CN201115122Y - Stop assembly - Google Patents

Abstract

The utility model discloses a backstop component, which is used for positioning a circuit board on a shell, wherein the circuit board is displaced along a combining direction or a releasing direction relative to the shell so as to be mutually clamped or disassembled with the shell. The stopping structure comprises a fixed part, a movable part and a positioning part. The positioning piece is arranged on one side surface of the circuit board, and the fixing piece is arranged in the shell and can be used for the positioning piece to pass through along the combining direction in a one-way mode, so that the positioning piece is stopped at one end of the fixing piece, and the circuit board shell is positioned. The movable piece can make the fixed piece stretch and deform, so that the positioning piece can reversely pass through the fixed piece along the releasing direction to disassemble the circuit board. Thus, the circuit board can be quickly and stably fixed on the shell or detached from the shell.

Description

stopper assembly

technical field

The utility model relates to a stop assembly, in particular to a stop assembly which does not need to be locked by bolts.

Background technique

With the continuous vigorous development of technology and information, computer equipment has become a very popular electronic device. The computer equipment currently on the market, whether it is a desktop computer, a notebook computer or a server, must be equipped with a motherboard inside, as the core component of the computer system, so that it is electrically connected to the central processing unit on the motherboard. Computer peripheral hardware such as processor (CPU), memory module, control adapter card (PCI card), etc., can smoothly execute the preset functions of peripheral hardware.

A common way to fix the mainboard is to set several conductive copper bosses (boss) on the housing of the computer device as fixing members, and several through holes corresponding to the bosses are opened on the mainboard. The mainboard is placed on the copper pillars, and an appropriate distance is kept between the shell and the mainboard, and then a plurality of bolts are respectively passed through the through holes of the mainboard, and locked on the copper pillars, so that the mainboard is formed by the copper pillars. A suspension function to avoid short circuit caused by direct contact between the solder pins on the back of the motherboard and the shell.

The traditional method of locking and fixing the mainboard with copper pillars requires the user to repeatedly lock and remove the bolts one by one during the process of loading and unloading the mainboard. The operation is quite time-consuming and complicated, and is not practical convenient. Moreover, the current electronic devices are required to be light, thin and small. Excessive copper pillars will occupy too much area of the main board, resulting in difficulty in circuit layout on the main board, and the overall size of the electronic device cannot be miniaturized.

Therefore, in recent years, a thumb screw (thumb screw) that can be directly rotated by fingers has been developed as a positioning member for fixing the motherboard, so as to greatly reduce the number of copper pillars used, thereby solving the problem of using copper pillars to lock and fix the motherboard. generated problems. Please refer to FIG. 1 , which is a three-dimensional exploded view of a thumb screw, a circuit board and a case in the prior art. The casing 10 has several positioning columns 11 and a screw hole 61 , wherein a groove 12 is defined in the middle of each positioning column 11 . The circuit board 20 defines a plurality of positioning holes 21 corresponding to the positioning posts 11 . Each positioning hole 21 is gourd-shaped and has a wide section 22 and a narrow section 23 , and the front end of the positioning post 11 passes through the positioning hole 21 through the wide section 22 . In this way, the circuit board 20 can slide on the casing 10 by means of the positioning post 11 , and the narrow section 23 of the positioning hole 21 is inserted into the groove 12 of the positioning post 11 . Afterwards, as long as the thumb screw 60 passes through the circuit board 20 and is screwed into the screw hole 61 , the circuit board 20 can be fixed on the casing 10 .

However, the use of thumb screws to fix the main board is still a screw locking method. The process of loading and unloading the main board is complicated. Increase in costs and labor costs. Therefore, how to truly fix the installation position of the mainboard in a screwless manner and facilitate the user to quickly and conveniently assemble and disassemble the mainboard are issues that need to be solved urgently by technical personnel in related fields.

