CN219577741U - Communication electronic defense equipment - Google Patents

Abstract

The utility model discloses communication electronic defense equipment, belongs to the technical field of communication electronics, and can improve the heat dissipation efficiency of the communication electronic defense equipment. The communication electronic defense device comprises a box body and a cover body. The inside installation cavity that is formed with of box, and be equipped with the opening with installation cavity intercommunication. The cover body is arranged at the opening side of the box body and is connected with the box body. The cover body can rotate around the box body to open or close the opening. The lid includes filter screen and installing frame, and the installing frame encircles the circumference setting of filter screen. One of the two surfaces of the filter screen and the mounting frame, which are close to each other, is provided with a buckle, the other surface is provided with a clamping groove, and the buckle is positioned in the clamping groove and is detachably connected with the clamping groove. The filter screen can elastically deform under the action of the force in the first direction, so that the buckle is separated from the clamping groove, and the first direction is parallel to the surface of the cover body, which is far away from the box body. The communication electronic defending equipment is used for defending the communication electronic equipment.

Description

Communication electronic defense equipment

Technical Field

The utility model relates to the technical field of communication electronics, in particular to communication electronic defense equipment.

Background

In the field of communications, a signal is a physical quantity representing a message, e.g., an electrical signal may represent a different message by a change in amplitude, frequency, phase; interference refers to damage to the reception of a useful signal; interference is generally caused by crosstalk, which is two of the following: a coupling phenomenon between two signal lines electronically; radio interference: the actions of destroying communication and preventing broadcasting station signals are achieved by transmitting radio signals to reduce the signal-to-noise ratio.

At present, a communication electronic defending device is generally adopted to physically defend the communication electronic device so as to improve the anti-interference capability of the communication electronic device. The communication electronic defense device generally radiates heat in a mode of opening radiating holes, however, the radiating holes are easy to be blocked, so that the radiating efficiency of the communication electronic defense device is poor.

Disclosure of Invention

The utility model provides communication electronic defense equipment, which can improve the heat dissipation efficiency of the communication electronic defense equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a communication electronic defense device, which comprises a box body and a cover body.

The inside installation cavity that is formed with of box, and be equipped with the opening with installation cavity intercommunication on the box. The cover body is arranged at the opening side of the box body and is connected with the box body. The cover body can rotate around the box body to open or close the opening. The lid includes filter screen and installing frame, and the installing frame encircles the circumference setting of filter screen. One of the two surfaces of the filter screen and the mounting frame, which are close to each other, is provided with a buckle, the other surface is provided with a clamping groove, and the buckle is positioned in the clamping groove and is detachably connected with the clamping groove. The filter screen can elastically deform under the action of the force in the first direction, so that the buckle is separated from the clamping groove, and the first direction is parallel to the surface of the cover body, which is far away from the box body.

The communication electronic defense device provided by the utility model comprises the box body and the cover body, wherein the cover body comprises the filter screen and the mounting frame, and the communication electronic defense device can radiate heat through the filter screen. It can be understood that, compared with the heat dissipation holes arranged on the communication electronic defense device, the number of the filter holes on the filter screen is more, so that the heat dissipation efficiency of the communication electronic defense device can be improved. In addition, the filter screen and the mounting frame are detachably connected through the buckle and the clamping groove, and the filter screen can be elastically deformed under the action of the force in the first direction. Therefore, when the impurities such as dust adsorbed on the filter screen are more, the filter screen can be separated from the clamping groove by applying external force on the first direction, so that the filter screen is conveniently detached from the mounting frame, the filter screen can be replaced and cleaned, and the heat dissipation efficiency of the communication electronic defense equipment is improved.

Further, the clamping groove is arranged on the surface of the filter screen, which is close to the mounting frame, and the buckle is arranged on the surface of the mounting frame, which is close to the filter screen; the filter screen includes filter screen body and frame, and the frame encircles the circumference setting of filter screen body, and is connected with the filter screen body. The filter screen body is provided with a filter hole, and the clamping groove is arranged on the surface of the frame, which is far away from the filter screen body.

