CN217116254U - Security protection equipment - Google Patents

Abstract

The application provides security protection equipment, including preceding shell subassembly, backshell subassembly, lens group, mainboard subassembly and first heat conduction metalwork. Preceding shell subassembly and backshell subassembly are injectd and are held the chamber, and the backshell subassembly includes backshell plastic part and backshell heat dissipation metalwork, and the lens group is installed in the mainboard subassembly, and the mainboard subassembly sets up and is holding in the chamber, and first heat conduction metalwork is connected with the mainboard subassembly, and first heat conduction metalwork still with backshell heat dissipation metalwork contact to with the heat transfer of mainboard subassembly to backshell heat dissipation metalwork. Make the heat that mainboard subassembly produced at the during operation, can transmit to backshell heat dissipation metalwork through first heat conduction metalwork, rethread backshell heat dissipation metalwork further gives off outside equipment. The security protection equipment of this application embodiment can dispel the heat to mainboard subassembly fast effectively to do benefit to and prevent the inaccurate, equipment trouble scheduling problem of face identification that equipment overheat leads to.

Description

Security protection equipment

Technical Field

The application relates to the field of security products, in particular to security equipment.

Background

This section provides background information related to the present application and is not necessarily prior art.

At present, the face recognition technology is applied to some security devices, and a lens is one of core components in the face recognition device. In the related technology, the lens component is simple in configuration, the lens generates heat in the using process, the equipment generates an overheating phenomenon after being used for a long time, the problems of inaccurate face recognition, equipment failure and the like occur, and the service life and the stability of the equipment are influenced.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a security protection equipment, optimizes the heat radiation structure scheme, is favorable to solving the easy overheated problem of equipment. The specific technical scheme is as follows:

the embodiment of the application provides a security protection equipment, includes: a front housing assembly; the front shell assembly and the rear shell assembly define an accommodating cavity, and the rear shell assembly comprises a rear shell plastic part and a rear shell heat dissipation metal part connected with the rear shell plastic part; a lens group; the lens group is arranged on the main board assembly, and the main board assembly is arranged in the accommodating cavity; the first heat conduction metal piece is arranged in the accommodating cavity and connected with the main board assembly, and the first heat conduction metal piece is in contact with the rear shell heat dissipation metal piece.

The security protection equipment of this application embodiment, be provided with backshell heat dissipation metalwork in its backshell subassembly, set up first heat conduction metalwork in the chamber that holds that is injectd by preceding shell subassembly and backshell subassembly simultaneously, first heat conduction metalwork is connected with the mainboard subassembly, first heat conduction metalwork still with backshell heat dissipation metalwork contact, therefore, make the mainboard subassembly in the heat that the during operation produced, can transmit to backshell heat dissipation metalwork through first heat conduction metalwork, rethread backshell heat dissipation metalwork further gives off outside equipment. Therefore, the security protection equipment provided by the embodiment of the application can quickly and effectively dissipate heat of the mainboard assembly, so that the problems of inaccurate face recognition, equipment failure and the like caused by equipment overheating are favorably prevented, and the service life and the stability of the equipment are favorably improved.

In some embodiments of the present application, the front housing assembly includes a front housing plastic part and a front housing heat dissipation metal part connected to the front housing plastic part; the security protection equipment further comprises a lamp panel assembly and a second heat-conducting metal piece, the lamp panel assembly is arranged between the mainboard assembly and the front shell assembly, the second heat-conducting metal piece is connected with the lamp panel assembly, and the second heat-conducting metal piece is further contacted with the front shell heat-radiating metal piece.

In some embodiments of the present application, the lens group includes a first lens and a second lens, the first lens and the second lens are lenses adopting different identification manners; the mainboard assembly comprises a first mainboard and a second mainboard, a first lens is installed on the first mainboard, a second lens is installed on the second mainboard, the second mainboard is located between the first mainboard and the rear shell assembly, a first heat-conducting metal piece is arranged between the first mainboard and the second mainboard, the first heat-conducting metal piece comprises a main body portion, the main body portion is in contact with the first mainboard, and the main body portion is in contact with the second mainboard.

