Power supply assembly

Abstract

The utility model relates to the technical field of power supplies of electronic equipment, in particular to a power supply assembly, which comprises a connecting piece, a rotary clamping piece and a fixing piece, the connecting piece is used for electrically connecting a power supply guide rail and an electronic tag, the rotary clamping piece is rotatably arranged in the connecting piece, and the rotary clamping piece is clamped with the power supply guide rail. The fixing piece is arranged in an electronic tag needing to be connected, and a U-shaped groove is formed in the lower end of the connecting piece in an inward concave mode. The fixing piece is in a U shape, and the fixing piece is arranged in the U-shaped groove in an inserted mode. The device is simple in structure, few in required parts, simple in disassembly and assembly operation and convenient for field installation operation, the connecting piece and the power supply guide rail are fixed only by adopting the rotary clamping piece during assembly, the connecting piece and the electronic price tag are fixed by adopting the fixing piece, the requirement on the size precision of the shell of the electronic price tag is low, and the yield can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment power supplies, in particular to a power supply component. Background Art

[0002] Common electronic devices including electronic screens, electronic signs, electronic labels, etc. all need to be equipped with power components to connect and power them. Taking electronic price tags as an example, existing electronic price tag power components generally include two forms, one is a hanging power component, and the other is an integrated power component. Taking the hanging power component as an example, its external dimensions are large, not easy to hide, and there are many internal parts, so the assembly is more complicated; while the integrated power component has higher requirements for the dimensional accuracy of the electronic price tag part. When the outer frame of the electronic price tag is a wooden frame, it is affected by the processing accuracy of the wooden frame, and the product quality control is poor. Occasionally, there will be problems such as the buckle loosening and the product will be slightly tilted after installation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a power supply component which has simple components, quick installation and low requirements on the size accuracy of electronic equipment during assembly.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a power supply component, including a connecting piece, a rotary clamp and a fixing piece, the connecting piece is used to electrically connect the power rail and the electronic tag, the connecting piece is rotatably provided with a rotary clamp, the rotary clamp is engaged with the power rail, the fixing piece is arranged in the electronic tag to be connected, and the lower end of the connecting piece is concave with a U-shaped groove; the fixing piece is U-shaped, and the fixing piece is inserted into the U-shaped groove.

[0005] Furthermore, the connecting part includes a shell, the shell is arranged in the power rail, and openings are provided on both sides of the shell; the rotating clamp includes a clamping joint, the clamping joint is rotatably arranged in the shell, and clamping protrusions for clamping with the power rail are provided on both sides of the clamping joint; one side edge of the opening is located on the rotation path of the clamping protrusion and abuts against the clamping protrusion, and the other side edge is away from the rotation path of the clamping protrusion.

[0006] Furthermore, the connecting member also includes a limiting member, the limiting member is arranged on the shell, the clamping joint is provided with a plurality of limiting grooves in its circumferential direction, and the limiting member is clamped with the limiting grooves.

[0007] Furthermore, the limiting member comprises a limiting hook and an elastic connecting arm, the elastic connecting arm is connected to the shell, and a limiting hook cooperating with the limiting groove is provided on one end of the elastic connecting arm away from the shell.

[0008] Furthermore, the rotary clamp also includes a rotating sleeve, the clamping joint is provided with a rotating sleeve in a direction away from the housing, and the rotating sleeve is provided with anti-slip patterns.

[0009] Further, the anti-slip pattern includes a first pattern and a second pattern, the first pattern includes a plurality of first convex strips arranged at intervals along the circumference of the rotating sleeve, the cross-section of the first convex strip includes a first arc and a second arc, the first arc is connected to the second arc in the counterclockwise rotation direction of the rotating sleeve, the first arc is bent away from the center of the rotating sleeve, and the second arc is bent toward the center of the rotating sleeve; the second pattern includes a plurality of second convex strips arranged at intervals along the circumference of the rotating sleeve, the cross-section of the second convex strip includes a third arc and a fourth arc, the third arc is connected to the fourth arc in the clockwise rotation direction of the rotating sleeve, the third arc is bent away from the center of the rotating sleeve, and the fourth arc is bent toward the center of the rotating sleeve.

