A housing of an LED driver

Abstract

The utility model discloses a shell of an LED driver, comprising a metal shell and an NFC structural member of a non-metallic material, the shell comprising a first end cover and a second end cover, and the first end cover and the second end cover are respectively located at two ends of the metal shell in a first direction, and a first through hole is provided on the first end cover; the NFC structural member comprises a first component and a second component, the first component comprises a closed portion, an opening portion and a boss located between the closed portion and the opening portion, the second component is used to fix the opening portion penetrated through the first through hole, so that the boss abuts against the first end cover and the closed portion is located outside the first end cover, the first component cannot rotate relative to the first through hole, a guide component is provided inside the first component to clamp the circuit board of the NFC module, and the second component is provided with a retaining ring to limit the clamped circuit board from being separated from the first component, thereby solving the waterproof problem of the NFC module, limiting the movement and rotation of the circuit board, and ensuring the wireless communication effect.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a housing of an LED driver. Background Art

[0002] In the field of lighting, NFC (Near Field Communication) technology is used in LED (Light Emitting Diode) drivers by taking advantage of its low cost, low power consumption, and ease of use. By setting an NFC module in the driver and communicating with the NFC module inside the driver through the NFC control device, the output parameters of the driver can be adjusted. In this way, only drivers with the same power level need to be produced to meet different output parameters to match the lighting requirements of different LED lamps, which helps to reduce driver inventory. Usually, since LED drivers need to have good heat dissipation and high IP levels, metal housings are the first choice. Therefore, a structure for placing the NFC module needs to be designed on the metal housing to facilitate communication between the NFC module and the NFC control device.

[0003] The structure for placing the NFC module needs to be able to fix the NFC module. For example, during the assembly process, the NFC module is pulled out of the structure and into the metal shell, or is rotated during the assembly process so that the NFC module faces the other side opposite to the NFC control device during communication. These will affect the communication quality between the NFC module and the external NFC control device. At the same time, the waterproof problem of the structure is also a problem that needs to be solved.

[0004] Therefore, how to provide a housing of an LED driver to at least partially solve the above problems so that the NFC module can function normally is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0005] The utility model aims to provide a housing of an LED driver, which can prevent moisture from contacting an NFC module, avoid the NFC module from being rotated during the assembly process when entering a metal shell, and ensure the communication quality between the NFC module and an external NFC control device.

[0006] To achieve the above object, the utility model provides a housing of an LED driver, comprising:

[0007] The metal shell comprises a first end cover and a second end cover, wherein the first end cover and the second end cover are respectively located at two ends of the metal shell in a first direction, and a first through hole is provided on the first end cover;

[0008] An NFC structural part made of non-metallic material includes a first component and a second component. The first component includes a closed portion, an opening portion and a boss located between the closed portion and the opening portion. The second component is used to fix the opening portion that is penetrated through the first through hole so that the boss abuts against the first end cover and the closed portion is located outside the first end cover. After the first through hole is penetrated through the opening portion, the first component cannot rotate relative to the first through hole. A guide component is provided inside the first component to clamp the circuit board of the NFC module. The second component is provided with a retaining ring to limit the clamped circuit board from detaching from the first component.

[0009] Preferably, the circumferential surface of the opening portion includes a first end face and a second end face opposite to each other, the first through hole includes a through hole portion for the opening portion to pass through, a first abutting portion and a second abutting portion located on both sides of the through hole portion and used to abut the outer periphery of the opening portion, the first abutting portion abuts against the first end face, the second abutting portion abuts against the second end face, the first end face and the second end face are parallel to each other, and the length of the first end face in the second direction is greater than the length of the second end face in the second direction, and the second direction is perpendicular to the first direction.

[0010] Preferably, there are two groups of guide components, and the two groups of guide components are respectively arranged on the inner wall of the first component in the second direction, and the guide components each include two adjacent and spaced guide members, and a receiving groove for accommodating the circuit board is provided between the two adjacent guide members, and the end of the guide component close to the second end cover in the first direction is provided with a flared portion connected to the receiving groove for the circuit board to enter the receiving groove.

