Anti-disengagement component shell

Abstract

The utility model provides an anti-disengagement component housing, comprising a bottom housing and a cover housing, the opening end of the bottom housing is provided with a projection and a rectangular annular clamping part, the outer side of the clamping part forms an outer step, the cover housing is provided with a rectangular annular sleeving part, and the sleeving part sleeves the clamping part and abuts against the outer step to realize clamping fixation; the wall thickness of the sleeving part is gradually reduced from the root part to the end part; the inner wall of the sleeving part and the outer wall of the clamping part form an acute angle; and the shape of the end part of the inner wall of the sleeving part is similar to that of the root part of the outer wall of the clamping part. The sleeving part is clamped with the outer step, so that the bottom shell and the cover shell are clamped and positioned; and when the sleeving part is sleeved with the clamping part, the inner wall of the sleeving part and the outer wall of the clamping part form an acute angle, so that the sleeving part and the clamping part deform when the sleeving part is sleeved with the clamping part, the connection strength of the bottom shell and the cover shell is higher, and the bottom shell and the cover shell are difficult to separate under the action of resilience force of the PINs.

Description

Technical Field

[0001] The utility model relates to the technical field of components, in particular to an anti-detachment component housing. Background Art

[0002] The component comprises a housing, in which a circuit board and a PIN are installed. The PIN is inserted outward from the housing and bent so that the bent portion is clamped in a positioning groove of the housing for connection with an external device.

[0003] The outer shell is generally composed of a bottom shell and a cover shell. The open end of the bottom shell is provided with a raised ring portion, and the cover shell is clamped with the bottom shell by sleeve-fitting the ring portion. In this way, the contact area between the bottom shell and the cover shell is small, and the connection strength is low. The main body of the PIN needle is fixed on the bottom shell, and the bent portion is clamped in the positioning groove of the cover shell. Since the stress of the PIN needle is relatively large after bending, a rebound force will be generated, causing the bottom shell and the cover shell to disengage. Utility Model Content

[0004] In order to solve the technical problems in the background technology, the utility model discloses an anti-detachment component housing.

[0005] The utility model provides an anti-detachment component housing, comprising a bottom shell and a cover shell, wherein the opening end of the bottom shell is provided with a protruding, rectangular ring-shaped clamping portion, the outer side of the clamping portion forms an outer step, and the cover shell is provided with a rectangular ring-shaped sleeve portion, the sleeve portion sleeves the clamping portion and abuts against the outer step to achieve clamping and fixing; the wall thickness of the sleeve portion decreases from the root to the end;

[0006] The inner wall of the sleeve portion and the outer wall of the clamping portion form an acute angle;

[0007] The shape of the end portion of the inner wall of the sleeve portion is similar to the root portion of the outer wall of the clamping portion.

[0008] The sleeve portion is clamped with the outer step to realize the clamping and positioning of the bottom shell and the cover shell; and when the sleeve portion is sleeved with the clamping portion, since the inner wall of the sleeve portion and the outer wall of the clamping portion form an acute angle, when the sleeve portion is sleeved with the clamping portion, the two will be deformed, specifically: the sleeve portion is deformed outward and generates elastic force, and this elastic force forms pressure on the clamping portion; the clamping portion is deformed inward and generates elastic force, and this elastic force forms pressure on the sleeve portion; in this way, the connection strength between the bottom shell and the cover shell is higher, and it is difficult to disengage under the action of the PIN needle rebound force.

[0009] The contact area between the bottom shell and the cover shell directly affects the connection strength between the bottom shell and the cover shell. Based on this, a further improvement is that an inner step is provided at the bottom of the cover shell; the clamping part abuts against the inner step. This not only makes the position of the bottom shell and the outer shell more stable, but also increases the contact area between the bottom shell and the outer shell, and the connection strength is higher.

[0010] The bottom shell and the outer shell are easy to break under the pressure of the PIN needle. Based on this, a further improvement is that: the bottom shell is provided with a convex plate extending toward the opening direction, and the convex plate is provided with a plurality of plug holes for plugging the PIN needle; the cover shell is provided with a collar extending toward the opening direction for plugging the convex plate. The provision of the collar and the convex plate increases the wall thickness of the outer part of the PIN needle, which is stronger and not easy to break.

[0011] In order to improve the position stability of the convex plate and the collar, further improvements are: a poorly arcuate convex block is arranged on the outer side of the convex plate; and a poorly arcuate groove for clamping the convex block is arranged on the inner wall of the collar.

[0012] Since the position close to the PIN pin is directly subjected to the pressure of the PIN pin, each socket has two symmetrically arranged protrusions, which are arranged concentrically with the protrusions. This increases the wall thickness of the socket and makes the strength of the socket part higher.

