LED driving power supply capable of avoiding glue leakage

Abstract

The utility model provides an LED driving power supply capable of avoiding glue leakage, which comprises a power supply shell, plugs and a driving circuit board, the plugs are mounted at openings at two ends of the power supply shell, and the driving circuit board is mounted in the power supply shell and positioned between the two plugs; the two plugs extend towards the direction of the driving circuit board to form clamping parts, after the driving circuit board is contained in the power supply shell, the clamping parts are clamped at the two ends of the driving circuit board, and the driving circuit board is sealed at the position, between the two plugs, in the power supply shell in a glue pouring mode. According to the scheme, firstly, the two ends of the driving circuit board are directly installed on the plugs, so that the sealant of the driving circuit board is prevented from leaking to the outside from the clamping gaps of the plugs; secondly, the driving circuit board is clamped through the clamping part, so that the stress of the plug is small, and good balance can be maintained; and thirdly, the plugs are better fixed in the two ends of the power supply shell.

Description

Technical Field

[0001] This utility model belongs to the field of driver power supply technology, and specifically relates to an LED driver power supply that avoids glue leakage. Background Technology

[0002] A smart drive device is a power converter that transforms the power supply into a specific voltage and current to drive LED beads. Typically, the input of a smart drive device includes high-voltage AC (i.e., mains power), low-voltage DC, high-voltage DC, and low-voltage high-frequency AC (such as the output of an electronic transformer), while the output of a smart drive device is mostly a constant current source whose voltage can change with the forward voltage drop of the LED.

[0003] A typical LED driver power supply on the market includes: a power supply housing, plugs, and a driver circuit board. The power supply housing is usually an extruded aluminum housing. The plugs are located at the openings at both ends of the power supply housing. The openings at both ends of the power supply housing are hollowed out and bent upwards to form snap-fit ​​springs. The snap-fit ​​springs pass through the plugs and snap onto both ends of the driver circuit board. This serves two purposes: first, to fix the plugs and prevent them from coming out of the openings at both ends of the power supply housing; and second, to snap and fix the driver circuit board, making the installation of the driver circuit board convenient and quick. Then, glue is poured into the driver housing to submerge the driver circuit board, thus completing the assembly of the LED driver power supply.

[0004] However, firstly, because the snap-fit ​​spring forms a gap between the snap-fit ​​spring and the plug as it passes through the plug, the glue injected into the power supply housing will leak out from the gap, affecting product assembly and reducing factory production efficiency; secondly, because the snap-fit ​​spring will be subjected to force after snapping the driver circuit board, it will further affect the balance of the plug, and there is a certain probability that the plug will tilt to one side after assembly, affecting the sealing of the LED driver power supply and further reducing the service life of the LED driver power supply. Utility Model Content

[0005] The main objective of this invention is to provide an LED driver power supply that prevents sealant leakage. A locking portion is formed by a plug extending towards the driver circuit board. After the driver circuit board is housed in the power supply housing, the locking portion engages with both ends of the driver circuit board. The driver circuit board is then sealed within the power supply housing between the two plugs using adhesive. This solution achieves two advantages: First, since both ends of the driver circuit board are directly mounted to the plugs, sealant leakage from the plug's locking gaps is prevented. Second, because the driver circuit board is secured by the locking portion, the plug experiences less stress after installation, maintaining better balance and improving the LED driver power supply's sealing performance, thereby extending its lifespan.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] An LED driver power supply for preventing glue leakage includes: a power supply housing, plugs, and a driver circuit board. The plugs are installed at the openings at both ends of the power supply housing, and the driver circuit board is installed inside the power supply housing between the two plugs. The plugs extend towards the driver circuit board to form snap-fit ​​portions. After the driver circuit board is received in the power supply housing, the snap-fit ​​portions snap onto the two ends of the driver circuit board. The driver circuit board is sealed inside the power supply housing between the two plugs by potting glue.

