A power pack and power connection assembly without installation handle or button

Abstract

The application discloses a power supply box and a power supply connecting assembly without a handle or a button, wherein the power supply box comprises: a box body, which is provided with a power taking head on the upper side, and is provided with a mounting slot with an opening facing the upper side; a rotation limiting buckle, which comprises a first buckle and a second buckle, the upper end of the first buckle and the upper end of the second buckle can be retracted into the mounting slot or extended out of the mounting slot along with the rotation of the rotation limiting buckle; and an elastic element, which is used for applying a spring force to the rotation limiting buckle, and the rotation limiting buckle is switched by the spring force for rotation between at least a disengagement state, an entry state and a locking state. The power supply box is connected with a power supply rail through overall rotation, and the connection can be completed in the process of rotating the power supply box. Compared with the existing buckle connecting structure with a handle or a button used by the power supply box, the overall rotation of the power supply box is more convenient and labor-saving, the space of the existing buckle connecting structure is reduced, and the volume of the power supply box can be reduced.

Description

Technical Field

[0001] This invention relates to the field of electrical connection technology, and in particular to a power supply box and power connection assembly without a handle or button. Background Technology

[0002] A power rail power supply is a new type of power connection method, which includes a power rail and a power box. The power rail is equipped with a conductive strip for receiving electricity, and the power box can be moved to connect to the power rail and connect to the conductive strip to draw power.

[0003] The current snap-fit ​​connection structure for power supply boxes, which connects to the power rail, involves a latch and a handle or button. The latch connects to the handle or button, and when the handle is turned or the button is pressed, the latch engages and secures with the power rail. However, this method is relatively difficult to operate, and the handle or button protrudes significantly from the outside of the power supply box. Furthermore, the snap-fit ​​connection structure occupies a large amount of space, increasing the overall size of the power supply box. Summary of the Invention

[0004] The main objective of this invention is to propose a power box, power rail, and power connection assembly without a handle or button, aiming to solve the technical problems of the existing power box's snap-fit ​​connection structure to the power rail being laborious to operate and taking up a lot of space.

[0005] To achieve the above objectives, the present invention proposes a power supply box without a handle or button, comprising:

[0006] The box body has a protruding upper side with a power tap for passing through a slot in the power rail and being inserted into the power rail. The power tap has a receiving part and an upper and lower limiting part. The receiving part is used to connect to the conductive strip in the power rail, and the upper and lower limiting part is used to limit the power rail in the upper and lower direction. The box body has a mounting groove with the opening facing upward.

[0007] A rotating limiting buckle is provided in the mounting groove. The rotating limiting buckle can rotate up and down relative to the box body. The rotating limiting buckle includes a first fastener and a second fastener arranged along the rotation direction of the rotating limiting buckle. The upper ends of the first fastener and the upper ends of the second fastener can retract into the mounting groove or extend out of the mounting groove as the rotating limiting buckle rotates.

[0008] An elastic element is configured to apply a spring force to the rotation limit latch, the spring force being directed from the first fastener toward the second fastener, the rotation limit latch being used by means of the spring force to rotate between at least a disengaged state, an engaged state, and a locked state, wherein:

[0009] In the disengaged state, under the action of the spring force, the upper part of the first fastener protrudes from the mounting groove, and the upper part of the second fastener is lower than, level with, or slightly higher than the opening of the mounting groove, so that the lower side of the power rail can pass through the upper side of the second fastener.

[0010] In the entered state, the second fastener moves upward as the first fastener, which is pressed downward into the mounting groove by the power rail, moves downward, causing the upper part of the second fastener to protrude out of the mounting groove and extend into the slot of the power rail. The rotation limit buckle applies a force to the elastic element that is opposite to the direction of the spring force.

[0011] In the locked state, under the action of the spring force, the first fastener springs back upward and protrudes from the mounting groove and enters the slot of the power rail, so that the upper part of the first fastener and the upper part of the second fastener can respectively abut against the inner sides of the slot of the power rail.

[0012] When assembling the power box onto the power rail, first insert the power tap through the slot of the power rail into the inside of the power rail, and rotate the limit buckle to disengage it under the action of the elastic element.

[0013] Then rotate the power box horizontally as a whole, so that the power box moves closer to the power rail from one side of the second fastener, and the power rail can pass over the top of the second fastener.