[0010] Furthermore, a limiting boss is provided in the shell, and the limiting boss is arranged on the rotation path of the clamping convex edge and abuts against the clamping convex edge.

[0011] Furthermore, the connecting piece also includes a connecting wire harness, a fixing plate, a PCB board and a power spring, one end of the connecting wire harness is connected to the electronic price tag, and the other end is fixed to the fixing plate and connected to the PCB board; an abutment boss is provided in the shell, and the abutment boss is provided with a first step structure and a second step structure continuously arranged from top to bottom, the PCB board abuts on the first step structure, the fixing plate abuts on the second step structure, and the power spring is arranged on the PCB board.

[0012] Furthermore, two power springs are arranged side by side, and the power springs include at least two elastic protrusions, the elastic protrusions protrude from the upper end surface of the shell, and the elastic protrusions are provided with connection contacts, which abut against the power rail.

[0013] Furthermore, the PCB board is provided with a plurality of fixing grooves, and the power spring sheet is provided with claws extending toward the fixing grooves to be engaged therewith.

[0014] The beneficial effect of the utility model is that power is supplied to the electronic price tag by connecting the connector with the power rail and the electronic price tag. The connector is fast fixed to the power rail by rotating the connector with a rotating clamp. The connector and the electronic price tag are fast fixed by plugging the U-shaped groove on the connector with the U-shaped fixing part on the electronic price tag. The device has a simple structure, requires few parts, is easy to disassemble and assemble, and is convenient for on-site installation. Its assembly only requires the connector and the power rail to be fixed by a rotating clamp, and the connector and the electronic price tag to be fixed by a fixing part. The shell size accuracy of the electronic price tag is relatively low, which can effectively improve the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a specific implementation mode of the utility model when the power supply assembly cooperates with the power supply rail and the electronic price tag;

[0016] Figure 2 It is a schematic diagram of the structure of a power supply assembly according to a specific embodiment of the utility model;

[0017] Figure 3 It is a side view of a power supply assembly and a power supply rail according to a specific embodiment of the utility model when they are matched;

[0018] Figure 4 An exploded view of a power supply assembly according to a specific embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the power supply assembly of the specific embodiment of the utility model after removing the upper end surface of the shell;

[0020] Figure 6 This is an exploded view of a power supply assembly according to a specific embodiment of the utility model after removing the upper end surface of the shell;

[0021] Figure 7 It is a schematic diagram of the structure inside the housing of a power supply assembly according to a specific embodiment of the utility model;

[0022] Figure 8 It is a schematic diagram of the structure of the housing of the power supply assembly and the card connector in the first state according to a specific embodiment of the utility model;

[0023] Fig. 9 It is a schematic diagram of the structure of the housing of the power supply assembly and the card connector in the second state according to a specific embodiment of the utility model;

[0024] Fig.10 It is a cross-sectional view of a rotating sleeve of a power supply assembly according to a specific embodiment of the utility model.

[0025] Description of labels:

[0026] 1. Connector; 11. U-shaped groove; 12. Shell; 121. Opening; 122. Abutment boss; 1221. First step structure; 1222. Second step structure; 13. Limiting hook; 14. Elastic connecting arm; 15. Connecting wire harness; 16. Fixing plate; 17. PCB board; 171. Fixing groove; 18. Power supply spring; 181. Elastic protrusion; 182. Connecting contact; 183. Claw;

[0027] 2. Rotary clamp; 21. Clamp joint; 211. Clamping convex edge; 2111. Guide bevel; 212. Position limiting groove; 22. Rotating sleeve; 221. First convex strip; 2211. First arc line; 2212. Second arc line; 222. Second convex strip; 2221. Third arc line; 2222. Fourth arc line;

[0028] 3. Fixing parts;

[0029] 4. Power rail; 5. Electronic price tag. DETAILED DESCRIPTION

[0030] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0031] Please refer to Figures 1 to 10 A power supply component includes a connecting member 1, a rotary clamp 2 and a fixing member 3. The connecting member 1 is used to electrically connect a power rail 4 and an electronic tag. The connecting member 1 is rotatably provided with a rotary clamp 2, and the rotary clamp 2 is engaged with the power rail 4. The fixing member 3 is arranged in the electronic tag to be connected. A U-shaped groove 11 is concave at the lower end of the connecting member 1; the fixing member 3 is U-shaped and is inserted into the U-shaped groove 11.