[0011] Preferably, the distance between two adjacent guide members gradually increases in a direction approaching the second end cover.

[0012] Preferably, the end surfaces of two adjacent guide members facing each other are parallel to each other.

[0013] Preferably, the retaining ring is located at an end of the second component away from the first end cover, and a second through hole for glue pouring is provided in the middle of the retaining ring.

[0014] Preferably, a diameter of the second through hole is smaller than a length of the mounted circuit board in the second direction.

[0015] Preferably, a sealing ring is provided between the boss and the first end cover.

[0016] Preferably, the opening portion is further provided with an external thread connected to the first end face and the second end face, and the second component is provided with an internal thread adapted to the external thread, so that the first component and the second component connected by threads are relatively detachable.

[0017] Preferably, the first end cover and the second end cover are both connected to the housing via fixing members.

[0018] With respect to the above-mentioned background technology, the housing of the LED driver provided by the utility model includes a metal shell and an NFC structural part made of non-metallic material, the metal shell includes a first end cover and a second end cover, and the first end cover and the second end cover are respectively located at two ends of the metal shell in the first direction, and a first through hole is provided on the first end cover; the NFC structural part made of non-metallic material includes a first component and a second component, the first component includes a closed portion, an opening portion and a boss located between the closed portion and the opening portion, the second component is used to fix the opening portion penetrated by the first through hole, so that the boss abuts against the first end cover and the closed portion is located on the outside of the first end cover, after the first through hole is penetrated by the opening portion, the first component cannot rotate relative to the first through hole, a guide component is provided inside the first component to clamp the circuit board of the NFC module, and the second component is provided with a retaining ring to limit the clamped circuit board from detaching from the first component.

[0019] Specifically, the circuit board of the NFC module is clamped by the guide component provided in the first component, and the movement of the circuit board in the first component is limited by the retaining ring of the second component. The opening of the first component is passed through the first through hole and then fixed by the second component, so that the boss of the first component abuts against the first end cover. At this time, only the closing part and the boss of the first component are located on the outside of the first end cover, which can prevent moisture from entering the inside of the first component along the outside. The first component can be installed through the first through hole. The rotation relative to the first end cover avoids the NFC module from being rotated during the assembly process when it enters the metal shell, and can ensure the communication quality between the NFC module and the external NFC control device. In this way, a protruding non-metallic NFC module structural part is provided on the first end cover to accommodate the NFC module, which solves the waterproof problem of the NFC module inside and outside the driver housing, limits the axial movement, radial movement and rotation of the NFC module, and ensures the wireless communication effect and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 An exploded view of a housing provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the structure of the NFC structural component provided by an embodiment of the utility model;

[0023] Figure 3 A partial cross-sectional view of an assembled housing provided by an embodiment of the utility model;

[0024] Figure 4 A partial cross-sectional view from another perspective of the assembled housing provided by an embodiment of the utility model;

[0025] Figure 5 A cross-sectional view of a first component provided by an embodiment of the utility model;

[0026] Figure 6 A schematic structural diagram of the first component provided in an embodiment of the utility model.

[0027] in:

[0028] 100 - housing, 110 - first end cover, 111 - first through hole, 120 - second end cover;

[0029] 200-first component, 210-boss, 220-closing portion, 230-opening portion, 231-first end surface, 232-second end surface, 240-guide member, 250-accommodating groove, 260-expanding portion, 270-sealing ring;

[0030] 300 - second component, 310 - retaining ring, 320 - second through hole;

[0031] 400-PCB board;

[0032] 500-Fixers. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] In the description of the present invention, it should be understood that the terms "outside" and "inside" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation of the present invention.

[0036] The utility model aims to provide a housing of an LED driver, which can prevent moisture from contacting an NFC module, avoid the NFC module from being rotated during the assembly process when entering a metal shell, and ensure the communication quality between the NFC module and an external NFC control device.

[0037] It should be noted that, in this embodiment, the X direction in the drawings is defined as the first direction, and the Y direction is defined as the second direction, and the first direction and the second direction are perpendicular to each other.

[0038] See also Figure 1 and Figure 2 To achieve the above-mentioned purpose, the utility model provides a housing of an LED driver, including a metal housing 100 and a NFC structural member made of non-metallic material.