In some embodiments of the present application, the lens group further includes a third lens, the third lens is a lens with the first lens and the second lens adopt different identification modes, the third lens is installed in the first mainboard, the first dodging groove for dodging the second lens is provided on the first mainboard, the second lens passes the first dodging groove, the second dodging groove is provided on the main body portion, the second dodging groove and the first dodging groove are arranged relatively.

In some embodiments of the present application, the main body portion includes flat area, supporting area and overlap area, the supporting area with the flat area connect and to the direction uplift at first mainboard place, the overlap area with the flat area connect and to the direction protrusion at second mainboard place, the supporting area with first mainboard pastes tightly, the supporting area is through wearing to establish the supporting area with the connecting piece of first mainboard is fixed in the preceding shell subassembly, the second mainboard passes through the connecting piece to be fixed in the preceding shell subassembly, the overlap area with second mainboard looks butt.

In some embodiments of the present application, the security device further includes a first thermal pad disposed between the first main board and the slab region.

In some embodiments of the present application, the first heat-conducting metal piece further includes a fitting portion disposed at two opposite edges of the main body portion, the fitting portion is tightly attached to the rear case heat-dissipating metal piece, and the shape of the fitting portion is adapted to an inner wall surface of the rear case heat-dissipating metal piece.

In some embodiments of this application, security protection equipment still includes two first camera lens sealing members, two first camera lens sealing member suit respectively in first camera lens with the third camera lens outside, first camera lens sealing member one end is supported first mainboard, and the other end is supported the inner wall of preceding shell subassembly.

In some embodiments of this application, security protection equipment still includes second camera lens sealing member, second camera lens sealing member suit is in the second camera lens outside, second camera lens sealing member one end is supported the second mainboard, the other end supports the inner wall of preceding shell subassembly.

In some embodiments of the present application, the first lens sealing element is a cylindrical structure, a plurality of layers of sealing teeth are circumferentially arranged on the inner side of the first lens sealing element, the sealing teeth are closely abutted to the first lens or the third lens, a hollow structure is further arranged at the inner end of the first lens sealing element, and the hollow structure is arranged at intervals along the circumferential direction.

In some embodiments of the present application, the second lens seal is a cylindrical structure, the second lens seal includes a first section and a second section, the first section inner diameter is smaller than the second section inner diameter, the second section abuts on the second main plate, the first section abuts on the inner side of the front shell assembly, and the first section is gap-sealed with the outer side of the second lens.

In some embodiments of this application, second heat conduction metalwork is the metal sheet the lamp plate subassembly with be provided with the second heat conduction pad between the second heat conduction metalwork, the second heat conduction pad is the wedge, so that the lamp plate subassembly for preceding shell subassembly is the contained angle setting.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings. In the drawings:

FIG. 1 is a partial exploded view of a security device according to some embodiments of the present application;

FIG. 2 is a cross-sectional view of a security device according to some embodiments of the present application;

FIG. 3 is an exploded view of a front shell assembly of a security device according to some embodiments of the present application;

FIG. 4 is another partial exploded view of a security device according to some embodiments of the present application;

FIG. 5 is a partial cross-sectional view of some embodiments of the present application;

FIG. 6 is a diagram of a first thermally conductive metallic member according to some embodiments of the present application;

FIG. 7 is an enlarged view of a portion of the area A in FIG. 2;

FIG. 8 is an enlarged view of a portion of the area B in FIG. 2;

FIG. 9 is a first lens seal configuration view in some embodiments of the present application;

FIG. 10 is a second lens seal configuration view in some embodiments of the present application.

