CN105101731B - A kind of wiring board subrack - Google Patents

Abstract

A circuit board insertion box, including left, right, upper, lower and rear side panels, buckle slats; the upper and lower side panels are oppositely provided with a number of circuit board slots, the number of buckle slats and the number of circuit boards The number of slots is equal; the upper and lower side plates are also provided with a number of buckle slat pressing devices, and the buckle slat pressing device includes a pressing plate, a spring seat, a spring shaft and a compression spring; one end of the spring seat It is fixedly connected with the inner surface of the upper side plate or the lower side plate, and the other end is provided with a round hole adapted to the front end of the spring shaft; the front end of the spring shaft passes through the round hole on the other end of the corresponding spring seat and connects with the pressure plate One end of the compression plate is fixedly connected, and the front and rear ends of the compression spring are respectively against the rear end of the spring seat and the spring shaft; On the side; and the other end of the buckle slat crosses the corresponding circuit board main body and is hinged with the corresponding upper side plate or lower side plate, and the inner side of the buckle slat and the front side of the circuit board main body abut together.

Description

A circuit board box

technical field

The invention relates to a circuit board insertion box.

Background technique

The circuit board box is a common part used to install circuit boards, including left side panels, right side panels, upper side panels and lower side panels. The front ends of the left and right side panels are folded outward to form the fixed side of the box. The upper and lower side plates are opposite to each other with a number of front and rear circuit board insertion slots, and the front ends of the upper and lower side plates are opposite to each other with protruding wire binding pieces for fixing the wire routing. A number of heat dissipation vent holes are also provided on the board surface of the board, and a buckle structure for fixing the circuit board is also provided on the inner board surface of the front end of the upper and lower side boards. The buckle structure includes buckle slats, buckle One end of the slat is connected to the upper and lower side plates with rivets, the buckle slat is fixed on the inner surface of the upper and lower side plates by the rivet connection structure, and the inner surface of the other end of the buckle slat is connected to the main body of the circuit board The front sides are connected against each other. Pull the other end of the buckle slat with your fingers to rotate the buckle slat so that the buckle slat rests on the main body of the circuit board, so that the main body of the circuit board can be fixed, or the buckle slat and the circuit The board body is separated for easy removal of the circuit board. The existing problems are: the rotation of the buckle slats is relatively laborious, and the riveting structure fixing the buckle slats is prone to loosening after being pulled many times, and the reliability is relatively poor; at the same time, in order to make the riveting structure have the function of fixing the circuit board The riveting structure that makes the buckle slats and the upper or lower side plates fixedly connected also needs to ensure that the buckle slats have a certain pressure on the inner surface of the upper and lower side plates [neither too large nor too small ], so the requirements for the riveting process are high, which increases the difficulty of manufacturing the circuit board box.

Contents of the invention

The main purpose of the present invention is to provide a circuit board sub-box with simple structure, convenient use and high reliability.

The technical solution used in the present invention is: a circuit board box, including left side board, right side board, upper side board, lower side board, rear side board and buckle slats; The outer edge forms the left installation edge and the right installation edge; the inner panels of the upper and lower side panels are provided with a number of circuit board slots facing each other, and correspondingly, the front ends of the upper and lower side panels are respectively provided with a number of upper binding wires extending forward. The number of buckle slats is equal to the number of circuit board slots; there are also a number of buckle slat pressing devices on the upper and lower side plates, and each buckle slat is pressed The device corresponds to a buckle slat; the buckle slat pressing device includes a pressing plate, a spring seat, a spring shaft and a compression spring; the diameter of the front end of the spring shaft is less than the diameter of the rear end of the spring shaft; one end of the spring seat and The inner surface of the upper side plate or the lower side plate is fixedly connected, and the other end of the spring seat is provided with a round hole matching the front end of the spring shaft; the front end of the spring shaft first passes through the compression spring, and then passes through the corresponding spring seat and the other The round hole on one end is fixedly connected with one end of the pressure plate, and the front and rear ends of the compression spring respectively abut against the spring seat and the rear end of the spring shaft; One end of the extension end is extended to form an extension end, and the rear side of the extension end is pressed against the front side of the buckle slat under the action of the compression spring; while the other end of the buckle slat passes over the back of the corresponding circuit board main body and the corresponding upper side plate Or the lower side plate is hinged, and the part near the spring seat on the inner side of the buckle slat is pressed against the front side of the main body of the circuit board under the action of the extension end.