[0014] As the power box rotates, the upper side of the first fastener will touch the power rail. At this time, the slot of the power rail is located directly above the second fastener. The rotation limit buckle switches to the engaged state, and the power rail continues to press the first fastener downward, causing the second fastener to move upward and extend into the slot of the power rail. At the same time, the elastic element is subjected to a reverse force by the rotation limit buckle.

[0015] As the power supply box continues to rotate, the slot of the power rail moves relative to the upper part of the first fastener. At this time, the rotating limit buckle switches to the locking state. Under the action of the spring force of the elastic element, the first fastener is pushed upward, and the upper part of the first fastener enters the slot upward. The second fastener is pressed downward. The first and second fasteners respectively abut against the two sides of the slot of the power rail. At this time, the power supply box and the power rail are assembled in place.

[0016] After assembly, the power box and power rail are in a state where the power take-off head's upper and lower limit parts prevent the power box from falling off the power rail. The power box also prevents lateral rotation due to the rotation limit buckle of the power box and the slot of the power rail. The power take-off head's contact part contacts the conductive strip of the power rail to take power, thus enabling the power box to be installed on the power rail.

[0017] The power supply box of this invention connects to the power rail by rotating as a whole, and the connection is completed during the rotation of the power supply box. Compared with the existing power supply boxes that use a snap-fit ​​connection structure with handles or buttons, the power supply box of this invention is more convenient and less labor-intensive by rotating as a whole, and it also reduces the space of the existing snap-fit ​​connection structure, thus reducing the size of the power supply box.

[0018] Preferably, the lower side of the first fastener is connected to the lower side of the second fastener, and a deformation gap is provided between the first fastener and the second fastener, so that the first fastener and the second fastener can elastically come together or open.

[0019] In the initial stage of engagement, as the power rail compresses the first fastener downwards and the second fastener moves upwards, there may be interference between the power rail and the second fastener within a small distance. The power rail blocks the second fastener from moving upwards. At this time, due to the elastic deformation between the first and second fasteners, they can relatively open to accommodate the interference. In the locked state, the first and second fasteners can elastically contract and have a tendency to open, allowing them to fit tightly against the slots in the power rail.

[0020] Preferably, the upper part of the first fastener has a first protrusion on the side near the second fastener, and the upper part of the second fastener has a second groove with an open lower side on the side away from the first fastener; the first protrusion is used to slide against the lower side of the power rail when in the entering state, and when switching to the locking state, the first protrusion can be inserted upward into the slot of the power rail and abut against one side of the slot; the second groove is used to move downward to abut against the upper side of the other side of the slot when switching from the entering state to the locking state.

[0021] In the locked state, the first protrusion on the upper part of the first fastener enters the slot of the power rail and abuts against one side of the slot. The upper side of the first fastener away from the second fastener abuts against the lower side of the power rail, so that the first fastener can be engaged with the power rail. The second fastener is pressed against the upper side of the slot through the second groove. The first protrusion and the second groove play a role in restricting lateral displacement. At the same time, the second fastener plays a role in assisting in upper and lower limit. Especially when the length of the power box is too long, the second fastener can help prevent the side of the power box away from the power head from sagging, improve the stability of the connection, and keep the power box close to the power rail.

[0022] Preferably, the side of the first protrusion away from the second fastener is provided with an exit compression ramp, and the rotation limit buckle also has an unlocked state. The exit compression ramp is used to compress the first protrusion downward when the power rail moves in the opposite direction and slides along the exit compression ramp when switching from the locking state to the unlocked state.

[0023] When the power box needs to be removed from the power rail, rotate the power box in the opposite direction of assembly. The power rail can then compress the first fastener downwards along the release compression ramp. As the power box and the power rail continue to move relative to each other, the power rail no longer compresses the first fastener. Under the spring force of the elastic element, the second fastener also exits downwards from the slot of the power rail. Rotate the limit buckle to return to the disengaged state. The disassembly operation is simple.

[0024] Preferably, the upper side of the second fastener has a second arc surface. In the engaged state, if the upper side of the second fastener is slightly higher than the mounting groove, the second arc surface allows the power rail to easily press the second fastener downwards, facilitating installation. In the engaged state, when the power rail and the second fastener interfere with each other, they can also easily slide relative to each other, causing the second fastener to open.