Contents of the invention

The purpose of this utility model is to provide a stopper assembly, so as to improve the prior art to install and disassemble the main board by screwing, which leads to the inability to miniaturize the volume of the electronic device, and the loading and unloading process is too complicated and time-consuming, which makes the material cost and labor cost too high. High, and inconvenient for users to operate and other issues.

In order to achieve the above object, the utility model provides a stopper assembly for positioning a circuit board on a housing, wherein the circuit board is displaced relative to the housing along a combining direction or a releasing direction, so as to Interlock or disassemble with the shell. The stop assembly includes a fixed part, a movable part and a positioning part. The fixing part is fixed on the casing, and the fixing part has two suspended and opposite elastic arms, and one side of the two elastic arms forms a claw opening. The movable part has two opposite guide slopes, and the movable part movably contacts with the two elastic arms of the fixed part through the two guide slopes, so as to displace relative to the fixed part, deform the two elastic arms and expand the width of the jaw. The positioning part is installed on the side of the circuit board corresponding to the movable part, and the width of the positioning part is larger than the width of the jaw of the fixing part. When the locator moves along with the circuit board along the joint direction, the locator pushes against the deformation of the jaws of the two elastic arms, and moves to the top of the jaws, and by means of the recovery deformation of the two elastic arms, the claws of the two elastic arms The top of the mouth rests against the locator. In this way, the circuit board can be fixed on the casing.

Therefore, the effect of the present invention is that the circuit board of the electronic device can be quickly and stably installed on the casing by means of the blocking assembly. In other words, due to the special design of the stopper assembly of the present invention, when installing the circuit board on the housing, the circuit board can be firmly mounted on the housing by pushing the circuit board along the coupling direction. In this way, not only does it not need to be screwed to lock or disassemble multiple screws, but also the circuit board can be easily and quickly loaded and unloaded, thereby reducing the labor cost required for locking, and at the same time achieving a bolt-free ( screwless) way to fix the circuit board.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1 is a three-dimensional exploded schematic diagram of a thumb screw, a circuit board and a casing in the prior art;

Fig. 2 is an exploded view of the three-dimensional structure of an embodiment of the utility model;

Fig. 3 is the schematic diagram of the three-dimensional structure of the circuit board of the present invention when it is installed;

Fig. 4 is the schematic diagram of the three-dimensional structure of the circuit board of the present invention in the combined state;

Fig. 5 is a schematic diagram of the circuit board of the present invention in a released state.

Among them, reference signs:

10 Chassis

11 positioning column

12 grooves

20 motherboard

21 positioning hole

22 wide section

23 narrow section

60 thumb screws

61 screw holes

100 electronic devices

110 shell

111 binding column

120 circuit board

121 binding holes

121a Large hole

121b small hole

122 holes

130 positioning parts

132 bumps

200 stop assembly

210 shell

212 elastic arm

214 chute

220 moving parts

222 binding holes

224 Pivot

226 convex rib

230 hook

d ₁ , d ₂ , d ₃ width

Detailed ways

The stop assembly provided by the present invention is applied to electronic devices, and the electronic devices include but not limited to desktop computers, notebook computers, servers and other computer devices with circuit boards for performing operations. The accompanying drawings are provided for reference and illustration only, and are not intended to limit the present utility model.

Please refer to FIG. 2 , which is an exploded view of the three-dimensional structure of an embodiment of the present invention. The stop assembly 200 of the present invention is applied to an electronic device 100 , and the stop assembly 200 is used to abut against a movable positioning member 130 . Wherein, the electronic device 100 has a housing 110 and a circuit board 120 , and the positioning member 130 is disposed on a side of the circuit board 120 corresponding to the housing 110 . The casing 110 is provided with at least one coupling column 111, and the circuit board 120 is provided with at least one coupling hole 121, wherein the coupling column 111 is a cylindrical structure with a tip size slightly larger than the cylinder size, and the coupling hole 121 is a large hole 121a and a small hole 121b extending from the periphery of the large hole constitutes a gourd-shaped structure. The front end of the coupling post 111 passes through the coupling hole 121 through the large hole 121a. At this time, the circuit board 120 can slide on the casing 110 by means of the coupling post 111, and the small hole 121b of the coupling hole 121 is inserted into the groove at the top of the coupling post 111. . In this way, the circuit board 120 can be displaced relative to the housing 110 along the coupling direction or the releasing direction, so that the coupling posts 111 and the coupling holes 121 are coupled with each other, and the circuit board 120 is clamped or detached from the housing 110 .

