Combined showcase lamp

Abstract

The application provides a combined showcase lamp, comprising a lamp tube and a lamp holder mounted on the lamp tube, wherein the lamp tube is connected by a plurality of single tubes in sequence, the two ends of the single tube are provided with interconnection joints, a circuit board is assembled in the single tube, the circuit board extends along the length direction of the single tube, the interconnection joints are electrically connected with the circuit board, at least part of the single tubes are provided with mounting ports and the lamp holder is mounted through the mounting ports, the lamp holder comprises a power taking part and a cylinder, an LED light source module and a lens are mounted in the inner cavity of the cylinder, the lens is located on the light emitting direction of the LED light source module, and the power taking part is configured to enter the mounting port and be electrically connected with the circuit board. The application is combined by the single tubes and the interconnection joints, and the rotatable lamp holder is combined, so that the lamp can be freely combined according to the shape of the showcase, various lighting application occasions can be met, and the lamp is compatible with the use of the showcase or the window.

Description

Technical Field

[0001] This invention relates to the field of lighting fixtures, and more particularly to a modular display case light. Background Technology

[0002] In shopping malls, supermarkets, and other similar settings, to better showcase merchandise within display cases, multiple light fixtures can be assembled onto a common bracket or track and installed as a whole on a suitable structure, such as the frame of the display case. The bracket or track provides power to the light fixtures. Each light fixture can be installed independently and its own illumination angle can be adjusted to create a customized lighting space, providing focused lighting for the exhibits and highlighting their high-end quality.

[0003] However, existing display case lights are all designed to be of a fixed length, which cannot meet the needs of display cases of different lengths. The lifespan of the light is also easily affected by the twisting and tangling of the wires during the adjustment process.

[0004] Therefore, those skilled in the art are dedicated to developing a modular display case light that can be flexibly and freely combined according to the length of the display case and meets various lighting application occasions. Summary of the Invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the existing display case light design cannot meet the needs of various application occasions and the lamp head adjustment effect is not good.

[0006] To achieve the above objectives, the present invention provides a modular display case light, comprising a lamp tube and a lamp holder mounted on the lamp tube. The lamp tube is composed of several individual tubes connected sequentially. Each individual tube has an interconnecting connector at both ends. A circuit board is assembled inside each individual tube, extending along the length of the individual tube. The interconnecting connector is electrically connected to the circuit board. At least some of the individual tubes have mounting ports and lamp holders that are installed through the mounting ports. The lamp holder includes a power taking part and a cylindrical body. An LED light source module and a lens are installed in the inner cavity of the cylindrical body. The lens is located in the light emission direction of the LED light source module. The power taking part is configured to enter the mounting port and be electrically connected to the circuit board.

[0007] Furthermore, an insulating bracket is fixedly configured inside the single tube. The bracket extends along the length of the single tube and has a first strip groove inside it. The circuit board is fitted into the first strip groove.

[0008] Furthermore, the interconnect connector is snapped onto the end of the bracket, which has a snap-fit ​​groove. The interconnect connector has a snap-fit ​​block that matches the snap-fit ​​groove. The interconnect connector is electrically connected to the circuit board inside the bracket via wires.

[0009] Furthermore, the bracket extends along the length of the single tube and has a second strip groove inside the bracket. The second strip groove is penetrated by the mounting port. One end of the power take-up part enters the mounting port and protrudes circumferentially to form an ear. The ear can rotate with the power take-up part into the second strip groove, thereby locking the power take-up part on the bracket.

[0010] Furthermore, the ear is formed on the outer wall of the mounting groove or mounting base.

[0011] Furthermore, the interconnecting connector includes a male plug and a female plug. The male plug of a single tube is adapted to connect to the female plug of another adjacent single tube. When the male plug is provided at one end of the single tube, the male plug has an extension portion extending outward from the single tube. When the female plug is provided at one end of the single tube, the female plug is recessed inward from the single tube to form a receiving cavity that matches the extension portion.

[0012] Furthermore, a first elastic member is fixedly provided on the inner wall of the receiving cavity to cooperate with the outer peripheral wall of the extension of the corresponding male plug. After the extension is inserted into the receiving cavity, the first elastic member is elastically supported between the receiving cavity and the extension of the male plug.