[0025] Preferably, the power receiving part includes a protrusion and a contact piece. The protrusion is fixedly connected to the housing, and the contact piece is disposed on the protrusion. The end of the contact piece extends laterally, and the contact piece is used to contact the conductive strip in the power rail to draw power. The power receiving part includes the contact piece. The protrusion is provided with upper and lower limiting blocks, and the upper and lower limiting blocks are provided with insertion narrow parts. The insertion narrow parts are used to insert into the slot of the power rail. The length direction of the upper and lower limiting blocks is perpendicular to or at an angle to the length direction of the housing. The upper and lower limiting blocks are used to engage with the upper and lower limiting slots in the power rail after being inserted into the power rail and the housing is rotated laterally. The upper and lower limiting part includes the upper and lower limiting blocks.

[0026] The upper and lower limit blocks on the protruding post are provided with insertion narrow parts. The insertion narrow parts can be inserted into the slots of the power rail. When the power box is rotated, the upper and lower limit blocks also rotate and rotate into the upper and lower limit slots of the power rail, so that the power box and the power rail are locked together. At the same time, the contact piece also contacts the conductive strip in the power rail to draw power. The structure is relatively simple and easy to operate.

[0027] Preferably, the elastic element is a V-shaped spring sheet, which is disposed in the mounting groove and on the lower side of the first fastener away from the second fastener. The opening of the V-shaped spring sheet faces upward, and one side of the V-shaped spring sheet abuts against the first fastener.

[0028] Preferably, the housing includes an upper cover, a latching seat, and a lower housing open on the upper side. The upper cover is fixed to the upper side of the lower housing, the power take-up head is fixed to the upper side of the upper cover, and the latching seat is fixed to the inner side of the lower housing. A rotation-limiting latch is rotatably connected to the latching seat. An electrical cavity is formed between the latching seat, the upper cover, and the lower housing. The latching seat separates the electrical cavity from the mounting groove. This arrangement, with the rotation-limiting latch inside the lower housing and the lower side of the lower housing being a single piece, reduces seams between components, making the power box more aesthetically pleasing.

[0029] In another aspect, the present invention also proposes a power connection assembly having the aforementioned power box. The power connection assembly further includes a power rail with a slot on its lower side for inserting the power receiving head. The width of the slot is matched to the distance between the first fastener and the second fastener, allowing the first fastener and the second fastener to be inserted into the slot. A conductive strip is provided on the inner side of the power rail for electrically connecting to the power receiving part. The interior of the power rail is provided with upper and lower limiting grooves for engaging with the upper and lower limiting parts.

[0030] By adopting the aforementioned power box without mounting handles or buttons, it is easier and less strenuous to rotate the power box as a whole when installing it onto the power rail, and the size of the power box is also reduced. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the power supply box of the present invention;

[0033] Figure 2 This is an exploded structural diagram of the power supply box of the present invention;

[0034] Figure 3 This is a side view of the rotation limit buckle position of the power supply box of the present invention.

[0035] Figure 4 This is a schematic diagram of the rotation limiting buckle of the present invention;

[0036] Figure 5 This is a schematic diagram of the cross-sectional structure of the power supply rail of the present invention;

[0037] Figure 6This is a schematic diagram of the power supply head and power rail of the power box after assembly according to the present invention;

[0038] Figure 7 This is a three-dimensional structural diagram of the power box of the present invention when the power take-up head is inserted into the slot of the power rail and the power box starts to rotate.

[0039] Figure 8 This is a three-dimensional structural diagram of the power supply box and power rail of the present invention after assembly.

[0040] Figure 9 This is a schematic diagram of the structure of the power box and power rail of the present invention when the rotation limit buckle is in the disengaged state.

[0041] Figure 10 This is a schematic diagram of the structure of the power box and power rail of the present invention when the rotation limit buckle switches from the disengaged state to the engaged state during connection.

[0042] Figure 11 This is a schematic diagram of the structure of the power supply box and the power supply rail of the present invention in the early stage when the rotation limit buckle is in the engaged state.

[0043] Figure 12 This is a schematic diagram of the later stage of the power supply box and power rail connection of the present invention, in which the rotation limit buckle is in the engaged state.

[0044] Figure 13 This is a schematic diagram of the structure of the power supply box and the power supply rail of the present invention when the rotation limit buckle switches from the engaged state to the locked state.

