CN215070710U - Grounding ring, grounding device and electronic equipment - Google Patents

Abstract

The application relates to a grounding ring, and belongs to the technical field of coaxial line grounding. The ground ring comprises a first pipe section and a second pipe section; the number of the first pipe sections is two, the two first pipe sections are respectively positioned at two ends of the second pipe section along the axial direction, and the inner diameter of each first pipe section is smaller than that of the second pipe section; the pipe wall of the second pipe section is provided with a plurality of strip-shaped openings, and the strip-shaped openings are distributed along the axial direction of the second pipe section and penetrate through the thickness direction of the second pipe section. Adopt this application, should can realize that ground ring joint smoothly is in the draw-in groove, can realize again that ground ring and draw-in groove closely laminate, improve the ground connection stability of coaxial line.

Description

Grounding ring, grounding device and electronic equipment

Technical Field

The present application relates to the field of coaxial line grounding technologies, and in particular, to a grounding ring, a grounding device, and an electronic apparatus.

Background

The coaxial line is a double-conductor transmission line and mainly comprises a sheath, an outer conductor, an insulating layer and an inner conductor from outside to inside in structure. Coaxial lines are used as radio frequency feeder lines in electronic devices (such as mobile phones) due to their low radiation loss and high interference immunity.

The outer conductor of a common coaxial line needs to be grounded in order to achieve good interference immunity. In an electronic device, a metal casing is generally used as a grounding point, and then, the outer conductor is electrically connected with the casing to realize grounding. The outer conductor is electrically connected to the housing through a tubular ground ring, which is sleeved outside the outer conductor, and the ground ring is in contact with the outer conductor to achieve electrical connection. The shell is provided with a clamping groove matched with the grounding ring, the grounding ring is positioned in the clamping groove, and the grounding ring is in contact with the clamping groove to realize electric connection. Furthermore, the outer conductor is electrically connected with the shell through the grounding ring.

In order to assemble the ground ring into the draw-in groove, the groove width of draw-in groove is greater than the external diameter of ground ring a little to make ground ring can block into the draw-in groove, but in case the groove width of draw-in groove is greater than the external diameter of ground ring, the ground ring is located the draw-in groove again, both contact failure, and lead to the ground stability of coaxial line relatively poor.

SUMMERY OF THE UTILITY MODEL

The application provides a ground ring, earthing device and electronic equipment, can overcome the relatively poor problem of ground connection stability of the coaxial line that exists among the correlation technique. The technical scheme is as follows:

in one aspect, a ground ring is provided, the ground ring including a first tube segment and a second tube segment;

the number of the first pipe sections is two, the two first pipe sections are respectively positioned at two ends of the second pipe section along the axial direction, and the inner diameter of each first pipe section is smaller than that of the second pipe section;

the pipe wall of the second pipe section is provided with a plurality of strip-shaped openings, and the strip-shaped openings are distributed along the axial direction of the second pipe section and penetrate through the thickness direction of the second pipe section.

Optionally, the inner diameter of the first pipe section is smaller than the outer diameter of the outer conductor of the coaxial line, and the outer diameter of the outer conductor is equal to the inner diameter of the second pipe section;

the outer diameter of the second pipe section is larger than the groove width of the clamping groove.

Optionally, the plurality of strip-shaped openings are uniformly arranged along the circumferential direction of the second pipe section.

Optionally, the number of the strip-shaped openings is six.

Optionally, one end of the strip-shaped opening is close to the first end of the second pipe section, and the other end of the strip-shaped opening is close to the second end of the second pipe section.

Optionally, the length of the second pipe section is greater than the length of the first pipe section.

Optionally, the first and second pipe sections are coaxial.

Optionally, the first tube section and the second tube section are integrally formed.

In another aspect, a grounding device is provided, which includes a coaxial line, a card slot and the above grounding ring, wherein the coaxial line includes an outer conductor;

the inner diameter of the first pipe section is smaller than the outer diameter of the outer conductor, the outer diameter of the outer conductor is smaller than the inner diameter of the second pipe section, the grounding ring is sleeved outside the outer conductor, the inner wall of the first pipe section is tightly attached to the outer wall of the outer conductor, and a gap is formed between the inner wall of the second pipe section and the outer wall of the outer conductor;

the outer diameter of the second pipe section is larger than the groove width of the clamping groove, the second pipe section is located in the clamping groove, and the outer wall of the second pipe section is tightly attached to the inner wall of the clamping groove.