[0039] The metal shell 100 includes a first end cover 110 and a second end cover 120 , and the first end cover 110 and the second end cover 120 are respectively located at two ends of the metal shell 100 in a first direction. The first end cover 110 is provided with a first through hole 111 .

[0040] In this embodiment, the cross-section of the shell 100 perpendicular to the first direction is preferably square. After the first end cover 110 and the second end cover 120 located at the two ends in the first direction are installed, the shell 100, the first end cover 110 and the second end cover 120 form a sealed structure with an accommodating space, and the accommodating space can accommodate the electronic module of the LED driver, wherein the first end cover 110 and the second end cover 120 are both provided with a plurality of through holes for wiring.

[0041] The non-metallic NFC structural member includes a first component 200 and a second component 300. The first component 200 includes a closed portion 220, an opening portion 230, and a boss 210 located between the closed portion 220 and the opening portion 230. The second component 300 is used to fix the opening portion 230 that is penetrated through the first through hole 111, so that the boss 210 abuts against the first end cover 110 and the closed portion 220 is located outside the first end cover 110. After the opening portion 230 penetrates the first through hole 111, the first component 2 00 cannot rotate relative to the first through hole 111, a guide component is provided inside the first component 200 to clamp the circuit board 400 of the NFC module, and the second component 300 is provided with a retaining ring 310 to limit the clamped circuit board 400 from being separated from the first component 200, and the retaining ring 310 is located at the end of the second component 300 away from the first end cover 110, and a second through hole 320 for glue filling is provided in the middle of the retaining ring 310, and the diameter of the second through hole 320 is smaller than the length of the installed circuit board 400 in the second direction.

[0042] The NFC structural part is made of non-metallic material, so that the NFC module can communicate with the external NFC control device. After assembly, the closing portion 220 and the boss 210 of the first component 200 are located outside the metal shell (outside the accommodation space of the above-mentioned sealing structure), that is, the boss 210 abuts against the outer surface of the first end cover 110; the opening portion 230 of the first component 200 and the second component 300 are both located inside the metal shell (inside the accommodation space of the above-mentioned sealing structure).

[0043] It should be noted that the closing portion 220 located on one side of the boss 210 only has an opening connected to the opening portion 230, so that the closing portion 220 of the first component 200 after installation is completely closed relative to the outside of the boss 210, and the opening portion 230 located on the other side of the boss 210 is inserted into the accommodating space inside the shell 100, and is connected to the accommodating space through the second through hole 320.

[0044] When the LED driver is glued, the electronic module of the LED driver is assembled inside the metal shell 100, and the NFC module is assembled in the NFC structural component of non-metallic material. The NFC structural component is assembled on the metal shell 100 together with the first end cover 110, and glue is poured from the other open end of the metal shell 100 (the end where the second end cover 120 is not assembled), and the NFC structural component is also glued through the second through hole 320, thereby solving the waterproof problem of the NFC structural component inside the driver.

[0045] See also Figure 3 and Figure 4 The circuit board 400 of the NFC module is clamped by the guide component provided in the first component 200, and the movement of the circuit board 400 in the first component 200 is limited by the retaining ring 310 of the second component 300. The opening portion 230 of the first component 200 is passed through the first through hole 111 and then fixed by the second component 300, so that the boss 210 of the first component 200 abuts against the first end cover 110. At this time, only the closing portion 220 and the boss 210 of the first component 200 are located on the outside of the first end cover 110, which can prevent moisture from entering the first component 200 along the outside. The first through hole 111 can limit the rotation of the installed first component 200 relative to the first end cover 110, thereby preventing the NFC module from being rotated during the assembly process in the metal shell, and ensuring the communication quality between the NFC module and the external NFC control device.

[0046] In other words, by providing a protruding non-metallic component on the first end cover 110 for accommodating the NFC module, the waterproof problem of the NFC module inside and outside the driver housing is solved, the axial movement, radial movement and rotation of the NFC module are restricted, and the wireless communication effect and production efficiency are ensured.