[0032] From the above description, it can be seen that the beneficial effect of the utility model is that power is supplied to the electronic price tag 5 by connecting the connector 1 with the power rail 4 and the electronic price tag 5. The connector 1 is matched with the rotary clamp 2 to quickly clamp and fix with the power rail 4 in the form of rotation clamping. The fixing of the connector 1 and the electronic price tag 5 is achieved by plugging and matching the U-shaped groove 11 set on the connector 1 with the U-shaped fixing member 3 on the electronic price tag 5. The device has a simple structure, requires few parts, is easy to disassemble and assemble, and is convenient for on-site installation. Its assembly only requires the use of the rotary clamp 2 to fix the connector 1 and the power rail 4, and the fixing member 3 to fix the connector 1 and the electronic price tag 5. The shell size accuracy requirements of the electronic price tag 5 are relatively low, which can effectively improve the yield rate.

[0033] Furthermore, the connecting member 1 includes a shell 12, the shell 12 is arranged in the power rail 4, and openings 121 are provided on both sides of the shell 12; the rotating clamp 2 includes a clamping joint 21, the clamping joint 21 is rotatably arranged in the shell 12, and clamping protrusions 211 for clamping with the power rail 4 are provided on both sides of the clamping joint 21; one side edge of the opening 121 is located on the rotation path of the clamping protrusion 211 and is against the clamping protrusion 211, and the other side edge is away from the rotation path of the clamping protrusion 211.

[0034] It can be known from the above description that, through the rotational cooperation between the opening 121 of the shell 12 and the snap connector 21 and its snap connector protrusion 211, the snap connector protrusion 211 can protrude from the opening 121 of the shell 12 and be snapped onto the power rail 4; specifically, through the design that one side edge of the opening 121 is located on the rotation path of the snap connector protrusion 211, and the other side edge of the opening 121 is away from the rotation path of the snap connector protrusion 211, when the snap connector 21 rotates toward one side edge, its snap connector protrusion 211 can smoothly rotate out of the opening 121 of the shell 12 and finally resist the limit on one side edge of the opening 121, and the snap connector protrusion 211 protruding from the opening 121 of the shell 12 can be snapped onto the power rail 4, thereby fixing the connector 1 to the power rail 4. The design of the opening 121 also limits the rotation direction of the clamping joint 21, that is, only one-side rotation can realize the clamping connection between the connector 1 and the power rail 4, while the opposite side rotation makes the clamping protrusion 211 return to the inside of the shell 12, releasing the clamping connection between the connector 1 and the power rail 4.

[0035] Furthermore, the connector 1 further comprises a limiting member, which is arranged on the housing 12 . The clamping joint 21 is provided with a plurality of limiting grooves 212 in its circumferential direction, and the limiting member is clamped with the limiting grooves 212 .

[0036] It can be seen from the above description that, through the design of the limit member, the card connector 21 can be fixed in the current state after rotation through the cooperation between the limit groove 212 and the limit member; specifically, the card connector 21 includes a first state in which its card connection protrusion 211 protrudes from the opening 121 of the shell 12 and is engaged with the power rail 4, and a second state in which the card connection protrusion 211 is located in the shell 12. Corresponding to the rotation angles of these two states, two limit grooves 212 are respectively arranged on the circumference of the card connector 21, so that the limit member can limit and fix the above two states.

[0037] Furthermore, the limiting member includes a limiting hook 13 and an elastic connecting arm 14 , the elastic connecting arm 14 is connected to the shell 12 , and the limiting hook 13 cooperating with the limiting groove 212 is provided on one end of the elastic connecting arm 14 away from the shell 12 .

[0038] From the above description, it can be seen that through the cooperation between the limit hook 13 and the limit groove 212, and through the setting of the elastic connecting arm 14, when the clamping joint 21 is rotated until the limit hook 13 is clamped into the next limit groove 212, the elastic potential energy accumulated by the elastic connecting arm 14 can make the limit hook 13 quickly hit the limit groove 212, and then make a sound, so that the operator can quickly confirm that the clamping is in place.

