A single-row lamp bead lamp panel installation connection structure and illumination lamp

Abstract

The present invention discloses a mounting and connecting structure of a single-row lamp bead lamp board and a lighting fixture thereof, belonging to the technical field of lamps. The mounting and connecting structure of the single-row lamp bead lamp board comprises a lamp holder, a lamp trough is provided on the lamp holder, a plurality of lamp boards are installed in the lamp trough, the lamp boards and the lamp trough are insulated and fixed by fixing screws, a guide piece is provided between the plurality of lamp boards, the lamp boards are electrically connected to the bottom surface of the guide piece through the guide piece, a guide post connecting hole is provided on the protruding part of the guide piece, a fixing screw is provided in the guide post connecting hole, a guide post is connected with the fixing screw, the guide post is a good conductor of electricity, the guide post is electrically connected to the bottom surface of the guide piece, the guide post passes through the lamp holder from the bottom of the lamp trough and forms an electrical connection with the PCBA power supply mainboard. The present invention has a small installation space for the lamp board, a compact structure, convenient installation and maintenance, and a small connection resistance, which is convenient for designing, installing and using equipment in various occasions, and is particularly suitable for use under high current conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of lamps, and in particular to an installation and connection structure of a single-row lamp bead lamp board and an illumination lamp thereof. Background Art

[0002] There is less installation space on both sides of the lamps and lanterns of single-row lamp bead lamp boards. In order to realize the installation of single-row lamp bead lamp boards, in the existing technology, the single-row lamp bead lamp boards are stabilized on the surface of the lamp holder by gluing, and pre-installed terminals are installed on both sides of the lamp holder for connecting the wires to the PCBA power supply motherboard, thereby realizing the electrical connection between the single-row lamp bead lamp board and the PCBA power supply motherboard. However, the pre-installed terminals usually take up a large space, which is not easy to achieve when the lamps and lanterns of the single-row lamp bead lamp board require less installation space. In addition, when the single-row lamp bead lamp board is damaged and repaired, it is not easy to remove the single-row lamp bead lamp board from the lamp holder by gluing. Because the single-row lamp bead lamp board is slender, force is applied from one end, and the single-row lamp bead lamp board is also prone to breakage, which increases the difficulty of removing the single-row lamp bead lamp board and is inconvenient for maintenance.

[0003] Therefore, in order to solve the problem of large space occupied by pre-installed terminals in the existing technology, one of the improvements is to weld lead-out terminals on the single-row lamp bead lamp board, and replace the pre-installed terminals with the lead-out terminals. In this way, the lead-out terminals are small in size, which meets the problem of small installation space of the single-row lamp bead lamp board. However, the welded lead-out terminals have a large resistance compared to the pre-installed terminals, and are prone to generate heat during use, making the lead-out terminals prone to burning, causing the lead-out terminals to loosen at the soldering points, resulting in poor contact or even burning. Especially when used under high current conditions (usually 1A-6A), the lead-out terminals are particularly prone to burning problems, causing short circuit or open circuit of the lamp board of the illuminating lamp.

[0004] Therefore, the existing single-row lamp bead lamp board illumination lamps have the problems of inconvenient lamp board maintenance and unsmooth connection between the lamp board and the PCBA power main board. Summary of the invention

[0005] The present invention needs to design an installation and connection structure of a single-row lamp bead lamp board and an illumination lamp thereof, the purpose of which is to solve the problems of inconvenient installation and maintenance of the lamp board and the unsmooth connection between the lamp board and the PCBA power mainboard.

