CN102238818B - Shell clamping structure - Google Patents

Abstract

A shell clamping structure is used for being arranged between a first shell and a second shell and comprises a first clamping hook, a second clamping hook and a bidirectional fixing hook, wherein the first clamping hook and the second clamping hook respectively extend out of a first edge of the first shell and extend out of a first clamping part and a second clamping part towards the opposite direction parallel to the first edge; the bidirectional fixing hook extends out of the fixing part from the second edge of the second shell, and extends out of the first interference part and the second interference part from the fixing part along two directions parallel to the second edge; when the two-way fixing hook is squeezed or pulled by external force, the two-way fixing hook interferes with the first hook and the second hook, and the first hook and the second hook are elastically bent parallel to the first edge so as to be combined with or separated from the first hook and the second hook.

Description

Shell clamping structure

technical field

The invention relates to a clamping structure, in particular to a housing clamping structure.

Background technique

With the advancement of science and technology and the habits of users, the size of electronic products is trending toward miniaturization. However, in the field of many sophisticated electronic products, even if the goal is to reduce the size of the product by only one centimeter, it is difficult for circuit R & D engineers. Both are very challenging issues. Therefore, if the internal circuit accommodation space can be increased through the design of the product casing, it will undoubtedly make the circuit design more flexible.

Please refer to FIG. 1 . FIG. 1 is a first embodiment of a casing fastening structure in the prior art. The shell clamping structure 100 is used to be arranged between the first shell 200 and the second shell 300, and includes an upper hook 11, a lower hook 12 and a top post 13; the upper hook 11 is formed from the first shell. An upper elastic portion 111 extends vertically from the first edge 21 of the body 200 , and an upper engaging portion 112 extends along a detachment direction S parallel to the first housing 200 but perpendicular to the first edge 21 .

The lower hook 12 extends vertically from the second edge 31 of the second housing 300 to a lower elastic portion 121 , and extends in a direction opposite to the detachment direction S to a lower engaging portion 122 .

In addition, the upper engaging part 112 has an upper engaging surface 1121 and an upper introducing surface 1122, and the lower engaging part 122 has a lower engaging surface 1221 and a lower introducing surface 1222, wherein the upper engaging surface 1121 and the lower engaging surface 1221 is usually designed as a flat or barbed hook, so that the upper hook 11 and the lower hook 12 are more stable when engaging, while the upper guide surface 1122 and the lower guide surface 1222 are designed as a slope, so that the upper hook 11 and the lower hook The hook 12 is relatively labor-saving in the process of engaging.

The top column 13 extends vertically from the first edge 21 of the first housing 200. When the upper hook 11 engages with the lower hook 12, the top column 13 can just abut the lower hook 12 to avoid the upper hook 12. The hook 11 and the lower hook 12 are loosened.

In addition, please refer to FIG. 2 , which is a second embodiment of the casing fastening structure in the prior art. The shell fastening structure 400 is similar to the shell fastening structure 100 in the above-mentioned first embodiment, and also has an upper hook 41 and a lower hook 42, and the upper hook 41 is also engaged by the upper elastic part 411. part 412, the lower hook 42 is also composed of the lower elastic part 421 and the lower engaging part 422. The length of 42 matches the distance between the first housing 200 and the second housing 300. When the upper hook 41 and the lower hook 42 engage, the upper hook 41 just abuts against the second housing 300 and the lower hook 42 Just abutting against the first housing 200 can achieve a stable engaging effect.

However, no matter what kind of structure is mentioned above, there are several same disadvantages. Firstly, since the first housing 200 and the second housing 300 can only be engaged by the upper hooks 11 and 41 and the lower hooks 12 and 42, Therefore, the upper engaging surfaces 1121 and 4121 and the lower engaging surfaces 1221 and 4221 can only be designed as flat or barb-shaped. However, when the user pulls the lower hooks 12 and 42 along the detachment direction S, it is difficult to make the upper hooks The hooks 11 and 41 and the lower hooks 12 and 42 are separated from each other, which may easily cause the upper hooks 11 and 41 and the lower hooks 12 and 42 to break when they are disassembled.

In addition, since the upper elastic parts 111 and 411 and the lower elastic parts 121 and 421 are elastically bent along the detachment direction S and its opposite direction during the engaging or detaching process, the locking structures 100 and 400 of the shells When the first shell 200 and the second shell 300 are combined, in addition to the relatively thick thicknesses W1 and W2, the space required for elastic bending must also be reserved, thereby forming the first shell 200 and the second shell The space available for placing circuit boards and electronic components between the body 300 becomes smaller.