Further, the buckle comprises a connecting part and a clamping part. The connecting portion is columnar, one end of the connecting portion is connected with the mounting frame, and the other end of the connecting portion is connected with the clamping portion. The clamping part is positioned in the clamping groove, the caliber of the notch of the clamping groove is smaller than the maximum size of the clamping part in the radial direction of the groove of the clamping groove, and the caliber of the notch of the clamping groove is larger than or equal to the radial size of the connecting part in the radial direction of the notch of the clamping groove.

Further, along the extending direction of the connecting portion, the connecting portion points to the clamping portion, and the size of one end, away from the connecting portion, of the clamping portion in the radial direction of the notch of the clamping groove is gradually reduced.

Further, the orthographic projection of the boundary of the clamping portion on the reference surface is an arc, wherein the reference surface is parallel to the extending direction of the connecting portion.

Further, the cover body further comprises a guide frame, and the guide frame is arranged on one side, close to the box body, of the installation frame and is connected with the installation frame. The guide frame is arranged around the circumference of the filter screen, and the orthographic projection on the surface of the installation frame, which is close to the box body, is positioned in the boundary of the installation frame.

Further, the box comprises a bottom plate and a side plate, wherein the side plate is arranged on one side of the bottom plate, surrounds the edge of the bottom plate and encloses an installation cavity with the bottom plate. Wherein, curb plate and bottom plate detachable connection.

Further, the box body further comprises a connecting piece and a fastening piece, wherein the connecting piece is arranged on one side of the side plate away from the mounting cavity and is connected with the bottom plate. The connecting piece is provided with an avoidance hole, the side plate is provided with a threaded hole, and the fastener is arranged in the avoidance hole and the threaded hole in a penetrating mode and is in threaded connection with the threaded hole.

Further, the connecting piece comprises a fixing plate and a connecting plate, and the avoiding holes are formed in the connecting plate. The fixed plate is connected with the bottom plate, the connecting plate is connected with the fixed plate, and the connecting plate can rotate towards the direction that is close to or far away from the curb plate relative to the fixed plate.

Further, one side of the bottom plate, which is close to the side plate, is provided with a limiting protrusion, and the limiting protrusion is positioned in the mounting cavity and used for limiting the side plate and the bottom plate to move relatively in a second direction, and the second direction is parallel to the surface, away from the side plate, of the bottom plate.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

Figure 1 is an exploded view of a communication electronic defense device provided in some embodiments of the present utility model;

FIG. 2 is a block diagram of a box according to some embodiments of the present utility model;

figure 3 is an enlarged view of a communication electronic defense device provided by some embodiments of the present utility model at a connector;

FIG. 4 is a block diagram of a fastener provided in some embodiments of the utility model;

FIG. 5 is a block diagram of a connector according to some embodiments of the present utility model;

FIG. 6 is a block diagram of a base plate provided in some embodiments of the utility model;

FIG. 7 is an exploded view of a cover according to some embodiments of the present utility model;

FIG. 8 is a cross-sectional view of a cover at a snap-fit position according to some embodiments of the present utility model;

FIG. 9 is a block diagram of a filter screen provided in some embodiments of the utility model;

fig. 10 is an enlarged view of a cover at a snap according to some embodiments of the present utility model.

Reference numerals:

100-communication electronic defense device; 1-a box body; 11-a mounting cavity; 12-opening; 13-a bottom plate; 131-limiting protrusions; 14-side plates; 141-a threaded hole; 142-handle groove; 15-connecting piece; 151-avoiding holes; 152-a fixed plate; 153-connection plate; 16-a fastener; 2-a cover; 21-a handle; 22-a filter screen; 221-a clamping groove; 222-a filter screen body; 223-frame; 23-mounting a frame; 231-snap; 2311-a connection; 2312-a clamping part; 24-a guide frame; 3-hinge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In practical applications, the absolute parallel or vertical effect is difficult to achieve due to limitations in equipment accuracy or installation errors. The description of "vertical", "parallel" or "same direction" in the present utility model is not an absolute limitation condition, but means that the vertical or parallel structure arrangement can be realized within the preset error range, and the corresponding preset effect is achieved, so that the technical effect of limiting the features can be maximally realized, and the corresponding technical scheme is convenient to implement, and has high feasibility. For example, "vertical" includes absolute vertical and near vertical, where the acceptable deviation range for near vertical may also be, for example, deviations within 5 °. "parallel" includes absolute parallel and approximately parallel, wherein the range of acceptable deviations from approximately parallel may also be deviations within 5 °, for example. "homodromous" includes absolute homodromous and approximately homodromous, wherein the acceptable deviation range of the approximately homodromous can be, for example, a deviation within 5 °.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In embodiments of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The wireless local area network is characterized in that a computer is connected with the network without using a communication cable, and is connected in a wireless mode, so that the construction of the network and the movement of a terminal are more flexible. Communication electronics in wireless local area network electronic communications are capable of receiving signals and transmitting them again after processing. The anti-interference capability of the communication electronic equipment is generally poor, and the use requirements of people cannot be well met. To improve the anti-interference capability of the communication electronic device, the communication electronic device is typically provided with a communication electronic defense device.