[0047] Preferably, the circumferential surface of the opening portion 230 includes a first end face 231 and a second end face 232 opposite to each other, and the first through hole 111 includes a through hole portion for the opening portion 230 to pass through, a first abutting portion and a second abutting portion located on both sides of the through hole portion and used to abut the outer periphery of the opening portion 230, the first abutting portion abuts against the first end face 231, the second abutting portion abuts against the second end face 232, the first end face 231 and the second end face 232 are parallel to each other, and the length of the first end face 231 in the second direction is greater than the length of the second end face 232 in the second direction, and the second direction is perpendicular to the first direction.

[0048] It should be noted that the circumferential surface of the opening portion 230 includes a first end face 231 and a second end face 232 that are opposite to each other. The first end face 231 and the second end face 232 are two parallel planes, and the first abutting portion abuts against the first end face 231, and the second abutting portion abuts against the second end face 232. The first end face 231 and the second end face 232 have different lengths in the second direction. While limiting the rotation of the first component 200, it can also play an anti-foolproof role during assembly to prevent the operator from reversely installing the first component 200 with the circuit board 400 installed, thereby preventing the NFC module from facing the other side opposite to the NFC control device during communication.

[0049] Among them, it is preferred that the length of the first end surface 231 in the second direction is greater than the length of the second end surface 232 in the second direction. The specific length value can be adjusted according to actual conditions and is not specifically limited here, as long as the above purpose can be achieved.

[0050] It should be noted that the first through hole 111 including a through hole portion, a first abutting portion and a second abutting portion has a cross-sectional shape perpendicular to the first direction including two parallel secants and two arcs connected to the two ends of the secants, the two parallel secants are of different lengths and respectively abut against the first end face 231 and the second end face 232. In addition, a sealing ring 270 is provided between the boss 210 and the first end cover 110, and the sealing ring 270 is similar to the cross-sectional shape of the first through hole 111 perpendicular to the first direction, so as to realize the penetration of the first component 200 while increasing the waterproof effect of the first component 200 and the first end cover 110.

[0051] See also Figure 5 and Figure 6 Preferably, there are two groups of guide components, and the two groups of guide components are respectively arranged on the inner wall of the first component 200 in the second direction. The guide components include two adjacent and spaced guide members 240, and a receiving groove 250 for receiving the circuit board 400 is provided between the two adjacent guide members 240. The end of the guide component close to the second end cover 120 in the first direction is provided with a flared portion 260 connected to the receiving groove 250 for the circuit board 400 to enter the receiving groove 250.

[0052] In this embodiment, there are two groups of guide components, and each includes two adjacent and spaced-apart guide members 240. The two groups of guide components are arranged on the inner wall of the first component 200 in the second direction, so that the distance between the two groups of guide components is as large as possible to meet the outer dimensions of the circuit board 400. The two adjacent guide members 240 form a receiving groove 250 capable of accommodating the end of the circuit board 400 through the facing end faces and the inner wall of the first component 200, and the end of the receiving groove 250 close to the second end cover 120 is connected to the flared portion 260 with a larger opening to facilitate the circuit board 400 to enter the receiving groove 250.

[0053] In one embodiment, the distance between two adjacent guide members 240 gradually increases in the direction close to the second end cover 120, and the minimum distance between the two guide members 240 is slightly larger than the width of the circuit board 400 in this direction, so as to achieve the clamping fixation of the circuit board 400. In another embodiment, the end surfaces of two adjacent guide members 240 facing each other are preferably parallel to each other, that is, the distance between the two adjacent guide members 240 is consistent and slightly larger than the width of the circuit board 400 in this direction. In addition, the distance between the inner wall of the bottom of the closing portion 220 and the retaining ring 310 in the first direction should be consistent with the length of the circuit board 400 in the first direction, so that the fixed circuit board 400 is relatively stable.

[0054] Preferably, the opening portion 230 is further provided with an external thread connected to the first end face 231 and the second end face 232, and the second component 300 is provided with an internal thread adapted to the external thread, so that the first component 200 and the second component 300 connected by threads are relatively detachable.

