Light string power supply

Abstract

The utility model provides a light string power supply which comprises a shell, an end cover and a circuit board. The end cover is fixed at the opening end of the shell, the circuit board is installed in the shell, and a button used for triggering a key located on the circuit board is embedded in the end cover; the light string power supply further comprises an ejector rod, a first annular boss is arranged on a shell of the button, the trigger end of the button is located on the inner side of the first annular boss, one end of the ejector rod is connected with the inner end of the button, and the other end of the ejector rod is inserted into the first annular boss and abuts against the trigger end. When the button is pressed, the push rod is used for pushing the trigger end to trigger the key; according to the utility model, tin materials can be prevented from entering the button, and the button can reliably trigger the trigger end of the button, so that the condition that the button fails can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of light string power supply devices, and in particular to a light string power supply. Background Art

[0002] A light string power supply is a device used to supply power to the light string and to control the lighting of the light string and the lighting mode of the light string. The light string power supplies currently on the market include a shell, an end cover and a circuit board; the end cover is fixed to the open end of the shell, the circuit board is installed inside the shell, and a button for triggering a button located on the circuit board is embedded on the end cover; when the button is pressed, the button can trigger the button, and at this time, the light string power supply can control the lighting of the light string and the lighting mode of the light string; however, in the light string power supplies currently on the market, the button installed on the circuit board is a button with a built-in ejector rod or a patch-type button, so that when the button and the circuit board are tinned and welded in a tin furnace, the tin material is easy to enter the button from the trigger end of the button, which will cause the button to malfunction; or when the end cover and the shell are assembled, the trigger end of the button is easy to be misaligned with the button, which will also cause the button to malfunction. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a light string power supply, which can prevent tin from entering into a key and enable the button to reliably trigger the trigger end of the key, thereby effectively preventing the key from malfunctioning.

[0004] The utility model provides a light string power supply, comprising a shell, an end cover and a circuit board; the end cover is fixed to the open end of the shell, the circuit board is installed inside the shell, and a button for triggering a button located on the circuit board is embedded on the end cover; the light string power supply also includes a push rod, a first annular boss is provided on the shell of the button, the trigger end of the button is located on the inner side of the first annular boss, one end of the push rod is connected to the inner end of the button, and the other end of the push rod is inserted into the first annular boss and abuts against the trigger end; when the button is pressed, the push rod is used to push the trigger end so that the button is triggered.

[0005] After the utility model adopts the above structure, when the key and the circuit board are tinned and welded in a tin furnace, the first annular boss can reliably block the tin material from entering the key, thereby effectively avoiding the malfunction of the key, and because the other end of the push rod is inserted into the first annular boss and abuts against the trigger end of the key, that is, the push rod and the key can be limited, so when the button is pressed, the push rod can reliably trigger the trigger end of the key, thereby effectively avoiding the malfunction of the key.

[0006] In a possible implementation, a second annular boss is provided on the inner end of the button, and one end of the push rod is inserted into the second annular boss; by adopting this structure, one end of the push rod can be conveniently inserted into the inner end of the button.

[0007] In a possible embodiment, the outer wall of one end of the push rod is in contact with the inner wall of the second annular boss; by adopting this structure, the reliability of the connection between one end of the push rod and the button can be improved, that is, after one end of the push rod is connected to the button and when the end cover and the shell are assembled, the push rod can be prevented from freely detaching from the button.

[0008] In a possible embodiment, annular chamfered surfaces are provided on the outer side walls at both ends of the push rod. The annular chamfered surface on the outer side wall at one end of the push rod is used to cooperate and guide with the inner side wall of the second annular boss to facilitate the insertion of one end of the push rod into the second annular boss, and the annular chamfered surface on the outer side wall at the other end of the push rod is used to cooperate and guide with the inner side wall of the first annular boss to facilitate the insertion of the other end of the push rod into the first annular boss. After adopting the structure, when one end of the push rod is connected to the button, the annular chamfered surface on the outer side wall at one end of the push rod can cooperate and guide with the inner side wall of the second annular boss to facilitate the insertion of one end of the push rod into the second annular boss, that is, it can This facilitates the insertion of one end of the push rod into the button. When the other end of the push rod is connected to the button, the annular chamfered surface on the outer side wall of the other end of the push rod can cooperate with the inner side wall of the first annular boss to guide the other end of the push rod to be inserted into the first annular boss, thereby facilitating the insertion of the other end of the push rod into the button. In addition, since annular chamfered surfaces are provided on the outer side walls at both ends of the push rod, the two ends of the push rod can be interchanged, thereby improving the flexibility of the connection between the push rod and the button, that is, when the push rod is assembled with the button, there is no need to distinguish between the two ends of the push rod, thereby facilitating the assembly of the push rod with the button.