[0008] As a preferred embodiment of the LED driver power supply, the snap-fit ​​part is a snap-fit ​​protrusion formed by the inner sidewall of the plug extending toward the end of the driver circuit board; the top of the snap-fit ​​protrusion is provided with a guide sliding protrusion, and after the end of the driver circuit board slides along the guide sliding protrusion to the bottom surface of the snap-fit ​​protrusion, the snap-fit ​​protrusion presses the driver circuit board against the plug.

[0009] As a preferred embodiment of the LED driver power supply, the snap-fit ​​part is an elastic snap hook that extends from the bottom inner side of the plug toward the end of the driver circuit board; snap-fit ​​through holes are provided at both ends of the driver circuit board, and the elastic snap hook passes through the corresponding snap-fit ​​through holes to snap onto the driver circuit board.

[0010] As a preferred embodiment of LED driver power supply, the bottom inner side of the plug extends toward the bottom surface of the driver circuit board to form multiple limiting protrusions, which press the driver circuit board against the snap-fit ​​portion.

[0011] As a preferred embodiment of the LED driver power supply, the inner sides of the two side walls of the power supply housing are provided with snap-fit ​​grooves, and the two sides of the plug are provided with snap-fit ​​protrusions, which snap into the snap-fit ​​grooves.

[0012] As a preferred embodiment of LED driver power supply, the two ends of the power supply housing are bent upward to form limiting protrusions, and one end of the plug is recessed inward to form a limiting groove. The limiting protrusions engage with the corresponding limiting grooves to prevent the plug from coming out of the power supply housing.

[0013] As a preferred solution for LED driver power supply, the two ends of the power supply housing are hollowed out to form fixing grooves at the positions corresponding to the limiting protrusions, and the fixing screws pass through the fixing grooves and extend into the positions to be fixed.

[0014] As a preferred embodiment of the LED driver power supply, the LED driver power supply for preventing glue leakage further includes: a housing cover plate; the housing cover plate has fixing hooks on both sides along its length direction, and the outer sides of both sides of the power supply housing have fixing slots along their length direction, and the fixing hooks engage with the fixing slots.

[0015] As a preferred embodiment of the LED driver power supply, the two ends of the housing cover are bent downward to form limiting protrusions, which abut against the power terminals of the driver circuit board to prevent the housing cover from detaching from the power supply housing.

[0016] As a preferred embodiment of the LED driver power supply, the housing cover plate is provided with multiple heat dissipation holes for heat dissipation of the driver circuit board; multiple plating holes are provided on the limiting protrusion edge for convenient suspension of the housing cover plate during electroplating.

[0017] The beneficial effects of this utility model are:

[0018] This invention proposes an LED driver power supply to prevent sealant leakage, comprising: a power supply housing, plugs, and a driver circuit board. The plugs are installed at the openings at both ends of the power supply housing, and the driver circuit board is installed inside the power supply housing between the two plugs. A snap-fit ​​portion is formed by the plugs extending towards the driver circuit board. After the driver circuit board is housed in the power supply housing, the snap-fit ​​portion snaps into the two ends of the driver circuit board. The driver circuit board is sealed inside the power supply housing between the two plugs by applying sealant. Using this solution, firstly, since the two ends of the driver circuit board are directly installed on the plugs, sealant leakage from the snap-fit ​​gaps of the plugs is prevented; secondly, because the driver circuit board is snapped in place by the snap-fit ​​portion, the force on the plugs is reduced after the driver circuit board is installed, allowing the plugs to maintain better balance, improving the sealing performance of the LED driver power supply, and thus extending its service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of the LED driver power supply for preventing glue leakage provided in Embodiment 1 of this utility model;

[0021] Figure 2 yes Figure 1The diagram shows an explosion of an LED driver power supply designed to prevent adhesive leakage.

[0022] Figure 3 yes Figure 2 The diagram shows the structural design of the power supply housing for an LED driver power supply designed to prevent adhesive leakage.