The reference numbers are as follows:

100-front shell assembly, 110-front shell plastic part and 120-front shell heat dissipation metal part;

200-rear shell assembly, 210-rear shell plastic part, 220-rear shell heat dissipation metal part;

300-lens group, 310-first lens, 320-second lens, 330-third lens;

400-a motherboard assembly, 410-a first motherboard, 411-a first avoidance slot, 420-a second motherboard; 500-a first heat-conductive metal member, 510-a body portion, 512-a flat plate region, 513-a support region, 514-a lap region, 511-a second avoidance groove, 520-an attachment portion; 550 — a first thermally conductive pad;

600-a lamp panel assembly;

700-a second thermally conductive metallic element, 710-a second thermally conductive pad;

800-a first lens sealing element, 810-a sealing tooth, 820-a hollow structure and 830-a reinforcing rib;

900-second lens seal, 910-first section, 920-second section;

1000-screen assembly.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Referring to fig. 1 to 5, an embodiment of the present application discloses a security device, which includes a front housing assembly 100, a rear housing assembly 200, a lens group 300, a main board assembly 400, and a first heat-conducting metal piece 500. Specifically, the front case assembly 100 and the rear case assembly 200 define a receiving cavity. The rear case assembly 200 includes a rear case plastic member 210 and a rear case heat dissipation metal member 220 connected to the rear case plastic member 210. The lens group 300 is mounted on the main plate assembly 400, and the main plate assembly 400 is disposed in the accommodating chamber. First heat conduction metalwork 500 sets up in holding the chamber, and first heat conduction metalwork 500 is connected with mainboard subassembly 400, and first heat conduction metalwork 500 still contacts with backshell heat dissipation metalwork 220, and first heat conduction metalwork 500 is used for transmitting the heat of mainboard subassembly 400 to backshell heat dissipation metalwork 220.

The security equipment of this application embodiment, be provided with backshell heat dissipation metalwork 220 in backshell subassembly 200 behind, set up first heat conduction metalwork 500 in the chamber that holds that is injectd by preceding shell subassembly 100 and backshell subassembly 200 simultaneously, first heat conduction metalwork 500 is connected with mainboard subassembly 400, first heat conduction metalwork 500 still contacts with backshell heat dissipation metalwork 220, therefore, make mainboard subassembly 400 the heat that produces at the during operation, can transmit to backshell heat dissipation metalwork 220 through first heat conduction metalwork 500, rethread backshell heat dissipation metalwork 220 further gives off outside equipment. Therefore, the security protection equipment provided by the embodiment of the application can quickly and effectively dissipate heat of the mainboard assembly 400, so that the problems of inaccurate face recognition, equipment failure and the like caused by equipment overheating are favorably prevented, and the service life and the stability of the equipment are favorably improved.

In addition, when the security device is used in a humid and cold environment, the lens group 300 is easily fogged, and once the fogged phenomenon occurs, the capability of the security device to acquire images is deteriorated. Security protection equipment in this application embodiment for the radiating efficiency is higher through optimizing the heat dissipation route, like this, just is favorable to reducing the inside and outside temperature difference of camera lens, thereby reduces the possibility that the vapor condensation in the air becomes fog to a certain extent.

It can be understood that the contact between the first heat-conducting metal piece 500 and the rear-housing heat-dissipating metal piece 220 includes a case where the first heat-conducting metal piece 500 is in direct contact with the rear-housing heat-dissipating metal piece 220, and also includes a case where the first heat-conducting metal piece 500 is in indirect contact with the rear-housing heat-dissipating metal piece 220 (for example, the first heat-conducting metal piece 500 is in contact with the rear-housing heat-dissipating metal piece 220 through a heat-conducting pad), which is not limited in this application.

In some embodiments, the front housing assembly 100 includes a front housing plastic member 110 and a front housing heat sink metal member 120 connected to the front housing plastic member 110. Security protection equipment still includes lamp plate assembly 600 and second heat conduction metalwork 700. Specifically, lamp plate assembly 600 sets up between mainboard subassembly 400 and preceding shell subassembly 100, and second heat conduction metalwork 700 is connected with lamp plate assembly 600, and second heat conduction metalwork 700 still contacts with preceding shell heat dissipation metalwork 120, and second heat conduction metalwork 700 is used for the heat transfer of lamp plate assembly 600 to preceding shell heat dissipation metalwork 120.