[0039] Furthermore, the rotary clamp 2 further comprises a rotating sleeve 22 . The clamp joint 21 is provided with the rotating sleeve 22 in a direction away from the housing 12 . The rotating sleeve 22 is provided with anti-slip patterns.

[0040] From the above description, it can be seen that the rotating sleeve 22 serves as the operating end of the rotary clamp 2 and is used by the operator to rotate it to control the clamping joint 21 and the clamping protrusion 211 to be clamped with the power rail 4. It improves the anti-slip performance by providing anti-slip textures to facilitate the operator to rotate it.

[0041] Further, the anti-slip pattern includes a first pattern and a second pattern, the first pattern includes a plurality of first ridges 221 arranged at intervals along the circumference of the rotating sleeve 22, the cross-section of the first ridge 221 includes a first arc 2211 and a second arc 2212, the first arc 2211 is connected to the second arc 2212 in the counterclockwise rotation direction of the rotating sleeve 22, the first arc 2211 is bent away from the center of the rotating sleeve 22, and the second arc 2212 is bent toward the center of the rotating sleeve 22; the second pattern includes a plurality of second ridges 222 arranged at intervals along the circumference of the rotating sleeve 22, the cross-section of the second ridge 222 includes a third arc 2221 and a fourth arc 2222, the third arc 2221 is connected to the fourth arc 2222 in the clockwise rotation direction of the rotating sleeve 22, the third arc 2221 is bent away from the center of the rotating sleeve 22, and the fourth arc 2222 is bent toward the center of the rotating sleeve 22.

[0042] From the above description, it can be seen that through the design of the first texture and the second texture, the cooperation of the first arc 2211 and the second arc 2212 of the cross-section of the first convex line 221 of the first texture can increase the force of the rotating sleeve 22 during clockwise rotation, which is convenient for users to rotate clockwise; the cooperation of the third arc 2221 and the fourth arc 2222 of the cross-section of the second convex line 222 of the second texture can increase the force of the rotating sleeve 22 during counterclockwise rotation, which is convenient for users to rotate counterclockwise.

[0043] Furthermore, a limiting boss is disposed in the housing 12 , and the limiting boss is disposed on the rotation path of the clamping protrusion 211 and abuts against the clamping protrusion 211 .

[0044] It can be known from the above description that the limiting boss provided inside the shell 12 can be used to limit and fix the engaging protrusion 211 when it rotates into the inside of the shell 12 .

[0045] Furthermore, the connector 1 also includes a connecting harness 15, a fixing plate 16, a PCB board 17 and a power spring 18, one end of the connecting harness 15 is connected to the electronic price tag 5, and the other end is fixed on the fixing plate 16 and connected to the PCB board 17; an abutment boss 122 is provided in the shell 12, and the abutment boss 122 is provided with a first step structure 1221 and a second step structure 1222 continuously arranged from top to bottom, the PCB board 17 abuts on the first step structure 1221, the fixing plate 16 abuts on the second step structure 1222, and the power spring 18 is arranged on the PCB board 17.

[0046] It can be seen from the above description that the electrical connection between the power rail 4 and the electronic price tag 5 is achieved by setting the connecting harness 15, the PCB board 17 and the power spring 18; wherein a fixing plate 16 is set at one end of the connecting harness 15 to prevent the connecting harness 15 from falling off directly when the connecting harness 15 is pulled, and the fixing plate 16 plays a role of strengthening the fixation; the first step structure 1221 and the second step structure 1222 are set in sequence as the abutment structure of the PCB board 17 and the fixing plate 16, so that they can be fixed in the shell 12.

[0047] Furthermore, two power springs 18 are arranged side by side, and the power springs 18 include at least two elastic protrusions 181 , which protrude from the upper end surface of the shell 12 , and are provided with connection contacts 182 , which abut against the power rail 4 .

[0048] It can be seen from the above description that the power spring 18 with a double-contact design and the arrangement of the elastic protrusion 181 can improve the contact performance between the power spring 18 and the power rail 4 and ensure a stable electrical connection.

[0049] Furthermore, the PCB board 17 is provided with a plurality of fixing grooves 171 , and the power spring 18 has a claw 183 extending toward the fixing groove 171 to be engaged therewith.

