Lamp holder and LED (light-emitting diode) lighting device applying same
By designing a lamp head with interconnected side walls, using a physical bonding connection method between conductive pins and wires, and using the convex and concave structure of the end cover and the shell to fix the wires, the high cost, complex process and safety risks of the existing LED lighting device connection methods are solved, and a stable and safe connection effect is achieved.
Patent Information
- Application Number
- CN202421329904.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-12
- Filing Date
- 2024-06-11
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The connection method of existing LED lighting devices is costly, complex in process, and has potential quality and safety risks. For example, high temperature during welding may cause the lamp head to melt, and the wires are prone to scrape the cement to produce foreign matter during bonding.
By designing a lamp head whose shell has an interconnected side wall, including a physically fitted connection method of conductive pins and wires, the wires are fixed with the concave structure of the shell by using the end cap to avoid the risk of breaking and falling off or creating foreign matter.
The stable connection between the conductive pin and the wire is achieved, which simplifies operation, reduces costs, avoids quality and safety risks, and improves the reliability and safety of the connection.
Smart Images
Figure CN222963767U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of LED lighting devices, and specifically relates to a lamp cap and an LED lighting device using the same. Background Art
[0002] LED lighting devices have many advantages such as long service life, small size, energy saving, etc., so they are widely used in the market and gradually replace existing incandescent lamps and fluorescent lamps.
[0003] Currently in the market, most LED lighting devices connect the conductive pins of the lamp cap and the wires by means such as sleeving conductive pins, welding, gluing, and screwing terminal wires, etc., so as to realize the need to transmit external electrical signals into the LED lighting device. However, such connection methods not only have high costs and complex processes, but also have many potential risks. For example, when using the welding method, the high temperature is likely to melt the lamp cap; when using the gluing method, the wire is likely to scrape the clay during the assembly process to generate foreign matters.
[0004] Therefore, a new LED lighting device is needed to solve the above problems. Summary of the Utility Model
[0005] In summary, in view of the deficiencies and defects of the existing LED lighting devices in the prior art, how to design the connection method of the lamp cap part of the LED lighting device to simplify the operation and avoid quality and safety risks is a technical problem that needs to be solved by those skilled in the art urgently.
[0006] This application provides a lamp cap, which is characterized in that it includes: a housing having a first side wall and a second side wall connected to each other, the first side wall being a closed columnar peripheral surface, and the second side wall being vertically disposed at one end of the first side wall to form an accommodating space, wherein the second side wall has a recess, the recess having a first wire outlet hole, a second wire outlet hole, and an end cap fixing hole, the first wire outlet hole and the second wire outlet hole being located at two ends in the length direction of the recess, and the end cap fixing hole being at an intermediate position between the two ends in the length direction of the recess; two conductive pins for connecting external electrical signals and respectively disposed at one end of the first wire outlet hole and the second wire outlet hole away from the end cap fixing hole; and an end cap having a convex portion fitting with the recess, and two ends in the length direction of the end cap being in contact with the conductive pins.
[0007] Preferably, the conductive pins are made of a conductive material, one end of which is connected to the housing, and the other end has a bent portion exposed outside the housing, and the bent portions of the two conductive pins are bent at 90 degrees in opposite directions.
[0008] Preferably, the convex portion of the end cap has a first convex portion and a second convex portion that respectively fit into the first wire outlet hole and the second wire outlet hole, and a third convex portion that fits into the end cap fixing hole.
[0009] Preferably, the end cap further includes a flat portion. The first convex portion, the second convex portion, and the third convex portion are disposed on the same side of the flat portion, and the flat portion is in contact with the conductive pin.
[0010] Preferably, the concave portion further includes a first defining portion and a second defining portion that form the first wire outlet hole, the second wire outlet hole, and the end cap fixing hole. The first defining portion and the second defining portion are in contact with the flat portion of the end cap to define the position where the end cap is fixed on the second side wall.
[0011] Preferably, the third convex portion includes a clamping portion disposed at one end of the third convex portion away from the flat portion. The clamping portion clamps the first defining portion and the second defining portion to fix the end cap to the housing.
[0012] The present application provides an LED lighting device, which is characterized in that it includes a lamp tube, including a lamp tube body and a lamp board. The lamp board is disposed on the inner wall of the lamp tube body, and at least one group of LED units is disposed on the lamp board; a lamp head as described above, wherein the first side wall is disposed at the end of the lamp tube body and is parallel to the lamp tube body, and the second side wall is disposed at one end away from the lamp tube body; a wire in contact with the conductive pin and the end cap, and the wire is fixed by an interference fit with the conductive pin and the end cap through the conductive pin; and a power supply device, at least partially disposed in the accommodating space. The power supply device has an input end and an output end. Wherein, the input end is electrically connected to the conductive pin through the wire, and the output end is coupled to the lamp board. The power supply device is used to convert the obtained external electrical signal into a driving signal to light the LED units.
