CN212346071U - Showcase lighting unit and showcase - Google Patents

Abstract

The utility model provides a showcase lighting unit and contain showcase of this showcase lighting unit. This showcase lighting unit sets up on the showcase for be connected with DC power supply device and throw light on the inside of showcase, include: a showcase lamp having an insert post; and the circuit board assembly is connected with the direct-current power supply device through a connecting wire, wherein the circuit board assembly comprises a circuit board and n power sockets, the circuit board is formed by mutually splicing n circuit monomers which are sequentially arranged in the length direction, the n power sockets are arranged on the n circuit board monomers in a one-to-one correspondence manner, each power socket is provided with a jack portion used for being matched with the corresponding plug posts, and the showcase lamp is installed on the corresponding power socket in a manner that the plug posts are inserted into the jack portions.

Description

Showcase lighting unit and showcase

Technical Field

The utility model belongs to the technical field of the showcase, concretely relates to showcase lighting unit and contain showcase of this showcase lighting unit.

Background

In order to improve the brightness of the articles to be displayed placed in the showcase, a lighting lamp can be arranged in the showcase. In particular jewelry as an article to be displayed, the requirements on light are very high, and the jewelry is required to be illuminated in a targeted way from different directions and directions of the showcase, so that the color of the jewelry is illuminated and shadow and dark surfaces are not generated. For this reason, a plurality of showcase lamps are generally installed at a plurality of different positions on the showcase to perform combined illumination on the articles to be displayed.

However, the existing illumination structure in the showcase has the following problems: (1) the mounting position of each exhibition cabinet lamp is fixed and unchanged, the position cannot be changed as required, and the omnibearing illumination in the exhibition cabinet is difficult to ensure; (2) each power socket for installing the showcase lamp is connected with a power supply device through a connecting wire, so that the wiring is various, and potential safety hazards and large line loss are easily caused.

SUMMERY OF THE UTILITY MODEL

The present invention is made to solve the above technical problems, and an object of the present invention is to provide a showcase lighting unit and a showcase including the same.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

< Structure I >

The utility model provides a showcase lighting unit sets up on the showcase for be connected with DC power supply device and throw light on in order to the inside of showcase, have such characteristic: the method comprises the following steps: a showcase lamp having an insert post; and the circuit board assembly is connected with the direct-current power supply device through a connecting wire, wherein the circuit board assembly comprises a circuit board and n power sockets, the circuit board is formed by mutually splicing n circuit monomers which are sequentially arranged in the length direction, the n power sockets are arranged on the n circuit board monomers in a one-to-one correspondence manner, each power socket is provided with a jack portion used for being matched with the corresponding plug posts, the showcase lamp is installed on the corresponding power socket in a manner that the plug posts are inserted into the jack portions, and n is a positive integer greater than 1.

The utility model provides an in the showcase lighting unit, can also have such characteristic: wherein, the circuit board assembly also comprises a mounting component used for mounting the circuit board on the display cabinet.

The utility model provides an in the showcase lighting unit, can also have such characteristic: the mounting component is L-shaped and is provided with a mounting plate and a fixing plate connected with one side end of the mounting plate, two side ends of one side surface of the mounting plate are respectively provided with a mounting lug boss extending along the length direction, the circuit board units are mounted on the two mounting lug bosses, the fixing plate is used for being fixed on the display cabinet and is provided with n through holes which are arranged at intervals along the length direction and respectively correspond to the n power sockets as fixing plate through holes, and the inserting hole parts are mounted in the corresponding fixing plate through holes.

The utility model provides an in the showcase lighting unit, can also have such characteristic: the mounting lug boss close to the fixing plate is formed by bending the side end part of the mounting plate corresponding to the fixing plate towards the circuit board firstly and then towards the fixing plate.

The utility model provides an in the showcase lighting unit, can also have such characteristic: wherein, keep away from the installation bellying of fixed plate and constitute by parallel arrangement and two protruding muscle that extend along length direction respectively, be equipped with on the circuit board monomer with two corresponding through-holes of protruding muscle as the circuit board through-hole, the circuit board monomer passes the circuit board through-hole and stretches into the mode in the space between two protruding muscle and install on the mounting panel through fastening member, interval and fastening member's size phase-match between two protruding muscle.

The utility model provides an in the showcase lighting unit, can also have such characteristic: the other side end of the mounting plate, which is far away from the fixing plate, is also provided with a barrier strip, and the barrier strip extends along the length direction and is matched with the thickness of the circuit board.