[0050] From the above description, it can be seen that the engagement between the claw 183 of the power spring 18 and the fixing groove 171 on the PCB board 17 can strengthen the connection between the PCB board 17 and the power spring 18, and can facilitate positioning and welding during production.

[0051] Embodiment 1:

[0052] Application scenario: In the assembly design of the electronic price tag 5 and its power supply assembly, the existing hanging power supply assembly has a large size, is not easy to hide, has many internal parts, and is more complicated to assemble; while the integrated power supply assembly has higher requirements for the dimensional accuracy of the electronic price tag 5.

[0053] like Figures 1 to 10 As shown, the power supply assembly of this embodiment includes a connecting member 1, a rotating clamp 2 and a fixing member 3. The connecting member 1 is used to electrically connect the power rail 4 and the electronic tag. The connecting member 1 is rotatably provided with a rotating clamp 2, and the rotating clamp 2 is clamped with the power rail 4.

[0054] like Figure 4 As shown, the connector 1 includes a housing 12 , a stopper, a connecting harness 15 , a fixing plate 16 , a PCB board 17 and a power spring 18 .

[0055] like Figures 2 to 9 As shown, the housing 12 is arranged in the power rail 4, and openings 121 are provided on both sides of the housing 12; the housing 12 includes a cover plate and a bottom plate, the cover plate is bolted to the bottom plate, and a plurality of openings are provided on the cover plate; a mounting opening for mounting the rotary clamp 2 is provided in the middle of the bottom plate, and an abutting boss 122 is provided in four directions of the mounting opening, respectively, and the abutting boss 122 is continuously provided with a first step structure 1221 and a second step structure 1222 from top to bottom, and the PCB board 17 abuts against the first step structure 1221, the fixing plate 16 abuts against the second step structure 1222, the power spring 18 is arranged on the PCB board 17, and the power spring 18 is provided with two, each power spring 18 is provided with two elastic protrusions 181, the elastic protrusions 181 protrude from the opening of the cover plate and are provided with connection contacts 182 connected to the power rail 4, and the connection contacts 182 of the elastic protrusions 181 on one side of the two power springs 18 correspond to one polarity, forming a single-side double-contact design to enhance the conductive efficiency. The PCB board 17 is provided with a plurality of fixing grooves 171, and the power spring 18 extends toward the fixing groove 171 with a claw 183 engaged therewith. One end of the connecting harness 15 is fixed on the fixing plate 16 and connected to the PCB board 17, while the other end of the connecting harness 15 extends through the installation port to the inside of the electronic price tag 5 to connect with it. A fixing sleeve is fixedly provided on the connecting harness 15, and a U-shaped groove 11 is concave on the fixing sleeve; a fixing part 3 is fixedly provided inside the corresponding electronic price tag 5, and the fixing part 3 is U-shaped and inserted into the U-shaped groove 11, and the fixing part 3 can be a wire card; in addition, the connecting harness 15 is a flexible harness, which can adjust the inclination angle of the product to within 30 degrees; the internal size of the harness is punched out using a mold, which can well control the size and prevent the two sides of the product from having different heights.

[0056] like Figure 7As shown, two symmetrical limiters are provided on the bottom plate, and the limiters are hollowed-out structures of the bottom plate, and include limiter hooks 13 and elastic connecting arms 14, and the elastic connecting arms 14 are connected to the bottom plate, and the end of the elastic connecting arms 14 away from the bottom plate is provided with the limiter hook 13. The limiter formed by directly hollowing out the lower end surface of the shell 12 can reduce the additional assembly of parts, reduce the complexity of the assembly, and maintain a stable connection between the limiter and the shell 12.