Here, the main body of the circuit board refers to a board body for setting various components on the circuit board. The upper and lower ends of the main body of the circuit board are respectively inserted into the circuit board slots on the upper and lower side plates, and the front end of the main body of the circuit board is located outside the circuit board slots. When the circuit board is inserted into the circuit board slot or when the circuit board is removed from the circuit board slot, the pressing plate is first turned away, and then the buckle slats are turned away. After inserting the circuit board into the circuit board slot, first turn the buckle strip to the position connected to the main body of the circuit board, then pull the pressing plate forward and turn it so that the rear side of the extension end rests on the buckle On the slat, after letting go like this, the pressing member will pull the buckle slat to the main body of the circuit board and tightly abut against the front end of the main body of the circuit board, thereby stably fixing the circuit board on the installation position. The invention has the advantages of simple structure, convenient use and high reliability.

Preferably, the left side panel, the right side panel and the rear side panel have an integrated structure; the left, right and rear ends of the upper and lower side panels are respectively turned outward to form the upper side panel fixed edge, the lower side panel fixed edge, the upper side The fixed edge of the plate and the fixed edge of the lower side plate are fixedly connected with the left side plate, the right side plate and the rear side plate. The left side panel, right side panel and rear side panel have an integrated structure [including the left installation side and the right installation side], which means that the left side panel, right side panel and rear side panel are stamped from the same steel plate; the upper and lower sides The fixed side of the plate can be fixedly connected with the left, right and rear side plates by riveting structure, spot welding structure, welding structure or thread structure. In this preferred solution, the circuit board sub-box has a simple structure, is easy to process and manufacture, and has high rigidity.

Preferably, the outer surfaces of the upper and lower side plates are provided with rib structures running left and right. The reinforcing rib structure can be a protrusion produced by stamping the upper and lower side plates, or it can be a channel steel, square pipe and other shaped steel parts fixed on the outer surfaces of the upper and lower side plates. In this preferred solution, the rigidity of the circuit board sub-box is high and the service life is long.

As a preference, a section of screw rod extends forward from the front end of the spring shaft, the diameter of the screw rod is smaller than the diameter of the front end of the spring shaft, and the buckle slat pressing device also includes a nut adapted to the screw rod; correspondingly A light circular hole adapted to the screw rod is provided on the ground pressing plate, and the pressing plate is sheathed and fixed on the screw rod with nuts. This preferred solution has simple structure, easy processing and manufacturing, and convenient use and maintenance.

As a preference, the other end of the buckle slat is provided with a connecting cylinder, correspondingly, the upper side plate and the lower side plate are provided with a connecting round hole adapted to the connecting cylinder, and the connecting cylinder and the upper side plate or the lower side The connecting round holes on the board are connected. Wherein, the connecting cylinder on the buckle slat can be fixedly connected with the buckle slat and hinged with the connection round hole, so that the buckle slat can rotate around the connection round hole, thereby realizing the buckle slat and the upper side plate or The hinge of the lower side plate; the connecting cylinder on the buckle slat can also be fixedly connected with the connection round hole and hinged with the buckle slat, so that the buckle slat can also be rotated around the connection round hole, so as to realize the buckle The hinge of the slat and the upper side plate or the lower side plate; the connecting cylinder on the buckle slat can also be a cotter pin, which can also make the buckle slat rotate around the connection hole, thereby realizing the buckle slat and the upper Hinge of side or lower side panels. This preferred solution has simple structure, easy processing and manufacturing, and low processing and manufacturing costs.