The utility model provides an in the showcase lighting unit, can also have such characteristic: wherein, the mounting plate, the mounting lug boss, the fixing plate and the barrier strip are integrally formed.

The utility model provides an in the showcase lighting unit, can also have such characteristic: the showcase lamp is provided with a lamp holder and a lamp body which is rotatably installed on the lamp holder, the lamp holder is provided with an inserting column, the lamp body comprises a light-emitting diode, and the light-emitting diode is connected with the inserting column through a connecting wire.

The utility model provides an in the showcase lighting unit, can also have such characteristic: the two adjacent circuit board monomers are connected in series, and the power socket and the corresponding circuit monomer are connected in parallel.

< Structure two >

The utility model also provides a showcase has such characteristic: the method comprises the following steps: the lighting unit is used for lighting the inside of the showcase; and the direct current power supply device is used for supplying direct current to the lighting units, wherein the lighting units are the showcase lighting units with the structure I, and the output voltage of the direct current power supply device is 5-8V.

Action and effect of the utility model

According to the showcase lighting unit and the showcase comprising the showcase lighting unit of the present invention, since the circuit board assembly comprises the circuit board and n power sockets, the circuit board is formed by mutually splicing n circuit monomers which are sequentially arranged in the length direction, the n power sockets are correspondingly arranged on the n circuit board monomers one by one, the power sockets have jack portions for being matched with the jack posts, and the showcase lamp is installed on the corresponding power sockets in a manner that the jack posts are inserted into the jack portions, therefore, the showcase lighting unit of the present invention, on one hand, can conveniently insert showcase lamps on different jack portions to realize all-round lighting of the inside of the showcase, not only ensures the uniformity of the light source received by the article to be displayed, but also avoids the generation of shadow and dark surface, and is also beneficial to selecting proper position, proper color and proper lighting intensity for the exhibit, the value of the exhibit is presented to the maximum, the diseases of no key point, no direction, no difference and no color tone of a fixed light source are overcome, and the application range of the showcase is widened; on the other hand, the circuit board is adopted to replace connecting wires to supply power for a plurality of power sockets, and wiring and line loss are greatly reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of a display case according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a cabinet body in an embodiment of the present invention;

fig. 3 is a schematic view of an inner side structure of a right side wall plate according to an embodiment of the present invention;

fig. 4 is a schematic view of an outer side structure of a right side wall plate according to an embodiment of the present invention;

fig. 5 is a schematic view of an outer side structure of a panel main body according to an embodiment of the present invention;

fig. 6 is an exploded view of a circuit board assembly for a wall panel according to an embodiment of the present invention;

FIG. 7 is an enlarged view of portion A of FIG. 6;

fig. 8 is an enlarged view of portion B of fig. 6;

fig. 9 is a schematic perspective view of a display case lamp for a wall panel according to an embodiment of the present invention;

fig. 10 is a schematic bottom view of the resting plate according to the embodiment of the present invention; and

fig. 11 is an exploded installation schematic view of a support member and a shelf board lighting unit in an embodiment of the present invention.

Detailed Description

The concept, specific structure and technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the showcase lighting unit and the showcase including the showcase lighting unit of the present invention.

< example >

Fig. 1 is a schematic view of the overall structure of the display cabinet in the embodiment of the present invention.

As shown in fig. 1, in the first embodiment, the showcase 1000 includes a cabinet body 100, a cabinet door 200, and a dc power supply device (not shown).

The cabinet 100 is a rectangular parallelepiped, and has an opening at a front side thereof for placing the article to be displayed in the cabinet 100 and taking out the article to be displayed from the cabinet 100.

The cabinet door 200 is rotatably provided at an opening at a front side of the cabinet 100 to close or open the opening of the cabinet 100. The cabinet door 200 comprises a door frame 201 and a door panel 202 fixedly arranged on the door frame 201, wherein the door frame 201 is a frame body formed by welding metal profiles; the door panel 202 is a plate made of a see-through material, so that a visitor can directly see the article to be displayed placed in the cabinet 100 through the door panel 202 without opening the cabinet door 200. In the present embodiment, door panel 202 is a transparent glass panel.