[0057] like Figures 8 to 10 As shown, the rotary clamp 2 includes a clamping joint 21 and a rotating sleeve 22. The clamping joint 21 is rotatably arranged in the housing 12. The clamping joint 21 is provided with clamping protrusions 211 for clamping with the power rail 4 on both sides. Specifically, the clamping protrusion 211 is provided with guiding bevels 2111 on both sides. When the clamping protrusion 211 rotates, it can be more easily installed on the power rail 4 through the arrangement of the guiding bevels 2111. One side edge of the opening 121 is located on the rotation path of the clamping protrusion 211 and abuts against the clamping protrusion 211, and the other side edge is away from the rotation path of the clamping protrusion 211. The housing 12 is provided with an abutting boss 122 as a limiting structure for the clamping protrusion 211 to rotate to the inside of the housing 12. The abutting boss 122 is arranged on the rotation path of the clamping protrusion 211 and abuts against the clamping protrusion 211. The clamping joint 21 is provided with a plurality of limiting grooves 212 in its circumferential direction, and the limiting grooves 212 are respectively the limiting positions corresponding to the first state in which the clamping joint 21 is rotated to the clamping protrusion 211 protruding from the opening 121 of the shell 12 and the limiting positions corresponding to the second state in which the clamping joint 21 is rotated to the clamping protrusion 211 being located inside the shell 12. The above-mentioned two states of the clamping joint 21 are fixed by clamping the limiting hook 13 with the limiting grooves 212.

[0058] like Figure 5 , Figure 6 and Fig.10As shown, the clamping joint 21 is provided with a rotating sleeve 22 in a direction away from the housing 12, and the rotating sleeve 22 is provided with anti-skid patterns. Specifically, the anti-skid patterns include a first pattern and a second pattern, the first pattern includes a plurality of first convex strips 221 arranged at intervals along the circumference of the rotating sleeve 22, the cross section of the first convex strip 221 includes a first arc 2211 and a second arc 2212, the first arc 2211 is connected to the second arc 2212 in the counterclockwise rotation direction of the rotating sleeve 22, the first arc 2211 is bent away from the center of the rotating sleeve 22, and the second arc 2212 is bent toward the center of the rotating sleeve 22; the second pattern includes a plurality of first convex strips 221 arranged along the circumference of the rotating sleeve 22, and the first convex strips 2212 are bent toward the center of the rotating sleeve 22; the second pattern includes a plurality of first convex strips 221 arranged along the circumference of the rotating sleeve 22; the first convex strips 2211 are connected to the second convex strips 2212 in the counterclockwise rotation direction of the rotating sleeve 22; the first convex strips 2211 are bent away from the center of the rotating sleeve 22, and the second ... The second convex strips 222 are arranged at intervals on the circumference of the rotating sleeve 22, and the cross section of the second convex strips 222 includes a third arc 2221 and a fourth arc 2222. The third arc 2221 is connected to the fourth arc 2222 in the clockwise rotation direction of the rotating sleeve 22. The third arc 2221 is bent away from the center of the rotating sleeve 22, and the fourth arc 2222 is bent toward the center of the rotating sleeve 22. The first and second lines are symmetrically distributed on the rotating sleeve 22, so that the clockwise and counterclockwise rotations are uniformly stressed. The interiors of the clamping connector 21 and the rotating sleeve 22 are both hollow, and the connecting harness 15 passes through the clamping connector 21 and the rotating sleeve 22 to connect with the electronic price tag 5.

[0059] The working principle of the utility model is as follows: when assembling, the housing 12 is first placed in the power rail 4, and then the rotating sleeve 22 is rotated to rotate the clamping joint 21, and the clamping convex edge 211 is rotated to protrude from the opening 121 of the housing 12, and the clamping convex edge 211 is clamped on the power rail 4; when the clamping convex edge 211 is rotated to the right position, the limit hook 13 hits the limit groove 212 corresponding to the state of the clamping joint 21 at this time under the action of the elastic connecting arm 14 and clamps with it, and the sound emitted can assist the operator to judge whether it is rotated to the right position. Then, at the connecting harness 15, the fixing sleeve on the connecting harness 15 is pressed into the U-shaped fixing piece 3 set inside the electronic price tag 5, so that the U-shaped fixing piece 3 is clamped with the U-shaped groove 11 on the fixing sleeve to fix the connecting piece 1 and the electronic price tag 5. At the same time, the double contact design of the power spring 18 and the design of the elastic protrusion 181 can ensure good contact between the power spring 18 and the power rail 4, and effectively improve the power-on stability of the electronic price tag 5.