As a preference, the front side of the end where the buckle slat on the upper side plate is connected to the extension end of the corresponding pressing plate is provided with an anti-off notch near the upper side plate, and the corresponding extension end is provided with an anti-off The anti-off protrusions with gap fit; the front side of the end where the buckle slat on the lower side plate is connected to the extension end of the corresponding pressing plate is provided with an anti-off notch near the lower side plate, and the corresponding extension end is provided with an anti-off protrusion. An anti-off protrusion that matches the anti-off notch is provided. This preferred solution can effectively prevent the separation of the pressing plate and the buckle strip during use, thereby improving the reliability of the present invention.

Preferably, both the upper and lower wire binding pieces are aligned with the corresponding circuit board slots, and the lower wire binding piece first extends obliquely forward and downward from the front edge of the lower side plate, and then extends horizontally forward. Further preferably, the front ends of the upper and lower wire binding pieces are bent upwards; the free ends of the upwardly bent parts of the upper and lower wire binding pieces are bent horizontally in the direction of the upper and lower side plates, and the front ends of the lower wire binding pieces The part bent horizontally in the direction of the lower side plate at the free end of the upwardly bent part is lower than the inner plate surface of the lower side plate. This preferred solution is convenient for pulling and plugging circuit boards and routing and bundling of circuits, and the circuit board insertion box is convenient to use.

As a preference, several pairs of protrusions protruding inward are punched on the upper and lower side plates. The distance between the inner edges of these protrusion pairs is greater than the thickness of the circuit board body. These protrusion pairs are divided into several forward and backward direction array, the space between the inner edges of the protrusions of the same array constitutes the circuit board slot. This preferred solution has simple structure, high rigidity and easy processing and manufacturing.

Preferably, the protrusions constituting the pair of protrusions are arc-shaped protrusions. This preferred solution has a simple structure and is easy to process and manufacture.

Preferably, a circuit board positioning notch is provided at the part where the buckle slat and the front side of the main body of the circuit board abut against each other, and an elastic element is fixed on the positioning notch, and the front surface of the main body of the circuit board leans against the elastic element. In this preferred solution, utilizing the deformation of the elastic element, the buckle slats can stably fix the circuit board to prevent the circuit board from shifting.

To sum up, the beneficial effects brought by the present invention are: simple structure, convenient use, high reliability and long service life.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is a structural schematic diagram of another perspective of the present invention [the buckle lath pressing device is not drawn];

Fig. 3 is the structural enlarged schematic view of I place in Fig. 1;

Fig. 4 is a schematic diagram of the buckle slat pressing device.

detailed description

The technical solution of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment one:

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention

Including left side panel 1, right side panel 2, upper side panel 3, lower side panel 4, rear side panel 5 and buckle slats 6; Side 1.1, right installation side 2.1, left installation side 1.1 and right installation side 2.1 are all equipped with long holes for installation; the inner panels of the upper and lower side panels 3 and 4 are oppositely provided with a number of circuit board slots, correspondingly upper and lower The front ends of the side plates 3 and 4 are respectively provided with several upper wire binding pieces 3.1 and lower wire binding pieces 4.1 extending forward; the number of buckle slats 6 is equal to the number of circuit board slots; 3 and 4 are also provided with a number of buckle slat pressing devices 7, and each buckle slat pressing device 7 corresponds to a buckle slat 6; the buckle slat pressing device 7 includes a pressing Plate 7.1, spring seat 7.2, spring shaft 7.3 and compression spring 7.4; the diameter of the front end of the spring shaft is smaller than the diameter of the rear end of the spring shaft; one end of the spring seat 7.2 is fixedly connected to the inner surface of the upper or lower side plate, and the spring seat 7.2 The other end of the spring shaft is provided with a round hole adapted to the front end of the spring shaft; the front end of the spring shaft 7.3 passes through the compression spring 7.4 first, then passes through the round hole on the other end of the corresponding spring seat and is fixedly connected with one end of the pressure plate , the front and rear ends of the compression spring 7.4 are respectively against the rear ends of the spring seat 7.2 and the spring shaft 7.3; The rear side of the end 7.11 leans against the front side of the buckle slat 6 under the action of the compression spring; while the other end of the buckle slat 6 passes over the corresponding circuit board main body and the corresponding upper side plate or lower side plate Hinged, the part of the inner side of the buckle slat 6 close to the spring seat abuts against the front side of the circuit board main body 8 under the action of the extension end 7.11.