[0045] In the attached diagram: 1-Power supply box, 2-Box body, 21-Power take-off head, 211-Power receiving part, 212-Upper and lower limit parts, 2121-Insertion narrow part, 213-Protrusion post, 22-Lower shell, 23-Upper cover plate, 24-Snap fastener, 25-Electrical appliance inner cavity, 26-Mounting groove, 27-First connecting shaft, 28-First limit block, 29-Second limit block, 3-Rotation limit snap fastener, 31-First fastener, 311-First protrusion, 312-Exit compression slope, 313-First flat section, 32-Second fastener, 321-Second groove, 322-Second arc surface, 33-Deformation gap, 34-Slot, 4-Elastic element, 5-Power rail, 51-Slot, 511-Step, 52-Conductive strip, 53-Upper and lower limit groove, 54-Insulating strip.

[0046] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that if the embodiments of the present invention involve directional indicators, such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0050] like Figures 1 to 13 As shown, a power connection assembly includes a power box 1 without a handle or button and a power rail 5. (Refer to...) Figure 5 The power rail 5 has a slot 51 on its lower side and a conductive strip 52 on its inner side.

[0051] Reference Figures 1 to 4 The power supply box 1 includes a box body 2, a rotation limit buckle 3, and an elastic element 4.

[0052] The upper side of the box body 2 is provided with a protruding power head 21 for passing through the slot 51 of the power rail 5 and being inserted into the power rail 5. The power head 21 is provided with a power receiving part 211 and an upper and lower limiting part 212. The power receiving part 211 is used to electrically connect with the conductive strip 52 inside the power rail 5. The upper and lower limiting part 212 is used to limit the power rail 5 in the upper and lower direction. The inside of the power rail 5 is provided with an upper and lower limiting groove 53 for engaging with the upper and lower limiting part 212. The box body 2 is provided with a mounting groove 26 with the opening facing upward.

[0053] The rotation limit buckle 3 is located in the mounting groove 26. The rotation limit buckle 3 can rotate up and down relative to the box body 2. The rotation limit buckle 3 includes a first fastener 31 and a second fastener 32 arranged along the rotation direction of the rotation limit buckle 3. The upper end of the first fastener 31 and the upper end of the second fastener 32 can retract into the mounting groove 26 or extend out of the mounting groove 26 as the rotation limit buckle 3 rotates.

[0054] The elastic element 4 is configured to apply a spring force to the rotation limit buckle 3, and the direction of the spring force is from the first fastener 31 toward the second fastener 32.

[0055] The rotation limit latch 3 is used by spring force to rotate between at least the disengaged state, the engaged state, and the locked state, wherein:

[0056] In the disengaged state, under the action of the spring force, the upper part of the first fastener 31 protrudes from the mounting groove 26, and the upper part of the second fastener 32 is lower than, level with, or slightly higher than the opening of the mounting groove 26, so that the lower side of the power rail 5 can pass through the upper side of the second fastener 32; the upper part of the first fastener 31 protrudes from the mounting groove 26, that is, it cannot be installed from one side of the first fastener 31, which can serve as a reminder of the installation direction.

[0057] In the state of entry, the second fastener 32 moves upward as the first fastener 31, which is pressed downward into the mounting groove 26 by the power rail 5, moves downward, so that the upper part of the second fastener 32 protrudes out of the mounting groove 26 and extends into the slot 51 of the power rail 5. The rotating limit buckle 3 applies a force to the elastic element 4 in the opposite direction to the spring force.

[0058] In the locked state, under the action of the spring force, the first fastener 31 springs upward and protrudes from the mounting groove 26 and enters the slot 51 of the power rail 5, so that the upper part of the first fastener 31 and the upper part of the second fastener 32 can respectively abut against the inner sides of the slot 51 of the power rail 5. The width of the slot 51 is matched with the distance between the first fastener 31 and the second fastener 32, so that the first fastener 31 and the second fastener 32 can be inserted into the slot 51.

[0059] When assembling the power supply box 1 onto the power rail 5, first insert the power take-off head 21 through the slot 51 of the power rail 5 into the interior of the power rail 5. At this time, the power supply box 1 and the power rail 5 are at an angle. The rotation limit buckle 3 is in a disengaged state under the action of the elastic element 4. Refer to... Figure 7 and Figure 9 Then, with the power take-off head 21 as the center, rotate the entire power box 1 horizontally. The power box 1 moves from one side of the second fastener 32 toward the power rail 5, and the power rail 5 can pass over the upper side of the second fastener 32.

[0060] As the power supply box 1 rotates, the upper side of the first fastener 31 will touch the power rail 5, as shown in the reference. Figure 10 At this time, the slot 51 of the power rail 5 is located directly above the second fastener 32. Rotating the limit latch 3 switches to the engaged state, and the power rail 5 continues to press the first fastener 31 downwards, as shown in the reference... Figure 11 and Figure 12 This causes the second fastener 32 to move upward and extend into the slot 51 of the power rail 5, while the elastic element 4 is rotated and limited by the buckle 3 to apply a force in the opposite direction.