Optionally, a groove wall of the clamping groove has a projection at a position corresponding to the second pipe section.

Optionally, the processing technology of the clamping groove is injection molding.

In another aspect, an electronic device is provided, which includes the grounding device described above.

In an embodiment of the application, the grounding ring comprises a first pipe section and a second pipe section, and the pipe wall of the second pipe section is provided with a plurality of strip-shaped openings, so that the pipe wall of the second pipe section has elasticity and can contract along the radial direction. Thus, when the grounding ring is sleeved outside the coaxial line, the first pipe section is tightly attached to the outer conductor of the coaxial line, and the second pipe section is smoothly clamped in the clamping groove through the radial contraction elasticity of the pipe wall of the second pipe section and tightly attached to the clamping groove. Therefore, the grounding ring can be smoothly clamped in the clamping groove and can be tightly attached to the clamping groove, and the grounding stability of the coaxial line is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In the drawings:

fig. 1 is a schematic structural diagram of a coaxial line according to an embodiment;

fig. 2 is a schematic structural diagram illustrating a grounding ring sleeved outside a coaxial line and located in a card slot according to an embodiment;

FIG. 3 is a schematic diagram of a ground ring according to an embodiment;

fig. 4 is a schematic structural diagram illustrating a grounding ring sleeved outside a coaxial line according to an embodiment;

fig. 5 is a schematic structural diagram illustrating a grounding ring sleeved outside a coaxial line and located in a card slot according to an embodiment;

fig. 6 is a schematic structural diagram illustrating a grounding ring sleeved outside a coaxial line and located in a card slot according to an embodiment.

Description of the figures

1. A ground ring; 11. a first tube section; 12. a second tube section; 121. a strip-shaped opening;

2. a coaxial line; 20. a sheath; 21. an outer conductor; 22. an insulating layer; 23. an inner conductor;

3. a card slot; 31. and (4) a bump.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The embodiment of the application provides a grounding ring 1, which is used for realizing the grounding of a coaxial line 2. The coaxial line 2 is a two-conductor transmission line, and the schematic structural diagram thereof can be seen in fig. 1, and mainly includes a sheath 20, an outer conductor 21, an insulating layer 22 and an inner conductor 23 from outside to inside.

The sheath 20 and the insulating layer 22 are made of insulating material, and the outer conductor 21 and the inner conductor 23 are made of metal material.

The coaxial line 2 has low radiation loss and strong anti-interference performance, and thus is applied to electronic devices as a radio frequency feeder, for example, mobile phones, tablet computers, notebook computers, smart wearable devices, vehicle-mounted terminals, and the like.

For example, antennas are arranged on a main board and an auxiliary board of a mobile phone, and radio frequency components are arranged on the main board, so that the main board and the auxiliary board can be connected through a coaxial line 2, so that the radio frequency components on the main board can transmit radio frequency signals to the antennas on the auxiliary board through the coaxial line 2.

In applications of the coaxial cable 2, the grounding of the outer conductor 21 is generally required to achieve good interference resistance.

In the electronic device, since the metal casing is made of a metal material having a large area in the electronic device, the casing is usually used as a zero potential reference point, and then the coaxial line 2 is electrically connected to the casing, so that the coaxial line 2 can be grounded.

The housing of the electronic device may include a bottom shell and a middle frame, and then the coaxial line 2 may be electrically connected to the bottom shell and also electrically connected to the middle frame.

In achieving the electrical connection between the coaxial line 2 and the housing, since the thickness of the outer conductor 21 of the coaxial line 2 is relatively thin, or the outer conductor 21 of the coaxial line 2 is a braided mesh wire, it is inconvenient to directly electrically connect with the housing, and the outer conductor 21 is usually electrically connected with the housing through the tubular ground ring 1.

For example, the coaxial line 2 is at the grounding position, the sheath 20 is peeled off to expose the outer conductor 21, the grounding ring 1 is sleeved outside the exposed outer conductor 21, and the inner wall of the grounding ring 1 is tightly attached to the outer wall of the covered outer conductor 21, so as to realize the electrical connection between the outer conductor 21 and the grounding ring 1.

In order to electrically connect the ground ring 1 and the housing, as shown in fig. 2, the ground ring 1 may be electrically connected to the housing through a card slot 3.