[0013] Optionally, the first elastic element is a drum-shaped spring.

[0014] Furthermore, at least one end of the lamp tube is connected to a support pole. One end of the support pole is provided with a plug that is compatible with the interconnecting connector, and the other end of the support pole is provided with a connector and a power terminal. The power terminal is connected to an external power source, and the plug and the power terminal are electrically connected.

[0015] Furthermore, the single tube can come in various shapes, including straight or bent types.

[0016] Furthermore, a probe suitable for electrical connection with the circuit board is fixedly installed on the power-taking part. The probe and the LED light source module are connected by wires. An inner hole is opened in the power-taking part so that the wire can pass through the inner hole and enter the inner cavity.

[0017] Furthermore, the power-taking part and the cylinder are rotatably connected. The power-taking part is provided with a ball head at one end facing the cylinder. The non-light-emitting end of the cylinder forms a constriction, which connects to the inner cavity. The ball head is rotatably embedded in the constriction. The inner cavity of the cylinder contains a second elastic member. One end of the second elastic member elastically abuts against the ball head and applies a force to the ball head outward from the cylinder.

[0018] Optionally, the second elastic element may include a spring, a silicone element, or a rubber element.

[0019] Furthermore, the inner cavity of the cylinder contains a heat sink, which is configured to be attached to the LED light source module, and the outer circumferential wall of the heat sink abuts against the inner wall of the cylinder.

[0020] Furthermore, a lamp housing is fitted onto the outside of the cylinder, and the lamp housing can slide relative to the cylinder circumferentially along the outer surface of the cylinder. A limiting part is formed on the cylinder to restrict the sliding of the lamp housing.

[0021] Furthermore, a lampshade is fixedly covered at the light-emitting end of the cylinder, and one end face of the lampshade is connected to the light-emitting end of the cylinder. The lampshade forms a retaining ring that limits the end of the lamp housing in the circumferential direction and cooperates with the cylinder to restrict the axial sliding of the lamp housing.

[0022] Technical effects:

[0023] The modular display case light of this invention is assembled from individual tubes and interconnecting connectors, allowing for flexible and free combination according to the shape of the display case, meeting various application occasions and compatible with display cases or shop windows. It uses a rotatable lamp head, and the power supply part can rotate relative to the cylinder to adjust the angle. During relative rotation, the wire in the inner hole is not affected. By setting a sliding outer shell outside the cylinder, the torsional force acting on the outside can be counteracted, and the wire is not twisted or wound, providing better working stability.

[0024] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0025] Figure 1 This is a longitudinal cross-sectional structural diagram of the combined display case light of the present invention.

[0026] Figure 2 The present invention is a combined display case light. Figure 1 A schematic diagram of the AA cross-sectional structure.

[0027] Figure 3 This is an exploded structural diagram of the combined display case light of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the bracket for the combined display case light of the present invention.

[0029] Figure 5 This is a schematic diagram of the connection structure of the combined display case light of the present invention.

[0030] Figure 6 This is a schematic diagram of the external structure of the lamp head of the combined display case lamp of the present invention, wherein (a) and (b) show different ear structures.

[0031] Figure 7 This is an exploded structural diagram of the lamp head of the combined display case lamp of the present invention.

[0032] Figure 8 This is a schematic diagram of the structure of the combined display case light of the present invention assembled into a goal light.

[0033] Figure 9 This is a schematic diagram of the structure of the combined display case light of the present invention assembled into a vertical pole light.

[0034] in:

[0035] 1. Lamp tube, 10. Single tube, 101. Mounting port, 11. Circuit board, 12. Housing, 13. Bracket, 131. First slot, 132. Second slot, 133. Snap-fit ​​slot, 134. Opening

[0036] 2. Lamp base; 20. Power take-up part; 201. Inner hole; 202. Ball head; 203. Mounting groove; 204. Ear; 205. Stop surface; 21. Cylinder; 211. Narrowing; 212. Limiting part; 22. LED light source module; 221. Lamp board; 222. LED chip; 23. Lens; 24. Probe; 25. Mounting base; 26. Second elastic element; 27. Heat sink; 28. Lamp housing; 29. ​​Lamp shade; 291. Retaining ring.

