CN102647895A

CN102647895A - Negative-pressure shield

Info

Publication number: CN102647895A
Application number: CN2012101182826A
Authority: CN
Inventors: 严若均
Original assignee: KUNSHAN CHENGYEDE PRECISION MOULD CO Ltd
Current assignee: KUNSHAN CHENGYEDE PRECISION MOULD CO Ltd
Priority date: 2012-04-23
Filing date: 2012-04-23
Publication date: 2012-08-22

Abstract

The invention discloses a negative-pressure shield, which comprises an inner cover and an outer cover fastened outside the inner cover. A plurality of through holes are arranged on the inner peripheral wall of the inner cover. The outer peripheral wall of the outer cover is an arc surface protruded to the inner cover wall. The arc surface faces to multiple bumps arranged on the inner surface of the inner cover wall. By arranging multiple bumps on the inner side wall of the periphery of the outer cover and setting the peripheral wall of the outer cover to be the arc surface protruded inwards, the negative-pressure shield is easier to be detached owing to elasticity of the arc wall, electronic devices can be mounted and maintained conveniently, and work efficiency is improved. In addition, the side wall of the outer cover is not easy to deform during detachment, the inner cover is not easy to be damaged and can be fastened and used continuously, shield waste generated in detachment is reduced and cost is saved.

Description

The suction type radome

Technical field

The present invention relates to a kind of outer radome of electronic component that covers in, relate in particular to a kind of suction type radome.

Background technology

The various electronic components of the last installation of PCB tend to the phase mutual interference, or receive outside electromagnetic interference when work, or produce electromagnetic radiation to external environment.For fear of interference, common way is at radome of electronic component peripheral hardware at present.

Radome of the prior art is divided into enclosing cover and inner cap, and inner cap is welded direct on the pcb board, and enclosing cover is fastened on outside the inner cap, and electronic component is covered in wherein.Need repairing or when changing, need pry open loam cake when the electronic component in the radome breaks down, but loam cake is difficult for prying open, the installation and maintenance electronic component is inconvenience very, has influenced operating efficiency; And loam cake is prone to deform in the process of sled, and inner cap is prone to be damaged, and becomes waste product, can not continue to fasten again and use, and can only change, and has wasted material.

Summary of the invention

Technical problem to be solved by this invention provides a kind of suction type radome, is easy to dismounting, and is not yielding.

For solving the problems of the technologies described above; The present invention provides a kind of suction type radome; Comprise an inner cap and be fastened on the outer enclosing cover of inner cap that it is characterized in that, interior tegmental wall is provided with a plurality of through holes around the said inner cap; Outer cap wall is the protruding arcwall face of tegmental wall direction in said around the said enclosing cover, and the inner surface of said arcwall face tegmental wall direction in said is provided with a plurality of raised points.

Said raised points with said in the through hole that is provided with on the tegmental wall match.

Comprise an end face and the said outer cap wall that is connected with said end face periphery in the said enclosing cover, the junction of said outer cap wall and said end face forms the arc transiting surface of a slyness, and said transition face is protruding towards the direction away from said inner cap.

The base of said outer cap wall is to the direction perk away from tegmental wall in said.

Said raised points is located at the position of high raised points of said arcwall face,

Said raised points is located at the position of the highest raised points that covers said arcwall face.

Be positioned at that the outer cap wall of the same side is a whole or equally distributed a plurality of little outer cap wall around the said enclosing cover.

Said raised points is located on the center line of each said little outer cap wall of said little outer cap wall orientation or is evenly distributed on the whole outer cap wall.

The beneficial effect that the present invention reached:

Suction type radome of the present invention through on the inside sidewalls around the enclosing cover a plurality of raised points being set, and is arranged to inwardly protruded arcwall face with sidewall around the enclosing cover; Elasticity by arcwall; Be easier to dismounting, made things convenient for the installation and maintenance electronic component, improved operating efficiency; And the enclosing cover sidewall is not yielding when dismounting, and inner cap is difficult for impaired, can continue to fasten and use, and has reduced the radome waste product that produces because of dismounting, provides cost savings.

