of course, the first dimension can also be equal to the second dimension. In this case, the mounting member 200 can be stably mounted on the chassis 410 by screws to achieve an anti-rotation effect.
[0051] Optionally, the mounting member 200 can be an elliptical mounting member 200, and correspondingly, the mounting hole 411 is also an elliptical mounting hole 411. Of course, the mounting member 200 can also be a square mounting member 200, and correspondingly, the mounting hole 411 is also a square mounting hole 411. That is, the embodiment of the present application does not impose specific restrictions on this, as long as the mounting member 200 and the mounting hole 411 are special-shaped structures.
[0052] Alternatively, refer to Figure 5 and Figure 7 The mounting member 200 may be provided with a limiting groove 230 extending along the circumference of the mounting member 200, and the mounting hole 411 may be provided with an annular limiting protrusion 412. When the mounting member 200 is installed in the mounting hole 411, the annular limiting protrusion 412 and the limiting groove 230 can cooperate to limit the position in the thickness direction of the lighting fixture, thereby preventing the mounting member 200 from being separated from the mounting hole 411 along the thickness direction of the lighting fixture, thereby preventing the power supply cable 100 from being separated from the chassis 410 along the thickness direction of the lighting fixture. Of course, the mounting member 200 may not be provided with the limiting groove 230, and the mounting hole 411 may not be provided with the annular limiting protrusion 412.
[0053] Optionally, one end of the mounting member 200 may be provided with a guide bevel 210, which can guide and cooperate with the mounting hole 411. The guide bevel 210 may specifically be the guide bevel 210 described above. That is, during the installation of the mounting member 200, the guide bevel 210 can guide and cooperate with the mounting hole 411, so that the mounting member 200 can smoothly enter the mounting hole 411 and have an interference fit with the mounting hole 411. The other end of the mounting member 200 may be provided with a protruding limit plate 240. The limit plate 240 and the outer surface of the chassis 410 limit the position in the thickness direction of the lighting fixture. During the installation of the mounting member 200 in the mounting hole 411, the limit plate 240 can prevent the mounting member 200 from completely passing through the mounting hole 411. Of course, the mounting member 200 may not be provided with a protruding limit plate 240.
[0054] The above embodiments of this application focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.
[0055] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.
Claims
1. A limiting device for connecting to a cable body (110) of a power supply cable (100), characterized in that: The limiting device comprises a mounting member (200) and a limiting ring (300). The limiting ring (300) is used to be sleeved on the outside of the cable body (110), the mounting member (200) is used to be installed on the housing (430) of the electrical equipment, and the mounting member (200) is sleeved on the outside of the limiting ring (300), the limiting ring (300) is provided with a first limiting protrusion (310) protruding toward the cable body (110), and the limiting ring (300) is provided with a second limiting protrusion (320) protruding toward the mounting member (200), the first limiting protrusion (310) and the second limiting protrusion (320) are spaced apart in the circumferential direction of the limiting ring (300), and the first limiting protrusion (310) is used to be embedded in the cable body (110), and the second limiting protrusion (320) is used to be embedded in the mounting member (200).
2. The limiting device according to claim 1, characterized in that: The number of the first limiting protrusions (310) and the number of the second limiting protrusions (320) are both at least two, each of the first limiting protrusions (310) is used to be embedded in the cable body (110), and each of the second limiting protrusions (320) is used to be embedded in the mounting member (200), and each of the first limiting protrusions (310) and each of the second limiting protrusions (320) are alternately and spaced apart in the circumferential direction of the limiting ring (300).
3. The limiting device according to claim 2, characterized in that: Each of the first limiting protrusions (310) is provided with a first opening (311), and each of the second limiting protrusions (320) is provided with a second opening (321). The orientation direction of the first opening (311) and the orientation direction of the second opening (321) are both parallel to the extension direction of the cable body (110) at the limiting device, and the orientations of the first openings (311) of at least two of the first limiting protrusions (310) are opposite, and the orientations of the second openings (321) of at least two of the second limiting protrusions (320) are opposite.
4. The limiting device according to claim 1, characterized in that: The limiting ring (300) is a metal limiting ring (300).
5. The limiting device according to claim 1, characterized in that: A portion of the mounting member (200) is sleeved outside the limiting ring (300), and another portion of the mounting member (200) is used to be sleeved outside the cable body (110) and can be connected to the cable body (110).
6. A power supply cable for an electrical device, used for electrically connecting to a circuit board (420) of the electrical device, characterized in that: The power supply cable (100) includes a cable body (110) and a limiting device according to any one of claims 1 to 5, wherein the limiting device is sleeved outside the cable body (110) and is connected to the cable body (110), one end of the cable body (110) is used to be electrically connected to the circuit board (420), and the other end of the cable body (110) is used to pass through the housing (430) of the electrical equipment and be electrically connected to an external cable.
7. An electrical device, characterized in that: The electrical device is a lighting fixture, which includes a housing (430), a circuit board (420), a light-emitting component (440) and the power supply cable (100) according to claim 6, wherein a chassis (410) is provided in the housing (430), the circuit board (420) and the light-emitting component (440) are both provided on the chassis (410), and the cable body (110) and the light-emitting component (440) are both electrically connected to the circuit board (420), and the cable body (110) is mounted on the chassis (410) via the limiting device.
8. The electrical equipment according to claim 7, characterized in that: The cross section (220) of the mounting member (200) has a first size and a second size, the directions of the first size and the second size both intersect with the thickness direction of the lighting fixture, and the first size is larger than the second size, a corresponding mounting hole (411) is provided on the chassis (410), and the mounting member (200) is interference-fitted with the mounting hole (411).
9. The electrical equipment according to claim 8, characterized in that: The mounting member (200) is provided with a limiting groove (230) extending along the circumference of the mounting member (200), and the mounting hole (411) is provided with an annular limiting protrusion (412) protruding therefrom, the annular limiting protrusion (412) and the limiting groove (230) being engaged in limiting the position in the thickness direction of the lighting fixture.
10. The electrical equipment according to claim 8, characterized in that: One end of the mounting member (200) is provided with a guide bevel (210), and the guide bevel (210) can be guided and matched with the mounting hole (411); the other end of the mounting member (200) is protrudingly provided with a limit plate (240), and the limit plate (240) is matched with the outer surface of the chassis (410) in the thickness direction of the lighting fixture.