Wherein, the draw-in groove 3 can belong to a part of casing, and it forms with the casing processing together, perhaps, draw-in groove 3 also can not belong to the casing, nevertheless fixes on the surface of casing, and this embodiment does not do specific limit to whether draw-in groove 3 belongs to the casing, can satisfy draw-in groove 3 and casing contact can.

As shown in fig. 2, the grounding ring 1 is located in the slot 3, and the outer wall of the grounding ring 1 is attached to the inner wall of the slot 3, so as to electrically connect the grounding ring 1 and the slot 3.

It can be seen that the inner wall of the grounding ring 1 contacts with the outer conductor 21 of the coaxial cable 2, the outer wall of the grounding ring 1 contacts with the inner wall of the clamping groove 3, and the coaxial cable 2 is electrically connected with the shell through the grounding ring 1, so as to realize the grounding of the coaxial cable 2.

By the aforesaid, draw-in groove 3 mainly plays the effect with ground ring 1 in close contact with, but at the in-process with ground ring 1 assembly to draw-in groove 3, because the rigid contact between ground ring 1 and the draw-in groove 3, also can be said to be, hard contact, the problem that ground ring 1 can't install to draw-in groove 3 appears easily, perhaps, ground ring 1 appears easily though install to draw-in groove 3 in, the problem that the contact effect of ground ring 1 and draw-in groove 3 is not good.

In order to enable the grounding ring 1 to be assembled in the slot 3 and enable the grounding ring 1 to be in good contact with the slot 3, generally, when the slot 3 is processed, injection molding is performed first, and then CNC (Computer Numerical Control) processing is performed, but the CNC processing has high cost and long time consumption, which results in high cost and low efficiency for processing the slot 3.

And this embodiment provides a ground ring 1, and this ground ring 1 can assemble smoothly in draw-in groove 3, can realize good contact with draw-in groove 3 again, but also can reduce the cost of processing draw-in groove 3.

As shown in fig. 3, a schematic structural diagram of a ground ring 1 provided in this embodiment is shown. The ground ring 1 includes two first pipe segments 11 and two second pipe segments 12, the two first pipe segments 11 are respectively located at two ends of the second pipe segment 12 along the axial direction, for example, one first pipe segment 11 is connected to one end of the second pipe segment 12 along the axial direction, and the other first pipe segment 11 is connected to the other end of the second pipe segment 12 along the axial direction.

The first pipe section 11 and the second pipe section 12 may be integrally formed, and the first pipe section 11 and the second pipe section 12 may also be independent from each other, and are connected by welding.

The first pipe section 11 and the second pipe section 12 may be coaxial, i.e. the axis of the first pipe section 11 and the axis of the second pipe section 12 coincide. Of course, the axis of the first pipe section 11 and the axis of the second pipe section 12 may also be parallel but slightly offset. This embodiment is not limited to this.

In an example, the first pipe section 11 of the grounding ring 1 is used for being closely attached to the outer conductor 21 of the coaxial wire 2, the second pipe section 12 of the grounding ring 1 is used for being closely attached to the card slot 3, and the card slot 3 is contacted with the shell, so that the coaxial wire 2 is electrically connected with the shell through the grounding ring 1 and the card slot 3, and the outer conductor 21 of the coaxial wire 2 is grounded.

The features of the first and second sections 11, 12 of the ground ring 1 will now be described.

As mentioned above, the first pipe section 11 of the grounding ring 1 is adapted to closely fit the outer conductor 21 of the coaxial line 2, and accordingly, the inner diameter of the first pipe section 11 matches the outer diameter of the outer conductor 21, for example, the inner diameter of the first pipe section 11 is slightly smaller than the outer diameter of the outer conductor 21, so that when the grounding ring 1 is sleeved outside the coaxial line 2, the inner wall of the first pipe section 11 can closely fit the outer wall of the outer conductor 21, as shown in fig. 4.

Wherein, the first pipe segment 11 and the outer conductor 21 are tightly attached, that is, the first pipe segment 11 and the outer conductor 21 are attached, and have an interaction force, and the first pipe segment 11 and the outer conductor 21 are in interference fit.

In order to achieve that the first tube section 11 is in contact with the outer conductor 21 when the grounding ring 1 is applied on the outside of the coaxial line 2, the sheath 20 may be peeled off at the grounding location of the coaxial line 2 to expose the outer conductor 21, respectively, before applying the grounding ring 1 on the coaxial line 2.

Wherein the inner diameter of the first tube section 11 is smaller than the outer diameter of the outer conductor 21.