Because lamp plate subassembly 600 also is one of security protection equipment's main device that generates heat, consequently, security protection equipment in this embodiment still is provided with second heat conduction metalwork 700 to second heat conduction metalwork 700 is connected with lamp plate subassembly 600, and second heat conduction metalwork 700 still contacts with preceding shell heat dissipation metalwork 120, from this, makes the heat that lamp plate subassembly 600 produced at the during operation, can transmit to preceding shell heat dissipation metalwork 120 through second heat conduction metalwork 700, and the rethread preceding shell heat dissipation metalwork 120 further gives off outside equipment.

It can be understood that the contact between the second heat-conducting metal member 700 and the front housing heat-dissipating metal member 120 includes a case where the second heat-conducting metal member 700 is in direct contact with the front housing heat-dissipating metal member 120, and also includes a case where the first heat-conducting metal member 500 is in indirect contact with the front housing heat-dissipating metal member 120 (for example, the first heat-conducting metal member 500 is in contact with the front housing heat-dissipating metal member 120 through a heat-conducting pad), which is not limited in this application.

In addition, for two main heating devices of the mainboard assembly 400 and the lamp panel assembly 600, one is radiated through the rear shell assembly 200, and the other is radiated through the front shell assembly 100, so that a radiating path is optimized, and the radiating efficiency is further improved.

It can be understood that, because lamp plate assembly 600 need be installed at the foremost part of equipment to in order to provide the illumination for lens group 300, so, with lamp plate assembly 600's heat transfer to preceding shell heat dissipation metalwork 120, heat conduction distance is closer, more is favorable to going out lamp plate assembly 600's heat transfer. Compare with lamp plate subassembly 600, mainboard subassembly 400 leans on a little relatively, consequently, with mainboard subassembly 400 heat transfer to backshell heat dissipation metalwork 220, like this, preceding shell heat dissipation metalwork 120 and backshell heat dissipation metalwork 220 exert heat dissipation function simultaneously, and then can improve security protection equipment's radiating efficiency. In addition, the front of the lens assembly 300 should be a lens identification area, which is not suitable for concentrated heat dissipation, and this is one of the considerations for transferring the heat of the main board assembly 400 to the rear case heat dissipation metal member 220 through the first heat conduction metal member 500, that is, to prevent the front case assembly 100 from overheating and affecting lens identification.

In some embodiments, the front housing heat dissipation metal member 120 and the rear housing heat dissipation metal member 220 may be made of aluminum, iron, or alloy, which has good heat conductivity and a certain strength, the front housing heat dissipation metal member 120 is a frame of the front housing assembly 100, and the front housing plastic member 110 may have waterproof and wear-resistant functions. Similarly, the rear housing heat dissipation metal member 220 is a frame of the rear housing assembly 200, and the rear housing plastic member 210 can have waterproof and wear-resistant functions.

In some embodiments, the lens group 300 includes a first lens 310 and a second lens 320, and the first lens 310 and the second lens 320 are lenses using different identification methods, that is, the first lens 310 and the second lens 320 are different types of lenses, so that the identification method of the security device can be expanded. For example, the first lens 310 may be one of a visible light lens and an infrared lens, and the second lens 320 may be an iris lens. Further, the first lens 310 and the second lens 320 may be adjacently disposed, so that a lens identification area is conveniently formed on the security device, and when the security device is provided with a display screen, the lens identification area may be disposed on one side (for example, an upper side) of the display screen, so that the first lens 310 and the second lens 320 are intensively disposed in the lens identification area, which is beneficial to realizing the large-screen and narrow-frame design of the security device.