The dc power supply device is disposed at the bottom of the cabinet 100 and is used for supplying dc power with a required rated voltage to the display 1000. In this embodiment, the dc power supply device is a reference dc voltage source, the reference dc voltage source is a dc safe low-temperature power source with an external ac voltage of 100-240 v, and the output voltage is 5-8 v.

Fig. 2 is a schematic view of the internal structure of the cabinet body in the embodiment of the present invention.

As shown in fig. 1 and 2, the cabinet 100 includes a bottom wall panel 10a, a top wall panel 10b, a left side wall panel 10c, a right side wall panel 10d, a rear wall panel 10e, an outer case 10f, and a resting panel 20.

The bottom wall panel 10a, the top wall panel 10b, the left side wall panel 10c, the right side wall panel 10d, and the rear wall panel 10e are mutually spliced to form an internal structure of the cabinet 100, and the outer case 10f is disposed outside the top wall panel 10b, the left side wall panel 10c, the right side wall panel 10d, and the rear wall panel 10e to form an external structure of the cabinet 100. Wherein the bottom wall plate 10a and the rear wall plate 10e are both rectangular metal plates; the top wall panel 10b, the left side wall panel 10c, and the right side wall panel 10d are all wall panels having an illumination function.

Since the top wall panel 10b, the left wall panel 10c, and the right wall panel 10d have the same structure, the structure of the wall panel having the illumination function will be described in detail below by taking the right wall panel 10d as an example.

Fig. 3 is a schematic view of an inner side structure of a right side wall plate according to an embodiment of the present invention; fig. 4 is an outer side structural schematic view of the right side wall plate in the embodiment of the present invention.

As shown in fig. 1 to 4, the right side wall panel 10d includes a panel main body 11 and a panel lighting unit 12.

Fig. 5 is an outer side structure diagram of the panel main body according to the embodiment of the present invention.

As shown in fig. 3 to 5, the panel body 11 is a rectangular metal plate, and is provided with m openings 11a and m mounting grooves 111 formed in the m openings 11a, where m is a positive integer greater than 1. In this embodiment, m is 3 or 4; of course, m can also be a positive integer greater than 2 or greater than 4 according to actual needs.

The m openings 11a are arranged at intervals in the width direction of the panel body 11 (i.e., the left-right direction shown in fig. 3), and each extend in the longitudinal direction (i.e., the up-down direction shown in fig. 3) perpendicular to the width direction.

The mounting groove 111 is located at the outside of the panel main body 11, and has a receiving cavity therein matching the shape of the showcase lamp 121 in the panel lighting unit 12. The mounting groove 111 is constituted by two side plates 111a in the longitudinal direction, a middle plate 111b located between the two side plates 111a, and two end plates 111c in the width direction.

The inner end of the side plate 111a is connected to the edge of the opening 11a in the longitudinal direction, and the angle between the side plate 111a and the panel main body 111 is represented by θ, 90 ° ≦ θ ≦ 120 °. In this embodiment, the angle between the side wall 111a facing the front side of the showcase and the wall plate main body 111 is 90 °, and the angle between the side wall 111a facing the rear side of the showcase and the wall plate main body 111 is 120 °.

Both side ends of the middle plate 111b are connected to the outer ends of the two side plates 111a, respectively, and the middle plate 111b and the panel main body 11 are arranged in parallel. The middle plate 111b is provided with n through holes arranged at intervals in the length direction as mounting groove through holes 111d, n being a positive integer greater than 1.

The inner end of the end plate 111c is connected to the edge of the opening in the width direction and is provided perpendicular to the panel main body 111. The left, right, and outer ends of the end plate 111c are connected to the two side plates 111a and the middle plate 111b, respectively.

In the present embodiment, the two side plates 111a, the middle plate 111b and the end plate 111c are integrally formed.

The wall plate body 11 has a plurality of notches 112 at both ends in the width direction, and the plurality of notches 112 at the same end are arranged at intervals in the longitudinal direction of the wall plate body 11.

As shown in fig. 3 and 4, the wall panel lighting unit 12 includes m wall panel wiring board assemblies 121 and at least one wall panel showcase lamp 122.

Fig. 6 is an exploded view of a circuit board assembly for a wall panel according to an embodiment of the present invention; fig. 7 is an enlarged view of a portion a in fig. 6.

As shown in fig. 4, 6, and 7, the m wall plate wiring board assemblies 121 are disposed on the outer side surfaces of the intermediate plates 111b of the m mounting grooves 111 in a one-to-one correspondence. Each wall board assembly 121 includes a circuit board 121a, a mounting member 121b, and n power outlets 121 c.