Contents of the invention

Technical problem and purpose that the present invention intends to solve:

Therefore, the main purpose of the present invention is to provide a housing clamping structure, the elastic bending direction of the hook of the housing clamping structure is parallel to the edge of the housing, and this clamping structure not only combines clamping and clamping The method is used as a clamping means, and under the premise of stability, the hook does not need to be designed as an undercut shape.

The technical means of the present invention to solve the problem:

A shell clamping structure is used to be arranged between the first shell and the second shell. The shell clamping structure includes a first hook, a second hook and a two-way fixing hook; the first hook The first elastic part extends from the first edge of the first shell to the second shell, and the first clamping part protrudes from the first elastic part toward the first direction of the second hook; the second hook The hook is a second elastic part extending from the first edge of the first housing to the second housing, and protruding from the second elastic part toward the second direction of the first hook to protrude a second clamping part, wherein, The first hook, the second hook, and the first housing define a clamping space; the two-way fixing hook extends from the second edge of the second housing to the first housing, and extends from the fixing portion along the The first interference portion extends from the second direction, and the second interference portion extends from the fixing portion along the first direction.

When the two-way fixed hook is pressed by the first external force toward the first housing, the first interference part interferes with the first clamping part, and the second interference part interferes with the second clamping part, the first locking The hook is elastically bent toward the second direction, and the second hook is elastically bent toward the first direction, so that the two-way fixed hook is accommodated in the clamping space; when the two-way fixed hook receives the second external force toward the second housing When pulling to make the first interference part interfere with the first clamping part, and make the second interference part interfere with the second clamping part, the first hook is elastically bent in the second direction, and the second hook It is elastically bent in the first direction, so that the two-way fixing hook is separated from the clamping space.

In a preferred embodiment of the present invention, the first clamping portion protrudes from the first elastic portion toward the first direction, and the first clamping portion has a first inner portion adjacent to the first housing. The inclined surface has a first outer inclined surface on the opposite side, the first inner inclined surface is inclined from the end of the first hook to the second housing, and the first outer inclined surface is inclined from the end of the first hook to the first housing ; Similarly, the second clamping portion protrudes from the second elastic portion toward the second direction, and the second clamping portion has a second inner slope adjacent to the first housing, and on the opposite side There is a second outer slope, the second inner slope is inclined from the end of the second hook toward the second casing, and the second outer slope is inclined from the end of the second hook toward the first casing.

In another preferred embodiment of the present invention, the first interfering portion extends gradually from the fixing portion along the second direction, and the second interference portion extends gradually from the fixing portion along the first direction.

In another preferred embodiment of the present invention, the first housing is provided with a plurality of grooves on the first edge adjacent to the first hook and the second hook, so as to increase the number of the first hook and the second hook. in elastic bending space.

The present invention contrasts the effect of prior art:

Compared with the conventional housing fastening structure, the present invention utilizes the first hook and the second hook to engage and clamp the two-way fixing hook, so that the first inner slope and the second inner slope can be designed as slopes instead of The well-known flat or barb shape, so it can be easily disassembled.

In addition, since the elastic bending direction of the first hook and the second hook is parallel to the edge of the shell during disassembly, compared with the conventional shell fastening structure, the internal space of the shell can be effectively reserved for Circuit board used with electronic components.

Furthermore, by opening grooves near the first hook and the second hook on the first edge, the elastic bending space of the first hook and the second hook can be increased, which is equivalent to increasing the first elastic part and the second hook. 2. The length of the elastic part is less likely to be broken due to disassembly and assembly than the conventional shell clamping structure.

The specific embodiments adopted by the present invention will be further described with the following embodiments and accompanying drawings.

Description of drawings

Fig. 1 is the first embodiment of the housing clamping structure of the prior art;

Fig. 2 is the second embodiment of the housing fastening structure of the prior art;

Fig. 3 is a schematic diagram of a disengaged state of the housing clamping structure of the present invention; and

FIG. 4 is a schematic diagram of a clamping state of the housing clamping structure of the present invention.

Detailed ways

The invention relates to a clamping structure, in particular to a housing clamping structure. A preferred embodiment is listed below to illustrate the present invention, but those skilled in the art know that this is only an example, not intended to limit the invention itself. The content of this preferred embodiment is described in detail as follows.