In some embodiments, the main board assembly 400 includes a first main board 410 and a second main board 420, the first lens 310 is mounted on the first main board 410, and the second lens 320 is mounted on the second main board 420, wherein the second main board 420 is located between the first main board 410 and the rear housing assembly 200, and the first heat-conductive metal 500 is disposed between the first main board 410 and the second main board 420. Further, the first heat-conducting metal piece 500 includes a main body portion 510, and the main body portion 510 is in contact with the first main board 410, and the main body portion 510 is also in contact with the second main board 420.

In this embodiment, the first heat-conducting metal part 500 is disposed between the first main board 410 and the second main board 420, and the main body portion 510 of the first heat-conducting metal part 500 contacts both the first main board 410 and the second main board 420, so that both the heat generated by the first main board 410 and the heat generated by the second main board 420 can be transferred to the rear-case heat-dissipating metal part 220 through the first heat-conducting metal part 500. Like this, can improve first heat conduction metalwork 500's utilization ratio to be favorable to reducing the weight and the cost of security protection equipment. In addition, the first main board 410, the first heat-conducting metal piece 500 and the second main board 420 are arranged in a stacked manner, which is also beneficial to reducing the overall size of the security equipment.

In some embodiments, the lens assembly 300 further includes a third lens 330, the third lens 330 is mounted on the first main board 410, a first avoiding groove 411 for avoiding the second lens 320 is disposed on the first main board 410, the second lens 320 passes through the first avoiding groove 411, a second avoiding groove 511 is disposed on the main body portion 510, and the second avoiding groove 511 and the first avoiding groove 411 are disposed opposite to each other.

The third lens 330 is a lens that uses a different recognition method from the first lens 310 and the second lens 320. For example, the first lens 310 may be one of a visible light lens and an infrared lens, the second lens 320 may be an iris lens, and the third lens 330 is the other of the visible light lens and the infrared lens. Therefore, the security equipment has the functions of visible light identification, infrared identification and iris identification at the same time, and the identification capability of the security equipment is improved. Further, the third lens 330 may be disposed side by side with the first lens 310 and the second lens 320.

Referring to fig. 6, in some embodiments, the main body 510 includes a flat plate area 512, a supporting area 513 and a bridging area 514, the supporting area 513 is connected to the flat plate area 512 and protrudes in a direction of the first main plate 410, the bridging area 514 is connected to the flat plate area 512 and protrudes in a direction of the second main plate 420, the supporting area 513 is attached to the first main plate 410, the supporting area 513 is fixed to the front housing assembly by a connecting member (e.g., a screw, a pin, etc.) penetrating the supporting area 513 and the first main plate 410, the second main plate 420 is fixed to the front housing assembly 100 by a connecting member (e.g., a screw, a pin, etc.), and the bridging area 514 abuts against the second main plate 420.

In this embodiment, the main body 510 of the first heat-conducting metal piece 500 is connected to the first main board 410 through the supporting region 513, so that on one hand, the supporting region 513 is in close contact with the main body board 410, and thus the heat of the first main board 410 can be transferred to the first heat-conducting metal piece 500. On the other hand, since the first avoiding groove 411 is disposed on the first main plate 410, the structural strength of the first main plate 410 may be weakened, and in the embodiment, the supporting region 513 is connected to the first main plate 410, so that the structural strength of the first main plate 410 may be increased by the main body portion 510 of the first heat conductive metal 500. In addition, the second main plate 420 is fixed to the front case assembly 100 by a connecting member, and the main body portion 510 of the first heat-conductive metal member 500 is abutted against the second main plate 420 by the overlapping region 514, so that the heat of the second main plate 420 can be transferred to the first metal heat-conductive member 500.

In some embodiments, the security device further comprises a first thermal pad 550, wherein the first thermal pad 550 is disposed between the first main board 410 and the flat area 512 of the main body portion 510.

