Drawer plugging device and power distribution cabinet

Abstract

The utility model relates to the field of power distribution cabinets, in particular to a drawer plugging device and a power distribution cabinet. The utility model provides a drawer plugging device which is used for a power distribution cabinet and comprises a drawer body, a plugging assembly and a linkage assembly. The plug-in assembly is in sliding fit with the drawer body, the plug-in assembly is provided with a first contact end, the linkage assembly is provided with a linkage end, and when the drawer body is located at the matching position, the linkage end can enable the plug-in assembly to slide to the first contact end to be in contact with the vertical bar; and the vertical bar can be electrically connected with an electrical part in the drawer body through the plug-in assembly. The influence of the push-in state of the drawer body on the vertical row in a traditional scheme can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of power distribution cabinets, in particular to a drawer plug-in device and a power distribution cabinet. Background Art

[0002] A vertical row for power supply is provided in the cabinet of the power distribution cabinet. A plurality of drawer bodies in the power distribution cabinet are arranged in sequence along the vertical direction. Each drawer body has electrical components. The electrical connection between the electrical components and the vertical row is achieved through a clamping piece arranged on the rear side of the drawer body. The clamping piece is pushed into the cabinet of the power distribution cabinet along with the drawer body. The further the drawer body is pushed into the cabinet, the closer the clamping piece is to the vertical row. When the drawer body is installed in place, the vertical row is just inserted into the card slot of the clamping piece, thereby achieving electrical connection. In the traditional scheme, the clamping piece corresponds to the vertical row one by one, and the position of the clamping piece on the drawer body is fixed. Therefore, the fit between the clamping piece and the vertical row is related to the fit between the drawer body and the cabinet. When the drawer body is pushed into the cabinet, the vertical row may not be accurately inserted into the card slot of the clamping piece due to the offset of the drawer body or the assembly error of the clamping piece, or the vertical row may be twisted and damaged during the insertion process. Summary of the invention

[0003] On the one hand, the utility model provides a drawer plug-in device, which can avoid the influence of the push-in state of the drawer body on the vertical row in the traditional solution.

[0004] On the other hand, the utility model provides a power distribution cabinet.

[0005] The drawer plug-in device provided by the utility model is used for a power distribution cabinet, and comprises a drawer body, a plug-in assembly and a linkage assembly;

[0006] The plug-in component is slidably matched with the drawer body, the plug-in component has a first contact end, and the linkage component has a linkage end. When the drawer body is in the matched position, the linkage end can make the plug-in component slide to the first contact end and contact the vertical row; the vertical row can be electrically connected to the electrical parts in the drawer body through the plug-in component.

[0007] Furthermore, a conductive bar is provided in the drawer body, and the plug-in assembly also has a second contact end, and the second contact end can be slidably matched with the conductive bar.

[0008] Furthermore, the plug-in assembly includes a socket strip and a base; the base is slidably matched with the drawer body, the socket strip is arranged on the base, and slides with the base; along the sliding direction of the base, the first contact end and the second contact end are located on the socket strip, the conductive strip has a first sliding surface, the second contact end is abutted against the first sliding surface, and the second contact end and the first sliding surface can slide relative to each other.

[0009] Furthermore, the vertical row has a second sliding surface, the second sliding surface is parallel to the sliding direction of the base, and the first contact end can slide along with the base until it contacts the second sliding surface.

[0010] Furthermore, the extension strip is rotatably matched with the base, the first contact end and the second contact end are respectively located on both sides of the rotation axis of the extension strip, and the extension strip is provided with an inclined surface, which is located on the side of the first contact end away from the second contact end; when the base slides in a direction close to the vertical row and the vertical row abuts against the inclined surface, the extension strip rotates until the second contact end abuts against the first sliding surface.

[0011] Furthermore, the linkage assembly includes a transmission rod and a connecting rod, the transmission rod is rotatably matched with the drawer body, the transmission rod is radially provided with a hinge portion, one end of the connecting rod is hinged to the hinge portion, and the other end is hinged to the plug-in assembly.