In the related art, a communication electronic defending device includes a housing in which a mounting cavity for mounting the communication electronic device is formed. On the basis, the shell is provided with radiating holes, and the radiating holes are used for radiating heat generated by the communication electronic equipment during operation. However, the heat dissipation holes are easy to be blocked, and the difficulty of cleaning after blocking is high, so that the heat dissipation efficiency of the communication electronic defense device is poor.

Based on this, referring to fig. 1, fig. 1 is an exploded view of a communication electronic defense device according to some embodiments of the present utility model. The utility model provides a communication electronic defense device 100, which can improve the heat dissipation efficiency of the communication electronic defense device 100. The communication electronic defence device 100 comprises a housing 1.

As shown in fig. 2, fig. 2 is a block diagram of a box according to some embodiments of the present utility model. The inside of the box body 1 is provided with a mounting cavity 11, and the box body 1 is provided with an opening 12 communicated with the mounting cavity 11. Illustratively, as shown in fig. 2, the case 1 includes a bottom plate 13 and a side plate 14, the side plate 14 being disposed at one side of the bottom plate 13, surrounding an edge of the bottom plate 13, and enclosing a mounting cavity 11 with the bottom plate 13.

The bottom plate 13 and the side plate 14 may be connected to each other by welding, bonding, or the like in a non-detachable manner, or may be connected to each other by a screw connection, a snap 231 connection, or the like in a detachable manner. Specifically, the selection may be performed according to actual situations, and this disclosure is not limited specifically.

Illustratively, as shown in FIG. 1, the side panels 14 are removably connected to the bottom panel 13. In this way, the side plate 14 can be detached from the bottom plate 13 when the communication electronic device is mounted to the bottom plate 13, so as to avoid the side plate 14 from interfering with the mounting process. In this way, the difficulty in mounting the communication electronic equipment can be reduced, and the mounting efficiency of the communication electronic equipment can be improved. And the communication electronic equipment is more firmly installed, and the installation reliability of the communication electronic equipment can be improved.

It will be appreciated that there are many possible ways of detachably connecting the side plate 14 and the bottom plate 13, and this may be specifically selected according to practical situations, which is not specifically limited in this disclosure.

Illustratively, as shown in fig. 3, fig. 3 is an enlarged view of a communication electronic defense device at a connection provided by some embodiments of the present utility model. The case 1 further includes a connecting member 15, and the connecting member 15 is disposed on a side of the side plate 14 away from the mounting cavity 11 and is connected to the bottom plate 13. With reference thereto, referring to fig. 4, fig. 4 is a block diagram of a fastener according to some embodiments of the present utility model. The box 1 further comprises a fastener 16, the connecting piece 15 is provided with an avoidance hole 151, the side plate 14 is provided with a threaded hole 141, and the fastener 16 is arranged in the avoidance hole 151 and the threaded hole 141 in a penetrating manner and is in threaded connection with the threaded hole 141. Thus, the side plate 14 and the bottom plate 13 can be detachably connected, and the structure is simple and easy to realize.

The connecting member 15 may be a metal member or a plastic member, and may be specifically selected according to the actual situation, which is not specifically limited in the present disclosure.

Fig. 5 is a block diagram of a connector according to some embodiments of the present utility model, as shown in fig. 5. The connection member 15 may include a fixing plate 152 and a connection plate 153, in which case the escape hole 151 is provided on the connection plate 153. The fixing plate 152 is connected to the bottom plate 13 (shown in fig. 3), the connection plate 153 is connected to the fixing plate 152, and the connection plate 153 is rotatable with respect to the fixing plate 152 in a direction approaching or moving away from the side plate 14 (shown in fig. 3).