[0009] In a possible embodiment, a protrusion is provided in the middle of both ends of the push rod, and an embedding groove is provided on the inner end part of the button, the protrusion located at one end of the push rod is embedded in the embedding groove, and the protrusion located at the other end of the push rod is abutted against the trigger end; after adopting this structure, since the protrusion located at one end of the push rod can be embedded in the embedding groove, one end of the push rod can be more reliably positioned together with the button, and since the protrusion located at the other end of the push rod abuts against the trigger end, when the button is pressed, the push rod can more reliably push the trigger end to trigger the button; in addition, a protrusion is provided in the middle of both ends of the push rod, so that the two ends of the push rod can be interchangeable, that is, the flexibility of the connection between the push rod and the button and key can be improved, that is, when the push rod is assembled with the button and key, there is no need to distinguish the two ends of the push rod, which can facilitate the assembly of the push rod with the button and key.

[0010] In a possible embodiment, the outer peripheral wall of the button is bonded and fixed to the end cover and circumferentially sealed; by adopting this structure, the button can be reliably fixed to the end cover and circumferentially sealed, and has the advantage of convenient fixation of the button and the end cover. In addition, since the button and the end cover are circumferentially sealed, rainwater can be prevented from entering the power supply of the light string through the gap between the button and the end cover, thereby achieving the purpose of waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0013] Figure 3 for Figure 2 Schematic diagram of the structure after enlarging point A in the middle. DETAILED DESCRIPTION

[0014] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0015] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0016] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0017] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] See also Figure 1-3As shown, the embodiment of the present application discloses a light string power supply, including a shell 1, an end cover 2 and a circuit board 3; the end cover 2 is fixed to the open end of the shell 1, the circuit board 3 is installed inside the shell 1, and a button 5 for triggering a button 4 located on the circuit board 3 is embedded on the end cover 2; the light string power supply also includes a push rod 6, a first annular boss 42 is provided on the shell 41 of the button 4, and the trigger end 43 of the button 4 is located on the inner side of the first annular boss 42, one end of the push rod 6 is connected to the inner end of the button 5, and the other end of the push rod 6 is inserted into the first annular boss 42 and abuts against the trigger end 43; when the button 5 is pressed, the push rod 6 is used to push the trigger end 43 to trigger the button 4; the above-mentioned button is made of silicone material.

[0019] A second annular boss 51 is provided on the inner end of the button 5, and one end of the push rod 6 is inserted into the second annular boss 51; by adopting this structure, one end of the push rod can be conveniently inserted into the inner end of the button.

[0020] The outer wall of one end of the push rod 6 is in contact with the inner wall of the second annular boss 51; by adopting this structure, the reliability of the connection between one end of the push rod and the button can be improved, that is, after one end of the push rod is connected to the button and when the end cover and the shell are assembled, the push rod can be prevented from freely detaching from the button.

[0021] An annular chamfered surface 61 is provided on the outer side walls at both ends of the push rod 6. The annular chamfered surface 61 located on the outer side wall at one end of the push rod 6 is used to cooperate and guide with the inner side wall of the second annular boss 51 so as to facilitate the insertion of one end of the push rod 6 into the second annular boss 51. The annular chamfered surface 61 located on the outer side wall at the other end of the push rod 6 is used to cooperate and guide with the inner side wall of the first annular boss 42 so as to facilitate the insertion of the other end of the push rod 6 into the first annular boss 42. After adopting the structure, when one end of the push rod is connected to the button, the annular chamfered surface on the outer side wall at one end of the push rod can cooperate and guide with the inner side wall of the second annular boss so as to facilitate the insertion of one end of the push rod into the second annular boss , that is, it can facilitate the insertion of one end of the push rod into the button. When the other end of the push rod is connected to the button, the annular chamfered surface on the outer side wall of the other end of the push rod can cooperate with the inner side wall of the first annular boss to guide so that the other end of the push rod can be inserted into the first annular boss, that is, it can facilitate the insertion of the other end of the push rod into the button. In addition, since annular chamfered surfaces are provided on the outer side walls at both ends of the push rod, the two ends of the push rod can be interchangeable, that is, the flexibility of the connection between the push rod and the button can be improved, that is, when the push rod is assembled with the button, there is no need to distinguish the two ends of the push rod, which can facilitate the assembly of the push rod with the button.