Description of drawings

Fig. 1 is an inner cap sketch map of the present invention;

Fig. 2 is an enclosing cover sketch map of the present invention;

Fig. 3 is the end view of Fig. 2;

Fig. 4 is the A portion enlarged drawing of Fig. 3.

Embodiment

Below in conjunction with accompanying drawing the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.

Like Fig. 1, Fig. 2 and shown in Figure 3; Suction type radome of the present invention is by an inner cap 1 and be fastened on the outer enclosing cover 2 of inner cap 1 and constitute; Sidewall 11 is provided with a plurality of through holes 12 around the inner cap 1; Be provided with a plurality of raised points 23 with the through hole 12 of inner cap 1 on sidewall 21 inner surfaces 22 around the enclosing cover 2, enclosing cover 2 is fastened on inner cap 1 when outer with matching, and raised points 23 snaps in the through hole 12 correspondingly.

Like Fig. 2, Fig. 3 and shown in Figure 4, comprise the end face 24 and four sidewalls 21 that are connected with end face four limits of a rectangle in the enclosing cover 2.Sidewall 21 is inwardly protruded arcwall face; The protrusion direction of arcwall face is towards inner cap 1 direction; Make sidewall 21 bases 211 to the direction perk away from inner cap 1, and the junction of sidewall 21 and end face 24 forms an arc transiting surface 25 sleekly, transition face 25 is protruding towards the direction away from inner cap 1.The sidewall 21 of enclosing cover 2 one sides is made up of a plurality of little outer cap wall 26 in the present embodiment.On each little outer cap wall 26 raised points 23 is set, raised points 23 is located at along on the center line of each little outer cap wall of little outer cap wall 26 orientations.

Raised points 23 on enclosing cover 2 sidewalls 21 inner surfaces 22 is located at the position of the highest raised points 27 of inwardly protruded arcwall face, or covers the position of the highest raised points of arcwall face.

After enclosing cover 2 fastened with inner cap 1 like this, enclosing cover sidewall 21 bases 211 did not contact with the sidewall 11 of inner cap 1, and transition face 25 does not contact with the mouth of inner cap 1, when dismounting enclosing cover 2, can not produce pressure to inner cap 1, does not damage inner cap 1.

During dismounting enclosing cover 2, by the elasticity of sidewall 21 arcwall faces, dismounting easily; And when dismounting, the arcwall face sidewall 21 of enclosing cover 2 is not yielding, still is non-defective unit after enclosing cover 2, inner cap 1 dismounting, and inner cap 1 and enclosing cover 2 all can continue to fasten use.

The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and distortion, these improvement and distortion also should be regarded as protection scope of the present invention.

Claims

1. suction type radome; Comprise an inner cap and be fastened on the outer enclosing cover of inner cap; It is characterized in that; Tegmental wall is provided with a plurality of through holes in around the said inner cap, and outer cap wall is the protruding arcwall face of tegmental wall direction in said around the said enclosing cover, and the inner surface of said arcwall face tegmental wall direction in said is provided with a plurality of raised points.

2. suction type radome according to claim 1 is characterized in that, said raised points with said in the through hole that is provided with on the tegmental wall match.

3. suction type radome according to claim 1; It is characterized in that; Comprise an end face and the said outer cap wall that is connected with said end face periphery in the said enclosing cover; The junction of said outer cap wall and said end face forms the arc transiting surface of a slyness, and said transition face is protruding towards the direction away from said inner cap.

4. suction type radome according to claim 1 is characterized in that, the base of said outer cap wall is to the direction perk away from tegmental wall in said.

5. suction type radome according to claim 1 is characterized in that, said raised points is located at the position of high raised points of said arcwall face.

6. suction type radome according to claim 1 is characterized in that, said raised points is located at the position of the highest raised points that covers said arcwall face.

7. suction type radome according to claim 1 is characterized in that, is positioned at that the outer cap wall of the same side is whole or a plurality of little outer cap wall around the said enclosing cover.

8. suction type radome according to claim 7 is characterized in that, said raised points is located on the center line of each said little outer cap wall of said little outer cap wall orientation or is evenly distributed on the whole outer cap wall.