Thus, when the grounding ring 1 is sleeved outside the outer conductor 21, the outer conductor 21 can be radially contracted to a certain extent, so that the first pipe section 11 is covered on the outer conductor 21, and the inner wall of the first pipe section 11 is tightly attached to the outer wall of the outer conductor 21.

It is noted that the difference between the inner diameter of the first tube segment 11 and the outer diameter of the outer conductor 21 is within the radial contraction of the outer conductor 21 to enable the first tube segment 11 to be sleeved outside the outer conductor 21.

In one example, the first pipe section 11 may be riveted to the outer conductor 21, for example, the sheath 20 may be peeled off at a certain position of the coaxial line 2 to expose the outer conductor 21. Then, the metal plate for forming the grounding ring 1 may be coated on the surface of the outer conductor 21, the joint of the metal plate is riveted to form the grounding ring 1, the formed grounding ring 1 includes two first pipe segments 11 and one second pipe segment 12, the second pipe segment 12 is located between the two first pipe segments 11, the first pipe segment 11 and the outer conductor 21 are tightly attached, and a gap is formed between the second pipe segment 12 and the outer conductor 21.

In this embodiment, a specific implementation manner of the close fitting between the first pipe segment 11 and the outer conductor 21 is not limited, and may be flexibly selected according to an actual situation.

The above is a description of the features of the first pipe section 11 of the ground ring 1, and the features of the second pipe section 12 are described below.

The pipe wall of the second pipe section 12 can be contracted along the radial direction, and accordingly, as shown in fig. 3, the pipe wall of the second pipe section 12 has a plurality of strip-shaped openings 121 along the length direction, and the strip-shaped openings 121 penetrate through the thickness direction of the second pipe section 12.

Wherein the strip of the strip-shaped opening 121 may be linear along the axial direction of the second tube section 12. Alternatively, the strips of the strip-shaped openings 121 may be in the shape of a diagonal line, which is spirally distributed along the axial direction of the second pipe section 12. In this embodiment, whether the strip shape of the strip-shaped opening 121 is linear or oblique is not limited, and the radial contraction of the second pipe segment 12 may be implemented, and may be exemplified as linear as shown in fig. 3.

Wherein the plurality of strip-shaped openings 121 are arranged along the circumferential direction of the second pipe section 12, for example, the plurality of strip-shaped openings 121 are evenly arranged along the circumferential direction of the second pipe section 12.

Due to the plurality of strip-shaped openings 121 formed in the pipe wall of the second pipe section 12, the pipe wall of the second pipe section 12 is elastic and can expand and contract along the radial direction.

In order to promote a tight fit between the second pipe section 12 and the locking groove 3, the groove width of the locking groove 3 at the location corresponding to the second pipe section 12 is matched to the outer diameter of the second pipe section 12. For example, the groove width of the clamping groove 3 at the position corresponding to the second pipe section 12 is slightly smaller than the outer diameter of the second pipe section 12.

As shown in fig. 5, when the second pipe section 12 is clamped into the clamping groove 3, although the groove width of the clamping groove 3 at the position corresponding to the second pipe section 12 is smaller than the outer diameter of the second pipe section 12, the pipe wall of the second pipe section 12 can be radially contracted, so that the second pipe section 12 can be smoothly clamped into the clamping groove 3. Moreover, after the second pipe section 12 is clamped in the clamping groove 11, the outer wall of the second pipe section 12 can be tightly attached to the inner wall of the clamping groove 11 due to the resilience of the pipe wall of the second pipe section 12.

The tight fit between the outer wall of the second pipe section 12 and the inner wall of the clamping groove 3 means that the outer wall of the second pipe section 12 and the inner wall of the clamping groove 3 are fitted, and an interaction force exists between the outer wall of the second pipe section 12 and the inner wall of the clamping groove 3.

It is to be noted that the difference between the outer diameter of the second pipe section 12 and the groove width of the clamping groove 3 at the location corresponding to the second pipe section 12 is within the radial elasticity of the second pipe section 12, so that the second pipe section 12 can be clamped into the clamping groove 3.

It can be seen that the plurality of strip-shaped openings 121 of the second pipe section 12 can enable the ground ring 1 to be smoothly installed in the clamping groove 3 and tightly attached to the clamping groove 3, and when the second pipe section 12 enters the clamping groove 3, the pipe wall of the second pipe section 12 contracts in the radial direction, so that the assembly tolerance between the second pipe section 12 and the clamping groove 3 can be absorbed.