[0022] The middle parts of both ends of the push rod 6 are provided with protrusions 62, and the inner end part of the button 5 is provided with an embedding groove 52. The protrusion 62 located at one end of the push rod 6 is embedded in the embedding groove 52, and the protrusion 62 located at the other end of the push rod 6 is abutted against the trigger end 43; after adopting this structure, since the protrusion located at one end of the push rod can be embedded in the embedding groove, one end of the push rod can be more reliably positioned together with the button, and since the protrusion located at the other end of the push rod abuts against the trigger end, when the button is pressed, the push rod can more reliably push the trigger end to trigger the button; in addition, the middle parts of both ends of the push rod are provided with protrusions, so that the two ends of the push rod can be interchanged, that is, the flexibility of connecting the push rod with the button and key can be improved, that is, when the push rod is assembled with the button and key, there is no need to distinguish the two ends of the push rod, which can bring convenience to the assembly of the push rod with the button and key.

[0023] The outer peripheral wall of the button 5 is bonded and fixed to the end cover 2 and circumferentially sealed; by adopting this structure, the button can be reliably fixed to the end cover and circumferentially sealed, and has the advantage of convenient fixing of the button and the end cover. In addition, since the button and the end cover are circumferentially sealed, rainwater can be prevented from entering the power supply of the light string through the gap between the button and the end cover, so as to achieve the purpose of waterproofing.

[0024] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A light string power supply, comprising a housing (1), an end cover (2) and a circuit board (3); the end cover (2) is fixed to an open end of the housing (1), the circuit board (3) is installed inside the housing (1), and a button (5) for triggering a button (4) located on the circuit board (3) is embedded on the end cover (2); the characteristics are: The light string power supply also includes a push rod (6); a first annular boss (42) is provided on the housing (41) of the button (4); a trigger end (43) of the button (4) is located on the inner side of the first annular boss (42); one end of the push rod (6) is connected to the inner end of the button (5); the other end of the push rod (6) is inserted into the first annular boss (42) and abuts against the trigger end (43); when the button (5) is pressed, the push rod (6) is used to push the trigger end (43) so that the button (4) is triggered.

2. The light string power supply according to claim 1, characterized in that: A second annular boss (51) is provided on the inner end of the button (5), and one end of the push rod (6) is inserted into the second annular boss (51).

3. The light string power supply according to claim 2, characterized in that: The outer side wall of one end of the push rod (6) is in contact with the inner side wall of the second annular boss (51).

4. The light string power supply according to claim 2 or 3, characterized in that: Annular chamfered surfaces (61) are provided on the outer side walls at both ends of the push rod (6); the annular chamfered surface (61) located on the outer side wall at one end of the push rod (6) is used to cooperate with the inner side wall of the second annular boss (51) to guide so that one end of the push rod (6) can be inserted into the second annular boss (51); the annular chamfered surface (61) located on the outer side wall at the other end of the push rod (6) is used to cooperate with the inner side wall of the first annular boss (42) to guide so that the other end of the push rod (6) can be inserted into the first annular boss (42).

5. The light string power supply according to claim 4, characterized in that: A protrusion (62) is provided in the middle of both ends of the push rod (6), and an embedding groove (52) is provided on the inner end of the button (5). The protrusion (62) at one end of the push rod (6) is embedded in the embedding groove (52), and the protrusion (62) at the other end of the push rod (6) is in contact with the trigger end (43).

6. The light string power supply according to claim 1 or 2 or 3 or 5, characterized in that: The outer peripheral wall of the button (5) is bonded and fixed to the end cover (2) and is circumferentially sealed.

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