Please refer to FIG. 3 and FIG. 4 , FIG. 3 is a schematic diagram of a detached state of the housing fastening structure of the present invention, and FIG. 4 is a schematic diagram of a fastening state of the housing fastening structure of the present invention. The shell fastening structure 500 is used to be arranged between the first shell 200 and the second shell 300 , and the shell fastening structure 500 includes a first hook 51 , a second hook 52 and a bidirectional fixing hook 53 ; The first hook 51 extends from the first edge 21 of the first housing 200 to the second housing 300 with a first elastic portion 511, and from the first elastic portion 511 toward the second hook 52, that is, parallel The first clamping portion 512 protrudes in the first direction S1 of the first edge 21 .

The second hook 52 is a second elastic portion 521 extending from the first edge 21 of the first housing 200 to the second housing 300 , and extends from the second elastic portion 521 toward the first hook 51 , that is, opposite to the first hook 51 . The second clamping portion 522 protrudes from the second direction S2 of the first direction S1 , wherein the clamping space H is defined by the first hook 51 , the second hook 52 and the first housing 200 .

The two-way fixing hook 53 is a fixing part 531 extending from the second edge 31 of the second housing 300 to the first housing 200, and a first interference part 532 extending from the fixing part 531 along the second direction S2, and self-fixing The portion 531 extends out of the second interference portion 533 along the first direction S1.

When the two-way fixing hook 53 is pressed by the first external force F1 toward the first housing 200, the first interference part 532 interferes with the first clamping part 512, and the second interference part 533 interferes with the second clamping part 522. When interference occurs, the first hook 51 is elastically bent toward the second direction S2, and the second hook 52 is elastically bent toward the first direction S1, so that the two-way fixing hook 53 is accommodated in the clamping space H.

When the two-way fixing hook 53 is pulled by the second external force F2 toward the second housing 300 , the first interference portion 532 interferes with the first clamping portion 512 , and the second interference portion 533 interacts with the second clamping portion 522 . When interfering, the first hook 51 is elastically bent toward the second direction S2 , and the second hook 52 is elastically bent toward the first direction S1 , so that the two-way fixing hook 53 is separated from the clamping space H.

To sum up the above, compared with the conventional shell fastening structures 100 and 400, the shell fastening structure 500 of the present invention is due to the elastic bending direction of the first hook 51 and the second hook 52 during disassembly and assembly. It is parallel to the first edge 21 and the second edge 31, so the internal space occupied by the housing fastening structure 500 is only the thickness W3 of the first hook 51, the second hook 52 or the two-way fixing hook 53, and the elastic bending The folding will not conflict with the internal housing space of the housing, so the internal space of the housing can be effectively reserved for use by circuit boards and electronic components.

In addition, in order to have more ideal operability and durability, preferably in this embodiment, the first clamping portion 512 protrudes gradually from the first elastic portion 511 toward the first direction S1 , and the first clamping portion 512 has a first inner bevel 5121 adjacent to the first housing 200 and a first outer bevel 5122 on the opposite side, the first inner bevel 5121 is formed from the end of the first hook 51 Inclined towards the second housing 300, the first outer slope 5122 is inclined from the end of the first hook 51 towards the first housing 200; similarly, the second clamping portion 522 is towards the second direction from the second elastic portion 521 S2 tapers and protrudes, and the second clamping portion 522 has a second inner slope 5221 adjacent to the first housing 200, and has a second outer slope 5222 on the opposite side. The second inner slope 5221 is from the first housing 200. The end of the second hook 52 is inclined towards the second housing 300 , and the second outer slope 5222 is inclined from the end of the second hook 52 towards the first housing 200 .

Furthermore, the first interference portion 532 extends gradually from the fixing portion 531 along the second direction S2, and the second interference portion 533 extends gradually from the fixing portion 531 along the first direction S1, and the first interference portion The side of the part 532 and the second interfering part 533 facing the first housing 200 may have insertion surfaces 5321 and 5331 corresponding to the inclinations of the first outer slope 5122 and the second outer slope 5222 for fixing the hook 53 in both directions. In the process of inserting into the clamping space H, it abuts against the first outer slope 5122 and the second outer slope 5222, and provides the effect of introducing the bidirectional fixing hook 53 into the clamping space H; similarly, the first interference part 532 and the second The side of the interference part 533 facing the second housing 300 can have extraction surfaces 5322 and 5332 corresponding to the inclinations of the first inner slope 5121 and the second inner slope 5221, for pulling out and clamping the bidirectional fixing hook 53 In the process of the space H, it leans against the first inner slope 5121 and the second inner slope 5221, and provides the effect of leading the two-way fixed hook 53 out of the clamping space H; because the two-way fixed hook 53 is locked by the first clamp when it is in the clamped state. The hook 51 and the second hook 52 are engaged and clamped, so it can be inserted and removed more easily for the user under the premise of maintaining a stable engagement.