[0013] According to the requirements, the ring is in an eccentric position, which will cause differences in the strength of the various sides of the sleeve part after the bottom shell and the cover shell are assembled, resulting in excessive strength near the ring and too low strength far from the ring. Based on this, further improvements are: the relatively long sides of the sleeve part are respectively set as the first long side and the second long side, and the relatively short sides are respectively set as the first short side and the second short side; the ring is located near the first long side and the first short side; the angle between the inner wall of the first long side and the outer wall of the clamping part is set to a, and the angle between the inner wall of the second long side and the outer wall of the clamping part is set to b; a<b; the angle between the inner wall of the first short side and the outer wall of the clamping part is set to c, and the angle between the inner wall of the second short side and the outer wall of the clamping part is set to d; c<d.

[0014] In order to further improve the connection strength between the bottom shell and the cover shell, specifically: the outer wall of the clamping part and the outer step form an obtuse angle, so that the deformation of the clamping part is larger, so that the connection strength between the bottom shell and the cover shell is higher.

[0015] If the deformation of the clamping part is too large, it will be more laborious and will increase the difficulty of installing the bottom shell and the cover shell. Based on this, further improvements are: the clamping part is composed of two opposite third long sides and two opposite third short sides; the outer wall of the third long side forms an obtuse angle with the outer step; the third short side is perpendicular to the outer step. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 yes Figure 1 A top view of

[0019] Figure 3 yes Figure 2 Sectional view of AA in the middle;

[0020] Figure 4 yes Figure 2 Cross-sectional view of the middle BB;

[0021] Figure 5 It is a schematic diagram of the structure of the bottom shell;

[0022] Figure 6 It is the front view of the bottom shell;

[0023] Figure 7 yes Figure 6 Cross-sectional view of CC;

[0024] Figure 8 yes Figure 6 Cross-sectional view of the middle DD;

[0025] Fig. 9 is a schematic diagram of the structure of the cover;

[0026] Fig.10 is the front view of the cover;

[0027] Fig.11 yes Fig.10 Sectional view of EE;

[0028] Fig.12 yes Fig.10 Cross-sectional view of the middle FF;

[0029] In the figure: 1, bottom shell; 2, cover shell; 3, snap-fitting part; 4, outer step; 5, sleeve part; 6, convex plate; 7, insertion hole; 8, sleeve ring; 9, protrusion; 10, slot; 21, inner step; 31, third long side; 32, third short side; 51, first long side; 52, second long side; 53, first short side; 54, second short side. DETAILED DESCRIPTION

[0030] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0031] Embodiment 1:

[0032] like Figure 1-4 As shown, the utility model discloses an anti-detachment component housing, comprising a bottom housing 1 and a cover housing 2, both of which are box structures with one end open.

[0033] The open end of the bottom shell 1 is provided with a protruding, rectangular ring-shaped clamping portion 3, and the outer side of the clamping portion 3 constitutes an outer step 4. The cover shell 2 is provided with a rectangular ring-shaped sleeve portion 5, and the inner side of the sleeve portion 5 constitutes an inner step 21. When the sleeve portion 5 is sleeved with the clamping portion 3, the sleeve portion 5 abuts against the outer step 4, and the clamping portion 3 abuts against the inner step 21, so that the bottom shell 1 and the cover shell 2 are clamped and fixed.

[0034] The outer wall of the sleeve portion 5 is perpendicular to the inner step 21, and the inner wall and the outer wall form an acute angle, so that the wall thickness of the sleeve portion 5 decreases from the root to the end. The outer wall of the clamping portion 3 is perpendicular to the outer step 4. The shape of the end of the inner wall of the sleeve portion 5 is similar to the root of the outer wall of the clamping portion 3.

[0035] The bottom shell 1 is provided with a rectangular convex plate 6 extending toward the opening direction, and the convex plate 6 is provided with a plurality of spaced insertion holes 7, and the PIN pins are inserted into the insertion holes 7. The cover shell 2 is provided with a collar 8 extending toward the opening direction, which is used to sleeve the convex plate 6. The provision of the collar 8 and the convex plate 6 increases the wall thickness of the outer part of the PIN pin, which has higher strength and is not easy to break.

[0036] The outer side of the convex plate 6 is provided with a inferior arc shaped protrusion 9, and the inner wall of the collar 8 is provided with an inferior arc shaped groove 10 for engaging the protrusion 9, which is used for engaging and positioning the convex plate 6 and the collar 8. Each socket 7 corresponds to two symmetrically arranged protrusions 9, which are arranged concentrically with the protrusion 9. In this way, the wall thickness of the socket 7 is increased, making the strength of the socket 7 higher.

[0037] like Figure 9-12 As shown, the relatively long sides of the sleeve part 5 are respectively set as the first long side 51 and the second long side 52, and the relatively short sides are respectively set as the first short side 53 and the second short side 54; the collar 8 is located near the first long side 51 and the first short side 53; the angle between the inner wall of the first long side 51 and the outer wall of the clamping part 3 is set as a, and the angle between the inner wall of the second long side 52 and the outer wall of the clamping part 3 is set as b; a<b; the angle between the inner wall of the first short side 53 and the outer wall of the clamping part 3 is set as c, and the angle between the inner wall of the second short side 54 and the outer wall of the clamping part 3 is set as d. Since the collar 8 is located near the first long side 51 and the first short side 53, c<d. In this embodiment, a is 0.2°, b is 0.8°, c is 0.2°, and d is 0.5°. With such arrangement, the strength at the first long side 51 is lower than that at the second long side 52 , and the strength at the first short side 53 is lower than that at the second short side 54 . Under the joint action of the sleeve ring 8 , the strength distribution of the sleeve portion 5 is uniform.