[0061] As the power supply box 1 continues to rotate, the slot 51 of the power supply guide rail 5 moves relative to the upper part of the first fastener 31. At this time, the rotating limit buckle 3 switches to the locking state. Under the action of the spring force of the elastic element 4, the first fastener 31 is pushed upward, and the upper part of the first fastener 31 enters the slot 51 upward. (Refer to...) Figure 13 The second fastener 32 is pressed downwards, and the first fastener 31 and the second fastener 32 respectively abut against the two sides of the slot 51 of the power rail 5. At this time, the power box 1 and the power rail 5 are assembled in place, and the power box 1 is parallel to the power rail 5. (Refer to...) Figure 8 .

[0062] After assembly, the power box 1 and the power rail 5 are in a state where the power box 1 does not fall off the power rail 5 due to the upper and lower limit parts 212 of the power take-off head 21. The power box 1 does not rotate laterally due to the rotation limit buckle 3 of the power box 1 and the slot 51 of the power rail 5. The power receiving part 211 of the power take-off head 21 contacts the conductive strip 52 of the power rail 5 to take power, thus realizing the installation of the power box 1 on the power rail 5.

[0063] The power supply box 1 of this invention connects to the power rail 5 via overall rotation, and the connection is completed during the rotation of the power supply box 1. Compared with the existing power supply box 1 which uses a snap-fit ​​connection structure with a handle or button, the overall rotation of the power supply box 1 in this invention is more convenient and labor-saving, and also reduces the space of the existing snap-fit ​​connection structure, thus reducing the size of the power supply box 1. A light fixture can be installed on the lower side of the power supply box 1 to form a rail light, or a plug can be installed, etc.

[0064] In some specific embodiments, reference is made to Figure 4 The first fastener 31 and the second fastener 32 are plastic parts. The lower side of the first fastener 31 and the lower side of the second fastener 32 are connected. A deformation gap 33 is provided between the first fastener 31 and the second fastener 32, so that the first fastener 31 and the second fastener 32 can elastically come together or open.

[0065] In the initial stage of entering the state, when the power rail 5 just compresses the first fastener 31 downwards and the second fastener 32 moves upwards, the power rail 5 and the second fastener 32 may interfere within a small distance. The power rail 5 blocks the second fastener 32 from moving upwards. At this time, because the first fastener 31 and the second fastener 32 can elastically deform, the first fastener 31 and the second fastener 32 can relatively open to adapt to the interference. The first fastener 31 and the second fastener 32 can be set such that the distance between the outer sides of the first fastener 31 and the second fastener 32 is greater than the width of the slot 51 of the power rail 5. In the locked state, the first fastener 31 and the second fastener 32 can elastically contract and have a tendency to open, so that the first fastener 31 and the second fastener 32 are tightly attached to the slot 51 of the power rail 5.

[0066] Furthermore, the rotation limit buckle 3 is rotatably connected to the box body 2 at the position of the first fastener 31. The first fastener 31 is rotatably connected to the box body 2 through the first connecting shaft 27, which allows the second fastener 32 to have a larger deformable range.

[0067] Furthermore, the box body 2 is also provided with a first limiting block 28. The first limiting block 28 is located on the side of the second fastener 32 away from the first fastener 31. The first limiting block 28 is used to limit the second fastener 32 from going too far downward when it is in the disengaged state, and to limit the angle position of the rotation limiting buckle 3.

[0068] In some specific embodiments, the upper part of the first fastener 31 near the side of the second fastener 32 is provided with a first protrusion 311. The first protrusion 311 is used to slide against the lower side of the power rail 5 when in the engaged state. When switching to the locking state, the first protrusion 311 can be inserted upward into the slot 51 of the power rail 5 and abut against one side of the slot 51. The upper part of the second fastener 32 away from the first fastener 31 is provided with a second groove 321 with its lower side open. When switching from the engaged state to the locking state, the second groove 321 is used to move downward to abut against the upper side of the other side of the slot 51.