[0037] 3. Interconnector; 301. Snap-fit ​​block; 302. Head; 303. Limiting ring; 301a. Guide surface; 301b. Limiting surface; 31. Male plug; 311. Extension; 312. Socket; 313. Sleeve; 32. Female plug; 321. Receiving cavity; 322. Pin; 33. First elastic element; 331. Mounting ring; 332. Spring.

[0038] 4 uprights, 40 plugs, 41 connectors, 42 power terminals. Detailed Implementation

[0039] like Figures 1 to 5 The diagram shows a modular display case light provided by the present invention, comprising a lamp tube 1 and a lamp holder 2 mounted on the lamp tube 1. The lamp tube 1 has a modular structure, consisting of several individual tubes 10 connected sequentially. Each individual tube 10 has an interconnecting connector 3 at both ends. A circuit board 11 is mounted inside each individual tube 10, extending along the length of the individual tube 10. The interconnecting connectors 3 are electrically connected to the circuit board 11 via wires. By sequentially connecting multiple individual tubes 10 through the interconnecting connectors 3, a lamp tube 1 with a specific shape can be assembled as needed to accommodate the arrangement of various display cases.

[0040] Figure 1 and Figure 2This is a cross-sectional structural diagram of a modular display case light. Among the several individual tubes 10 that make up the light tube 1, at least some of the individual tubes 10 have mounting ports 101 and are equipped with lamp holders 2, which are installed through the mounting ports 101. The lamp holder 2 includes a power take-off section 20 and a cylindrical body 21. When using LED lights, an LED light source module 22 and a lens 23 are installed inside the cavity of the cylindrical body 21. The lens 23 is located in the light-emitting direction of the LED light source module 22. The power take-off section 20 is configured to enter the mounting port 101 and electrically connect to the circuit board 11. Since the circuit board 11 in the modular light tube 1 is connected in series by interconnecting connectors 3, the circuit is continuous. Power can be quickly taken off by connecting the lamp holders 2 through each mounting port 101 and connecting the power take-off section 20 of the lamp holder 2 to the circuit board 11, which is suitable for quickly arranging the lamp holder positions according to the lighting requirements.

[0041] The lamp holder 2 installed on the single tube 10 of this invention has a power-taking part 20 connected to the circuit board 11 for power supply, and the cylinder 21 and the power-taking part 20 are rotatable. The cross-sectional structure of the lamp holder is specifically shown in the figure. The power-taking part 20 is fixedly mounted with a probe 24 suitable for electrical connection with the conductive layer on the circuit board 11. The probe 24 and the LED light source module 22 are connected by a wire (not shown in the figure). The power-taking part 20 has an inner hole 201, which allows the wire to pass through the inner hole 201 and enter the inner cavity of the cylinder 21.

[0042] The power-taking part 20 and the cylinder 21 are rotatably connected. A ball head 202 is provided at one end of the power-taking part 20 facing the cylinder 21. A constriction 211 is formed at the non-light-emitting end of the cylinder 21, which communicates with the inner cavity. The ball head 202 is rotatably embedded in the constriction 211. The other parts of the power-taking part 20 are located outside the constriction 211 of the cylinder 21. In this way, the constriction 211 restricts the ball head 202 from leaving the cylinder 21 while providing the ball head 202 with rotation space.

[0043] The other end of the power-taking part 20 is a mounting groove 203, which is integrated with the ball head 202. A mounting base 25 suitable for mounting the probe 24 is fixedly disposed in the mounting groove 203. In one embodiment, the mounting base 25 and the mounting groove 203 are fixedly connected by a snap-fit ​​mechanism. Figure 6 The diagram illustrates an implementation where the two components are fixedly connected. A latching block protrudes from the periphery of the mounting base 25, and a corresponding latching groove is formed on the mounting groove 203. The relative rotation between the mounting base 25 and the mounting groove 203 is limited by the limiting action between the latching block and the latching groove. The mounting base 25 is provided with an insertion hole for the probe 24. After the probe 24 is installed, the connecting wire at the end of the probe 24 passes through the insertion hole, through the inner hole 201, and into the inner cavity. Figure 6 , Figure 7 As shown, probes 24 are configured as a pair, each connected to a wire, which can be a positive or negative wire. They are standard components used to provide power to the LED light source module.