Wherein the spring seat 7.2 can be welded with the upper side plate or the lower side plate, and can also be fixedly connected with the upper side plate or the lower side plate through a bolt structure. The spring seat 7.2 of the present embodiment is welded with the upper side plate and the lower side plate. In addition, a concave cavity is provided on the rear side of the spring seat 7.2 in this embodiment, and the front end of the compression spring 7.4 abuts against the bottom of the cavity, which is beneficial to improve the compactness of the structure.

As a preference, the left side panel 1, the right side panel 2 and the rear side panel 5 in this embodiment are of an integrated structure; the left, right and rear ends of the upper and lower side panels 3, 4 are turned outward respectively to form the fixed side of the upper side panel 3.2, the fixed edge 4.2 of the lower side plate, the fixed edge 3.2 of the upper side plate and the fixed edge 4.2 of the lower side plate are fixedly connected with the left side plate 1, the right side plate 2, and the rear side plate 5. In this embodiment, the fixed edge 3.2 of the upper side plate and the fixed edge 4.2 of the lower side plate are connected with the left side plate 1, the right side plate 2 and the rear side plate 5 by riveting. In addition, the outer surfaces of the upper and lower side plates 3 and 4 are provided with a left-right rib structure, and the rib structure in this embodiment consists of two channel steels welded on the outer surfaces of the upper and lower side plates constitute.

As a preference, a screw rod extends forward from the front end of the spring shaft 7.3 in this embodiment, and the diameter of the screw rod is smaller than the diameter of the front end of the spring shaft. Matched nut 7.5; Correspondingly, the pressing plate 7.1 is provided with a light round hole adapted to the screw rod, and the pressing plate 7.1 is sleeved and fixed on the screw rod with the nut 7.5. Further preferably, the nut 7.5 is connected to the screw rod with fine threads, and a spring washer not shown in the figure is also arranged between the nut 7.5 and the pressing plate, which can improve reliability.

As a preference, the other end of the buckle slat 6 in this embodiment is provided with a connecting cylinder 6.2, correspondingly the upper side plate 3 and the lower side plate 4 are provided with a connecting round hole adapted to the connecting cylinder 6.2, and the connecting The cylinder 6.2 links to each other with the connecting circular hole on the upper side plate 3 or the lower side plate 4 . In this embodiment, the connection cylinder 6.2 is fixedly connected with the buckle slat 6, and the position where the connection cylinder 6.2 passes through the corresponding connection hole is provided with a snap ring not shown in the figure, so that the buckle slat can go around the connection circle The holes are rotated to allow for the articulation of the snap slats and the upper or lower side panels.

As a preference, in the present embodiment, the buckle slat on the upper side plate 3 is connected to the extension end 7.11 of the corresponding pressing plate, and the front side of the end close to the upper side plate 3 is provided with an anti-off gap, and the corresponding extension end 7.11 is provided with an anti-off protrusion that matches the anti-off notch; the front side of the end that connects the buckle slat on the lower side plate 4 and the extension end 7.11 of the corresponding pressing plate is near the lower side plate 4. An anti-off notch, the corresponding extension end 7.11 is provided with an anti-off protrusion matching the anti-off notch. In use, the anti-loosening protrusion is plugged into the anti-loosening notch, which can prevent the pressing plate from being separated from the buckle slats, thereby improving reliability.