[0012] Furthermore, at least two of the connecting rods are arranged on the transmission rod at intervals along the axial direction of the transmission rod, and any of the connecting rods is hinged to the plug-in assembly.

[0013] Furthermore, the linkage assembly also includes a vertical rod, the vertical rod is meshed with the transmission rod via a bevel gear, and the rotation axis of the vertical rod is parallel to the sliding direction of the drawer body.

[0014] Furthermore, the plug-in assembly includes a plurality of plug-in connectors, each of the plug-in connectors corresponds to a vertical row and a conductive row, and each of the plug-in connectors includes two of the plug-in rows.

[0015] The power distribution cabinet provided by the utility model comprises the drawer plug-in device as described in any one of the above items. Beneficial Effects

[0016] A plurality of plug-in components are provided on the drawer body in the present scheme, and the plug-in components correspond to the vertical rows one by one, and the plug-in components are movably matched with the drawer body. The plug-in components have two state positions, and the linkage end of the linkage component is movably matched with the plug-in component, so that the plug-in component can switch between the first state position and the second state position. When the plug-in component is in the first state position, the contact end can contact with the vertical row as the drawer body is in place, and when the plug-in component is in the second state position, the contact end cannot contact with the vertical row at all times, that is, the movement of the drawer body in the present scheme cannot directly control the contact between the plug-in component and the vertical row. The plug-in component can be controlled by the linkage component to achieve contact with the vertical row after the drawer body is in place. Compared with the traditional solution, when the drawer body is pushed into the cabinet, the plug-in assembly does not have a state of contact with the vertical row. When the drawer body is in place, that is, when the drawer body is in the matching position, the plug-in assembly is controlled by the linkage assembly so that the contact end of the plug-in assembly contacts the vertical row, thereby forming an electrical connection; when the drawer body is in the matching position and the contact end of the plug-in assembly contacts the vertical row, the linkage assembly can be used to control the plug-in assembly so that the plug-in assembly is separated from the vertical row. The coordination between the drawer body and the cabinet in this solution, and the coordination between the plug-in assembly and the vertical row, are realized relatively independently, thereby avoiding the influence of the drawer body's pushed-in state on the vertical row in the traditional solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is an overall schematic diagram provided by Embodiment 1 and Embodiment 2 of the present utility model;

[0019] Figure 2 It is a top view schematic diagram of the plug-in assembly and the linkage assembly provided in the first and second embodiments of the utility model;

[0020] Figure 3 It is a side view schematic diagram of the plug-in assembly and the linkage assembly provided in the first and second embodiments of the utility model.

[0021] Figure numbers: 1-drawer body; 2-plug-in assembly; 3-linkage assembly; 4-vertical row; 5-second sliding surface; 6-first contact end; 7-plug-in row; 8-second contact end; 9-base; 10-first sliding surface; 11-connecting rod; 12-hinge portion; 13-transmission rod; 14-conductive row; 15-vertical rod. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention. Example

[0023] like Figures 1 to 3 As shown, a drawer plug-in device is used in a power distribution cabinet, comprising a drawer body 1, a plug-in component 2 and a linkage component 3; the plug-in component 2 is slidably matched with the drawer body 1, the plug-in component 2 has a first contact end 6, and the linkage component 3 has a linkage end. When the drawer body 1 is in the matched position, the linkage end can make the plug-in component 2 slide to the first contact end 6 and contact the vertical row 4; the vertical row 4 can be electrically connected to the electrical parts in the drawer body 1 through the plug-in component 2.