In the assembly relationship of the grounding ring 1, the coaxial line 2 and the card slot 3, the grounding ring 1 is usually sleeved outside the outer conductor 21 of the coaxial line 2, and then the grounding ring 1 sleeved with the outer conductor 21 is clamped into the card slot 3.

After the grounding ring 1 is sleeved outside the outer conductor 21, in order to enable the second pipe section 12 to radially contract, a space for the second pipe section 12 to radially contract is needed, and accordingly, the inner diameter of the second pipe section 12 is larger than the outer diameter of the outer conductor 21.

Thus, after the grounding ring 1 is sleeved outside the outer conductor 21 of the coaxial cable 2, although the inner wall of the first pipe section 11 and the outer wall of the outer conductor 21 are tightly attached because the inner diameter of the first pipe section 11 is smaller than the outer diameter of the outer conductor 21, because the inner diameter of the second pipe section 12 is larger than the outer diameter of the outer conductor 21, a gap is formed between the inner wall of the second pipe section 12 and the outer wall of the outer conductor 21, an active space is provided for radial contraction of the second pipe section 12, and further the second pipe section 12 can be radially contracted in the active space.

As can be seen from the above description, the first tube segment 11, the second tube segment 12, the outer conductor 21 and the card slot 3 have the following relationship in terms of dimensions:

the inner diameter of the first tube segment 11 is smaller than the outer diameter of the outer conductor 21 so that the first tube segment 11 is wrapped around the outer conductor 21 by interference. And the outer diameter of the outer conductor 21 is smaller than the inner diameter of the second tubular section 12 so that there is a gap between the inner wall of the second tubular section 12 and the outer wall of the outer conductor 21 to provide clearance for radial contraction of the second tubular section 12. It follows that the inner diameter of the first pipe section 11 is also smaller than the inner diameter of the second pipe section 12.

The outer diameter of the second pipe section 12 is larger than the groove width of the clamping groove 3 at the position corresponding to the second pipe section 12, so that the second pipe section 12 is in interference fit with the clamping groove 3.

With respect to the outer diameter of the first pipe segment 11 and the outer diameter of the second pipe segment 12, as shown in FIG. 3, the outer diameter of the first pipe segment 11 may be smaller than the outer diameter of the second pipe segment 12. Of course, the outer diameter of the first pipe section 11 may be larger than the outer diameter of the second pipe section 12, or the outer diameters of the two pipe sections may be equal, which is not limited in this embodiment.

As for the relation between the outer diameter of the first pipe section 11 and the groove width of the clamping groove 3, if the first pipe section 11 is also located in the clamping groove 3, the outer diameter of the first pipe section 11 is smaller than the groove width of the clamping groove 3 as shown in fig. 6, whereas if the first pipe section 11 is not located in the clamping groove 3, the outer diameter of the first pipe section 11 and the groove width of the clamping groove 3 can be designed arbitrarily.

Also, as for the relation between the outer diameter of the coaxial wire 2 and the groove width of the card slot 3, if the coaxial wire 2 is located in the card slot 3, the outer diameter of the coaxial wire 2 is smaller than the groove width of the card slot 3 as shown in fig. 6, and if the coaxial wire 2 is not located in the card slot 3, the outer diameter of the coaxial wire 2 and the groove width of the card slot 3 can be designed arbitrarily.

Thus, the grounding ring 1 is sleeved outside the coaxial line 2, and the inner wall of the first pipe section 11 is tightly attached to the outer wall of the outer conductor 21. The grounding ring 1 is positioned in the clamping groove 3, and the outer wall of the second pipe section 12 is tightly attached to the inner wall of the clamping groove 3. And then realize coaxial line 2 through ground ring 1, be connected with the casing is stable electrically, further realize coaxial line 2's stable ground connection.

As mentioned above, the tube wall of the second tube segment 12 is elastic through the plurality of strip-shaped openings 121, and in order to increase the elasticity of the tube wall of the second tube segment 12, the number of strip-shaped openings 121 can be increased correspondingly. For example, the number of the strip-shaped openings 121 may be four or six, or may also be eight, and the like, and the number of the strip-shaped openings 121 is not limited in this embodiment, and can be flexibly selected according to actual situations.

In terms of the elasticity of the tube wall of the second tube section 12, this can also be achieved by extending the length of the strip-shaped opening 121. For example, the two ends of the strip-shaped opening 121 are close to the two ends of the second pipe section 12, respectively, that is, one end of the strip-shaped opening 121 is close to the first end of the second pipe section 12, and the other end of the strip-shaped opening 121 is close to the second end of the second pipe section 12.