[0013] Preferably, the end of the wire in contact with the conductive pin is located between the end where the first convex portion and the second convex portion are inserted into the first wire outlet hole and the second wire outlet hole and the bent portion of the conductive pin.
[0014] Preferably, at least two groups of LED units are disposed on the lamp board, and the LED units in each group are connected in parallel with each other.
[0015] Preferably, each group of LED units includes at least two LED lamp beads, and the LED lamp beads are connected in series.
[0016] Compared with the prior art, the LED lighting device provided by the present application can realize the connection between the conductive pins of the lamp head of the LED lighting device and the wire through physical fitting, and risks such as disconnection, falling off or generation of foreign objects are not likely to occur. Description of the Drawings
[0017] Figure 1 is a schematic diagram of the LED lighting device according to an embodiment of the present application;
[0018] Figure 2 is a schematic diagram of the connection of LED units according to an embodiment of the present application;
[0019] Figure 3 is a schematic diagram of the lamp head structure of the LED lighting device according to an embodiment of the present application;
[0020] Figure 4 is a schematic diagram of the lamp head housing structure according to an embodiment of the present application;
[0021] Figure 5 is a schematic diagram of the lamp head end cap of the LED lighting device according to an embodiment of the present application;
[0022] Figure 6 is a cross-sectional view of the plane of the lamp head of the LED lighting device according to an embodiment of the present application;
[0023] Figure 7 is a cross-sectional view of the plane of the lamp head of the LED lighting device according to an embodiment of the present application; and
[0024] Figure 8 is a cross-sectional view of the plane of the lamp head of the LED lighting device according to an embodiment of the present application. Detailed Embodiments
[0025] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described below. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive. The directions such as "first", "second", "third", "axial direction", "above", "below", etc. in the following text are for more clearly indicating the structural position relationship and are not a limitation to the present application. In the present application, the definitions of "vertical", "horizontal", and "parallel" are: including the cases within ±30% based on the standard definitions. For example, vertical usually refers to an angle of 90 degrees relative to the reference line, but in the present application, vertical refers to the cases within 60 degrees to 120 degrees.
[0026] Refer to Figure 1 , Figure 1Schematic diagram of an LED lighting device according to an embodiment of the present application. The LED lighting device 100 includes a lamp head 110, a lamp tube 120, and a power supply device 130. In this embodiment, the lamp tube 120 includes a lamp tube main body 122 and a lamp board 121. The lamp tube main body 122 is made of glass. In other embodiments, the lamp tube main body 122 can also be entirely made of plastic material, or part of it is made of plastic material and the other part is made of aluminum material. The lamp board 121 can be a rigid circuit board (such as FR4 or aluminum substrate), or a flexible circuit board. It is disposed inside the lamp tube main body 122. In one embodiment, the lamp board 121 is closely attached to the inner wall of the lamp tube main body 122. As Figure 1 shown, the lamp head 110 is disposed at at least one of the two ends of the lamp tube 120.
[0027] At least one group of LED units is disposed on the lamp board 121. The LED unit includes at least one LED lamp bead or two or more LED lamp beads connected in series. In one embodiment, the lamp board 121 is provided with at least two groups of parallel-connected LED units 1211 and 1212.
[0028] Please refer to Figure 2 , which shows a schematic diagram of the lamp board structure in an embodiment of the present application. As shown in the figure, the positive end of the lamp board 121 is used to receive the output signal of the power supply device 130. The lamp board 121 includes at least two groups of LED units 1211 and 1212, and each LED unit is connected in parallel with each other. Figure 2 Only the first group of LED units 1211 and the second group of LED units 1212 are schematically shown in , and the remaining more groups of LED units are schematically omitted by dotted lines. Each group of LED units includes at least one LED lamp bead. When there are multiple LED lamp beads, the LED lamp beads are connected in series into a string. Taking the first group of LED units 1211 as an example, it includes at least one LED lamp bead. When there are two or more LED lamp beads, the positive end (i.e., anode, or positive electrode) of the first LED lamp bead is coupled to the positive end of the lamp board 121, the negative end (i.e., cathode, or negative electrode) of the first LED lamp bead is coupled to the positive end of the next (second) LED lamp bead, the positive end of the second LED lamp bead is coupled to the negative end of the previous (first) LED lamp bead, and the negative end of the second LED lamp bead is coupled to the positive end of the next (third) LED lamp bead. The negative end of the last LED lamp bead serves as the negative end of the first group of LED units 1211, that is, the negative end of the lamp board 121.