[0044] The single tube 10 includes a housing 12. For electrical insulation safety, an insulating bracket 13 is fixedly installed inside the housing 12. The bracket 13 extends along the length of the single tube 10 and has a first slot 131. The circuit board 11 is fitted into the first slot 131. An interconnecting connector 3 is snapped into the end of the bracket 13. The bracket 13 has a snap-fit ​​groove 133, and the interconnecting connector 3 has a snap-fit ​​block 301 that matches the snap-fit ​​groove 133. The interconnecting connector 3 is electrically connected to the circuit board 11 within the bracket 13 via a wire.

[0045] In such Figure 4 In the illustrated embodiment, the bracket 13 has a tubular outer wall, and the interconnecting connector 3 has a cylindrical head 302 and an outwardly radially extending limiting ring 303 adjacent to the head 302. The outer wall of the connector 302 protrudes outward in a circumferential direction to form a pair of snap-fit ​​blocks 301. A pair of snap-fit ​​grooves 133 are correspondingly formed on the bracket 13. When the interconnecting connector 3 is connected to the bracket 13, the head 302 is inserted into the inside of the bracket 13, so that the snap-fit ​​blocks 301 and the snap-fit ​​grooves 133 snap together. After the head 302 is inserted, the limiting ring 303 abuts against the end of the bracket 13. Preferably, along the installation insertion direction, a guide surface 301a is provided at the front end of the snap-fit ​​block 301 facing the snap-fit ​​groove 133, and a limiting surface 301b is provided at the rear end. This makes it easy for the snap-fit ​​block 301 to slide into the snap-fit ​​groove 133 and makes it difficult to detach after connection.

[0046] Interconnector 3 provides interconnection functionality between individual tubes 10. In one specific embodiment of the invention, interconnector 3 includes a male plug 31 and a female plug 32. The male plug 31 of one individual tube 10 is adapted to connect to the female plug 32 of another adjacent individual tube 10. When the male plug 31 is provided at one end of the individual tube 10, the male plug 31 has an extension 311 extending outward from the individual tube 10. When the female plug 32 is provided at one end of the individual tube 10, the end of the individual tube 10 where the female plug 32 is located is recessed inward to form a receiving cavity 321 that is adapted to the extension 311.

[0047] like Figure 1 and Figure 5 In the specific structure shown, the extension 311 of the male plug 31 has a recessed center to form a insertion hole 312, and the female plug 32 has a corresponding pin 322 in the receiving cavity 321 that matches the insertion hole 312. For the connection of two adjacent single tubes 10, if one single tube 10 is connected by the extended male plug 31, then the other single tube 10 is provided with a corresponding female plug 32 to connect to the male plug 31. During assembly, the pin 322 and the insertion hole 312 are connected to achieve structural and electrical interconnection.

[0048] Furthermore, the male plug 31 includes a sleeve 313 surrounding the extension 311. A first elastic element 33, which mates with the sleeve 313 of the corresponding male plug 31, is fixedly provided on the inner wall of the receiving cavity 321. After the extension 311 is inserted into the receiving cavity 321, the first elastic element 33 elastically supports the receiving cavity 321 and the sleeve 313 of the male plug 31. Preferably, the first elastic element 33 is a drum-shaped spring, which includes mounting rings 331 on both sides and a spring piece 332 connecting the two mounting rings 331. The center of the spring piece 332 is recessed inward, so that when the female plug 32 mates with the male plug 31, the mounting rings 331 are supported within the receiving cavity 321 of the female plug 32, and the sleeve 313 on the outer side of the extension 311 of the male plug 31 abuts against the spring piece 332, achieving positioning and installation through friction.

[0049] Inside the single tube 10, the bracket 13 extends along the length of the single tube 10 and a second strip groove 132 is provided inside the bracket 13. The second strip groove 132 is penetrated by the mounting port 101. One end of the power taking part 20 enters the mounting port 101 and protrudes circumferentially to form an ear 204. The ear 204 can rotate with the power taking part 20 and enter the second strip groove 132, thereby locking the power taking part 20 onto the bracket 13.