[0024] The cabinet of the power distribution cabinet is provided with a vertical row 4 for power supply. The multiple drawer bodies 1 in the power distribution cabinet are arranged in sequence along the vertical direction. Each drawer body 1 has electrical parts. The electrical connection between the electrical parts and the vertical row 4 is achieved through a card connector set on the rear side of the drawer body 1. In the traditional scheme, the card connector is pushed into the cabinet of the power distribution cabinet with the drawer body 1. The further the drawer body 1 is pushed into the cabinet, the closer the card connector is to the vertical row 4. When the drawer body 1 is installed in place, the vertical row 4 is just inserted into the card slot of the card connector, thereby achieving electrical connection. The drawer body 1 in this scheme is provided with a plurality of plug-in components 2, which can contact the vertical row 4 in the power distribution cabinet. At this time, the function of the plug-in component 2 is consistent with the card connector in the traditional scheme. The plug-in component 2 is slidably matched with the drawer body 1, and the plug-in component 2 has two state positions. When the plug-in component 2 is in the first state position, the first contact end 6 can contact the vertical row 4 as the drawer body 1 is in place. When the plug-in component 2 is in the second state position, the first contact end 6 is always unable to contact the vertical row 4. The linkage end of the linkage component 3 is movably matched with the plug-in component 2, so that the plug-in component 2 can slide and switch between the first state position and the second state position. That is, the movement of the drawer body 1 in this scheme cannot directly control the contact between the plug-in component 2 and the vertical row 4. The plug-in component 2 can be controlled by the linkage component 3 to slide to contact the vertical row 4 after the drawer body 1 is in place.

[0025] In the traditional solution, the clips correspond to the vertical rows 4 one by one, and the position of the clips on the drawer body 1 is fixed, so the fit between the clips and the vertical rows 4 is related to the fit between the drawer body 1 and the cabinet. When the drawer body 1 is pushed into the cabinet, the vertical rows 4 may not be accurately inserted into the card slots of the clips due to the offset of the drawer body 1 or the assembly error of the clips, or the vertical rows 4 may be twisted and damaged during the insertion process. At the same time, the drawer body 1 in the traditional solution is pushed into the cabinet by a screw rod, and the screw rod drives the drawer body 1 to shake when it rotates, thereby affecting the fit between the clips and the vertical rows 4. Compared with the traditional solution, when the drawer body 1 is pushed into the cabinet, the plug-in assembly 2 does not contact the vertical row 4, so the shaking of the drawer body 1 during the movement into the cabinet will not affect the fit between the plug-in assembly 2 and the vertical row 4. When the drawer body 1 is in place, that is, when the drawer body 1 is in the mating position, the linkage component 3 is used to control the plug-in component 2 to slide, so that the plug-in component 2 slides to the first contact end 6 to contact the vertical row 4, thereby forming an electrical connection; when the drawer body 1 needs to be removed from the cabinet, the linkage component 3 can be used to control the plug-in component 2, so that the plug-in component 2 slides in the opposite direction to the first contact end 6 to disengage from the vertical row 4. The coordination between the drawer body 1 and the cabinet, and the coordination between the plug-in component 2 and the vertical row 4 in this solution are relatively independently realized, thereby avoiding the influence of the push-in state of the drawer body 1 on the vertical row 4 in the traditional solution.

[0026] In an optional embodiment, a conductive bar 14 is provided in the drawer body 1 , and the plug-in assembly 2 further has a second contact end 8 , and the second contact end 8 can be slidably matched with the conductive bar 14 .

[0027] The conductive row 14 cooperates with the plug-in assembly 2 to realize the electrical connection between the vertical row 4 and the electrical components in the drawer body 1. The conductive row 14 is fixed to the drawer body 1 by means of screws or buckles. The conductive row 14 is made of copper or other conductive materials. The first contact end 6 and the second contact end 8 of the plug-in assembly 2 can also conduct electricity. The second contact end 8 of the plug-in assembly 2 can contact the conductive row 14. When the plug-in assembly 2 slides, the second contact end 8 always contacts the conductive row 14 by sliding with the conductive row 14. When the plug-in assembly 2 slides to the first contact end 6 to contact the vertical row 4, an electrical connection is formed between the vertical row 4, the plug-in assembly 2, the conductive row 14 and the electrical components in the drawer body 1. After the circuit breaker and other switch components in the drawer body 1 perform a closed circuit operation, the current of the vertical row 4 can be introduced into the drawer body 1.