However, it should be emphasized that the above-mentioned structure is an ideal housing fastening structure 500. In fact, the first clamping part 512, the second clamping part 522, the first interference part 532 and the second interference part 533 It is not necessary to have the first inner bevel 5121, the second inner bevel 5221, the first outer bevel 5122, the second outer bevel 5222, the insertion surfaces 5321 and 5331, and the extraction surfaces 5322 and 5332. For the insertion process, It is only necessary to have the first outer bevel 5122 and the second outer bevel 5222, or the insertion surfaces 5321 and 5331, so that the user can insert more easily; similarly, for the extraction process, only the first inner bevel is required The inclined surface 5121 and the second inner inclined surface 5221, or the pulling-out surfaces 5322 and 5332 are for the user to pull out more easily.

Finally, in a preferred embodiment of the present invention, the first housing 200 can further define a plurality of grooves H2, H3 and H4 on the first edge 21 adjacent to the first hook 51 and the second hook 52, so that Firstly, in addition to making the length of the first elastic part 511 and the second elastic part 521 longer, the elastic bending space of the first hook 51 and the second hook 52 can also be increased, and thus the first hook 51 The second hook 52 is less likely to be broken due to disassembly and assembly, which greatly increases the durability of the casing fastening structure 500 of the present invention.

Through the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the scope of the patent claims for the present invention.

Claims (4)

1. a structure for fixing casing, is characterized in that comprising:

One one first snap fit and one second snap fit being arranged at one first housing; And the two-way fixed hook that is arranged at one second housing;

Wherein, described first snap fit extends one first elastic portion from one first edge of described first housing to described second housing, and stretch out one first clamping part from described first elastic portion towards a first direction of described second snap fit;

Described second snap fit, extend one second elastic portion from the first edge of described first housing to described second housing, and stretch out one second clamping part from described second elastic portion towards a second direction of described first snap fit, wherein, described first snap fit, described second snap fit and described first housing define a grasping part;

Described first housing offers most grooves in contiguous described first snap fit in described first edge and described second snap fit place; And

Described twin fixed guide-vane hooks, extend a fixed part from one second edge of described second housing to described first housing, and extend one first interference part from described fixed part along described second direction, and extend one second interference part from described fixed part along described first direction;

Wherein, one is subject to towards the first external force extruding of described first housing when described twin fixed guide-vane hooks, described first snap fit is toward described second direction elasticity bending, and described second snap fit is toward described first direction elasticity bending, and then makes described twin fixed guide-vane hook be placed in described grasping part; Pull towards the second external force of described second housing when described twin fixed guide-vane hook is subject to one, described first snap fit is toward described second direction elasticity bending, and described second snap fit is toward described first direction elasticity bending, and then described twin fixed guide-vane is made to hook the described grasping part of disengaging.

2. according to structure for fixing casing according to claim 1, it is characterized in that described first clamping part stretches out towards described first direction convergent from described first elastic portion, and described second clamping part stretches out towards described second direction convergent from described second elastic portion.

3. according to structure for fixing casing according to claim 2, it is characterized in that described first clamping part has inclined-plane in one first in contiguous described first housing place, and in relative side, there is one first outer inclined-plane, in described first, inclined-plane tilts towards described second housing from the end of described first snap fit, and described first outer inclined-plane tilts towards described first housing from the end of described first snap fit; And described second clamping part has inclined-plane in one second in contiguous described first housing place, and in relative side, there is one second outer inclined-plane, in described second, inclined-plane tilts towards described second housing from the end of described second snap fit, and described second outer inclined-plane tilts towards described first housing from the end of described second snap fit.

4., according to structure for fixing casing according to claim 1, it is characterized in that described first interference part is extended along described second direction convergent from described fixed part, and described second interference part is extended along described first direction convergent from described fixed part.