[0029] It should be noted that Figure 2 the connection method of the positive and negative ends of each group of LED units and the LED lamp beads included on the shown lamp board 121 is only an example, and it is not a limitation on its connection method. Those skilled in the art can make adaptive adjustments according to the actual circuit connection method under the inspiration of the present application.
[0030] Refer again to Figure 1 , the power supply device 130 has an input end and an output end. The input end is electrically connected to the lamp cap 110, and the output end is coupled to the lamp board 121 to convert an external electrical signal into an internal driving signal, and the internal driving signal is transmitted to the LED unit through a wire. In this embodiment, the power supply device 130 is integrally integrated on a single circuit board and disposed inside one end of the lamp tube 120. In some embodiments, the power supply device 130 can also be in a modular form or integrally integrated on a single circuit board and disposed inside a lamp cap at one end of the lamp tube 120; or it can be two separate components divided into two circuit boards and respectively disposed inside the lamp caps at both ends; furthermore, the power supply device 130 is located in the overlapping area between the lamp tube main body 122 and the lamp cap 110.
[0031] It should be noted that Figure 1 only an example of the position of the power supply device is provided, and it is not a limitation on the position of the power supply device. In some embodiments, there can also be multiple combinations of the above positions for its position. For example, a part of the power supply device can be located inside the lamp tube 120, a part can be located inside the lamp cap at the corresponding end of the lamp tube 120, and its middle part can be located in the overlapping area between the lamp tube main body and the lamp cap.
[0032] Refer to Figure 3 , Figure 3 which is a schematic structural diagram of the lamp cap of the LED lighting device according to an embodiment of the present application. The lamp cap 110 includes a housing 111, conductive pins 112, and a wire 113. Among them, a part of the parallel part of the housing 111 and the lamp tube main body 122 is sleeved on the end of the lamp tube 120. In other words, the housing 111 is in contact with the outer surface of the lamp tube main body 122 (relative to the inner surface where the lamp board 121 is located), and there is an overlapping area.
[0033] Refer to Figure 4 , Figure 4Schematic diagram of the lamp holder housing structure according to an embodiment of the present application. The housing 111 has a first side wall 1111 parallel to the lamp tube body 122. The first side wall 1111 is a closed columnar peripheral surface and is provided at one end of the lamp tube body 122. The first side wall 1111 and the lamp tube body 122 overlap to form an overlapping area. The housing 111 further includes a second side wall 1112 which is vertically provided at one end of the first side wall 1111 away from the lamp tube body to form an accommodating space with the overlapping area. In some embodiments, the power supply device 130 is at least partially disposed in the accommodating space. The second side wall 1112 is parallel to the radial direction of the lamp tube body 122 and has a side plane and a recess 11120. The recess 11120 is strip-shaped and protrudes towards the inside of the lamp holder 110 (i.e., the direction in which the lamp holder contacts the lamp tube), that is, the recess 11120 and the side plane are not in the same plane. The recess 11120 has a first wire outlet hole 11121, a second wire outlet hole 11122, an end cap fixing hole 11123, and a first limiting portion 11124 and a second limiting portion 11125 that structurally form the above three holes. The first wire outlet hole 11121 and the second wire outlet hole 11122 are located at both ends in the length direction of the recess 11120, and the end cap fixing hole 11123 is located at the middle position between the opposite ends. The degrees (heights) of the first limiting portion 11124 and the second limiting portion 11125 protruding towards the power supply device 130 may be the same or different. In this embodiment, the first limiting portion 11124 and the second limiting portion 11125 of the recess 11120 protrude towards the power supply device 130 with the same height.
[0034] The lamp holder 110 has at least one conductive pin 112 made of a conductive material. In this embodiment, the lamp holder 110 has two conductive pins 112. The conductive pin 112 has two ends, one of which is disposed at one end in the length direction of the recess 11120 of the second side wall 1112, that is, this end is disposed at the end of the first wire outlet hole 11121 and the second wire outlet hole 11122 away from the end cap fixing hole 11123. The other end (the bent portion 1121) has a bend angle of at least 90 degrees, and the bending directions of the bent portions 1121 of the two conductive pins 112 are opposite, that is, the bending direction of the bent portion 1121 extends in the direction away from the recess 11120, that is, the bending direction of the bent portion 1121 is away from the other conductive pin. The conductive pin 112 with a bent end is made of a metal material. When in use, the lamp holder 110 is connected to the lamp socket. The conductive pin 112 is inserted into the lamp socket and rotated 90 degrees, which not only electrically connects to the external AC signal and plays a role in signal transmission, but also strengthens the connection stability between the lamp holder 110 and the lamp socket and enhances the safety of user use.