Since the first lens 310 and the third lens 320 are both disposed on the first main plate 410, the amount of heat generated from the first main plate 410 may be higher. For this reason, in the present embodiment, the first thermal pad 550 is further disposed between the first main board 410 and the flat board area 512, one surface of the first thermal pad 550 is attached to the first main board 410, and the other surface is attached to the flat board area 512, so that the thermal conduction area between the first main board 410 and the first thermal conductive metal member 500 is increased, and the heat dissipation efficiency of the first main board 410 is improved.

Referring to fig. 6, in some embodiments, the first heat conducting metal part 500 further includes two attaching portions 520 respectively disposed at two opposite edges of the main body portion 510, the attaching portions 520 are attached to the rear case heat dissipating metal part 220, and the shape of the attaching portions 520 is adapted to the inner wall surface of the rear case heat dissipating metal part 220.

The shape of the attaching portion 520 is adapted to the inner wall surface of the rear case heat dissipation metal member 220, so that a larger heat conduction area is provided between the first heat conduction metal member 500 and the rear case heat dissipation metal member 220, thereby facilitating improvement of heat conduction efficiency between the first heat conduction metal member 500 and the rear case heat dissipation metal member 220. Specifically, the inner wall surface of the rear housing heat dissipation metal member 220 may be in an arc shape, a wave shape, a flat plate shape, or the like, and these structures have a large surface area, which is helpful for increasing the heat transfer area and the heat dissipation area.

Referring to fig. 5, in some embodiments of the present disclosure, the second heat conducting metal member 700 is a metal plate, a second heat conducting pad 710 is disposed between the lamp panel assembly 600 and the second heat conducting metal member 700, and the second heat conducting pad 710 is wedge-shaped, so that the lamp panel assembly 600 forms an included angle with respect to the front housing assembly 100, and the lamp panel assembly 600 deflects to a certain degree towards the front of the lens assembly 300, so as to make the field of view of the lens assembly 300 within the light supplement range of the lamp panel assembly 600.

Referring to fig. 7, in some embodiments, the security device further includes two first lens sealing elements 800, the two first lens sealing elements 800 are respectively sleeved outside the first lens 310 and the third lens 330, one end of the first lens sealing element 800 abuts against the first main board 410, and the other end abuts against an inner wall of the front housing assembly 100.

Specifically, the first lens sealing element 800 is made of a silicone material and has certain elasticity, the first lens 310 and the third lens 330 are cylindrical structures, the first lens sealing element 800 is sleeved outside the first lens 310 or the third lens 330, the inner diameter of the first lens sealing element 800 is equal to or slightly smaller than the outer diameter of the first lens 310 or the third lens 330, one end of the first lens sealing element 800 abuts against the first main board 410, the other end of the first lens sealing element 800 abuts against the inner wall of the front shell assembly 100, and the first lens sealing element 800 is in interference fit with the outer side of the first lens 310 or the outer side of the third lens 330 to seal the side portions and the tail portions of the first lens 310 and the third lens 330.

According to the security protection equipment in this application embodiment, among the correlation technique, visible light camera lens and infrared camera lens are mostly the cylinder type structure, and first camera lens 310 and third camera lens 330 set up a first camera lens sealing member 800 respectively alone, and the sealing member is more adapted with the camera lens structure, and sealing performance is good. The first lens sealing member 800 in this embodiment has better part commonality, and is beneficial to improving the design and assembly efficiency.

Referring to fig. 8, in some embodiments, the security device further includes a second lens sealing element 900, the second lens sealing element 900 is sleeved outside the second lens 320, one end of the second lens sealing element 900 abuts against the second main board 420, and the other end abuts against an inner wall of the front housing assembly 100.

Specifically, the second lens 320 is a cylindrical structure, the second lens sealing element 900 is sleeved outside the second lens 320, the inner diameter of the second lens sealing element 900 is equal to or slightly smaller than the outer diameter of the second lens 320, one end of the second lens sealing element 900 abuts against the second main board 420, and the other end of the second lens sealing element 900 abuts against the inner wall of the front housing assembly 100. Play sealed effect to 320 lateral parts of second camera lens and afterbody, the cotton material of bubble can be preferred to second camera lens sealing member 900, and the cotton material elasticity of bubble is stronger, because the flexible characteristic of iris camera lens during operation, the characteristic that the elasticity of bubble is strong more helps keeping all the time in the iris camera lens concertina movement in-process, keeps closely the iris camera lens outside, keeps encapsulated situation.