[0028] In an optional embodiment, the plug-in assembly 2 includes a socket strip 7 and a base 9; the base 9 is slidably matched with the drawer body 1, and the socket strip 7 is arranged on the base 9 and slides with the base 9; along the sliding direction of the base 9, the first contact end 6 and the second contact end 8 are located on the socket strip 7, the conductive strip 14 has a first sliding surface 10, the second contact end 8 is abutted against the first sliding surface 10, and the second contact end 8 and the first sliding surface 10 can slide relative to each other.

[0029] The linkage component 3 and the plug-in component 2 in this solution are both arranged on the drawer body 1, and a drawer integrated part is formed between the three. In any state of the drawer, the linkage component 3 can control the plug-in component 2 and change the state of the plug-in component 2, so as to debug the drawer body 1 integrated part before the drawer body 1 is assembled with the cabinet. A slide groove is provided on the base 9, and a slider is provided on the bottom plate of the drawer body 1. The slider is embedded in the slide groove. The base 9 is arranged on the drawer body 1 through the cooperation of the slider and the slide groove. The base 9 can slide closer to or away from the conductive bar 14. When the base 9 slides closer to the vertical bar 4, it is away from the conductive bar 14; when the base 9 slides away from the vertical bar 4, it is closer to the conductive bar 14. During the sliding process of the base 9, the second contact end 8 of the plug-in bar 7 is always in contact with the first sliding surface 10 of the conductive bar 14.

[0030] Preferably, a protrusion for forming the second contact end 8 is provided on the plug strip 7 near the conductive strip 14 , and the protrusion always abuts against the first sliding surface 10 of the conductive strip 14 during the sliding process with the base 9 , thereby ensuring reliable electrical connection.

[0031] Preferably, the first sliding surface 10 is parallel to the sliding direction of the base 9 .

[0032] In an optional embodiment, the vertical row 4 has a second sliding surface 5 , the second sliding surface 5 is parallel to the sliding direction of the base 9 , and the first contact end 6 can slide along with the base 9 until it contacts the second sliding surface 5 .

[0033] When the base 9 slides close to the vertical row 4 until the first contact end 6 contacts the second sliding surface 5, the base 9 has not reached the limit position, and the base 9 can continue to slide. At this time, the first contact end 6 contacts the second sliding surface 5 and there is relative sliding between the two. At this time, the vertical row 4 and the plug-in strip 7 are conductive. When the base 9 slides to the limit position, the first contact end 6 keeps in contact with the second sliding surface 5. The first contact end 6 and the second sliding surface 5 in this solution have matching redundancy. Within a certain sliding distance of the base 9, the vertical row 4 and the plug-in strip 7 can maintain reliable electrical connection, avoiding the situation where the vertical row 4 and the plug-in strip 7 have poor contact due to the base 9 not sliding into place.

[0034] Preferably, a protrusion for forming a first contact end 6 is provided on the plug strip 7 near the vertical row 4 , and the protrusion always abuts against the second sliding surface 5 of the vertical row 4 during the sliding process with the base 9 , thereby ensuring reliable electrical connection.

[0035] In an optional embodiment, the extension strip 7 is rotatably matched with the base 9, and the first contact end 6 and the second contact end 8 are respectively located on both sides of the rotation axis of the extension strip 7. The extension strip 7 is provided with an inclined surface, and the inclined surface is located on the side of the first contact end 6 away from the second contact end 8; when the base 9 slides in a direction close to the vertical row 4 and the vertical row 4 abuts against the inclined surface, the extension strip 7 rotates until the second contact end 8 abuts against the first sliding surface 10.

[0036] A buckle is provided on the base 9, and the strip 7 is embedded in the buckle. The buckle can produce elastic deformation so that the strip 7 can rotate. In this solution, multiple strips 7 are arranged in each column at intervals, and the multiple strips 7 in each column are against the same second sliding surface 5 and the same first sliding surface 10.