[0023] Figure 4 yes Figure 2 The diagram shows a structural schematic of an LED driver power supply plug at one angle to prevent glue leakage.

[0024] Figure 5 yes Figure 4 The diagram shows a structural schematic of the LED driver power supply plug from another angle to prevent glue leakage;

[0025] Figure 6 yes Figure 2 The diagram shows the structure of the LED driver power supply's driver circuit board to prevent adhesive leakage.

[0026] Figure 7 yes Figure 2 The diagram shows the structural design of the housing cover for the LED driver power supply to prevent adhesive leakage.

[0027] Figure 8 This is a schematic diagram of the structure of the LED driver power supply for preventing glue leakage provided in Embodiment 2 of this utility model;

[0028] Figure 9 yes Figure 8 The diagram shows an explosion of an LED driver power supply designed to prevent adhesive leakage.

[0029] Figure 10 yes Figure 9 The diagram shows a structural schematic of an LED driver power supply plug at one angle to prevent glue leakage.

[0030] Figure 11 yes Figure 10 The diagram shows another angle of the plug structure for preventing glue leakage in the LED driver power supply.

[0031] Figure 12 yes Figure 9 The diagram shows the structure of the LED driver power supply's driver circuit board to prevent adhesive leakage. Detailed Implementation

[0032] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] A smart drive device is a power converter that transforms the power supply into a specific voltage and current to drive LED beads. Typically, the input of a smart drive device includes high-voltage AC (i.e., mains power), low-voltage DC, high-voltage DC, and low-voltage high-frequency AC (such as the output of an electronic transformer), while the output of a smart drive device is mostly a constant current source whose voltage can change with the forward voltage drop of the LED.

[0034] A typical LED driver power supply on the market includes: a power supply housing, plugs, and a driver circuit board. The power supply housing is usually an extruded aluminum housing. The plugs are located at the openings at both ends of the power supply housing. The openings at both ends of the power supply housing are hollowed out and bent upwards to form snap-fit ​​springs. The snap-fit ​​springs pass through the plugs and snap onto both ends of the driver circuit board. This serves two purposes: first, to fix the plugs and prevent them from coming out of the openings at both ends of the power supply housing; and second, to snap and fix the driver circuit board, making the installation of the driver circuit board convenient and quick. Then, glue is poured into the driver housing to submerge the driver circuit board, thus completing the assembly of the LED driver power supply.

[0035] However, firstly, because the snap-fit ​​spring forms a gap between the snap-fit ​​spring and the plug as it passes through the plug, the glue injected into the power supply housing will leak out from the gap, affecting product assembly and reducing factory production efficiency; secondly, because the snap-fit ​​spring will be subjected to force after snapping the driver circuit board, it will further affect the balance of the plug, and there is a certain probability that the plug will tilt to one side after assembly, affecting the sealing of the LED driver power supply and further reducing the service life of the LED driver power supply.

[0036] Example 1

[0037] like Figure 1 and Figure 2 As shown, Embodiment 1 of this utility model provides an LED driver power supply that avoids glue leakage, which includes: a power supply housing 110, a plug 120, a driver circuit board 130, and a housing cover plate 140. The plugs 120 are installed at the openings at both ends of the power supply housing 110, the driver circuit board 130 is installed inside the power supply housing 110 between the two plugs 120, and the housing cover plate 140 is installed at the opening at the top of the power supply housing 110.

[0038] Wherein, the plug 120 extends toward the drive circuit board 130 to form a snap-fit ​​portion 121. After the drive circuit board 130 is housed in the power housing 110, the snap-fit ​​portion 121 snaps onto the two ends of the drive circuit board 130. The drive circuit board 130 is sealed in the power housing 110 between the two plugs 120 by potting glue.