[0050] like Figure 6 As shown, in an embodiment of the present invention, the power taking part 20 has two oppositely arranged ears 204 in the circumferential direction, which have a large radial length along the direction of the ears 204. The second strip groove 132 forms a corresponding opening 134 as the mounting port 101 passes through. The opening 134 has a length direction and a width direction. The radial dimension of the opening 134 in the length direction is suitable for the ears 204 of the power taking part 20 to extend into, while the width dimension of the opening 134 is smaller than the length of the ears 204 on both sides.

[0051] Thus, when the ears 204 of the power-taking unit 20 are installed into the second slot 132, they have a locked position and an unlocked position: In the locked position, the extension direction of the two ears 204 corresponds to the width direction of the opening 134 of the second slot 132, and the ears 204 are engaged in the second slot 132, locking the power-taking unit 20 onto the bracket 13; in the unlocked position, the extension direction of the two ears 204 corresponds to the length direction of the opening 134 of the second slot 132, and the ears 204 are not constrained by the second slot 132, allowing them to move freely within the opening 134 of the second slot 132 for easy installation and removal. Depending on the different length and width settings of the opening 134, the change of the above state is achieved by rotating the power-taking unit 20.

[0052] The aforementioned ear portion 204 is formed on the outer wall of the mounting groove 203 of the power-taking part 20, or it can be formed on the outer wall of the mounting base 25, depending on the position of the second strip groove 132. As long as its position relative to the power-taking part 20 is fixed, when the power-taking part 20 enters the mounting opening 101, the clamping power-taking part 20 can be rotated circumferentially along its central axis to enter a stable locking position. Figure 6 The diagram shows the configuration of the power take-off section 20 on the lamp holder 2. Figure 6 In (a), the ear portion 204 is configured to extend outward from the outer wall of the mounting base 25. Figure 6 In (b), the ear portion 204 is configured as two ends protruding along the length direction of the annular end face of the mounting base 25. The access end of the mounting groove 203 includes a stop surface 205 for limiting the position. During installation, the stop surface 205 abuts against the bottom end of the second strip groove 132 to control the position of the power take-up part 20 entering the single tube 10. The mounting base 25 extends into the opening 134 of the second strip groove 132 and is then rotated to lock the connection. Further, the ear portion 204 is configured to gradually increase in radial dimension along the rotation direction, and the radial dimension of the end of the ear portion 204 along the rotation direction is greater than the depth of the second strip groove 132 in the bracket 13, so that after entering the second strip groove 132, the outer side of the ear portion 204 eventually locks into the depth of the second strip groove 132 with rotation.

[0053] The power-gathering part of the present invention provides both electrical and mechanical connections between the lamp holder 2 and the single tube 10, and also provides operability for the lamp holder 2 itself. For example... Figure 7 As shown, in another embodiment of the present invention, a second elastic member 26 is further included in the inner cavity of the cylinder 21. One end of the second elastic member 26 elastically abuts against the ball head 202 and applies a force to the ball head 202 outward from the cylinder 21. Through the damping effect provided by the second elastic member 26, the ball head 202 is elastically compressed after the lamp head 2 rotates, forming friction between the ball head 202 and the inner wall of the cylinder 21, thus positioning the rotated ball head 202. When rotation is required, the ball head 202 can be pressed in, thus providing space for the ball head 202 to move and facilitate rotation angle.

[0054] The LED light source module 22 includes a lamp board 221 and an LED chip 222. The LED chip 222 is disposed on one end face of the lamp board 221. The lamp board 221 and the lens 23 abut against each other, and the light-incident surfaces of the LED chip 222 and the lens 23 are arranged opposite each other. Preferably, the inner cavity of the cylindrical body 21 includes a heat sink 27, which is disposed against the LED light source module 22, and the circumferential outer wall of the heat sink 27 abuts against the inner wall of the cylindrical body 21. A relief groove may be provided on the heat sink 27 to form a gap in the inner wall of the cylindrical body 21 suitable for the passage of wires and to connect the wires to the lamp board 221. In one embodiment of the present invention, one end of the second elastic member 26 elastically abuts against the ball head 202, and the other end elastically abuts against the heat sink 27.

[0055] Options for the second elastic element 26 include a spring or a hollow silicone or rubber element, which, in addition to having good elasticity, is lightweight and space-saving, and allows wires to pass easily through the cavity.

