CN113138518A

CN113138518A - Projector

Info

Publication number: CN113138518A
Application number: CN202010061105.3A
Authority: CN
Inventors: 刘宪; 余新
Original assignee: Cineapro Laser Cinema Technology Beijing Co ltd
Current assignee: Cineapro Laser Cinema Technology Beijing Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-07-20
Anticipated expiration: 2040-01-19
Also published as: WO2021143552A1; CN113138518B

Abstract

The application discloses a projector, which comprises a safety processing module, a lens and a projector shell, wherein the safety processing module is connected with the lens and is contained in the inner space of the projector shell; the safety processing module comprises a shell upper cover and a shell side cover, wherein a through hole is formed in the joint of the shell side cover and the shell upper cover, and a threading protection assembly is arranged at the through hole; the threading protection component comprises a wire supporting frame which is connected to the side cover of the shell and is used for supporting the cable penetrating through the through hole; the wire pressing cover body comprises a wire pressing plate and a baffle plate which are connected with each other, the wire pressing plate is connected with the wire supporting frame to press a fixed cable, one end of the baffle plate is connected with the wire pressing plate, the other end of the baffle plate is connected with the upper cover of the shell, and the through hole is blocked.

Description

Projector

Technical Field

The present application relates to projection devices, and more particularly to a projector.

Background

The film projector security processing module (SPB) is the core part of the film projector and is the main carrier of film source anti-theft and authorization. In DCI authentication, it is required that a security processing module is protected from being detached and broken mechanically and physically, key parts such as PCBA and cable for internal control and signal transmission cannot be detected and peeped from the outside to prevent a chip source from being stolen, and it is also required that signal transmission cannot be performed by pulling the cable from the outside and breaking a projector. Signal transmission inside and outside the projector SPB module needs wire connection, and the threading hole of the SPB shell needs to consider other physical protection required by DCI besides meeting the threading function.

Disclosure of Invention

The application mainly provides a projector to solve the problem that the internal condition of equipment can be snooped from a through hole on a shell when a cable penetrates out of the shell of the equipment.

In order to solve the technical problem, the application adopts a technical scheme that: the projector comprises a safety processing module, a lens and a projector shell, wherein the safety processing module is connected with the lens and is contained in the inner space of the projector shell; the safety processing module comprises a shell upper cover and a shell side cover, wherein a through hole is formed in the joint of the shell side cover and the shell upper cover, and a threading protection assembly is arranged at the through hole; the threading protection assembly comprises: the wire supporting frame is connected to the side cover of the shell and used for supporting the cable penetrating through the through hole; the wire pressing cover body comprises a wire pressing plate and a baffle plate which are connected with each other, the wire pressing plate is connected with the wire supporting frame to press a fixed cable, one end of the baffle plate is connected with the wire pressing plate, the other end of the baffle plate is connected with the upper cover of the shell, and the through hole is blocked.

The beneficial effect of this application is:

the through hole is formed at the joint of the side cover of the shell and the upper cover of the shell, so that the threading operation is convenient;

the wire pressing plate and the wire support frame are arranged to press and fix the cable, so that the cable can be prevented from being pulled out from the through hole easily by external force;

the baffle is arranged to block the through hole, so that the internal condition of the equipment can be prevented from being snooped from the through hole, and the DCI authentication requirement is met.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:

FIG. 1 is an exploded view of the configuration of the thread protection assembly provided by the present application;

FIG. 2 is a schematic structural view of the thread protector assembly;

fig. 3 is a schematic structural view of the wire clamp.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" and "third" in the embodiments of the present application 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 defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The application provides a threading protection assembly, and referring to fig. 1 to 2, fig. 1 is an explosion diagram of the structure of the threading protection assembly provided by the application, and fig. 2 is a structural schematic diagram of the threading protection assembly.

The projector comprises a safety processing module, a lens and a projector shell, wherein the safety processing module is connected with the lens and is accommodated in the inner space of the projector shell; the safety processing module comprises a shell upper cover (not shown in the figure) and a shell side cover 2, wherein a through hole 21 is formed at the joint of the shell side cover 2 and the shell upper cover, and a threading protection assembly is arranged at the through hole 21 in a matching manner.

The threading protection assembly comprises a wire support frame 11 and a wire pressing cover body 12. The wire support frame 11 is connected on the side cover 2 of the shell and used for supporting the cable 15 penetrating through the wire support frame 21, the wire pressing cover body 12 comprises a wire pressing plate 122 and a baffle plate 121 which are connected with each other, the wire pressing plate 122 is connected with the wire support frame 11 to press the fixed cable 15, one end of the baffle plate 121 is connected with the wire pressing plate 122, the other end of the baffle plate is connected with the upper cover of the shell, and the through hole is blocked.

In this embodiment, set up threading protection subassembly in the casing upper cover and the casing side cap junction of safety processing module, can directly lift the casing upper cover and impress the cable in threading protection subassembly when needs, and need not carry out the threading operation, reduced the degree of difficulty that the cable penetrated the through-hole, improved user experience.

In the present embodiment, the cable is pressed against the wire holder 11 by the wire pressing plate 122, so that the cable can be prevented from being easily pulled out from the outside, and the structure and components inside the safety processing module can be prevented from being seen from the outside by providing the baffle plate to block the space above the cable.