[0055] In addition, an external thread is provided in the circumference of the opening portion 230, and the external thread is connected to the first end face 231 and the second end face 232. The second component 300 is provided with an internal thread adapted to the external thread, so that the first component 200 threadedly connected by the second component 300 is relatively fixed, and the first component 200 and the second component 300 are relatively detachable, so as to facilitate the installation and disassembly of the circuit board 400 and increase work efficiency.

[0056] Preferably, the first end cover 110 and the second end cover 120 are both connected to the housing 100 via a fixing member 500 .

[0057] It can be understood that circular holes are provided around the first end cover 110 and the second end cover 120 , and the first end cover 110 and the second end cover 120 are detachably connected to the housing 100 by passing the fixing members 500 through the corresponding circular holes.

[0058] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0059] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0060] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A housing of an LED driver, characterized in that: include: A metal shell (100) comprising a first end cover (110) and a second end cover (120), wherein the first end cover (110) and the second end cover (120) are respectively located at two ends of the shell (100) in a first direction, and the first end cover (110) is provided with a first through hole (111); A non-metallic NFC structural component comprises a first component (200) and a second component (300), wherein the first component (200) comprises a closed portion (220), an opening portion (230) and a boss (210) located between the closed portion (220) and the opening portion (230), and the second component is used to fix the opening portion (230) which is penetrated through the first through hole (111), so that the boss (210) abuts against the first end cover (110) and the closed portion (220) is located outside the first end cover (110); after the opening portion (230) is penetrated through the first through hole (111), the first component (200) cannot rotate relative to the first through hole (111); a guide component is provided inside the first component (200) to clamp a circuit board (400) of an NFC module; and the second component (300) is provided with a retaining ring (310) to prevent the clamped circuit board (400) from detaching from the first component (200).

2. The housing of the LED driver according to claim 1, characterized in that: The circumferential surface of the opening portion (230) comprises a first end face (231) and a second end face (232) which are arranged opposite to each other. The first through hole (111) comprises a through hole portion for the opening portion (230) to pass through, a first abutting portion and a second abutting portion which are located on both sides of the through hole portion and are used to abut against the outer periphery of the opening portion (230). The first abutting portion abuts against the first end face (231), and the second abutting portion abuts against the second end face (232). The first end face (231) and the second end face (232) are parallel to each other, and the length of the first end face (231) in the second direction is greater than the length of the second end face (232) in the second direction. The second direction is perpendicular to the first direction.

3. The housing of the LED driver according to claim 2, characterized in that: The guide components are divided into two groups, and the two groups of guide components are respectively arranged on the inner wall of the first component (200) in the second direction. The guide components each include two adjacent and spaced guide members (240), and a receiving groove (250) for receiving the circuit board (400) is provided between the two adjacent guide members (240). An end of the guide component close to the second end cover (120) in the first direction is provided with a flared portion (260) connected to the receiving groove (250) for the circuit board (400) to enter the receiving groove (250).

4. The housing of the LED driver according to claim 3, characterized in that: The distance between two adjacent guide members (240) gradually increases in a direction approaching the second end cover (120).

5. The housing of the LED driver according to claim 3, characterized in that: The end surfaces of two adjacent guide members (240) facing each other are parallel to each other.

6. The housing of the LED driver according to claim 2, characterized in that: The retaining ring (310) is located at an end of the second component (300) away from the first end cover (110), and a second through hole (320) for glue injection is provided in the middle of the retaining ring (310).

7. The housing of the LED driver according to claim 6, characterized in that: The diameter of the second through hole (320) is smaller than the length of the mounted circuit board (400) in the second direction.

8. The housing of the LED driver according to claim 1, characterized in that: A sealing ring (270) is provided between the boss (210) and the first end cover (110).

9. The housing of the LED driver according to claim 2, characterized in that: The opening portion (230) is further provided with an external thread connected to the first end surface (231) and the second end surface (232), and the second component (300) is provided with an internal thread adapted to the external thread, so that the first component (200) and the second component (300) connected via threads are relatively detachable.

10. The housing of the LED driver according to any one of claims 1 to 9, characterized in that: The first end cover (110) and the second end cover (120) are both connected to the housing (100) via a fixing member (500).

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