[0038] The sleeve portion 5 is clamped into the outer step 4 to realize the clamping and positioning of the bottom shell 1 and the cover shell 2; and when the sleeve portion 5 is sleeved into the clamping portion 3, since the inner wall of the sleeve portion 5 and the outer wall of the clamping portion 3 form an acute angle, when the sleeve portion 5 is sleeved into the clamping portion 3, the two will be deformed, specifically: the sleeve portion 5 is deformed outward and generates elastic force, and this elastic force forms pressure on the clamping portion 3; the clamping portion 3 is deformed inward and generates elastic force, and this elastic force forms pressure on the sleeve portion 5; in this way, the connection strength between the bottom shell 1 and the cover shell 2 is higher, and it is difficult to disengage under the action of the PIN needle rebound force.

[0039] Embodiment 2:

[0040] Compared with the first embodiment, the difference is: Figure 5-8 As shown, the outer wall of the clamping portion 3 forms an obtuse angle with the outer step 4. In this embodiment, the obtuse angle is 90.3°, so that the deformation of the clamping portion 3 is larger, so that the connection strength between the bottom shell 1 and the cover shell 2 is higher. In addition, the setting of the obtuse angle will not hinder the sleeve portion 5 from sleeve-joining the clamping portion 3.

[0041] Embodiment three:

[0042] Compared with the second embodiment, the difference is: Figure 5-8 As shown, the clamping portion 3 is composed of two opposite third long sides 3131 and two opposite third short sides 32; the outer wall of the third long side 3131 forms a 90.3° angle with the outer step 4; and the third short side 32 is perpendicular to the outer step 4. In this way, while ensuring sufficient connection strength between the bottom shell 1 and the cover shell 2, the deformation of the clamping portion 3 is reduced, the purpose of labor saving can be achieved, and the difficulty of installing the bottom shell 1 and the cover shell 2 can be reduced.

[0043] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A component housing with an anti-detachment property, comprising a bottom shell (1) and a cover shell (2), wherein the bottom shell (1) is provided with a protruding, rectangular ring-shaped clamping portion (3) at an open end, the outer side of the clamping portion (3) forming an outer step (4), and the cover shell (2) is provided with a rectangular ring-shaped sleeve portion (5), the sleeve portion (5) sleeves the clamping portion (3) and abuts against the outer step (4) to achieve clamping fixation; characterized in that: The wall thickness of the sleeve portion (5) decreases gradually from the root to the end; The inner wall of the sleeve portion (5) and the outer wall of the clamping portion (3) form an acute angle; The shape of the end portion of the inner wall of the sleeve portion (5) is similar to the shape of the root portion of the outer wall of the clamping portion (3).

2. The anti-detachment component housing according to claim 1, characterized in that: The bottom of the cover shell (2) is provided with an inner step (21); The clamping portion (3) abuts against the inner step (21).

3. The anti-detachment component housing according to claim 2, characterized in that: The bottom shell (1) is provided with a convex plate (6) extending in the direction of the opening, the convex plate (6) is provided with a plurality of insertion holes (7), and the insertion holes (7) are used for inserting PIN needles; The cover shell (2) is provided with a sleeve ring (8) extending towards the opening direction and used for sleeve-engaging the convex plate (6).

4. The anti-detachment component housing according to claim 3, characterized in that: The outer side of the convex plate (6) is provided with a inferior arc-shaped convex block (9); The inner wall of the collar (8) is provided with a poorly arcuate groove (10) for engaging the protrusion (9).

5. The anti-detachment component housing according to claim 4, characterized in that: Each insertion hole (7) corresponds to two symmetrically arranged protrusions (9), which are arranged concentrically with the protrusions (9).

6. The anti-detachment component housing according to claim 3, characterized in that: The relatively long sides of the sleeve portion (5) are respectively set as a first long side (51) and a second long side (52), and the relatively short sides are respectively set as a first short side (53) and a second short side (54); The collar (8) is located close to the first long side (51) and the first short side (53); The included angle between the inner wall of the first long side (51) and the outer wall of the clamping portion (3) is set to a, and the included angle between the inner wall of the second long side (52) and the outer wall of the clamping portion (3) is set to b; a<b; The included angle between the inner wall of the first short side (53) and the outer wall of the clamping portion (3) is set to c, and the included angle between the inner wall of the second short side (54) and the outer wall of the clamping portion (3) is set to d; c<d.

7. The anti-detachment component housing according to claim 6, characterized in that: The outer wall of the clamping portion (3) and the outer step (4) form an obtuse angle.

8. The anti-detachment component housing according to claim 6, characterized in that: The clamping portion (3) is composed of two opposite third long sides (31) and two opposite third short sides (32); The outer wall of the third long side (31) forms an obtuse angle with the outer step (4); The third short side (32) is perpendicular to the outer step (4).

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