As shown in fig. 6 and 7, the wiring board 121a is formed by splicing n wiring board single bodies 121d arranged in sequence in the longitudinal direction. The left end of the circuit board unit 121d is provided with a through hole (not shown) as a circuit board through hole. In this embodiment, two adjacent circuit board units 121d are electrically connected in series, and the circuit board unit 121d at one end of the circuit board 121a is connected to the dc power supply device through a connecting wire.

Fig. 8 is an enlarged view of a portion B in fig. 6.

As shown in fig. 6 and 8, the mounting member 121b has an L-shape, and includes a mounting plate 121e and a fixing plate 121f connected to one side end of the mounting plate 121 e.

The left and right side end portions of one side surface of the mounting plate 121e are respectively provided with mounting bosses 121g, 121h extending in the longitudinal direction for mounting the wiring board 121 a.

The mounting protrusion 121g close to the fixing plate 121f is formed by bending the right end of the mounting plate 121e first in the direction of the circuit board 121a and then in the direction of the fixing plate 121 f; the mounting protrusion 121h away from the fixing plate 121f is formed by two ribs 121i that are arranged in parallel and extend in the length direction, and the two ribs 121i correspond to the circuit board through holes on the circuit board single body 121 d. One side surface of the circuit board single body 121d is attached to the two mounting bosses 121g and 121h, and is mounted on the mounting plate 121e in such a manner that a fastening member (not shown) passes through the circuit board through hole and extends into a gap between the two ribs 121g and 121 h. In this embodiment, the fastening member is a screw having a size matched to the interval between the two ribs 121 i.

The fixing plate 121f has a shape matching the middle plate 111b of the mounting groove 111, and is fixedly disposed on the middle plate 111 b. The fixing plate 121f is provided with n through holes as fixing plate through holes 121j, which are arranged at intervals in the length direction and correspond to the n receiving groove through holes 111d, respectively.

In this embodiment, the other side end portion of the mounting plate 121e away from the fixing plate 121f (i.e., the left side end portion as viewed in fig. 8) is further provided with a bar 121k, and the bar 121k extends in the length direction and matches the thickness of the circuit board 121 a. The mounting plate 121e, the fixing plate 121f, the barrier 121k, and the two mounting protrusions 121g and 121h are integrally formed.

As shown in fig. 6 to 8, n power sockets 121c are provided on the right-side ends of the n circuit board single bodies 121d in a one-to-one correspondence, and correspond to the n fixing plate through holes 121j, respectively. The power socket 121c has a socket part 121j, and the socket part 121j passes through the corresponding fixing plate through hole 121j and protrudes into the corresponding mounting groove through hole 111 d. In this embodiment, the power socket 121c and the corresponding circuit board unit 121d are electrically connected in parallel.

Fig. 9 is a schematic perspective view of a showcase lamp for a wall plate according to an embodiment of the present invention.

As shown in fig. 3 and 9, the wall panel showcase lamp 122 has a lamp socket 122a and a lamp body 122 b.

The lamp socket 122a has one end provided with a plug post 122c to be fitted into the plug hole portion 121j of the power socket 121c, and the other end provided with a through groove 122d extending in the radial direction of the lamp socket 122 a. The socket 122a is attached to the power outlet 121c by inserting the insertion post 122c into the insertion hole 121 j.

The lamp body 122b contains a light emitting diode (not shown), one end of the lamp body 122b is provided with a rotating shaft 122e, and the lamp body 12 is rotatably mounted on the lamp holder 122a through the rotating shaft 122e in the through groove 122 d. In the present embodiment, the light emitting diode is electrically connected to the plug 122c through a connection line, and further electrically connected to the corresponding circuit board unit 121 d.

Fig. 10 is a bottom view of the shelf board according to the embodiment of the present invention.

As shown in fig. 1, 2 and 10, the shelf board 20 is a shelf board having an illumination function, is disposed in the cabinet 100, and is used for placing an article to be displayed and is connected with a voltage supply device to illuminate the inside of the cabinet 100. The shelf board 20 includes a shelf board main body 21, a support unit 22, and two shelf board illumination units 23.

As shown in fig. 1 and 10, the shelf plate main body 21 is a rectangular plate having two shelf plate ends (not shown in the drawings) in the front-rear direction of the cabinet 100. In the present embodiment, the resting plate body 21 is a transparent glass plate.