Referring to fig. 3, further, the threading protection assembly further includes a wire clamp 16 disposed at the through hole of the side cover of the housing; the wire clamp comprises a frame body 16 and two guide arms 161, wherein the threading opening is formed in the frame body, the two guide arms 161 are arranged above the threading opening and are respectively connected to the opposite sides of the frame body 16, a wire inlet is formed between the two guide arms, and a cable enters the threading opening from the wire inlet. Space between the wall of threading mouth both sides can be accomplished with cable looks adaptation to accomplish to carry out preliminary centre gripping location to the cable, baffle 121 blocks the through-hole, inside in order to prevent to spy equipment from the through-hole.

The guide arm 161 forms an acute angle with the frame 16 to facilitate entry of the cable into the entry port along the guide arm 161. Need not to aim at the entrance with the cable promptly, slide the cable along arbitrary guide arm 44 and can make the cable get into the entrance, and then get into the threading mouth for the fastener is tentatively fixed a position the cable.

In this embodiment, the frame 16 is equipped with draw-in groove 162 deviating from the week side of threading 1, and the draw-in groove has improved the dismouting convenience between fastener and the side cap with the through-hole 21 joint on the side cap. The fastener can also adopt modes such as spiro union to connect in the through-hole department of side cap, and this application contrast does not do the restriction.

Furthermore, the threading protection assembly also comprises a cable pad 14 and a wire pressing pad 13, wherein the cable pad 14 is arranged between the wire supporting frame and the cable, and the wire pressing pad 13 is arranged between the wire pressing cover body 12 and the cable; wherein the hardness of the wire crimping pad 13 is less than the hardness of the cable pad 14. The cable pad 14 has higher hardness and can play a better supporting role, the hardness of the cable pad 14 is smaller than that of the wire support frame, and the cable pad 14 can be a silica gel pad; the hardness of line ball pad 13 is less to the protection cable is not crushed or pressed absolutely by the line ball lid, and line ball pad 13 plays elastic buffer's effect, and line ball pad 13 can be line ball silica gel.

The wire supporting frame is provided with a positioning column hole, the wire pressing plate 122 of the wire pressing cover body 12, the wire pressing pad 13 and the cable pad 14 are provided with alignment holes, and the assembly screw presses the cable on the wire supporting frame through the alignment holes and the positioning column hole so as to fix the cable.

In the present application, the through hole 21 is a rectangular opening. The cable that is row form passes the through-hole and can tentatively block and locate between the both sides wall of fastener to the gap between the lateral wall of minimize cable and through-hole, and then be favorable to reducing the gap between cable and the through-hole lateral wall and spy the inside risk of equipment. In other embodiments, the through hole may also have other shapes such as a triangle, which is not limited in this application.

Be different from prior art's condition, this application discloses a projector, through connecting the support line frame on the side cap that has the open-ended to and set up the line ball lid and be connected with the support line frame and establish the fixed cable of wearing to locate the open-ended with the pressure, thereby can prevent that the cable from being dragged out and leading to the impaired situation of signal transmission of equipment to take place from the opening by external force, and have the side to keep off the lid simultaneously and block off the opening, and then can prevent to spy the inside situation of equipment from the opening part, do not let out secret with the inside situation of guaranteeing equipment.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A projector is characterized by comprising a safety processing module, a lens and a projector shell, wherein the safety processing module is connected with the lens and is contained in the inner space of the projector shell; the safety processing module comprises a shell upper cover and a shell side cover, wherein a through hole is formed in the joint of the shell side cover and the shell upper cover, and a threading protection assembly is arranged at the through hole; the threading protection assembly comprises:

the wire supporting frame is connected to the side cover of the shell and used for supporting the cable penetrating through the through hole;

the wire pressing cover body comprises a wire pressing plate and a baffle plate which are connected with each other, the wire pressing plate is connected with the wire supporting frame to press a fixed cable, one end of the baffle plate is connected with the wire pressing plate, the other end of the baffle plate is connected with the upper cover of the shell, and the through hole is blocked.

2. The projector as claimed in claim 1, wherein the thread protector assembly further comprises a thread clamp disposed at the through hole of the case side cover; the wire clamp comprises a frame body and two guide arms, wherein the threading opening is formed in the frame body, the two guide arms are arranged above the threading opening and are respectively connected to two opposite sides of the frame body, a wire inlet is formed between the two guide arms, and a cable enters the threading opening from the wire inlet.

3. The projector as defined in claim 2, wherein the guide arms form an acute angle with the frame, the cables being able to enter the entrance along the guide arms.

4. The projector as claimed in claim 3, wherein a locking groove is formed around the frame body, and the locking groove is locked with the through hole formed in the side cover of the housing.

5. The projector as defined in claim 1, wherein the thread protection assembly further comprises a cable pad and a thread pressing pad, the cable pad being disposed between the thread support frame and the cable, the thread pressing pad being disposed between the thread pressing plate and the cable;

wherein the hardness of the wire pressing pad is less than the hardness of the cable pad.

6. The projector as claimed in claim 1, wherein the pressing line cover is connected to the line-supporting frame through a guide post.