[0006] In view of this, the technical solution provided by the present invention is: an installation and connection structure of a single-row lamp bead lamp board, comprising an elongated lamp holder, a PCBA power supply mainboard is arranged at the bottom of the lamp holder, a sunken lamp trough is provided on the upper surface of the lamp holder along the elongated direction, a plurality of lamp boards arranged side by side end to end are installed in the lamp trough, the lamp board comprises a circuit substrate, a single-row lamp bead is arranged on the circuit substrate, second fixing holes are arranged on both sides of the lamp bead, a plurality of first fixing holes corresponding to the second fixing holes are provided on the bottom surface of the lamp trough, the circuit substrate is fixed by fixing screws located between the first fixing holes and the second fixing holes, so that the lamp board is screwed to the surface of the lamp trough, a plurality of lamp boards are connected on the upper surfaces, the guide pieces are good electrical conductors, the guide pieces are thin sheets with a protrusion, and one or two fixing holes for connecting the fixing holes are provided on the guide pieces. A third fixing hole of the circuit substrate is fixed, and the guide plate and the lamp board are fixed to the surface of the lamp trough by fixing screws through the third fixing hole, and the lamp board and the bottom surface of the guide plate are electrically connected, the circuit substrate and the fixing screws are insulated, the protrusion protrudes in the side wall direction of the lamp trough, a guide post connecting hole is opened on the protrusion, a fixing screw is also arranged in the guide post connecting hole, the fixing screw in the guide post connecting hole is connected to a guide post, the guide post is a good conductor of electricity, the guide post is electrically connected to the bottom surface of the guide plate, the guide post passes through the lamp holder from the bottom of the lamp trough and forms an electrical connection with the PCBA power mainboard, the PCBA power mainboard is locked and fixed to the bottom of the guide post by fixing screws, and after a plurality of the guide posts are connected to the PCBA power mainboard, the plurality of the guide posts form a stable support for the PCBA power mainboard.

[0007] Furthermore, a plurality of side slots corresponding to the protruding parts are provided on the side walls of the lamp trough, and a guide post hole penetrating the upper and lower sides of the lamp holder is provided at the bottom of the side slot, and a gap greater than 2 mm is provided between the inner wall of the guide post hole and the outer wall of the guide post. Through the side slots, after installation, the protruding part of the guide piece is formed to give way through the side slots, and the guide post fixedly connected by the fixing screws penetrates the guide post hole and is connected to the PCBA power supply mainboard. In the process of the guide post penetrating the guide post hole, the gap greater than 2 mm between the outer wall of the guide post and the inner wall of the guide post hole can well provide a good insulation effect between the guide post and the lamp holder.

[0008] Furthermore, the guide post is a tube body with a thickness greater than 2 mm, and an insulating paint is sprayed on the outer surface of the tube body. The guide post conducts electricity through the cross section of the tube body, and the guide post is used to realize the line connection between the guide piece and the PCBA power supply mainboard, which can greatly reduce the contact resistance and avoid the heating of the guide post. At the same time, since the guide post is set in the shape of a tube body, after installation, the guide post will not shake after being fixed by the fixing screws. When the irradiation lamp is moved and installed in the use of the equipment, the guide post will not contact the guide post hole of the lamp holder due to shaking, and the safety performance is good. Moreover, after the insulating paint is sprayed on the outer surface of the guide post, the insulation effect of the guide post on the lamp holder can be further improved, providing electricity safety.

[0009] Furthermore, the fixing screw connected to the surface of the lamp trough is provided with a rubber insulating sleeve on its outside, and the rubber insulating sleeve includes a gasket and a sleeve. When the fixing screw is connected between the first fixing hole and the second fixing hole, the rubber insulating sleeve is sleeved on the inner wall of the second fixing hole of the circuit substrate through the sleeve, and the gasket is cushioned on the surface of the circuit substrate. When the fixing screw is connected between the first fixing hole, the second fixing hole, and the third fixing hole, the rubber insulating sleeve is sleeved on the inner wall of the third fixing hole and the second fixing hole through the sleeve, and the gasket is cushioned on the surface of the guide. Since the rubber insulating sleeve is elastic, when the gasket is cushioned on the surface of the guide or the surface of the circuit substrate, the fixing screw has a certain elastic buffer when the screw is fixed, so that the fixing of the fixing screw to the guide or the circuit substrate is more stable and can achieve the purpose of insulation, avoiding leakage between the circuit substrate or the guide and the lamp holder, and improving the safety performance of the irradiation lamp.

[0010] Furthermore, the bottom surface of the guide piece is printed with a layer of 6-10 μm conductive silver paste. When the guide piece is fixed on the surface of the circuit substrate by fixing screws, the conductive silver paste is bonded with the circuit on the circuit substrate to realize the electrical connection between the guide piece and the circuit substrate. The conductive silver paste is in contact with the conductive cross section of the guide post to realize the electrical connection between the guide piece and the guide post. The conductive silver paste can not only increase the contact area between the bottom surface of the guide piece and the cross section of the circuit substrate and the guide post, but also reduce the resistance of the conduction, thereby ensuring that heat is avoided under high current working conditions. At the same time, since the conductive silver paste contains 50%-70% silver particles, silver has good oxygen stability and is not easy to oxidize, ensuring that the conductive silver paste has good stable quality during long-term use.