In this way, when the side plate 14 is assembled to the bottom plate 13, an external force can be applied to rotate the connection plate 153 in a direction away from the side plate 14 to reduce the risk of the connection plate 153 interfering with the side plate 14, thereby reducing the risk of the connection plate 153 interfering with the installation process of the side plate 14. In this way, the difficulty in assembling the case 1 is advantageously reduced, thereby improving the efficiency of assembling the case 1.

It will be appreciated that the fixing plate 152 may be connected to the base plate 13 by any one of welding, bonding, screw connection, fastening 231 connection, riveting, etc., and may be specifically selected according to practical situations, which is not specifically limited in the present disclosure.

Illustratively, as shown in fig. 6, fig. 6 is a block diagram of a base plate provided by some embodiments of the present utility model. The side of the bottom plate 13 near the side plate 14 (as shown in fig. 3) may further be provided with a limiting protrusion 131, where the limiting protrusion 131 is located in the mounting cavity 11 (as shown in fig. 2) and is used to limit the relative movement of the side plate 14 and the bottom plate 13 in a second direction, and the second direction is parallel to the surface of the bottom plate 13 far from the side plate 14. For example, the edge of the side of the bottom plate 13 near the side plate 14 is provided with a step, and the side plate 14 is provided on the step surface.

In this way, the stopper projection 131 can function as a guide to guide the side plate 14 to the installation position when the side plate 14 is installed to the bottom plate 13. In this way, the difficulty in assembling the case 1 can be further reduced, and the efficiency in assembling the case 1 can be improved. In addition, the limiting protrusion 131 can limit the relative movement of the side plate 14 and the bottom plate 13 in the second direction, so that the risk of shaking the side plate 14 relative to the bottom plate 13 can be reduced, the stability of mounting the side plate 14 and the bottom plate 13 is improved, and the side plate 14 and the bottom plate 13 are more firmly connected.

As shown in fig. 1, a handle groove 142 may be further disposed on the side plate 14, where the handle groove 142 is disposed on a side of the side plate 14 away from the mounting cavity 11 (as shown in fig. 2). That is, the notch of the handle groove 142 is provided on the surface of the side plate 14 remote from the mounting cavity 11. It will be appreciated that the side panels 14 may be readily accessed by the handle slots 142 when the side panels 14 are attached to the bottom panel 13 or removed from the bottom panel 13 to facilitate placement of the side panels 14 on the bottom panel 13 or removal of the side panels from the bottom panel 13. In this way, the assembling and disassembling efficiency of the side plate 14 and the bottom plate 13 is improved, and the use experience of a user is improved.

Illustratively, as shown in fig. 1, the side plate 14 is provided with two handle grooves 142, and the two handle grooves 142 are disposed opposite to each other and located on opposite sides of the mounting cavity 11.

As shown in fig. 1, the electronic communication defense device 100 may further include a cover 2, and the cover 2 is disposed on the opening side of the case 1 and connected to the case 1. The case 2 being disposed on the opening side of the case 1 means that the case 2 is disposed on the side of the case 1 where the opening 12 (shown in fig. 2) is provided. For example, in the case where the case 1 includes the bottom plate 13 and the side plate 14, the cover 2 is provided on the side of the side plate 14 away from the bottom plate 13.

On the basis of this, the cover 2 is rotatable around the case 1 to open or close the opening 12. In this way, the cleaning and maintenance of the communication electronics in the installation cavity 11 is facilitated.

Illustratively, as shown in fig. 1, the communication electronic defending apparatus 100 further includes a hinge 3, and the cover 2 is connected to the case 1 through the hinge 3. The device is simple in structure and easy to realize. In the case where the case 1 includes the bottom plate 13 and the side plate 14, one end of the hinge 3 is connected to one end of the side plate 14 away from the bottom plate 13, and the other end is connected to the cover 2.

As shown in fig. 1, a handle 21 may be further disposed on the cover 2, where the handle 21 is disposed at an end of the cover 2 away from the hinge 3. In this way, the operation of the cover 2 is facilitated, and the cover 2 is rotated around the case 1 to open or close the opening 12. In this way, the user experience can be improved.