[0039] In this utility model, by adopting the above solution, firstly, since both ends of the driving circuit board 130 are directly installed on the plug 120, the sealant of the driving circuit board 130 is prevented from leaking to the outside through the snap-fit ​​gap of the plug 120; secondly, since the driving circuit board 130 is snapped on by the snap-fit ​​part 121, the force on the plug 120 is small after the driving circuit board 130 is installed, thereby enabling the plug 120 to maintain better balance, improving the sealing performance of the LED driver power supply, and thus improving the service life of the LED driver power supply.

[0040] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in order to install the drive circuit board 130, the snap-fit ​​part 121 is a snap-fit ​​protrusion 121 formed by extending the inner sidewall of the plug 120 toward the end of the drive circuit board 130; the top of the snap-fit ​​protrusion 121 is provided with a guide sliding protrusion 1211. After the end of the drive circuit board 130 slides along the guide sliding protrusion 1211 to the bottom surface of the snap-fit ​​protrusion 121, the snap-fit ​​protrusion 121 presses the drive circuit board 130 against the plug 120, thereby fixing the drive circuit board 130 to the plug 120.

[0041] To limit the shaking of the drive circuit board 130, the bottom inner side of the plug 120 extends toward the bottom surface of the drive circuit board 130 to form a plurality of limiting protrusions 122. The limiting protrusions 122 press the drive circuit board 130 against the bottom surface of the snap-fit ​​protrusion 121, thereby limiting the shaking of the drive circuit board 130.

[0042] In order to install the plug 120, the inner side of the two side walls of the power housing 110 is provided with snap-fit ​​grooves 111, and the two sides of the plug 120 are provided with snap-fit ​​protrusions 123. The snap-fit ​​protrusions 123 snap into the snap-fit ​​grooves 111, thereby installing the plug 120 at the openings at both ends of the power housing 110.

[0043] In order to limit the plug 120, both ends of the power housing 110 are bent upward to form limiting protrusions 112, and one end of the plug 120 is recessed inward to form a limiting groove 124. The limiting protrusion 112 engages with the corresponding limiting groove 124 to prevent the plug 120 from coming out of the power housing 110.

[0044] In order to fix the power housing 110, fixing grooves 113 are formed at both ends of the power housing 110 at the positions corresponding to the limiting protrusions 112. The fixing screws pass through the fixing grooves 113 and extend into the position to be fixed, thereby fixing the power housing 110 in the position to be fixed.

[0045] In order to install the housing cover plate 140, the housing cover plate 140 is provided with fixing hooks 141 on both sides along its length direction, and the outer sides of both sides of the power housing 110 are provided with fixing slots 114 along its length direction. The fixing hooks 141 engage with the fixing slots 114, thereby fixing the housing cover plate 140 to the opening at the top of the power housing 110.

[0046] In order to limit the housing cover plate 140, both ends of the housing cover plate 140 are bent downward to form limiting protrusions 142. The limiting protrusions 142 abut against the power terminals 131 of the drive circuit board 130 to limit the housing cover plate 140 from detaching from the power housing 110.

[0047] To dissipate heat from the drive circuit board 130, a plurality of heat dissipation holes 143 are provided on the housing cover plate 140 for heat dissipation of the drive circuit board 130; to facilitate electroplating of the housing cover plate 140, a plurality of plating holes 144 are provided on the limiting protrusion 142 for facilitating hanging of the housing cover plate 140 during electroplating.

[0048] Example 2

[0049] like Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, Embodiment 2 of this utility model provides an LED driver power supply that avoids glue leakage. In this embodiment, the structure of the power supply housing 210 and the housing cover 240 is the same as that in Embodiment 1. The structure of the plug 220 mounting the power supply housing 210 is the same as that in Embodiment 1. However, the structure of the driver circuit board 230 mounted on the plug 220 is different from that in Embodiment 1.

[0050] Specifically, in this embodiment, in order to install the drive circuit board 230, the snap-fit ​​part 221 is an elastic snap hook 221 that extends from the bottom inner side of the plug 220 toward the end of the drive circuit board 230; snap-fit ​​through holes 232 are provided at both ends of the drive circuit board 230, and the elastic snap hook 221 passes through the corresponding snap-fit ​​through holes 232 to snap the drive circuit board 130, thereby installing the drive circuit board 130 onto the plug 120.