[0035] The lamp cap 110 includes at least one wire 113 for transmitting the external alternating current signal of the conductive pin 112 to the power supply device 130. The wire 113 has two ends, one end is in contact with the conductive pin 112, and the other end is coupled to the power supply device 130. In this embodiment, the lamp cap includes two wires 113, and the two wires 113 respectively penetrate from the first wire outlet hole 11121 and the second wire outlet hole 11122, are closely attached to the conductive pins 112 on both sides, and are located on one side where the two conductive pins 112 are close to each other.
[0036] Reference Figure 5 , Figure 5 is a schematic diagram of the end cap of the lamp head of the LED lighting device according to an embodiment of the present application. The lamp cap 110 further includes an end cap 114, and the end cap 114 fits into the recess 11120 of the second side wall 1112. The two ends of the end cap in the length direction are fixed to the conductive pin and the wire by an interference fit. The end cap 114 has a first convex portion 1141, a second convex portion 1142, a third convex portion 1143 and a flat portion 1144. The first convex portion 1141, the second convex portion 1142 and the third convex portion 1143 are located on the same side of the flat portion 1144, and the first convex portion 1141 and the second convex portion 1142 are located at the two ends of the flat portion 1144 in the length direction, and the third convex portion 1143 is located at the middle position of the flat portion 1144 relative to the two ends. Among them, the first convex portion 1141 and the second convex portion 1142 cooperate with the first wire outlet hole 11121 and the second wire outlet hole 11122, and the third convex portion 1143 cooperates with the end cap fixing hole 11123, that is, the first convex portion 1141, the second convex portion 1142 and the third convex portion 1143 respectively have two ends, one end of which is connected to the flat portion 1144, and the other end away from the flat portion 1144 is respectively inserted into the wire outlet holes 11121, 11122 and the end cap fixing hole 11123 of the recess 11120. In this embodiment, the first convex portion 1141 cooperates with the first wire outlet hole 11121, the second convex portion 1142 cooperates with the second wire outlet hole 11122, or the first convex portion 1141 and the second wire outlet hole 11122 cooperate, the second convex portion 1142 cooperates with the first wire outlet hole 11121, and the flat portion 1144 is in contact with the first limiting portion 11124 and the second limiting portion 11125 to limit the position of the end cap 114 fixed on the second side wall.
[0037] Refer to Figure 6 , Figure 6 is a plan sectional view of the lamp head of the LED lighting device according to an embodiment of the present application. Figure 6It is a sectional view after the lamp cap 110 and the end cap 114 are fitted. The third convex part 1143 includes at least one clamping part 11431 for fixing the end cap 114 to the concave part 11120 to prevent it from falling off due to external factors such as vibration. In this embodiment, the third convex part 1143 has two clamping parts 11431, which are respectively located on both sides of the end of the third convex part 1143 away from the flat part 1144. When the end cap 114 is installed on the outer shell, the clamping part 11431 is clamped on the first limiting part 11124 and the second limiting part 11125.
[0038] Refer to Figure 7 , Figure 7 It is a plan sectional view of the lamp cap of the LED lighting device according to an embodiment of the present application. When the end cap 114 is installed on the lamp cap 110, the end cap 114 is embedded in the concave part 11120, and the flat part 1144 is in contact with the conductive pin 112 and the wire 113. The end of the wire 113 in contact with the conductive pin 112 does not protrude from the bent part 1121 of the conductive pin 112 and is not lower than the ends of the first convex part 1141 and the second convex part 1142 away from the flat part 1144. That is to say, the end of the wire 113 in contact with the conductive pin 112 is located between the ends of the first convex part 1141 and the second convex part 1142 inserted into the concave part 11120 and the bent part 1121 of the conductive pin 112. Refer to Figure 7 , the end of the wire 113 in contact with the conductive pin 112 is within the range of two lines a and b, where a is the straight line where the ends of the first convex part 1141 and the second convex part 1142 inserted into the first wire outlet hole 11121 and the second wire outlet hole 11122 are located, and b is the straight line where the bent part 1121 of the conductive pin 112 is located. In some embodiments, the heights of the first convex part 1141, the second convex part 1142, and the third convex part 1143 (the height along the length direction of the lamp tube main body 122 is the so-called height) are not the same. The heights of the first convex part 1141 and the second convex part 1142 are at least 50% of the height of the corresponding hole positions of the concave part 11120 on the second side wall 1112, and the height of the third convex part 1143 is not less than the height of the end cap fixing hole 11123. In this embodiment, as Figure 7 shown, the heights of the first convex part 1121, the second convex part 1142, and the third convex part 1143 are the same and are not less than the heights of their corresponding hole positions.