Fig. 11 is an exploded installation schematic view of a support member and a shelf board lighting unit in an embodiment of the present invention.

As shown in fig. 1, 2, 10, and 11, the support unit 22 includes two support members 221, and the two support members 221 are respectively provided at the bottoms of the two resting plate ends of the resting plate main body 21. The supporting member 221 is a hollow structure with a rectangular or square cross section, and is formed by splicing a first profile 221a and a second profile 221b which are arranged up and down.

The cross section of the second section bar 221b is in an inverted 'Contraband' shape, and n through holes arranged at intervals along the length direction are respectively arranged on the opposite side walls of the two second section bars 221b as the supporting member through holes 221 c. The first profile 221 is disposed at a longitudinal opening of the second profile 221b to close the longitudinal opening.

The second profile 221b is provided at both ends thereof with hanging members 221d respectively matching the catching grooves 112 of the panel body 11, and the supporting member 221 is mounted on the left and right side wall plates 10c and 10d in such a manner that the hanging members 221d at both ends of the second profile 221b are respectively fitted into the catching grooves 112 of the left and right side wall plates 10c and 10 d.

As shown in fig. 2, 10, and 11, two shelf lighting units 23 are provided on two support members 221, respectively, and each shelf lighting unit 23 includes a shelf board wiring board assembly 231 and at least one shelf board showcase lamp 232.

The shelf board assembly 231 is provided in the corresponding support member 221, and has the same structure as the wall board assembly 121. The board-mounted board assembly 231 includes a board 231a, a mounting member 231b, and n power sockets (not shown).

The single circuit board at one end of the circuit board 231a is connected to a dc power supply. In this embodiment, the left side wall plate 10c is provided with a socket, and the socket is electrically connected with the direct current power supply device through a connecting wire; the single circuit board at one end of the circuit board 231a is connected with a plug through a connecting wire, and the plug is inserted into a socket on the left side wall 10c, so that the conductive connection between the circuit board 231a and the direct current power supply device is realized.

The fixing plates in the mounting member 231b are fixedly provided on the side walls of the second profiles 221b in the supporting member 221.

The insertion hole portions in the power socket pass through the corresponding fixing plate through-holes and protrude into the corresponding support member through-holes 221 c.

The shelf board showcase lamp 232 has the same structure as the wall board showcase lamp 122 in the wall board illumination unit 12, and the shelf board showcase lamp 232 is mounted on the power supply socket of the shelf board circuit board assembly 231 in such a manner that the insertion post thereof is inserted into the insertion hole portion in the corresponding power supply socket.

Effects and effects of the embodiments

According to the showcase illumination unit and the showcase comprising the showcase illumination unit, the circuit board assembly comprises the circuit board and n power sockets, the circuit board is formed by mutually splicing n circuit monomers which are sequentially arranged in the length direction, the n power sockets are correspondingly arranged on the n circuit board monomers one by one, each power socket is provided with a jack portion matched with the corresponding jack post, and the showcase lamp is installed on the corresponding power socket in a manner that the jack post is inserted into the jack portion, so that the showcase illumination unit of the embodiment can conveniently insert the showcase lamps on different jack portions on one hand, and realizes all-round illumination of the inside of the showcase, thereby ensuring the uniformity of a light receiving source of an article to be displayed, avoiding the generation of shadow and a dark surface, and being beneficial to selecting a proper position, a proper light color and a proper illumination intensity for the showcase, the value of the exhibit is presented to the maximum, the diseases of no key point, no direction, no difference and no color tone of a fixed light source are overcome, and the application range of the showcase is widened; on the other hand, the circuit board is adopted to replace connecting wires to supply power for a plurality of power sockets, and wiring and line loss are greatly reduced.

In addition, because the circuit board is formed by the mutual concatenation of n circuit board monomers of arranging in proper order along length direction, n supply socket one-to-one sets up on n circuit board monomers, can adjust circuit board monomer and supply socket's quantity according to the actual need of showcase illumination, improves the practicality of circuit board.