A hole 122 may also be provided on the circuit board 120, and one end of the positioning member 130 has a protrusion 132 corresponding to the hole 122, so that the protrusion 132 and the hole 122 are mutually fitted, so that the positioning member 130 is fixed on the circuit board 120 corresponding to One side of the housing 110.

Please continue to refer to FIG. 2 , the stop assembly 200 includes a fixed part 210 and a movable part 220 . The fixing part 210 is fixed on the housing 110, and the fixing part 210 has two elastic arms 212 suspended and separated by a first width d1, the two elastic arms 212 normally maintain the first width _d1 , and the two elastic arms 212 can withstand a force produce elastic deformation. Wherein, the first width d ₁ is smaller than the width d ₃ of the positioning member 130 . In an embodiment of the present invention, the suspended end of the two elastic arms 212 may be formed as a claw, wherein the width of the claw is smaller than the width d ₃ of the positioning member 130 . In another embodiment of the present invention, the hook 230 on the housing 110 can also be used to hook the fixing member 210 so that the fixing member 210 is fixed on the housing 110 .

The above-mentioned fixing member 210 may further include two slide slots 214 respectively disposed on the two elastic arms 212 .

As shown in FIG. 2 , the aforementioned movable element 220 is movably disposed on the fixed element 210 , and the movable element 220 has a second width d ₂ , wherein the second width d ₂ is greater than the first width d1 . In an embodiment of the present invention, the movable part 220 may further include two opposite guiding slopes 222 , and the two guiding slopes 222 are respectively provided with a pivot 224 on one side corresponding to the sliding groove 214 . The two pivots 224 are respectively inserted in the two slide slots 214 to guide the movable part 220 to move relative to the fixed part 210 , and make the movable part 220 contact the two elastic arms 212 through the two guiding slopes 222 . The movable part 220 may further include a convex rib 226 adjacent to one end of the two guiding slopes 222 to drive the movable part 220 to move relative to the positioning part 210 .

Please refer to FIG. 3 , which is a three-dimensional structural diagram of the circuit board of the present invention in an installed state. When the positioning member 130 is displaced along the connecting direction with the circuit board 120 , since the width d ₃ of the positioning member 130 is greater than the first width d ₁ of the two elastic arms 212 , the positioning member 130 pushes away from the two elastic arms 212 and deforms.

Please continue to refer to FIG. 4 , which is a schematic diagram of the three-dimensional structure of the circuit board of the present invention in a combined state. As shown in FIG. 4 , the positioning member 130 will continue to move toward the combining direction along with the circuit board 120 until the combining holes 121 and the combining posts 111 are combined with each other. More specifically, when the positioning member 130 continues to move toward the joining direction to the jaws of the two elastic arms 212, since the width _d3 of the positioning member 130 is greater than the width of the claws of the two elastic arms 212, the positioning member 130 will The two elastic arms 212 are pushed away to deform and move to the top of the two elastic arms 212 , that is, to move to the top of the jaws of the two elastic arms 212 . At this time, by virtue of the recovery deformation of the two elastic arms 212 , the top ends of the two elastic arms 212 (or the top ends at the jaws of the two elastic arms 212 ) abut against the positioning member 130 and limit the positioning member 130 at the same time. In this way, the circuit board 120 can be fixed on the casing 110 .