[0037] When the base 9 slides to the inclined surface and first abuts against the front end of the vertical row 4, the front end of the vertical row 4 acts on the inclined surface to cause the strip 7 to rotate. The closer the base 9 is to the vertical row 4, the greater the rotation angle of the strip 7. At this time, the pressing force between the second contact end 8 and the first sliding surface 10 is greater. When it rotates to the point where the first contact end 6 abuts against the second sliding surface 5, the strip 7 stops rotating and only slides with the base 9. At this time, the second contact end 8 abuts against the first sliding surface 10, and the first contact end 6 abuts against the second sliding surface 5, thereby ensuring reliable electrical connection among the vertical row 4, the strip 7 and the conductive row 14.

[0038] In this solution, the pressing force between the plug-in strip 7 and the conductive strip 14 is relatively small when the plug-in strip 7 is not in contact with the vertical strip 4 , and the friction between the two is relatively small, so as to facilitate the sliding fit between the plug-in strip 7 and the conductive strip 14 .

[0039] In an optional embodiment, the linkage assembly 3 includes a transmission rod 13 and a connecting rod 11, the transmission rod 13 is rotatably matched with the drawer body 1, the transmission rod 13 is radially provided with a hinge portion 12, one end of the connecting rod 11 is hinged to the hinge portion 12, and the other end is hinged to the plug-in assembly 2.

[0040] The function of the linkage assembly 3 is to drive the base 9 to slide. Specifically, the transmission rod 13 rotates, driving the connecting rod 11 to convert the rotation of the transmission rod 13 into the sliding of the base 9. The operator can realize the contact or separation of the plug row 7 and the vertical row 4 by rotating the transmission rod 13. The transmission rod 13 has rotation damping, thereby limiting the base 9.

[0041] In an optional embodiment, at least two connecting rods 11 are axially spaced apart from each other on the transmission rod 13 , and any of the connecting rods 11 is hinged to the plug-in assembly 2 .

[0042] In an optional embodiment, the linkage assembly 3 further includes a vertical rod 15 , the vertical rod 15 is meshed with the transmission rod 13 via a bevel gear, and the rotation axis of the vertical rod 15 is parallel to the sliding direction of the drawer body 1 .

[0043] The function of the vertical rod 15 is to change the input direction of the rotational force of the transmission rod 13. The cabinet body of the distribution cabinet is provided with two side panels and a back panel that enclose the cabinet cavity. When the drawer body 1 is pushed into the cabinet cavity, the front panel of the drawer body 1 is located outside the cabinet cavity. The front panel of the drawer body 1 in the traditional scheme is provided with indicator lights and interactive parts, etc. The thrust end of the plug-in block in this scheme extends out of the front panel, and the operator can realize the rotation of the plug-in assembly 2 by pushing and pulling the thrust end of the plug-in block. Example

[0044] The drawer plug-in device also includes a plurality of clamping members corresponding one-to-one to the vertical rows 4 , each clamping member includes two symmetrically arranged plug-in components 2 , the linkage ends correspond one-to-one to the clamping members, and each linkage end cooperates with two plug-in components 2 .

[0045] Two plug-in components 2 form a group to form a clamping piece, and a gap is formed between the contact ends of the two plug-in components 2. When the drawer body 1 is in place, the vertical row 4 is located in the gap. When the plug-in component 2 is in the second state position, the width of the gap is greater than the thickness of the vertical row 4. When the plug-in component 2 is converted from the second state position to the first state position, the two plug-in components 2 rotate toward each other under the action of the same plug-in block. When the plug-in component 2 rotates to the limit position, the two contact ends contact the vertical row 4 from both sides to form a clamp.

[0046] The plug-and-push block in the present embodiment comprises a main block and a plurality of sub-blocks, the first connecting rod 11 is hinged to the main block, and the plurality of sub-blocks are fixedly arranged on the main block at intervals perpendicular to the first direction, and the end of each sub-block forms a linkage end, and each linkage end has two symmetrically arranged sliding surfaces, and each sliding surface corresponds to a plug-in assembly 2, that is, each sub-block corresponds to a clamping member.