In order to further increase the length of the strip-shaped opening 121, the length of the second tube section 12 is correspondingly longer, for example, the length of the second tube section 12 is greater than the length of the first tube section 11. For example, the length of the second pipe section 12 is two thirds of the total length of the grounding ring 1. For example, the total length of the grounding ring 1 is 3 mm, and the length of the second pipe section 12 may be 2 mm.

With respect to the clamping groove 3, for example, as shown in fig. 5, the length of the clamping groove 3 is smaller than the length of the second pipe section 12, and then the groove width of the whole clamping groove 3 may be slightly smaller than the outer diameter of the second pipe section 12, so that the second pipe section 12 and the clamping groove 3 can be tightly attached after the second pipe section 12 is clamped into the clamping groove 3.

For another example, as shown in fig. 6, the length of the card slot 3 may also be adapted to the length of the coaxial line 2, the coaxial line 2 and the ground ring 1 are both located in the card slot 3, but the width of the card slot 3 at the position corresponding to the second tube section 12 of the ground ring 1 is slightly smaller than the outer diameter of the second tube section 12, so that after the second tube section 12 is clamped in the card slot 3, the second tube section 12 and the card slot 3 can be tightly attached.

In order to achieve a smaller groove width of the locking groove 3 at the location corresponding to the second pipe section 12, the groove wall of the locking groove 3 has a projection 31 at the location corresponding to the second pipe section 12, as shown in fig. 6, so that the groove width of the locking groove 3 at the location corresponding to the second pipe section 12 is smaller than the outer diameter of the second pipe section 12.

One of the groove walls of the locking groove 3 has a protrusion 31 at a position corresponding to the second pipe section 12, or both of the groove walls of the locking groove 3 have a protrusion 31 at a position corresponding to the second pipe section 12.

Wherein, this embodiment does not restrict the concrete length of draw-in groove 3, can select according to actual conditions is nimble, can satisfy ground ring 1 and pass through draw-in groove 3 joint on the casing, and ground ring 1's second pipeline section 12 can with draw-in groove 3 closely laminate can.

Based on the above, as shown in fig. 6, the grounding ring 1 may be sleeved outside the coaxial line 2, and the first pipe segment 11 of the grounding ring 1 and the outer conductor 21 are interference-assembled, so that the inner wall of the first pipe segment 11 and the outer wall of the outer conductor 21 are tightly attached. Since the inner diameter of the second pipe section 12 is larger than that of the first pipe section 11, when the grounding ring 1 is sleeved outside the coaxial line 2, although the first pipe section 11 and the outer conductor 21 are tightly attached, a gap is formed between the second pipe section 12 and the outer conductor 21, and the gap provides a space for the pipe wall of the second pipe section 12 to shrink and deform when the second pipe section 12 is assembled with the card slot 3.

As shown in fig. 6, when the second pipe section 12 of the ground ring 1 is clamped in the clamping groove 3, since the pipe wall of the second pipe section 12 has a plurality of strip-shaped openings 121, the pipe wall of the second pipe section 12 can be contracted in the radial direction, and can smoothly enter the clamping groove 3. And the second pipe section 12 is located in the clamping groove 3, and the outer wall of the second pipe section 12 and the inner wall of the clamping groove 3 can be tightly attached due to the resilience force of the pipe wall of the second pipe section 12.

It can be seen that, since the first tube segment 11 is tightly attached to the outer conductor 21 of the coaxial line 2 and the second tube segment 12 is tightly attached to the card slot 3, the grounding ring 1 and the housing are in good contact, the grounding ring 1 and the coaxial line 2 are in good contact, and the grounding stability of the coaxial line 2 is further improved.

Moreover, the pipe wall of the second pipe section 12 can absorb the assembly tolerance between the second pipe section 12 and the clamping groove 3 through shrinkage deformation. Therefore, when the clamping groove 3 is machined, only the injection molding process is needed, and a CNC machining process is not needed after injection molding, so that the cost can be saved, and the machining efficiency is improved.