[0011] Furthermore, there is a gap of 1-2 mm between the conductive silver paste and the opening edge of the third fixing hole on the bottom surface of the guide sheet.

[0012] The present invention also provides an illumination lamp, including a lamp board structure, wherein the lamp board structure is the installation and connection structure of the aforementioned single-row lamp bead lamp board, wherein a pair of upper cover plates are arranged on the upper surface of the lamp holder of the lamp board structure, a gap is left between the pair of upper cover plates for illumination by the lamp beads, a first side cover and a second side cover are arranged on both sides of the pair of upper cover plates, a front side cover and a rear side cover are arranged on both sides of the lamp holder, and two cooling water interfaces corresponding to the cooling water holes of the lamp holder are arranged on the rear side cover, and the cooling of the cooling water inside the lamp holder is achieved by means of the two cooling water interfaces.

[0013] The present invention arranges the lamp boards into modular shapes by means of a plurality of lamp boards arranged side by side, and insulates and fixes them in the lamp grooves of the lamp holders by means of fixing screws, and at the same time utilizes guide plates to realize electrical connection between the lamp boards and between the lamp boards and the PCBA power supply mainboard, so as to facilitate installation. At the same time, it is also convenient to replace defective lamp boards in a targeted manner during maintenance. Therefore, the present invention is easy to install and replace, and solves the problems of installation and maintenance caused by gluing of single-row lamp boards in the prior art. The lamp boards have a small installation space and a compact structure, so as to facilitate the design and installation of the lighting fixtures for use in various occasions.

[0014] The present invention can well achieve the problem of electrical insulation in the process of connecting and fixing the lamp board to the lamp holder through the rubber insulating sleeve, thereby avoiding the problem of leakage between the lamp holder and the circuit substrate. At the same time, the rubber insulating sleeve utilizes the elasticity of the rubber to ensure a certain elastic buffer when the lamp board is fixed to the lamp holder, thereby avoiding damage to the lamp board when the fixing screws are used to lock the lamp board.

[0015] The present invention greatly reduces the connection resistance between the guide plate and the lamp board by providing a guide plate and providing a layer of conductive silver paste on the guide plate for facilitating conduction, and the conduction is stable and not easy to oxidize. At the same time, the good conductive effect of the guide column is utilized to reduce the connection resistance between the guide plate and the PCBA power supply mainboard, and the present invention is particularly suitable for use under high current conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the illumination lamp of the present invention.

[0017] Figure 2 This is the second schematic diagram of the three-dimensional structure of the illumination lamp of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal exploded structure of the illumination lamp of the present invention.

[0019] Figure 4 This is a schematic diagram of the installation and connection structure of the light panel.

[0020] Figure 5 for Figure 4 A is a partial enlarged schematic diagram.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the lamp holder.

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure for installing and connecting the light board, PCBA power mainboard, and guide column.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the light board.

[0024] Fig. 9 It is a schematic diagram of the guide plate and guide column connection structure.

[0025] Fig.10 This is a schematic diagram of the exploded structure of the guide plate and guide post connection.

[0026] Fig.11 This is a schematic diagram of the three-dimensional structure of the bottom surface of one type of guide plate.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the bottom surface of another guide plate.

[0028] Among them: 1-upper cover, 2-lamp board structure, 21-lamp holder, 211-lamp trough, 212-side slot, 213-guide post hole, 214-first fixing hole, 215-cooling water hole, 22-lamp board, 221-circuit substrate, 222-lamp bead, 223-second fixing hole, 23-guide piece, 231-third fixing hole, 232-protrusion, 233-guide post connecting hole, 234-conductive silver paste, 24-fixing screw, 25-rubber insulation sleeve, 251-gasket, 252-sleeve, 26-guide post, 27-PCBA power supply mainboard, 3-first side cover, 4-second side cover, 5-front side cover, 6-rear side cover, 7-bottom cover, 8-cooling water interface. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are briefly described below in conjunction with the accompanying drawings.