Please continue to refer to FIG. 5 , which is a schematic diagram of the circuit board of the present invention in a released state. As shown in FIG. 5 , to disassemble the circuit board 120 from the housing 110 , the movable part 220 is subjected to an external force to move toward the releasing direction. At this time, since the second width d ₂ of the movable member 220 is greater than the first width d ₁ , the movable member 220 will push against the two elastic arms 212 and deform to expand the two elastic arms 212, and deform the first width d ₁ to a third width. When the third width is larger than the width d ₃ of the positioning member 130 , the positioning member 130 can be displaced along the release direction and disengage from the top ends of the jaws of the two elastic arms 212 . In this way, the circuit board 120 can be detached from the casing 110 . In an embodiment of the present invention, the rib 226 of the movable part 220 can be subjected to an external force to drive the movable part 220 to move toward the releasing direction.

The stopper assembly disclosed by the utility model provides a stopper fixing function, so that the circuit board can be stably installed on the casing, and does not need to fix the circuit board with multiple sets of bolts, so that the circuit board can be fixed without bolts. Furthermore, through the special design of the stopper assembly of the present invention, when installing the circuit board on the housing, as long as the circuit board is pushed along the connecting direction, the circuit board can be firmly installed on the housing. In this way, not only does it not need to be screwed to lock or remove multiple screws, but also the circuit board can be easily and quickly loaded and unloaded, which greatly improves the convenience of operation and reduces the manpower required for locking cost.

Certainly, the utility model also can have other various embodiments, under the situation of not departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and distortions according to the utility model, but these Corresponding changes and deformations should all belong to the scope of protection of the appended claims of the utility model.

Claims (10)

1. A stopper assembly, which locates a circuit board on a housing, wherein the circuit board is displaced relative to the housing along a combining direction or a releasing direction, and is locked or disassembled with the housing. Characteristically, the stopper assembly includes: A fixing piece is arranged on the housing, the fixing piece has two suspended and opposite elastic arms, one side of the two elastic arms forms a claw opening; A movable part, the movable part has two opposite guide slopes, and the movable part uses the two guide slopes to movably contact the two elastic arms of the fixed part which can be deformed to expand the width of the jaw; and A locating piece is installed on the side of the circuit board corresponding to the movable piece, the width of the locating piece is larger than the width of the jaw of the fixing piece, and the locating piece displaced along the combining direction pushes against the two elastic The claw of the arm deforms and moves to the top of the claw, and the claw abuts against the locating member and limits the locating member, fixing the circuit board on the housing. 2. The stopper assembly according to claim 1, wherein the fixed part has two slide grooves for guiding the displacement of the movable part relative to the fixed part, respectively arranged on the two elastic arms, and the two Each of the guide slopes is respectively provided with a pivot on one side corresponding to the chute, and each of the pivots is inserted in the two chute respectively. 3. The stopper assembly according to claim 1, wherein the two elastic arms are separated by a first width, and the two elastic arms maintain the first width normally. 4. The stop assembly according to claim 3, wherein there is a second width between the two guiding slopes, and the first width is smaller than the second width. 5. The stopper assembly according to claim 4, wherein the two guiding slopes of the movable part are pushed against the two elastic arms of the fixed part to deform and spread apart—the first width is deformed into third width. 6. The stopper assembly according to claim 5, wherein the third width is larger than the width of the positioning member released from the electronic device. 7. The stopper assembly according to claim 1, wherein the movable member further comprises a rib disposed adjacent to one end of the two guiding slopes to drive the movable member to displace along the releasing direction. 8. The stopper assembly according to claim 1, wherein the housing is further provided with at least one hook to hook the fixing member so that the fixing member is fixed to the hook on the housing. 9. The stopper assembly according to claim 1, wherein the locating member further comprises a protrusion, and one side of the circuit board is provided corresponding to the protrusion and interfitted with the protrusion, so that the The positioning part is fixed on a hole on the circuit board. 10. The stopper assembly according to claim 1, wherein the circuit board includes at least one coupling hole, and the housing has at least one coupling hole, so that the circuit board is clamped on the coupling hole. Shell binding posts.

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