[0051] To limit the shaking of the drive circuit board 130, the bottom inner side of the plug 120 extends toward the bottom surface of the drive circuit board 130 to form a plurality of limiting protrusions 222. The limiting protrusions 222 press the drive circuit board 130 against the elastic hook 221, thereby limiting the shaking of the drive circuit board 230.

[0052] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this invention, and these variations still fall within the protection scope of this utility model.

Claims

1. An LED driver power supply that avoids adhesive leakage, characterized in that, include: The power supply housing, plugs, and drive circuit board are provided. The plugs are installed at the openings at both ends of the power supply housing, and the drive circuit board is installed inside the power supply housing between the two plugs. The plug extends toward the drive circuit board to form a snap-fit ​​portion. After the drive circuit board is housed in the power supply housing, the snap-fit ​​portion snaps onto both ends of the drive circuit board. The drive circuit board is then sealed inside the power supply housing between the two plugs by potting adhesive.

2. The LED driver power supply for preventing adhesive leakage as described in claim 1, characterized in that: The snap-fit ​​portion is a snap-fit ​​protrusion formed by the inner sidewall of the plug extending toward the end of the drive circuit board; The top of the snap-fit ​​protrusion is provided with a guide slide protrusion. After the end of the drive circuit board slides along the guide slide protrusion to the bottom surface of the snap-fit ​​protrusion, the snap-fit ​​protrusion presses the drive circuit board against the plug.

3. The LED driver power supply for preventing adhesive leakage as described in claim 1, characterized in that: The snap-fit ​​portion is an elastic hook that extends from the bottom inner side of the plug toward the end of the drive circuit board; The drive circuit board has snap-fit ​​holes at both ends, and the elastic hooks snap into the drive circuit board after passing through the corresponding snap-fit ​​holes.

4. The LED driver power supply for preventing adhesive leakage as described in claim 2 or 3, characterized in that: The bottom inner side of the plug extends toward the bottom surface of the drive circuit board to form multiple limiting protrusions, which press the drive circuit board against the snap-fit ​​part.

5. The LED driver power supply for preventing adhesive leakage as described in claim 1, characterized in that: The inner sides of the two side walls of the power supply housing are provided with snap-fit ​​grooves, and the two sides of the plug are provided with snap-fit ​​protrusions, which snap into the snap-fit ​​grooves.

6. The LED driver power supply for preventing adhesive leakage as described in claim 5, characterized in that: Both ends of the power supply housing are bent upward to form limiting protrusions, and one end of the plug is recessed inward to form a limiting groove. The limiting protrusions engage with the corresponding limiting grooves to prevent the plug from coming out of the power supply housing.

7. The LED driver power supply for preventing adhesive leakage as described in claim 6, characterized in that: The power supply housing has a fixing groove formed at both ends corresponding to the limiting protrusion. The fixing screw passes through the fixing groove and extends into the position to be fixed.

8. The LED driver power supply for preventing adhesive leakage as described in claim 1, characterized in that: The LED driver power supply for preventing adhesive leakage also includes: a housing cover plate; The housing cover plate has fixing hooks on both sides along its length, and the power supply housing has fixing slots on the outer sides along its length, and the fixing hooks engage with the fixing slots.

9. The LED driver power supply for preventing adhesive leakage as described in claim 8, characterized in that: The two ends of the housing cover are bent downward to form limiting protrusions, which abut against the power terminals of the drive circuit board to prevent the housing cover from detaching from the power supply housing.

10. The LED driver power supply for preventing adhesive leakage as described in claim 9, characterized in that: The housing cover plate is also provided with a plurality of heat dissipation holes, which are used for heat dissipation of the drive circuit board; Multiple plating holes are provided on the limiting protrusion, which are used to facilitate the hanging of the housing cover plate during electroplating.

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