[0030] A lighting fixture, referring to Figure 1-Figure 3, comprising a lamp board structure (2), the lamp board structure (2) being an installation connection structure of a single-row lamp bead lamp board, wherein a pair of upper covers (1) are arranged on the upper surface of a lamp holder (21) of the lamp board structure (2), a gap for illumination by the lamp beads (222) is left between the pair of upper covers (1), the upper covers (1) are also fixedly connected to the lamp holder (21) by screw fixing, so as to facilitate installation, the upper covers (1) are used to cover the installation part of the fixing screws (24) of the lamp board structure (2) and the installation part of the guide piece (23) of the lamp board structure (2), and a first side cover (3) and a second side cover (4) are also arranged on both sides of the pair of upper covers (1), the first side cover (3) and the second side cover (4) fix the lamp holder from both sides. The lamp holder (21) is fixed with screws on the upper part thereof. A front side cover (5) and a rear side cover (6) are also provided on both sides of the lamp holder (21). The rear side cover (6) is provided with two cooling water interfaces (8) corresponding to the cooling water holes (215) of the lamp holder (21). When the irradiation lamp is in use, after the two cooling water interfaces (8) are connected to an external cooling water source, the cooling water is cooled inside the lamp holder (21) to ensure the durable use of the irradiation lamp. A bottom cover (7) is also provided at the bottom of the lamp holder (21). The bottom cover (7) is used to encapsulate a PCBA power supply mainboard (27) inside the bottom cover (7). The bottom cover (7) is connected to the lamp holder (21) to form an integrated irradiation lamp structure with a long columnar structure.

[0031] Among them, the lamp board structure (2), that is, the installation and connection structure of the single-row lamp bead lamp board, refers to Figure 4-Figure 8 The invention relates to a lamp holder (21) of an elongated strip shape. A PCBA power supply mainboard (27) is provided at the bottom of the lamp holder (21). A sunken lamp trough (211) is provided on the upper surface of the lamp holder (21) along the elongated strip direction. A plurality of lamp boards (22) arranged end to end are installed in the lamp trough (211). The lamp boards (22) include a circuit substrate (221). Lamp beads (222) are arranged in a single row on the circuit substrate (221). Second fixing holes (223) are provided on both sides of the lamp beads (222). A bottom surface of the lamp trough (211) is provided with a plurality of lamp boards (222) arranged end to end. A plurality of first fixing holes (214) corresponding to the second fixing holes (223) are provided on the surface of the lamp trough (211); the circuit substrate (221) is fixed by fixing screws (24) between the first fixing holes (214) and the second fixing holes (223), so that the lamp board (22) is screwed to the surface of the lamp trough (211); a guide piece (23) is provided on the upper surface of the plurality of lamp boards (22) for connection, wherein the guide piece (23) is a good conductor of electricity, and the guide piece (23) is a thin sheet having a protrusion (232); the protrusion (232) is arranged in an arc shape, and the Fig.11 and Fig.12In the implementation of the present invention, the guide piece (23) has two structures, wherein the guide piece (23) of one structure comprises two third fixing holes (231) for connecting and fixing the circuit substrate (221), and the guide piece (23) is used for connecting between the light panels (22) at the middle position, wherein the guide piece (23) of the other structure comprises a third fixing hole (231) for connecting and fixing the circuit substrate (221), and the guide piece (23) is used for connecting the light panels (22) at the edge position and the guide column (26) of the PCBA power supply mainboard (27), through the third fixing hole (231), The guide piece (23) and the lamp board (22) are fixed to the surface of the lamp trough (211) by means of fixing screws (24), and the bottom surfaces of the lamp board (22) and the guide piece (23) are electrically connected. The circuit substrate (221) and the fixing screws (24) are insulated. After the guide piece (23) is connected to the circuit substrate (221), its protruding portion (232) protrudes in the direction of the side wall of the lamp trough (211). A guide post connection hole (233) is provided on the protruding portion (232). A fixing screw (24) is also provided in the guide post connection hole (233). The guide post connection hole (233) The fixing screws (24) inside the guide post (26) are connected to the guide post (26), which is a good conductor of electricity. The guide post (26) is electrically connected to the bottom surface of the guide piece (23). The guide post (26) passes through the lamp holder (21) from the bottom of the lamp trough (211) and forms an electrical connection with the PCBA power supply main board (27). The PCBA power supply main board (27) is locked and fixed to the bottom of the guide post (26) by the fixing screws (24). After the multiple guide posts (26) are connected to the PCBA power supply main board (27), the multiple guide posts (26) form a stable support for the PCBA power supply main board (27), and the lamp board The structure (2) is configured to be modularized by means of a plurality of lamp panels (22) arranged side by side, and is insulated and fixed in the lamp slot (211) of the lamp holder (21) by means of fixing screws (24). At the same time, the guide piece (23) is used to realize the electrical connection between the lamp panels (22) and between the lamp panels (22) and the PCBA power supply main board (27), so that installation is convenient. At the same time, it is also convenient to replace a defective lamp panel (22) in a targeted manner during maintenance. The installation space of the lamp panel (22) is small and the structure is compact, so that the design, installation and use of the lighting fixture for use in various occasions are convenient.