[0069] In the locked state, the first protrusion 311 on the upper part of the first fastener 31 enters the slot 51 of the power rail 5 and abuts against one side of the slot 51. The upper side of the first fastener 31, away from the second fastener 32, abuts against the lower side of the power rail 5, so that the first fastener 31 can be engaged with the power rail 5. The second fastener 32 is pressed against the upper side of the slot 51 through the second groove 321. The first protrusion 311 and the second groove 321 play a role in restricting lateral displacement. At the same time, the second fastener 32 plays a role in assisting in upper and lower limit. Especially when the length of the power box 1 is long, the second fastener 32 can help prevent the power box 1 from drooping on the side away from the power head 21, improve the stability of the connection, and keep the power box 1 in close contact with the power rail 5.

[0070] Furthermore, the first fastener 31 has a first flat section 313 on the side of the first protrusion 311 away from the second fastener 32, which abuts against the lower side of the power rail 5 when locked, thereby increasing the contact area with the lower side of the power rail 5.

[0071] The second groove 321 has two vertical sides and a step 511 on the upper side of the slot 51 on the other side of the power rail 5. When in the locking state, the second groove 321 presses on the step 511 to increase the contact area and improve stability.

[0072] Furthermore, the side of the first protrusion 311 away from the second fastener 32 is provided with an exit compression ramp 312, and the rotation limit buckle 3 also has an unlocked state. The exit compression ramp 312 is used to compress the first protrusion 311 downward when the power rail 5 moves in the opposite direction and slides along the exit compression ramp 312 when switching from the locked state to the unlocked state.

[0073] When it is necessary to remove the power box 1 from the power rail 5, rotate the power box 1 in the opposite direction of assembly. The power rail 5 can then compress the first fastener 31 downwards along the release compression ramp 312. As the power box 1 and the power rail 5 continue to move relative to each other, the power rail 5 no longer compresses the first fastener 31. Under the spring force of the elastic element 4, the second fastener 32 also exits downwards from the slot 51 of the power rail 5. The rotating limit buckle 3 returns to the disengaged state, making disassembly simple. Specifically, in the locked state, the release compression ramp 312 is inclined upwards from the first fastener 31 to the second fastener 32. The release compression ramp 312 can be a straight ramp or an arc-shaped ramp.

[0074] In some specific embodiments, the upper side of the second fastener 32 is provided with a second arc surface 322. When in the engaged state, if the upper side of the second fastener 32 is slightly higher than the mounting groove 26, the second arc surface 322 allows the power rail 5 to easily press the second fastener 32 downwards, facilitating installation. When the power rail 5 and the second fastener 32 interfere with each other in the engaged state, they can also easily slide relative to each other, causing the second fastener 32 to open.

[0075] In some specific embodiments, reference is made to Figure 2 and Figure 3The power receiving part 211 includes a protrusion 213 and a contact piece. The protrusion 213 is fixedly connected to the housing 2. The contact piece is disposed on the protrusion 213. The end of the contact piece extends laterally. The contact piece is used to contact the conductive strip 52 in the power rail 5 to obtain power. The power receiving part 211 includes the contact piece. The protrusion 213 is provided with upper and lower limit blocks. The upper and lower limit blocks are provided with insertion narrow parts 2121. The insertion narrow parts 2121 are used to insert into the slot 51 of the power rail 5. The length direction of the upper and lower limit blocks is perpendicular to or at an angle to the length direction of the housing 2. The upper and lower limit blocks are used to engage with the upper and lower limit slots 53 in the power rail 5 after being inserted into the power rail 5 and the housing 2 is rotated laterally. The upper and lower limit part 212 includes the upper and lower limit blocks.

[0076] The upper and lower limiting blocks on the protruding post 213 are provided with insertion narrow portions 2121. These narrow portions 2121 allow insertion into the slots 51 of the power rail 5. When the power box 1 is rotated, the upper and lower limiting blocks also rotate, reaching the upper and lower limiting slots 53 of the power rail 5, thus achieving a locking connection between the power box 1 and the power rail 5. Simultaneously, the contact piece also contacts the conductive strip 52 in the power rail 5 to draw power. The structure is relatively simple and easy to operate. Preferably, the contact piece is mounted on the upper and lower limiting blocks, with the end of the contact piece extending in the same direction as the length of the upper and lower limiting blocks. After installation, the contact piece is flush against the conductive strip 52 after the power box 1 is installed.

[0077] Furthermore, the number of contact pieces is two or more, and the power rail 5 is provided with a corresponding number of conductive strips 52. The multiple contact pieces and multiple conductive strips 52 are arranged in a one-to-one correspondence. The upper and lower limit blocks are set to be staggered vertically, and the upper and lower limit grooves 53 are correspondingly staggered vertically. During installation, the upper and lower limit blocks can only be rotated into the upper and lower limit grooves 53 after being installed in place, so as to avoid installation backwards and play a foolproof role.