[0060] In summary, the power supply assembly provided by the utility model supplies power to the electronic price tag by connecting the connector with the power rail and the electronic price tag. The connector is matched with a rotary clamp to quickly clamp and fix with the power rail in the form of a rotating clamp. The connector and the electronic price tag are fixed by plugging and matching the U-shaped groove provided on the connector with the U-shaped fixing part on the electronic price tag to achieve rapid fixation of the two. The device has a simple structure, requires few parts, is easy to disassemble and assemble, and is convenient for on-site installation. Its assembly only requires the use of a rotary clamp to fix the connector and the power rail, and a fixing part to fix the connector and the electronic price tag. The requirements for the shell size accuracy of the electronic price tag are relatively low, which can effectively improve the yield rate.

[0061] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A power supply assembly, characterized in that: It includes a connecting piece, a rotating clamp and a fixing piece. The connecting piece is used to electrically connect the power rail and the electronic tag. The connecting piece is rotatably provided with a rotating clamp, and the rotating clamp is engaged with the power rail. The fixing piece is arranged in the electronic tag to be connected. The lower end of the connecting piece is concave with a U-shaped groove; the fixing piece is U-shaped and is inserted into the U-shaped groove.

2. The power supply assembly according to claim 1, characterized in that: The connecting member includes a shell, which is arranged in the power rail, and openings are provided on both sides of the shell; the rotating clamp includes a clamping joint, which is rotatably arranged in the shell, and clamping protrusions for clamping with the power rail are provided on both sides of the clamping joint; an edge on one side of the opening is located on the rotation path of the clamping protrusion and abuts against the clamping protrusion, and an edge on the other side is away from the rotation path of the clamping protrusion.

3. The power supply assembly according to claim 2, characterized in that: The connecting member further comprises a limiting member, wherein the limiting member is arranged on the housing, and the clamping joint is provided with a plurality of limiting grooves in its circumferential direction, and the limiting member is clamped with the limiting grooves.

4. The power supply assembly according to claim 3, characterized in that: The limiting member comprises a limiting hook and an elastic connecting arm, wherein the elastic connecting arm is connected to the housing, and a limiting hook cooperating with the limiting groove is arranged on one end of the elastic connecting arm away from the housing.

5. The power supply assembly according to claim 2, characterized in that: The rotary clamp also includes a rotating sleeve. The clamp joint is provided with a rotating sleeve in a direction away from the housing, and the rotating sleeve is provided with anti-slip patterns.

6. The power supply assembly according to claim 5, characterized in that: The anti-slip pattern includes a first pattern and a second pattern, the first pattern includes a plurality of first convex strips arranged at intervals along the circumference of the rotating sleeve, the cross section of the first convex strip includes a first arc and a second arc, the first arc is connected to the second arc in the counterclockwise rotation direction of the rotating sleeve, the first arc is bent away from the center of the rotating sleeve, and the second arc is bent toward the center of the rotating sleeve; the second pattern includes a plurality of second convex strips arranged at intervals along the circumference of the rotating sleeve, the cross section of the second convex strip includes a third arc and a fourth arc, the third arc is connected to the fourth arc in the clockwise rotation direction of the rotating sleeve, the third arc is bent away from the center of the rotating sleeve, and the fourth arc is bent toward the center of the rotating sleeve.

7. The power supply assembly according to claim 2, characterized in that: A limiting boss is arranged in the shell body, and the limiting boss is arranged on the rotation path of the clamping convex edge and abuts against the clamping convex edge.

8. The power supply assembly according to claim 2, characterized in that: The connector also includes a connecting harness, a fixing plate, a PCB board and a power spring. One end of the connecting harness is connected to the electronic price tag, and the other end is fixed to the fixing plate and connected to the PCB board. An abutment boss is provided in the shell, and the abutment boss is provided with a first step structure and a second step structure continuously arranged from top to bottom. The PCB board abuts on the first step structure, the fixing plate abuts on the second step structure, and the power spring is arranged on the PCB board.

9. The power supply assembly according to claim 8, characterized in that: Two power springs are arranged side by side. The power springs include at least two elastic protrusions. The elastic protrusions protrude from the upper end surface of the shell. The elastic protrusions are provided with connection contacts, which abut against the power rail.

10. The power supply assembly according to claim 8, characterized in that: The PCB board is provided with a plurality of fixing grooves, and the power springs extend toward the fixing grooves and have claws engaged therewith.

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