As a preference, in this embodiment, the upper and lower wire binding pieces 3.1, 4.1 are all aligned with the corresponding circuit board slots, and the lower wire binding piece 4.1 first extends obliquely forward and downward from the front edge of the lower side plate 4, and then extends horizontally forward ; The front ends of the upper and lower wire binding pieces 3.1, 4.1 are bent upwards; the free ends of the parts where the front ends of the upper and lower wire binding pieces 3.1, 4.1 are bent upward are bent horizontally in the direction of the upper and lower side plates 3 and 4, The free end of the part where the front end of the lower binding piece 4.1 is bent upwards is lower than the inner surface of the lower side plate 4 and the part that is horizontally bent in the direction of the lower side plate 4 . As preferably, the upper and lower side plates 3, 4 of the present embodiment are punched with several pairs of protrusions that protrude inward, and the distance between the inner edges of these protrusions is greater than the thickness of the circuit board body, and these protrusions For arrays that are divided into several arrays running forward and backward, the space between the inner edges of the protrusion pairs of the same array constitutes the circuit board slot. In this embodiment, the protrusions constituting the pair of protrusions are arc-shaped protrusions.

As a preference, a circuit board positioning notch is provided at the part where the buckle slat 6 and the front side of the main body of the circuit board abut against each other, and an elastic element 6.1 is fixed on the positioning notch, and the front surface of the main body of the circuit board leans against the elastic element 6.1. The elastic element 6.1 is made of rubber.

Embodiment two:

The difference between the second embodiment and the first embodiment is that the connecting cylinder in the second embodiment is a cotter pin, and there are round holes on the buckle slats that fit the cotter pins, and the cotter pins pass through the buckle slats in turn. After the corresponding round hole and the connecting round hole on the upper side plate or the lower side plate are pulled apart, the cotter pin is connected with the buckle slat and the corresponding upper side plate or lower side plate in rotation, so as to realize the buckle slat and the lower side plate. Hinge for upper or lower side panels. The specific installation details of cotter pin are because of known technology, do not repeat them here.

The specific embodiments described above are only preferred implementation modes of the present invention, and are not intended to limit the specific implementation scope of the present invention. All equivalent changes made according to the shape and structure of the present invention should be included in the scope of protection of the present invention, for example, only the buckle slat pressing device is provided on the upper side plate or the lower side plate.

Claims (6)