[0078] In some specific embodiments, reference is made to Figure 3 The elastic element 4 is a V-shaped spring sheet, which includes two side pieces forming a V shape. The V-shaped spring sheet is disposed in the mounting groove and on the lower side of the first fastener 31 away from the second fastener 32. The opening of the V-shaped spring sheet faces upward. One side piece of the V-shaped spring sheet abuts against the first fastener 31. The V-shaped spring sheet can adapt to deformation and has a large range of positions where spring force can be applied, and the structure is relatively simple.

[0079] Furthermore, a second limiting block 29 is also provided on the box body 2. The second limiting block 29 is located on the lower side of the first fastener. A retaining groove 34 is provided on the side of the first fastener 31 away from the second fastener 32. One side of the V-shaped spring is located in the retaining groove 34, and the other side of the V-shaped spring abuts against the groove wall of the mounting groove. The second limiting block 29 restricts the lower side of the V-shaped spring. The second limiting block 29 and the retaining groove 34 together play the role of restricting the V-shaped spring from excessive displacement or disengagement. In other embodiments, the elastic element 4 can also be a torsion spring, as long as it can apply a spring force to the rotation limiting buckle 3.

[0080] In some specific embodiments, the box body 2 includes an upper cover plate 23, a latching seat 24, and a lower shell 22 with an open upper side. The upper cover plate 23 is fixed to the upper side of the lower shell 22, and the power take-up head 21 is fixed to the upper side of the upper cover plate 23. The latching seat 24 is fixed to the inner side of the lower shell 22. The rotation limiting latch 3 is rotatably connected to the latching seat 24. An electrical cavity 25 is formed between the latching seat 24, the upper cover plate 23, and the lower shell 22. Components for connecting to electricity are disposed in the electrical cavity 25. The other end of the contact piece extends into the electrical cavity 25 to connect to the electrical device. The latching seat 24 divides the electrical cavity 25 and the mounting groove 26. In this way, the rotation limiting latch 3 is disposed inside the lower shell 22, and the lower side of the lower shell 22 is integral, reducing the splicing seams of the components and making the power box 1 more aesthetically pleasing.

[0081] In some specific embodiments, the power rail 5 is provided with an insulating strip 54 inside. The insulating strip 54 is snapped into the power rail 5, and the conductive strip 52 is snapped into the insulating strip 54. The insulating strip 54 can insulate the conductive strip 52 from the power rail 5, and can also insulate multiple conductive strips 52 from each other.

[0082] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A power supply box without a handle or button, characterized in that, include: The box body (2) has a protruding slot (51) on its upper side for passing through the power rail (5) and inserting into the power rail (5). The power head (21) is provided with a receiving part (211) and an upper and lower limiting part (212). The receiving part (211) is used to electrically connect with the conductive strip (52) in the power rail (5). The upper and lower limiting part (212) is used to limit the power rail (5) in the upper and lower directions. The box body (2) is provided with a mounting groove (26) with the opening facing upward. A rotation limiting buckle (3) is provided in the mounting groove (26). The rotation limiting buckle (3) can rotate up and down relative to the box body (2). The rotation limiting buckle (3) includes a first fastener (31) and a second fastener (32) arranged along the rotation direction of the rotation limiting buckle (3). The upper ends of the first fastener (31) and the second fastener (32) can retract into the mounting groove (26) or extend out of the mounting groove (26) as the rotation limiting buckle (3) rotates. An elastic element (4) is configured to apply a spring force to the rotation limit latch (3), the direction of which is from the first fastener (31) toward the second fastener (32), the rotation limit latch (3) being used by means of the spring force to rotate between at least an open state, an engaged state, and a locked state, wherein: In the disengaged state, under the action of the spring force, the upper part of the first fastener (31) protrudes from the mounting groove (26), and the upper part of the second fastener (32) is lower than, level with or slightly higher than the opening of the mounting groove (26), so that the lower side of the power rail (5) can pass through the upper side of the second fastener (32). In the entered state, the second fastener (32) moves upward as the first fastener (31), which is pressed downward into the mounting groove (26) by the power rail (5), moves downward, so that the upper part of the second fastener (32) protrudes out of the mounting groove (26) and extends into the slot (51) of the power rail (5). The rotation limit buckle (3) applies a force to the elastic element (4) that is opposite to the direction of the spring force. In the locked state, under the action of the spring force, the first fastener (31) springs back upward and protrudes from the mounting groove (26) and enters the slot (51) of the power rail (5), so that the upper part of the first fastener (31) and the upper part of the second fastener (32) can respectively abut against the inner sides of the slot (51) of the power rail (5).