In some embodiments, as shown in fig. 7, fig. 7 is an exploded view of a cover provided in some embodiments of the present utility model. The cover body 2 includes a filter screen 22 and a mounting frame 23, and the mounting frame 23 is disposed around the circumference of the filter screen 22. Fig. 8 is a cross-sectional view of a cover at a buckle according to some embodiments of the present utility model, as shown in fig. 8. One of the two surfaces of the filter screen 22 and the mounting frame 23, which are close to each other, is provided with a buckle 231, the other is provided with a clamping groove 221, and the buckle 231 is positioned in the clamping groove 221 and is detachably connected with the clamping groove 221.

That is, the clamping groove 221 may be disposed on the surface of the filter screen 22 close to the mounting frame 23, and the buckle 231 may be disposed on the surface of the mounting frame 23 close to the filter screen 22; the buckle 231 may be disposed on a surface of the filter screen 22 adjacent to the mounting frame 23, and the slot 221 may be disposed on a surface of the mounting frame 23 adjacent to the filter screen 22. Specifically, the selection may be performed according to actual situations, and this disclosure is not limited specifically.

Illustratively, as shown in fig. 8, the clamping groove 221 is disposed on a surface of the filter screen 22 adjacent to the mounting frame 23, and the buckle 231 is disposed on a surface of the mounting frame 23 adjacent to the filter screen 22.

It is understood that the surface of the filter 22 near the mounting frame 23 may be provided with a plurality of clamping grooves 221, and the plurality of clamping grooves 221 are spaced apart along the circumferential direction of the filter 22. In this case, a plurality of buckles 231 are provided on the surface of the mounting frame 23 adjacent to the filter screen 22, and each buckle 231 corresponds to one of the slots 221 and is located in the corresponding slot 221. Through setting up a plurality of draw-in grooves 221 and a plurality of buckle 231, can improve the joint strength of filter screen 22 and installing frame 23 to make filter screen 22 and installing frame 23 installation more firm, so, can reduce the risk that filter screen 22 drops from installing frame 23, be favorable to improving user's use experience.

Fig. 9 is a block diagram of a filter screen according to some embodiments of the present utility model, as shown in fig. 9. Filter 22 may include a filter body 222 and a frame 223, with frame 223 disposed circumferentially around filter body 222 and connected to filter body 222. The filter body 222 is provided with a filter hole, and the clamping groove 221 (as shown in fig. 8) is arranged on the surface of the frame 223 away from the filter body 222. In this way, the difficulty in opening the clamping groove 221 is reduced, so that the difficulty in manufacturing the filter screen 22 is reduced.

Illustratively, bezel 223 is a plastic bezel. In this case, a plastic frame may be formed on the edge of the filter body 222 by injection molding. In this way, the filter body 222 and the frame 223 can be formed as a single structure. In this way, the structural strength of the filter screen 22 can be improved, the risk of damage to the filter screen 22 is reduced, and the service life of the filter screen 22 is prolonged.

It should be noted that, the filter 22 may be elastically deformed under the force of the first direction, so that the buckle 231 is separated from the slot 221, where the first direction is parallel to the surface of the cover 2 away from the case 1.

The communication electronic defense device 100 provided by the utility model comprises a box body 1 and a cover body 2, wherein the cover body 2 comprises a filter screen 22 and a mounting frame 23, and the communication electronic defense device 100 can radiate heat through the filter screen 22. It can be appreciated that the number of the filtering holes on the filtering net 22 is greater than the number of the heat dissipation holes on the communication electronic defense device 100, so that the heat dissipation efficiency of the communication electronic defense device 100 can be improved. In addition, the filter 22 and the mounting frame 23 are detachably connected by the clip 231 and the clip groove 221, and the filter 22 can be elastically deformed under the action of the force in the first direction. In this way, when the impurities such as dust adsorbed on the filter screen 22 are more, the buckle 231 and the clamping groove 221 can be separated only by applying an external force on the filter screen 22 in the first direction, so that the filter screen 22 is conveniently detached from the mounting frame 23, which is beneficial to replacing and cleaning the filter screen 22, and the heat dissipation efficiency of the communication electronic defense device 100 is improved.