[0056] A lamp housing 28 is further fitted onto the outside of the cylindrical body 21, and the lamp housing 28 can slide circumferentially relative to the outer surface of the cylindrical body 21. The advantage of this design is that when used as a small lamp head 2, during installation or angle adjustment, the user will hold a larger portion of the outer side of the lamp head 2. In this case, the external force on the lamp housing 28 will only cause the lamp housing 28 to slide without affecting the cylindrical body 21, thus preventing the wires inside the lamp head 2 from twisting or becoming tangled. Preferably, a limiting part 212 is formed on the cylindrical body 21 to restrict the sliding of the lamp housing 28, which is used to abut one end of the lamp housing 28. The limiting part 212 restricts the axial sliding of the lamp housing 28.

[0057] A lampshade 29 is fixedly covered at the light-emitting end of the cylindrical body 21. One end face of the lampshade 29 abuts against the lens 23 inside the cavity of the cylindrical body 21, and the other end face of the lampshade 29 is connected to the light-emitting end of the cylindrical body 21. The lampshade 29 is connected to the light-emitting end of the lens 23, and its main function is to provide a light-shielding angle to achieve a certain anti-glare effect. The lampshade 29 and the end face of the cylindrical body 21 are connected by a threaded connection or other commonly used connection methods in the art. A retaining ring 291 is formed outward along the circumferential sidewall of the lampshade 29 to limit the end face of the lamp housing 28, and together with the limiting part 212 on the cylindrical body 21, it cooperates to limit the axial sliding of the lamp housing 28. Therefore, the axial sliding of the lamp housing 28 relative to the cylindrical body 21 is restricted, and for the circular cylindrical body 21, it is limited to circumferential rotation along the surface of the cylindrical body 21.

[0058] With the aforementioned rotatable lamp head, after the power supply unit 20 is connected to the outside, when the angle is adjusted by operating the cylinder 21, the wire is less affected by the pulling force in the inner cavity because it passes through the conductive part. At the same time, the rotatability of the lamp housing 28 also counteracts the torsional force exerted by the user on the outside. The lamp housing 28 rotates under force while the cylinder 21 does not easily rotate, so that the internal wire is not twisted and wound, providing better working stability.

[0059] To facilitate the fixed installation of the modular display case light of the present invention, at least one end of the lamp tube 1 is connected to the upright 4. One end of the upright 4 is provided with a plug 40 that is compatible with the interconnecting connector 3. The plug 40 can be a male plug or a female plug. The other end of the upright 4 is provided with a connecting seat 41 and a power terminal 42. The connecting seat 41 is suitable for fixed installation on the display case. The power terminal 42 is connected to an external power source. The plug 40 and the power terminal 42 are electrically connected. The upright 4 is provided with a power supply wire.

[0060] As for the single tube 10 that makes up the lamp tube 1, the single tube 10 includes straight strip type or bent type. By interconnecting the single tubes 10 of different shapes, the lamp tube 1 shape can be formed to meet the needs of different display case lights. The lamp head 2 is installed on the single tube 10 in conjunction with the lamp head 2 to achieve various lighting purposes.

[0061] To provide a better aesthetic appearance, the outer shell 12 of each individual tube 10 is made of a metal material, such as aluminum alloy, which gives it a certain luster after connection. Each individual tube 10 is made of a round tube with the same diameter. Each individual tube 10 can be equipped with its own outer shell 12, which facilitates flexible assembly. Alternatively, multiple individual tubes 10 can be equipped with an integrated outer shell 12, which requires interconnection between the various brackets 13 before the outer shell 12 is attached to achieve a better aesthetic effect.

[0062] In such Figure 8 In one embodiment of the present invention shown, several straight single tubes 10 are interconnected, and then bent single tubes 10 are connected on both sides to form a lamp tube 1. Two power supply poles 4 are then arranged on both sides of the lamp tube 1, and each is connected to an interconnecting connector 3. After installation, the whole structure forms the effect of a goal light.

[0063] In such Figure 9 In another embodiment of the present invention, several straight single tubes 10 are interconnected to form a strip lamp tube 1, and a pole 4 is set up. A connector 40 is set on the top of the pole 4, and the lamp tube 1 is connected to the top of the pole 4 in a vertical direction. After installation, the whole form a vertical pole lamp effect.