2. The power supply box without a handle or button as described in claim 1, characterized in that, The lower side of the first fastener (31) is connected to the lower side of the second fastener (32), and a deformation gap (33) is provided between the first fastener (31) and the second fastener (32) so that the first fastener (31) and the second fastener (32) can elastically close or open.

3. The power supply box without a handle or button as described in claim 1, characterized in that, The upper part of the first fastener (31) is provided with a first protrusion (311) on the side near the second fastener (32), and the upper part of the second fastener (32) is provided with a second groove (321) with the lower side open on the side away from the first fastener (31). The first protrusion (311) is used to slide against the lower side of the power rail (5) when in the in state. When switching to the locking state, the first protrusion (311) can be inserted upward into the slot (51) of the power rail (5) and abut against one side of the slot (51). The second groove (321) is used to move downward to abut against the upper side of the other side of the slot (51) when the entry state is switched to the latching state.

4. The power supply box without a handle or button as described in claim 3, characterized in that, The first protrusion (311) has an exit compression ramp (312) on the side away from the second fastener (32), and the rotation limit buckle (3) also has an unlocked state. The exit compression ramp (312) is used to compress the first protrusion (311) downward when the power rail (5) moves in the opposite direction and slides along the exit compression ramp (312) when switching from the latched state to the unlocked state.

5. The power supply box without a handle or button as described in claim 1, characterized in that, The second fastener (32) has a second arc surface (322) on its upper side.

6. The power supply box without a handle or button as described in claim 1, characterized in that, The power receiving part (211) includes a protrusion (213) and a contact piece. The protrusion (213) is fixedly connected to the housing (2). The contact piece is disposed on the protrusion (213). The end of the contact piece extends laterally. The contact piece is used to contact the conductive strip (52) in the power rail (5) to draw power. The power receiving part (211) includes the contact piece. The protruding post (213) is provided with upper and lower limiting blocks, and the upper and lower limiting blocks are provided with insertion narrow parts (2121). The insertion narrow parts (2121) are used to insert into the slot (51) of the power rail (5). The length direction of the upper and lower limiting blocks is perpendicular to or at an angle to the length direction of the box (2). The upper and lower limiting blocks are used to engage with the upper and lower limiting grooves (53) in the power rail (5) after the power rail (5) is inserted and the box (2) is rotated laterally. The upper and lower limiting parts (212) include the upper and lower limiting blocks.

7. The power supply box without a handle or button as described in claim 1, characterized in that, The elastic element (4) is a V-shaped spring piece, which is disposed in the mounting groove. The V-shaped spring piece is disposed on the side of the first fastener (31) away from the second fastener (32) on the lower side. The opening of the V-shaped spring piece is set upward, and one side of the V-shaped spring piece abuts against the first fastener (31).

8. The power supply box without a handle or button as described in claim 1, characterized in that, The box body (2) includes an upper cover plate (23), a buckle seat (24), and a lower shell (22) with an open upper side. The upper cover plate (23) is fixed to the upper side of the lower shell (22). The power-taking head (21) is fixed to the upper side of the upper cover plate (23). The buckle seat (24) is fixed to the inner side of the lower shell (22). The rotation limit buckle (3) is rotatably connected to the buckle seat (24). An electrical cavity (25) is formed between the buckle seat (24), the upper cover plate (23), and the lower shell (22). The buckle seat (24) separates the electrical cavity (25) and the mounting groove (26).

9. A power connection assembly, characterized in that, The power supply box (1) as described in any one of claims 1 to 8 is included. The power connection assembly further includes a power rail (5). The lower side of the power rail (5) is provided with a slot (51). The slot (51) is used for the insertion of the power take-up head (21). The width of the slot (51) is matched with the distance between the first fastener (31) and the second fastener (32), so that the first fastener (31) and the second fastener (32) can be inserted into the slot (51). The inner side of the power rail (5) is provided with a conductive strip (52). The conductive strip (52) is used for electrical connection with the power receiving part (211). The interior of the power rail (5) is provided with upper and lower limiting grooves (53) for engaging with the upper and lower limiting parts (212).

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