In some embodiments, as shown in fig. 10, fig. 10 is an enlarged view of a cover at a buckle according to some embodiments of the present utility model. The clip 231 includes a connection portion 2311 and a clip portion 2312. The connection portion 2311 has a columnar shape, and has one end connected to the mounting frame 23 and the other end connected to the engaging portion 2312. That is, the engaging portion 2312 is connected to the mounting frame 23 via the connecting portion 2311.

The connection portion 2311 may be a cylinder or a polygon, and may be specifically selected according to practical situations, which is not specifically limited in the present disclosure.

Illustratively, as shown in fig. 10, the connection portion 2311 is integrally formed with the clamping portion 2312, and in this way, the connection strength of the connection portion 2311 and the clamping portion 2312 can be improved, thereby improving the structural strength of the buckle 231. In this way, the risk of breakage of the clip 231 can be reduced, which is advantageous in improving the reliability of connection between the clip 231 and the card slot 221.

As shown in fig. 8, the engaging portion 2312 is located in the engaging groove 221, and the caliber of the notch of the engaging groove 221 is smaller than the largest dimension of the engaging portion 2312 in the radial direction of the groove of the engaging groove 221, and is larger than or equal to the size of the connecting portion 2311 in the radial direction of the notch of the engaging groove 221. For example, in the case where the connection portion 2311 is cylindrical, the aperture of the notch of the clip groove 221 is smaller than the maximum dimension of the clip portion 2312 in the radial direction of the connection portion 2311, and is greater than or equal to the radial dimension of the connection portion 2311.

In this way, the notch of the clamping groove 221 can play a limiting role on the clamping portion 2312, so that the risk that the clamping portion 2312 is separated from the clamping groove 221 is reduced. In this way, the reliability of the connection between the clip 231 and the clip groove 221 can be further improved.

In this case, when an external force is applied to the filter 22 in the first direction, the clamping groove 221 provided on the filter 22 is elastically deformed along with the filter 22, so that the clamping portion 2312 is separated from the clamping groove 221, thereby separating the clamp 231 from the clamping groove 221.

In some embodiments, as shown in fig. 8, along the extending direction of the connection portion 2311, and the connection portion 2311 points to the clamping portion 2312, the dimension of the end of the clamping portion 2312 away from the connection portion 2311 in the radial direction of the notch of the clamping groove 221 is gradually reduced. For example, in the case where the connection portion 2311 is cylindrical, the dimension of the end of the engagement portion 2312 away from the connection portion 2311 in the radial direction of the connection portion 2311 gradually decreases along the axial direction of the connection portion 2311 and is directed toward the engagement portion 2312 by the connection portion 2311. That is, the end of the engaging portion 2312 remote from the connecting portion 2311 is approximately conical or hemispherical.

In this way, when the filter screen 22 and the mounting frame 23 are assembled, the end of the engaging portion 2312 away from the connecting portion 2311 can serve as a guide to guide the engaging portion 2312 into the engaging groove 221. Further, the engaging portion 2312 more easily expands the notch of the card slot 221, so that the engaging portion 2312 can more easily enter the card slot 221. Thus, the difficulty in assembling the filter screen 22 and the mounting frame 23 can be reduced, and the assembling efficiency of the filter screen 22 and the mounting frame 23 can be improved.

The orthographic projection of the boundary of the clamping portion 2312 on the reference surface may be an arc, and the reference surface is parallel to the extending direction of the connecting portion 2311. For example, the engaging portion 2312 may be a third sphere, a hemisphere, a two-thirds sphere, a three-quarter sphere, or the like, and may be specifically selected according to practical situations, which is not specifically limited in the present disclosure.

In some embodiments, as shown in fig. 7, the cover 2 further includes a guide frame 24, where the guide frame 24 is disposed on a side of the mounting frame 23 near the case 1 and is connected to the mounting frame 23. The guide frame 24 is disposed around the circumference of the filter screen 22, and the orthographic projection on the surface of the mounting frame 23 near the case 1 is located within the boundary of the mounting frame 23.

In this way, when assembling the filter 22 and the mounting frame 23, the filter 22 may be placed on the inner side of the guide frame 24, and then the filter 22 is elastically deformed by applying a force in the first direction to the filter 22, so that the fastener 231 enters the slot 221, so as to complete the assembly of the filter 22 and the mounting frame 23.