[0047] The power distribution cabinet provided by the utility model comprises any one of the drawer plug-in devices described above.

[0048] It should be noted that any of the above embodiments is illustrative of the present invention rather than limiting the present invention, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words primary, secondary, previous, and next, etc. does not indicate any order. These words may be interpreted as names.

[0049] The above implementation modes are only suitable for illustrating the present invention, but not for limiting the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A drawer plug-in device for a power distribution cabinet, characterized in that: It comprises a drawer body (1), a plug-in assembly (2) and a linkage assembly (3); The plug-in component (2) is slidably matched with the drawer body (1); the plug-in component (2) has a first contact end (6); the linkage component (3) has a linkage end; when the drawer body (1) is in a matched position, the linkage end can enable the plug-in component (2) to slide until the first contact end (6) contacts the vertical row (4); the vertical row (4) can be electrically connected to an electrical component in the drawer body (1) through the plug-in component (2).

2. The drawer plug-in device according to claim 1, characterized in that: A conductive row (14) is provided in the drawer body (1), and the plug-in assembly (2) further comprises a second contact end (8), wherein the second contact end (8) can be slidably matched with the conductive row (14).

3. The drawer plug-in device according to claim 2, characterized in that: The plug-in assembly (2) comprises a plug strip (7) and a base (9); the base (9) is slidably matched with the drawer body (1); the plug strip (7) is arranged on the base (9) and slides with the base (9); along the sliding direction of the base (9), the first contact end (6) and the second contact end (8) are located on the plug strip (7); the conductive strip (14) has a first sliding surface (10); the second contact end (8) abuts against the first sliding surface (10), and the second contact end (8) and the first sliding surface (10) can slide relative to each other.

4. The drawer plug-in device according to claim 3, characterized in that: The vertical row (4) has a second sliding surface (5), the second sliding surface (5) is parallel to the sliding direction of the base (9), and the first contact end (6) can slide along with the base (9) until it contacts the second sliding surface (5).

5. The drawer plug-in device according to claim 3, characterized in that: The plug strip (7) is rotatably matched with the base (9), the first contact end (6) and the second contact end (8) are respectively located on both sides of the rotation axis of the plug strip (7), and the plug strip (7) is provided with an inclined surface, which is located on the side of the first contact end (6) away from the second contact end (8); when the base (9) slides in a direction close to the vertical row (4) and the vertical row (4) abuts against the inclined surface, the plug strip (7) rotates until the second contact end (8) abuts against the first sliding surface (10).

6. The drawer plug-in device according to claim 2, characterized in that: The linkage assembly (3) comprises a transmission rod (13) and a connecting rod (11); the transmission rod (13) is rotatably matched with the drawer body (1); the transmission rod (13) is provided with a hinge portion (12) in a radial direction; one end of the connecting rod (11) is hinged to the hinge portion (12), and the other end is hinged to the plug-in assembly (2).

7. The drawer plug-in device according to claim 6, characterized in that: At least two of the connecting rods (11) are arranged on the transmission rod (13) at intervals along the axial direction of the transmission rod (13), and any one of the connecting rods (11) is hinged to the plug-in assembly (2).

8. The drawer plug-in device according to claim 6, characterized in that: The linkage assembly (3) further comprises a vertical rod (15), wherein the vertical rod (15) is meshed with the transmission rod (13) via a bevel gear, and the rotation axis of the vertical rod (15) is parallel to the sliding direction of the drawer body (1).

9. The drawer plug-in device according to any one of claims 3 to 5, characterized in that: The plug-in assembly (2) comprises a plurality of plug-in connectors, each of the plug-in connectors corresponds to a vertical row (4) and a conductive row (14), and each of the plug-in connectors comprises two of the plug-in rows (7).

10. A power distribution cabinet, characterized in that: It comprises a drawer plug-in device as described in any one of claims 1 to 9.

Images