[0032] A plurality of side grooves (212) corresponding to the protrusions (232) are provided on the side wall of the lamp trough (211), and a guide post hole (213) penetrating the upper and lower sides of the lamp holder (21) is provided at the bottom of the side groove (212). When the guide post (26) is fixedly connected to the guide piece (23) and the PCBA power supply mainboard (27) by means of fixing screws (24), there is a gap greater than 2 mm between the inner wall of the guide post hole (213) and the outer wall of the guide post (26). The side groove (212) can achieve the side of the protrusion (232) of the guide piece (23) to give way after installation, and the fixing screws (24) can fix the guide post (26) connected on the side. The guide post (26) ) penetrates the guide post hole (213) from the side, and the guide post (26) is connected to the PCBA power main board (27). When connected, the bottom cross section of the guide post (26) abuts against the printed circuit of the PCBA power main board (27), thereby realizing the electrical connection between the PCBA power main board (27) and the guide post (26). At the same time, when the guide post (26) penetrates the guide post hole (213), the gap between the outer wall of the guide post (26) and the inner wall of the guide post hole (213) is greater than 2 mm, so that the spacing distance between the guide post (26) and the lamp holder (21) is sufficiently large, and there is a good insulation effect between the outer wall of the guide post (26) and the inner wall of the guide post hole (213).

[0033] In a further implementation of the present invention, the guide post (26) is a tube body with a thickness greater than 2 mm, and an insulating paint is sprayed on the outer surface of the tube body. The guide post (26) has a sufficiently large cross-section. The guide post (26) conducts electricity through the cross-section of the tube body. The guide post (26) is used to achieve line connection between the guide piece (23) and the PCBA power supply mainboard (27), which can greatly reduce the conduction resistance and avoid heating of the guide post (26). At the same time, because the guide post (26) is set in a tube shape, after installation, the guide post (26) will not shake after being fixed by the fixing screw (24). The guide post (26) 26) The PCBA power main board (27) can be further stably supported and connected, so that the connection between the PCBA power main board (27) and the lamp holder (21) is more stable. When the illuminating lamp is moved or installed in the use equipment, the guide column (26) will not shake, causing the contact between the guide column (26) and the guide column hole (213) of the lamp holder (21), thereby improving the safety performance. Moreover, after the outer surface of the guide column (26) is sprayed with insulating paint, the insulation effect of the guide column (26) on the lamp holder (21) can be further improved, thereby providing electricity safety.

[0034] In further implementation, refer to Fig.11 , Fig.12A layer of 6-10 μm conductive silver paste (234) is printed on the bottom surface of the guide plate (23). The conductive silver paste (234) contains 50%-70% silver particles. Silver has good oxygen stability, low resistivity and is not easily oxidized, thereby ensuring that the conductive silver paste (234) has good stable quality during long-term use. When the guide plate (23) is fixed on the surface of the circuit substrate (221) by the fixing screws (24), the conductive silver paste (234) and the circuit on the circuit substrate (221) are bonded together to realize the electrical connection between the guide plate (23) and the circuit substrate (221). When the guide piece (23) is fixed to the guide post (26) by the fixing screw (24), the conductive silver paste (234) abuts against the conductive cross section of the guide post (26) to realize the electrical connection between the guide piece (23) and the guide post (26). The conductive silver paste (234) can increase the contact area between the bottom surface of the guide piece (23) and the cross section of the circuit substrate (221) and the guide post (26), and can also reduce the conductive resistance, thereby ensuring that under high current working conditions, the contact parts between the guide piece (23) and the guide post (26) and the guide piece (23) and the circuit substrate (221) are prevented from heating.