According to security protection equipment in this application embodiment, among the correlation technique, the iris camera lens is mostly the cylinder structure, and in this embodiment, second camera lens sealing member 900 simple structure more adapts with the camera lens structure, and sealing performance is good, and second camera lens sealing member 900 commonality in this embodiment is better, is favorable to promoting design and packaging efficiency.

Referring to fig. 7 and 9, in some embodiments, the first lens sealing element 800 is a cylindrical structure, a plurality of layers of sealing teeth 810 are circumferentially disposed on an inner side of the first lens sealing element 800, the sealing teeth 810 are tightly abutted against an outer side of the first lens 310 or the third lens 330, a hollow structure 820 is further disposed at an inner end of the first lens sealing element 800, and the hollow structures 820 are circumferentially spaced apart from each other.

Specifically, a plurality of layers of seal teeth 810 are circumferentially arranged on the inner side of the first lens seal 800, the inner diameter of each seal tooth 810 is slightly smaller than the outer diameter of the first lens 310 or the third lens 330, each seal tooth 810 has elasticity, and the plurality of layers of seal teeth 810 are sleeved and pressed on the outer side of the first lens 310 or the third lens 330, so that the sealing performance of the lens side wall is better. The first lens sealing element 800 has a hollow 820 at an end thereof, and one end of the first lens sealing element 800 abuts against the first main board 410 and the other end abuts against the inner wall of the front housing assembly 100. Hollow-out structure 820 can be by compression deformation characteristic, to first camera lens sealing member 800 axial extrusion, promotes sealing performance, and is provided with axial strengthening rib 830 between hollow-out structure 820 and then increases hollow-out structure 820's axial holding power, guarantees that first camera lens sealing member 800 and first mainboard 410 and preceding shell subassembly 100 looks butt.

According to the security device in the embodiment of the present application, the sealing teeth 810 with elasticity of the first lens sealing member 800 can absorb the dimensional tolerance between the first lens sealing member 800 and the outer side of the first lens 310, and the sealing effect is better. The first lens sealing member 800 is separately disposed on each of the first lens 310 and the third lens 330, and has a simple structure and good sealing performance, and is applicable to various cylindrical lenses. In the related art, the lens is mostly a cylindrical structure, and the first lens sealing member 800 in this embodiment has better universality, uniform accessories, and high design and assembly efficiency.

In addition, due to the good sealing performance of the first lens sealing member 800, it is beneficial to prevent external humid air from entering the first lens 310 and the third lens 330, so that the inside of the lens can be prevented from being condensed into water mist due to high air humidity.

Referring to fig. 8 and 10, in some embodiments, the second lens sealing element 900 is a cylindrical structure, the second lens sealing element 900 includes a first section 910 and a second section 920, an inner diameter of the first section 910 is smaller than an inner diameter of the second section 920, the second section 920 abuts against the second main plate 420, the first section 910 abuts against an inner side of the front housing assembly 100, and the first section 910 is gap-sealed with an outer side of the second lens 320.

The inner diameter of the first section 910 is smaller than the inner diameter of the second section 920, the inner diameter of the first section 910 is equal to or slightly smaller than the outer diameter of the second lens 320, so that the first section 910 is pressed and attached to the outer side of the second lens 320, the inner diameter of the second section 920 is larger than the inner diameter of the first section 910, and it can be understood that a moving space is formed between the second section 920 and the iris lens. In the related art, the iris lens is moved in an axial direction when operating, so the second section 920 provides a moving space for the iris lens.