In an embodiment of the application, the grounding ring comprises a first pipe section and a second pipe section, and the pipe wall of the second pipe section is provided with a plurality of strip-shaped openings, so that the pipe wall of the second pipe section has elasticity and can contract along the radial direction. Thus, when the grounding ring is sleeved outside the coaxial line, the first pipe section is tightly attached to the outer conductor of the coaxial line, and the second pipe section is smoothly clamped in the clamping groove through the radial contraction elasticity of the pipe wall of the second pipe section and tightly attached to the clamping groove. Therefore, the grounding ring can be smoothly clamped in the clamping groove, can be tightly attached to the clamping groove, and improves the grounding stability of the coaxial line.

The embodiment of the present application further provides a grounding device, as shown in fig. 6, the grounding device includes a card slot 3, a coaxial line 2 and the above-mentioned grounding ring 1. The card slot 3 is connected to a housing, which may be a bottom case or a middle frame of the electronic device to which the grounding device belongs.

As shown in fig. 6, the grounding ring 1 is sleeved outside the coaxial wire 2, and since the inner diameter of the first tube segment 11 of the grounding ring 1 is smaller than the outer diameter of the outer conductor 21 of the coaxial wire 2, and the outer diameter of the outer conductor 21 is smaller than the inner diameter of the second tube segment 12 of the grounding ring 1, the inner wall of the first tube segment 11 and the outer wall of the outer conductor 21 are tightly attached, and a gap is formed between the inner wall of the second tube segment 12 and the outer wall of the outer conductor 21.

As shown in fig. 6, the second pipe section 12 of the ground ring 1 is located in the card slot 3, and since the outer diameter of the second pipe section 12 is slightly larger than the slot width of the card slot 3 at the position corresponding to the second pipe section 12, the second pipe section 12 and the card slot 3 are closely attached.

Therefore, the outer conductor 21 of the coaxial line 2 is stably contacted with the first pipe section 11 of the grounding ring 1, the second pipe section 12 of the grounding ring 1 is stably contacted with the clamping groove 3, the clamping groove 3 is connected with the shell, and the shell is used as a zero potential reference point to realize stable grounding of the coaxial line 2.

In one example, as shown in fig. 5, the length of the card slot 3 may match the length of the second tube section 12, e.g., the length of the card slot 3 is less than the length of the second tube section 12. In this scheme, the whole groove width of draw-in groove 3 can all be less than the external diameter of second pipeline section 12, and like this, second pipeline section 12 is located draw-in groove 3, and both closely laminate.

In another example, as shown in fig. 6, the length of the card slot 3 may be matched with the length of the coaxial wire 2, the slot width of the card slot 3 is larger than the outer diameter of the coaxial wire 2, and the slot width of the card slot 3 at the position corresponding to the second pipe section 12 is smaller than the outer diameter of the second pipe section 12, as for the slot width of the card slot 3 at the position not corresponding to the second pipe section 12 and the outer diameter of the second pipe section 12, the design may be arbitrary. Thus, the coaxial line 2 and the grounding ring 1 are both located in the card slot 3, and the second tube section 12 and the card slot 3 are tightly attached. The coaxial line 2 is positioned in the card slot 3, so that the wire arrangement of the grounding device is neat.

In order to promote the second pipe section 12 and the clamping groove 3 to be tightly attached, correspondingly, as shown in fig. 6, the clamping groove 3 has a projection 31 at a position corresponding to the second pipe section 12, so that the groove width of the clamping groove 3 at the position corresponding to the second pipe section 12 is smaller, and the second pipe section 12 can be tightly fitted when clamped in the clamping groove 3.

The projection 31 may be disposed at a position corresponding to the second pipe section 12 on one of the groove walls of the clamping groove 3, or the projection 31 may be disposed at a position corresponding to the second pipe section 12 on both of the groove walls of the clamping groove 3.

In one example, the tube wall of the second tube segment 12 is elastic and can be contracted in the radial direction due to the plurality of strip-shaped openings 121 formed in the tube wall of the second tube segment 12. In this way, when the second pipe section 12 is inserted into the notch 3, although the width of the notch 3 at the position corresponding to the mounting position of the second pipe section 12 is slightly smaller than the outer diameter of the second pipe section 12, the second pipe section 12 can be inserted into the notch 3 smoothly due to the contraction of the pipe wall.

Furthermore, after the second pipe section 12 is positioned in the clamping groove 3, due to the resilience of the pipe wall of the second pipe section 12, a tight fit between the second pipe section 12 and the clamping groove 3 is enabled.

In addition, the elasticity of the pipe wall of the second pipe section 12 can also absorb the assembly tolerance between the second pipe section 12 and the clamping groove 3, and further the clamping groove 3 is processed without high-precision processing, so the clamping groove 3 can be processed by an injection molding process, and compared with the CNC processing, the cost can be obviously saved.