[0035] In a preferred embodiment of the present invention, the fixing screws (24) connected to the surface of the lamp trough (211) and the circuit substrate (221) are insulated, thereby improving the safety performance of the irradiation lamp. Specifically, referring to Figure 8-Figure 10The fixing screw (24) is provided with a rubber insulating sleeve (25) on its exterior, and the rubber insulating sleeve (25) includes a pad cap (251) and a sleeve (252). When the fixing screw (24) is connected between the first fixing hole (214) and the second fixing hole (223), the rubber insulating sleeve (25) is sleeved on the inner wall of the second fixing hole (223) of the circuit substrate (221) through the sleeve (252), and the pad cap (251) is cushioned on the surface of the circuit substrate (221). When the fixing screw (24) is connected between the first fixing hole (214), the second fixing hole (223), and the third fixing hole (231), the rubber insulating sleeve (25) is sleeved on the inner walls of the third fixing hole (231) and the second fixing hole (223), and the pad cap (251) is cushioned on the surface of the guide piece (23). At the same time, the rubber insulating sleeve (25) has elasticity, and the pad cap (251) When the pad is placed against the surface of the guide piece (23) or against the surface of the circuit substrate (221), the fixing screw (24) has a certain elastic buffer when the screw is fixed, so that the fixing screw (24) to the guide piece (23) or the circuit substrate (221) is more stably fixed and can achieve the purpose of insulation, thereby avoiding leakage between the circuit substrate (221) or the guide piece (23) and the lamp holder (21), thereby improving the safety performance of the irradiation lamp. Moreover, when the conductive silver paste (234) is printed, there is a gap of 1 to 2 mm between the conductive silver paste (234) and the edge of the opening of the third fixing hole (231) on the bottom surface of the guide piece (23), so that there is a sufficiently safe spacing distance between the conductive silver paste (234) and the fixing screw (24) connected in the third fixing hole (231), thereby ensuring an excellent insulation effect between the conductive silver paste (234) and the fixing screw (24) connected in the third fixing hole (231).

[0036] In the specific implementation and application process of the present invention, the lamp beads (222) are LED lamp beads, especially UV-LED lamp beads. The large current required for the use of UV-LED lamp beads enables the UV-LED lamp beads to irradiate the photosensitive resin to produce a good light-curing effect. During the use of the UV-LED lamp beads, a large amount of heat will be generated, which affects the service life of the UV-LED lamp beads. Therefore, the installation and connection structure of the single-row lamp bead lamp board of the present invention has excellent heat dissipation effect, is easy to install and connect, and meets the conditions of large current use, which greatly broadens the application field of the irradiation lamp of the present invention.

[0037] The above embodiments only express the implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A mounting and connecting structure for a single-row lamp bead lamp board, characterized in that: The invention comprises a long strip-shaped lamp holder (21), wherein a PCBA power supply mainboard (27) is provided at the bottom of the lamp holder (21), and a sunken lamp trough (211) is provided on the upper surface of the lamp holder (21) along the long strip direction, and a plurality of lamp boards (22) arranged end to end are installed in the lamp trough (211), and the lamp boards (22) comprise a circuit substrate (221), and lamp beads (222) are arranged in a single row on the circuit substrate (221), and second fixing holes (223) are provided on both sides of the lamp beads (222), and a plurality of corresponding fixing holes (223) are provided on the bottom surface of the lamp trough (211). ), the circuit substrate (221) is fixed by a fixing screw (24) located between the first fixing hole (214) and the second fixing hole (223), so that the lamp panel (22) is screwed to the surface of the lamp trough (211), and a plurality of lamp panels (22) are connected by a guide piece (23) on the upper surface, the guide piece (23) is a good conductor of electricity, and the guide piece (23) is a thin sheet with a protrusion (232), and one or two third fixing holes (231) for connecting and fixing the circuit substrate (221) are provided on the guide piece (23), and the third fixing holes (231) for connecting and fixing the circuit substrate (221) are provided on the guide piece (23). The third fixing hole (231) is formed between the guide piece (23) and the lamp board (22) and is fixed to the surface of the lamp trough (211) by means of fixing screws (24), and the lamp board (22) and the bottom surface of the guide piece (23) are electrically connected, the circuit substrate (221) and the fixing screws (24) are insulated, the protruding portion (232) protrudes in the direction of the side wall of the lamp trough (211), a guide post connecting hole (233) is formed on the protruding portion (232), a fixing screw (24) is also provided in the guide post connecting hole (233), and the fixing screw (24) in the guide post connecting hole (233) is electrically connected to the bottom surface of the lamp trough (211). The fixing screw (24) is connected to a guide column (26), the guide column (26) is a good electrical conductor, the guide column (26) is electrically connected to the bottom surface of the guide plate (23), the guide column (26) passes through the lamp holder (21) from the bottom of the lamp trough (211) and forms an electrical connection with the PCBA power main board (27), the PCBA power main board (27) is locked and fixed to the bottom of the guide column (26) by the fixing screw (24), and after a plurality of the guide columns (26) are connected to the PCBA power main board (27), the plurality of the guide columns (26) form a stable support for the PCBA power main board (27).