[0039] Refer to Figure 6 - 8 , all are plan sectional views of the lamp cap of the LED lighting device according to an embodiment of the present application. The present application proposes an LED lighting device to solve the problem of the connection between the conductive pin and the wire. By the suitable cooperation between the concave part on the second side wall of the lamp cap and the end cap, the wire and the conductive pin are forced to be in close contact physically, so as to effectively and safely realize the transmission of electrical signals between the conductive pin and the wire.
[0040] It should be specifically noted that the above features of the present application can be arbitrarily combined and used for the improvement of LED lighting devices. The above embodiments are only illustrative of the principles and effects of the present application, rather than limiting the present application. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present application should still be covered by the claims of the present application.
Claims
1. A lamp holder, characterized in that: include: A housing having a first side wall and a second side wall connected to each other, wherein the first side wall is a closed cylindrical peripheral surface, and the second side wall is vertically arranged at one end of the first side wall to form an accommodating space, wherein the second side wall has a recess, and the recess has a first wire outlet hole, a second wire outlet hole and an end cover fixing hole, the first wire outlet hole and the second wire outlet hole are located at two ends of the recess in the length direction, and the end cover fixing hole is located in the middle of the two ends of the recess in the length direction; Two conductive pins, used for connecting external electrical signals, and respectively disposed at one end of the first wire outlet hole and the second wire outlet hole away from the end cover fixing hole; and An end cap has a convex portion that fits with the concave portion, and both ends of the end cap in the length direction are in contact with the conductive needle.
2. The lamp cap according to claim 1, characterized in that The conductive needle is made of a conductive material, one end of which is connected to the housing, and the other end of which has a bending portion exposed from the housing. The bending portions of the two conductive needles are bent 90 degrees in opposite directions.
3. The lamp cap according to claim 2, characterized in that: The convex portion of the end cover has a first convex portion and a second convex portion respectively matched with the first wire outlet hole and the second wire outlet hole, and a third convex portion matched with the end cover fixing hole.
4. The lamp cap according to claim 3, characterized in that The end cap further includes a flat portion, the first convex portion, the second convex portion and the third convex portion are arranged on the same side of the flat portion, and the flat portion contacts the conductive needle.
5. The lamp cap according to claim 4, characterized in that: The recess further includes a first defining portion and a second defining portion to form the first wire outlet hole, the second wire outlet hole and the end cover fixing hole, and the first defining portion and the second defining portion are in contact with the flat portion of the end cover to define the position where the end cover is fixed on the second side wall.
6. The lamp cap according to claim 5, characterized in that The third protrusion includes a locking portion, which is arranged at one end of the third protrusion away from the flat portion, and the locking portion is engaged with the first limiting portion and the second limiting portion to fix the end cover on the housing.
7. An LED lighting device, characterized in that: include: A lamp tube, comprising a lamp tube body and a lamp board, wherein the lamp board is arranged on the inner wall of the lamp tube body, and at least one group of LED units is arranged on the lamp board; The lamp holder according to any one of claims 3 to 6, wherein the first side wall is arranged at the end of the lamp tube body and is parallel to the lamp tube body, and the second side wall is arranged at an end away from the lamp tube body; A wire is in contact with the conductive needle and the end cap, and the conductive needle and the end cap are used to fix the wire through interference fit; and A power supply device is at least partially disposed in the accommodating space, and the power supply device has an input end and an output end, wherein the input end is electrically connected to the conductive pin through the wire, and the output end is coupled to the lamp board, and the power supply device is used to convert the acquired external electrical signal into a driving signal to light up the LED unit.
8. The LED lighting device according to claim 7, characterized in that: The end of the wire in contact with the conductive needle is located between one end of the first protrusion and the second protrusion inserted into the first wire outlet hole and the second wire outlet hole and the bent portion of the conductive needle.
9. The LED lighting device according to claim 7, characterized in that: At least two groups of LED units are arranged on the light board, and the LED units in each group are connected in parallel.
10. The LED lighting device according to claim 9, characterized in that: Each group of the LED units includes at least two LED lamp beads, and the LED lamp beads are connected in series.