During assembly of filter 22 and mounting frame 23, guide frame 24 is capable of initially guiding and positioning filter 22, confining filter 22 to the vicinity of the mounting location relative to mounting frame 23. In this way, the buckle 231 (shown in fig. 8) and the clamping groove 221 (shown in fig. 8) can be initially aligned, so that the subsequent insertion of the buckle 231 into the clamping groove 221 is facilitated, and the assembly of the filter screen 22 and the mounting frame 23 is completed. That is, by providing the guide frame 24, the difficulty in assembling the filter screen 22 and the mounting frame 23 can be reduced, and the efficiency in assembling the filter screen 22 and the mounting frame 23 can be improved.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The present utility model is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A communications electronic defence device, comprising:

the box body is internally provided with a mounting cavity, and an opening communicated with the mounting cavity is formed in the box body;

the cover body is arranged at the opening side of the box body and is connected with the box body; the cover body can rotate around the box body so as to open or close the opening; the cover body includes:

a filter screen;

the mounting frame is arranged around the circumference of the filter screen; one of the two surfaces of the filter screen and the mounting frame, which are close to each other, is provided with a buckle, and the other surface is provided with a clamping groove; the buckle is positioned in the clamping groove and is detachably connected with the clamping groove;

the filter screen can elastically deform under the action of force in a first direction, so that the buckle is separated from the clamping groove, and the first direction is parallel to the surface of the cover body away from the box body.

2. The electronic communication defense device of claim 1 wherein the clip groove is disposed on a surface of the filter screen proximate the mounting frame and the clip is disposed on a surface of the mounting frame proximate the filter screen; the filter screen includes:

the filter screen comprises a filter screen body, wherein a filter hole is formed in the filter screen body;

the frame is arranged around the circumference of the filter screen body and is connected with the filter screen body; the clamping groove is formed in the surface, away from the filter screen body, of the frame.

3. The communications electronic defense device of claim 2 wherein the clasp comprises:

the connecting part is columnar, and one end of the connecting part is connected with the mounting frame;

the clamping part is connected with the other end of the connecting part and is positioned in the clamping groove; the caliber of the notch of the clamping groove is smaller than the largest dimension of the clamping part in the radial direction of the notch of the clamping groove, and is larger than or equal to the size of the connecting part in the radial direction of the notch of the clamping groove.

4. The communication electronic defense device according to claim 3, wherein the dimension of the end of the engaging portion away from the connecting portion in the radial direction of the notch of the card slot is gradually reduced along the extending direction of the connecting portion and directed from the connecting portion to the engaging portion.

5. The electronic defense device of claim 4 wherein the orthographic projection of the boundary of the clip portion on a reference surface is an arc, the reference surface being parallel to the direction of extension of the connection portion.

6. The communications electronic defense device of any one of claims 1-5 wherein the cover further comprises:

the guide frame is arranged on one side, close to the box body, of the mounting frame and is connected with the mounting frame; the guide frame is arranged around the circumference of the filter screen; the orthographic projection of the guide frame on the surface of the mounting frame, which is close to the box body, is positioned in the boundary of the mounting frame.

7. The communications electronic defense device of any one of claims 1-5 wherein the housing comprises:

a bottom plate;

the side plate is arranged on one side of the bottom plate and surrounds the edge of the bottom plate; the side plates and the bottom plate enclose the mounting cavity; the side plates are detachably connected with the bottom plate.

8. The communications electronic defense device of claim 7 wherein the side plates are provided with threaded holes and the case further comprises:

the connecting piece is arranged on one side of the side plate, which is far away from the mounting cavity, and is connected with the bottom plate; the connecting piece is provided with an avoidance hole;

the fastener is arranged in the avoidance hole and the threaded hole in a penetrating mode and is in threaded connection with the threaded hole.

9. The communications electronic defense device of claim 8 wherein the connector comprises:

the fixed plate is connected with the bottom plate;

the connecting plate is connected with the fixed plate, and the avoiding holes are formed in the connecting plate; the connecting plate can rotate relative to the fixed plate in a direction approaching or separating from the side plate.

10. The communication electronic defense device of claim 7 wherein a side of the bottom plate adjacent to the side plate is provided with a limit protrusion; the limiting protrusion is located in the mounting cavity and used for limiting the relative movement of the side plate and the bottom plate in a second direction, and the second direction is parallel to the surface, away from the side plate, of the bottom plate.