[0064] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A modular display case light, comprising a lamp tube (1) and a lamp holder (2) mounted on the lamp tube (1), characterized in that, The lamp tube (1) is composed of several single tubes (10) connected in sequence. Each single tube (10) has an interconnecting connector (3) at both ends. A circuit board (11) is assembled inside each single tube (10). The circuit board (11) extends along the length of the single tube (10). The interconnecting connector (3) is electrically connected to the circuit board (11). At least some of the single tubes (10) have an installation port (101) and a lamp holder (2) that is installed through the installation port (101). The lamp holder (2) includes a power take-off part (20) and a cylindrical body (21). An LED light source module (22) and a lens (23) are installed inside the cavity of the cylindrical body (21). The lens (23) is located in the light-emitting direction of the LED light source module (22). The power take-off part (20) is configured to enter the installation port (101) and be electrically connected to the circuit board (11). The power-taking part (20) and the cylinder (21) are rotatably connected. The power-taking part (20) is provided with a ball head (202) at one end facing the cylinder (21). The non-light-emitting end of the cylinder (21) forms a constriction (211). The constriction (211) communicates with the inner cavity. The ball head (202) is rotatably embedded in the constriction (211). The other parts of the power-taking part (20) are located outside the constriction (211) of the cylinder (21). The inner cavity of the cylinder (21) also includes a second elastic element (26), one end of which elastically abuts against the ball head (202) and applies a force to the ball head (202) outward from the cylinder (21).

2. The combined display case light as described in claim 1, characterized in that, An insulating bracket (13) is fixedly installed inside the single tube (10). The bracket (13) extends along the length of the single tube (10) and a first strip groove (131) is opened inside the bracket (13). The circuit board (11) is adapted to be installed in the first strip groove (131).

3. The combined display case light as described in claim 2, characterized in that, The interconnect connector (3) is snapped into the end of the bracket (13). The bracket (13) has a snap-in groove (133). The interconnect connector (3) has a snap-in block (301) that matches the snap-in groove (133). The interconnect connector (3) is electrically connected to the circuit board (11) inside the bracket (13) via wires.

4. The combined display case light as described in claim 2, characterized in that, The bracket (13) extends along the length of the single tube (10) and a second strip groove (132) is provided in the bracket (13). The second strip groove (132) is penetrated by the mounting port (101). One end of the power taking part (20) enters the mounting port (101) and protrudes circumferentially to form an ear (204). The ear (204) can rotate with the power taking part (20) into the second strip groove (132), thereby locking the power taking part (20) on the bracket (13).

5. The combined display case light as described in claim 4, characterized in that, Ears (204) are formed on the outer wall of the mounting groove (203) or the mounting base (25).

6. The combined display case light as described in claim 1, characterized in that, The interconnecting connector (3) includes a male plug (31) and a female plug (32). The male plug (31) of a single tube (10) is adapted to connect to the female plug (32) of another single tube (10) adjacent to it. When the male plug (31) is provided at one end of the single tube (10), the male plug (31) has an extension (311) extending outward from the single tube (10). When the female plug (32) is provided at one end of the single tube (10), the female plug (32) is recessed inward from the single tube (10) to form a receiving cavity (321) that matches the extension (311).

7. The combined display case light as described in claim 6, characterized in that, The inner wall of the receiving cavity (321) is fixedly provided with a first elastic member (33) that cooperates with the outer peripheral wall of the extension (311) of the corresponding male plug (31). After the extension (311) is inserted into the receiving cavity (321), the first elastic member (33) is elastically supported between the receiving cavity (321) and the extension (311) of the male plug (31).

8. The combined display case light as described in claim 7, characterized in that, The first elastic element (33) is a drum-shaped spring.

9. The combined display case light as described in claim 1, characterized in that, At least one end of the lamp tube (1) is connected to the upright (4). One end of the upright (4) is provided with a plug (40) that is compatible with the interconnecting connector (3). The other end of the upright (4) is provided with a connecting seat (41) and a power terminal (42). The power terminal (42) is connected to an external power source. The plug (40) and the power terminal (42) are electrically connected.

10. The combined display case light as described in claim 1, characterized in that, The single tube (10) has a variety of shapes, including straight or bent.

Images