2. According to claim 1, a single-row lamp bead lamp board installation and connection structure is characterized in that: A plurality of side grooves (212) corresponding to the protruding portions (232) are provided on the side walls of the lamp trough (211); guide post holes (213) penetrating the upper and lower sides of the lamp holder (21) are provided at the bottom of the side grooves (212); and a gap greater than 2 mm is provided between the inner wall of the guide post hole (213) and the outer wall of the guide post (26).

3. According to the installation and connection structure of a single-row lamp bead lamp board as described in claim 1, it is characterized in that: The guide column (26) is a tube body with a thickness greater than 2 mm, and an insulating paint is sprayed on the outer surface of the tube body.

4. According to the installation and connection structure of a single-row lamp bead lamp board as described in claim 1, it is characterized by: A fixing screw (24) connected to the surface of the lamp trough (211) has a rubber insulating sleeve (25) sleeved on its exterior. The rubber insulating sleeve (25) comprises a pad cap (251) and a sleeve (252). When the fixing screw (24) is connected between the first fixing hole (214) and the second fixing hole (223), the rubber insulating sleeve (25) is sleeved on the inner wall of the second fixing hole (223) of the circuit substrate (221) through the sleeve (252), and the pad cap (251) is cushioned on the surface of the circuit substrate (221). When the fixing screw (24) is connected between the first fixing hole (214), the second fixing hole (223), and the third fixing hole (231), the rubber insulating sleeve (25) is sleeved on the inner walls of the third fixing hole (231) and the second fixing hole (223), and the pad cap (251) is cushioned on the surface of the guide piece (23).

5. According to the installation and connection structure of a single-row lamp bead lamp board as claimed in claim 1, it is characterized in that: The guide piece (23) has a layer of 6-10 μm conductive silver paste (234) printed on its bottom surface. When the guide piece (23) is fixed to the surface of the circuit substrate (221) by means of fixing screws (24), the conductive silver paste (234) and the circuit on the circuit substrate (221) are bonded together to realize electrical connection between the guide piece (23) and the circuit substrate (221). The conductive silver paste (234) and the conductive cross section of the guide post (26) are abutted to realize electrical connection between the guide piece (23) and the guide post (26).

6. According to claim 5, the installation and connection structure of a single-row lamp bead lamp board is characterized in that: There is a gap of 1 to 2 mm between the conductive silver paste (234) and the opening edge of the third fixing hole (231) on the bottom surface of the guide plate (23).

7. An illumination lamp, characterized in that: The invention comprises a lamp board structure (2), wherein the lamp board structure (2) is an installation connection structure of a single-row lamp bead lamp board as claimed in any one of claims 1 to 6, wherein a pair of upper cover plates (1) are arranged on the upper surface of a lamp holder (21) of the lamp board structure (2), a gap for illumination by the lamp bead (222) is reserved between the pair of upper cover plates (1), a first side cover (3) and a second side cover (4) are arranged on both sides of the pair of upper cover plates (1), a front side cover (5) and a rear side cover (6) are arranged on both sides of the lamp holder (21), and two cooling water interfaces (8) corresponding to the cooling water holes (215) of the lamp holder (21) are arranged on the rear side cover (6), and cooling of cooling water is achieved inside the lamp holder (21) by means of the two cooling water interfaces (8).

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