In addition, because the mounting member is L-shaped and comprises a mounting plate and a fixing plate connected with one side end of the mounting plate, two side ends of one side surface of the mounting plate are respectively provided with a mounting lug boss extending along the length direction, the circuit board single body is mounted on the two mounting lug bosses, the fixing plate is provided with n through holes which are arranged at intervals along the length direction and respectively correspond to the n mounting groove through holes as fixing plate through holes, the jack parts penetrate through the corresponding fixing plate through holes and extend into the corresponding mounting groove through holes,

in addition, because the other side end of the mounting plate, which is far away from the fixing plate, is also provided with a barrier strip, the barrier strip extends along the length direction and is matched with the thickness of the circuit board, the circuit board monomer can be limited, the mounting operation of the circuit board monomer is facilitated, and the stability of the circuit board monomer is further improved.

In addition, because exhibition cabinet lamp has the lamp stand and rotationally installs the lamp body on this lamp stand, can conveniently adjust the direction of lamp body, further improve illuminating effect.

In addition, because the output voltage of the direct-current power supply device is 5-8V, the direct-current power supply device is safe and reliable, energy and power are saved, low-temperature exhibits can be protected, and even if the direct-current power supply device is fully turned on for a long time, the temperature inside the showcase cannot be greatly changed.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims (10)

1. A showcase illumination unit, disposed on the showcase, for connecting with a DC power supply device to illuminate an inside of the showcase, comprising:

a showcase lamp having an insert post; and

a circuit board assembly connected with the DC power supply device through a connecting wire,

wherein the circuit board assembly comprises a circuit board and n power sockets,

the circuit board is formed by splicing n circuit monomers which are sequentially arranged in the length direction,

the n power sockets are correspondingly arranged on the n circuit board single bodies one by one,

the power socket is provided with a jack part matched with the plug post,

the exhibition cabinet lamp is arranged on the corresponding power socket in a way that the inserting column is inserted in the inserting hole part,

and n is a positive integer greater than 1.

2. The showcase lighting unit of claim 1, wherein:

wherein the circuit board assembly further comprises a mounting member for mounting the circuit board to the showcase.

3. The showcase lighting unit of claim 2, wherein:

wherein the mounting member is L-shaped, and comprises a mounting plate and a fixing plate connected with one side end of the mounting plate,

two side end parts of one side surface of the mounting plate are respectively provided with a mounting lug boss extending along the length direction,

the circuit board single body is arranged on the two mounting convex parts,

the fixing plate is used for being fixed on the exhibition cabinet, n through holes which are arranged at intervals along the length direction and respectively correspond to the n power sockets are arranged as the through holes of the fixing plate,

the inserting hole part is arranged in the corresponding through hole of the fixing plate.

4. The showcase lighting unit of claim 3, wherein:

the mounting boss close to the fixing plate is formed by bending the side end part of the mounting plate corresponding to the fixing plate towards the direction of the circuit board and then towards the direction of the fixing plate.

5. The showcase lighting unit of claim 3, wherein:

wherein the mounting lug boss far away from the fixing plate is composed of two convex ribs which are arranged in parallel and respectively extend along the length direction,

the circuit board single body is provided with through holes corresponding to the two convex ribs as circuit board through holes,

the circuit board single body is arranged on the mounting plate in a mode that a fastening component penetrates through the circuit board through hole and extends into a gap between the two convex ribs,

the space between the two convex ribs is matched with the size of the fastening component.

6. The showcase lighting unit of claim 3, wherein:

and the other side end of the mounting plate, which is far away from the fixing plate, is also provided with a barrier strip, and the barrier strip extends along the length direction and is matched with the thickness of the circuit board.

7. The showcase lighting unit of claim 6, wherein:

wherein, the mounting panel the installation bellying, the fixed plate and the blend stop is for integrated into one piece makes.

8. The showcase lighting unit of claim 1, wherein:

wherein, the exhibition cabinet lamp is provided with a lamp holder and a lamp body which can be rotatably arranged on the lamp holder,

the lamp holder is provided with the insertion column,

the lamp body contains a light-emitting diode, and the light-emitting diode is connected with the inserting column through a connecting wire.

9. The showcase lighting unit of claim 1, wherein:

wherein, two adjacent circuit board monomers are connected in series,

the power socket and the corresponding circuit monomer are connected in parallel.

10. A display case, comprising:

the lighting unit is used for lighting the inside of the showcase; and

a DC power supply device for supplying DC power to the illumination unit,

wherein the lighting unit is the showcase lighting unit of any one of claims 1 to 9,

the output voltage of the direct current power supply device is 5-8 volts.

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