1. a kind of wiring board subrack, including left plate（1）, right plate（2）, epipleural（3）, lower side panel（4）, back side panel（5）With Buckle lath（6）；Left and right side plate（1、2）Outward flanging forms left installation side respectively for front end（1.1）, right installation side（2.1）； Upper and lower side plate（3、4）Inner plate surface be opposed to be provided with some wiring board slots, correspondingly upper and lower side plate（3、4）Front end difference Extension ground is provided with some upper wiring pieces forward（3.1）, lower wiring piece（4.1）；Buckle lath（6）Number and wiring board slot Number is equal, it is characterized in that：Upper and lower side plate（3、4）On be additionally provided with some buckle lath pressing devices（7）, each buckle lath Pressing device（7）With a buckle lath（6）It is corresponding；The buckle lath pressing device（7）Including pressure strip（7.1）, bullet Spring abutment（7.2）, spring shaft（7.3）And stage clip（7.4）；The diameter of spring shaft front end is less than the diameter of spring shaft rear end；Spring base （7.2）One end and the inner plate surface of epipleural or lower side panel be connected, spring base（7.2）The other end be provided with and spring shaft front end fit The circular hole matched somebody with somebody；Spring shaft（7.3）Front end initially pass through stage clip（7.4）Afterwards, the circular hole being then passed through on the corresponding spring base other end One end with pressure strip is connected afterwards, stage clip（7.4）Front and back end bear against in spring base（7.2）And spring shaft（7.3）After On end；Pressure strip（7.1）The other end a lateral corresponding buckle lath（6）One end extend to form elongated end（7.11）, Elongated end（7.11）Trailing flank buckle lath is resisted against in the presence of stage clip（6）Leading flank on；And buckle lath（6）'s The other end is hinged after crossing corresponding wiring board main body with corresponding epipleural or lower side panel, buckle lath（6）Inner side lean on The position of short round spring abutment is in elongated end（7.11）In the presence of and wiring board main body（8）Leading flank be abutted together；The bullet Spring axle（7.3）Front end extend anteriorly out one section of screw rod, the diameter of the screw rod is less than the diameter of spring shaft front end, the buckle Lath pressing device（7）Also include the nut with screw rod adaptation（7.5）；Correspondingly pressure strip（7.1）It is provided with and institute State the light circular hole of screw rod adaptation, pressure strip（7.1）It is nested with and uses nut（7.5）It is fixed on the screw rod；Buckle lath（6）'s The other end is provided with a connecting cylinder（6.2）, correspondingly epipleural（3）And lower side panel（4）It is provided with and the connecting cylinder （6.2）The connected circular hole of adaptation, the connecting cylinder（6.2）And epipleural（3）Or lower side panel（4）On connected circular hole be connected； Epipleural（3）On buckle lath and corresponding pressure strip elongated end（7.11）The leading flank of connected one end is close to epipleural （3）Position be provided with an anticreep breach, corresponding elongated end（7.11）It is provided with and the anticreep of anticreep breach cooperation is raised；Under Side plate（4）On buckle lath and corresponding pressure strip elongated end（7.11）The leading flank of connected one end is close to lower side panel （4）Position be provided with an anticreep breach, corresponding elongated end（7.11）It is provided with and the anticreep of anticreep breach cooperation is raised； Upper and lower side plate（3、4）It is inwardly protruded some right to projection that upper punching has, and these projections are more than circuit to the distance between inner edge The thickness of plate plate body, these raised arrays to being divided into some front and rear trends, the projection with an array is to the space between inner edge Form the wiring board slot.

2. a kind of wiring board subrack according to claim 1, it is characterized in that：Left plate（1）, right plate（2）And back side panel （5）It is structure as a whole；Upper and lower side plate（3、4）Outwards turnover forms epipleural fixed edge respectively left and right and rear end（3.2）, under Side plate fixed edge（4.2）, epipleural fixed edge（3.2）With lower side panel fixed edge（4.2）And left plate（1）, right plate（2）, after Side plate（5）It is connected.

3. a kind of wiring board subrack according to claim 2, it is characterized in that：Upper and lower side plate（3、4）Outer surface be provided with a left side The reinforcing rib structure of right trend.

4. a kind of wiring board subrack according to claims 1 to 3 any one, it is characterized in that：Upper and lower wiring piece（3.1、 4.1）Alignd with corresponding wiring board slot, lower wiring piece（4.1）First from lower side panel（4）Front forward downward tilt and prolong Stretch, then horizontal forward extension again；Upper and lower wiring piece（3.1、4.1）Front end be folded upward at；Upper and lower wiring piece（3.1、 4.1）The free end of part that is folded upward at of front end up and down side plate again（3、4）The horizontal bending in direction, lower wiring piece（4.1） The side plate still further below of the free end of part that is folded upward at of front end（4）The horizontal bending in direction partially below lower side panel（4）'s Inner plate surface.

5. a kind of wiring board subrack according to claims 1 to 3 any one, it is characterized in that：Form raised pair of projection For arc-shaped convex.

6. a kind of wiring board subrack according to claims 1 to 3 any one, it is characterized in that：Buckle lath（6）And circuit The position that plate main body leading flank is abutted together is provided with wiring board locating notch, fixed on locating notch to have elastic component（6.1）, Wiring board body front end face is resisted against flexible member（6.1）On.