In the solution shown in the present application, the grounding ring of the grounding device, as mentioned above, includes a first pipe section and a second pipe section, and the pipe wall of the second pipe section has a plurality of strip-shaped openings, so that the pipe wall of the second pipe section has elasticity and can contract along the radial direction. Thus, when the grounding ring is sleeved outside the coaxial line, the first pipe section is tightly attached to the outer conductor of the coaxial line, and the second pipe section is smoothly clamped in the clamping groove through the radial contraction elasticity of the pipe wall of the second pipe section and tightly attached to the clamping groove. Therefore, the grounding ring can be smoothly clamped in the clamping groove, can be tightly attached to the clamping groove, and improves the grounding stability of the coaxial line.

The embodiment of the application further provides electronic equipment which can be any electronic equipment applied to the coaxial line, such as a mobile phone, a tablet computer, a notebook computer, intelligent wearable equipment, a vehicle-mounted terminal and the like.

The grounding device of the electronic device comprises the grounding ring as described above, and the grounding ring comprises a first pipe section and a second pipe section, and the pipe wall of the second pipe section is provided with a plurality of strip-shaped openings, so that the pipe wall of the second pipe section has elasticity and can contract along the radial direction. Thus, when the grounding ring is sleeved outside the coaxial line, the first pipe section is tightly attached to the outer conductor of the coaxial line, and the second pipe section is smoothly clamped in the clamping groove through the radial contraction elasticity of the pipe wall of the second pipe section and tightly attached to the clamping groove. Therefore, the grounding ring can be smoothly clamped in the clamping groove, can be tightly attached to the clamping groove, and improves the grounding stability of the coaxial line.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A grounding ring (1), characterized in that the grounding ring (1) comprises a first pipe section (11) and a second pipe section (12);

the number of the first pipe sections (11) is two, the two first pipe sections (11) are respectively positioned at two ends of the second pipe section (12) along the axial direction, and the inner diameter of each first pipe section (11) is smaller than that of the second pipe section (12);

the pipe wall of the second pipe section (12) is provided with a plurality of strip-shaped openings (121), and the strip-shaped openings (121) are distributed along the axial direction of the second pipe section (12) and penetrate through the thickness direction of the second pipe section (12).

2. Grounding ring (1) according to claim 1 characterized in that the inner diameter of the first tube section (11) is smaller than the outer diameter of the outer conductor (21) of a coaxial wire (2), the outer diameter of the outer conductor (21) being smaller than the inner diameter of the second tube section (12);

the outer diameter of the second pipe section (12) is larger than the groove width of the clamping groove (3).

3. Grounding ring (1) according to claim 1, characterized in that the plurality of strip-shaped openings (121) are evenly arranged along the circumferential direction of the second tube section (12).

4. Grounding ring (1) according to claim 1 characterized in that the number of strip-shaped openings (121) is six.

5. A grounding ring (1) according to claim 1, characterized in that one end of the strip-shaped opening (121) is close to the first end of the second tube section (12) and the other end of the strip-shaped opening (121) is close to the second end of the second tube section (12).

6. Grounding ring (1) in accordance with claim 5 characterized in that the length of the second pipe section (12) is larger than the length of the first pipe section (11).

7. A grounding device, characterized in that the grounding device comprises a coaxial line (2), a card slot (3) and a grounding ring (1) according to any of claims 1 to 6, the coaxial line (2) comprising an outer conductor (21);

the inner diameter of the first pipe section (11) is smaller than the outer diameter of the outer conductor (21), the outer diameter of the outer conductor (21) is smaller than the inner diameter of the second pipe section (12), the grounding ring (1) is sleeved outside the outer conductor (21), and the inner wall of the first pipe section (11) is tightly attached to the outer wall of the outer conductor (21);

the outer diameter of the second pipe section (12) is larger than the groove width of the clamping groove (3), the second pipe section (12) is located in the clamping groove (3), and the outer wall of the second pipe section (12) is tightly attached to the inner wall of the clamping groove (3).

8. The grounding device according to claim 7, characterized in that the groove wall of the clamping groove (3) has a projection (31) at a position corresponding to the second pipe section (12).

9. The grounding device as claimed in claim 7, characterized in that the processing of the clamping groove (3) is injection molding.

10. An electronic device, characterized in that it comprises a grounding device according to any one of claims 7 to 9.

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