According to security protection equipment in this application embodiment, second camera lens 320 sets up a second camera lens sealing member 900 alone, and sealing member simple structure, sealing performance is good, and in the correlation technique, the iris camera lens is mostly the cylinder structure, and second camera lens sealing member 900 commonality in this embodiment is better, and design and packaging efficiency are high.

In some embodiments, the security device further comprises a screen assembly 1000, the screen assembly 1000 being snugly mounted to the outside of the front housing assembly 100.

The screen assembly 1000 is used for providing a screen display function, and meanwhile, the screen assembly 1000 is attached to the outer side of the front shell assembly 100, covers the head ends of the first lens 310, the second lens 320 and the third lens 330, and has a sealing effect on the head parts of the first lens 310, the second lens 320 and the third lens 330.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present application are described in a related manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (12)

1. A security device, comprising:

a front housing assembly;

the front shell assembly and the rear shell assembly define an accommodating cavity, and the rear shell assembly comprises a rear shell plastic part and a rear shell heat dissipation metal part connected with the rear shell plastic part;

a lens group;

the lens group is arranged on the main board assembly, and the main board assembly is arranged in the accommodating cavity;

the first heat conduction metal piece is arranged in the accommodating cavity and connected with the main board assembly, and the first heat conduction metal piece is in contact with the rear shell heat dissipation metal piece.

2. The security device of claim 1, wherein the front housing assembly comprises a front housing plastic part and a front housing heat dissipation metal part connected to the front housing plastic part;

the security protection equipment further comprises a lamp panel assembly and a second heat-conducting metal piece, the lamp panel assembly is arranged between the mainboard assembly and the front shell assembly, the second heat-conducting metal piece is connected with the lamp panel assembly, and the second heat-conducting metal piece is further contacted with the front shell heat-radiating metal piece.

3. The security device according to claim 1, wherein the lens group comprises a first lens and a second lens, and the first lens and the second lens are lenses adopting different identification modes; the mainboard assembly comprises a first mainboard and a second mainboard, a first lens is installed on the first mainboard, a second lens is installed on the second mainboard, the second mainboard is located between the first mainboard and the rear shell assembly, a first heat-conducting metal piece is arranged between the first mainboard and the second mainboard, the first heat-conducting metal piece comprises a main body portion, the main body portion is in contact with the first mainboard, and the main body portion is in contact with the second mainboard.

4. The security device of claim 3, wherein the lens group further comprises a third lens, the third lens is a lens that adopts a different identification manner from the first lens and the second lens, the third lens is mounted on the first main board, a first avoidance groove for avoiding the second lens is provided on the first main board, the second lens passes through the first avoidance groove, a second avoidance groove is provided on the main body, and the second avoidance groove and the first avoidance groove are oppositely disposed.

5. The security device according to claim 4, wherein the main body includes a plate area, a support area and a bridging area, the support area is connected to the plate area and protrudes in a direction of the first main board, the bridging area is connected to the plate area and protrudes in a direction of the second main board, the support area is attached to the first main board, the support area is fixed to the front housing assembly by a connecting member penetrating through the support area and the first main board, the second main board is fixed to the front housing assembly by a connecting member, and the bridging area abuts against the second main board.

6. The security device of claim 5, further comprising a first thermal pad disposed between the first motherboard and the slab region.

7. The security device according to claim 3, wherein the first heat-conducting metal piece further comprises attaching portions arranged at two opposite edges of the main body portion, the attaching portions are attached to the rear-case heat-dissipating metal piece, and the shape of the attaching portions is matched with the inner wall surface of the rear-case heat-dissipating metal piece.

8. The security device according to claim 4, further comprising two first lens sealing members, wherein the two first lens sealing members are respectively sleeved on the outer sides of the first lens and the third lens, one end of each first lens sealing member abuts against the first main board, and the other end of each first lens sealing member abuts against the inner wall of the front shell assembly.

9. The security device according to claim 3, further comprising a second lens sealing member, wherein the second lens sealing member is sleeved outside the second lens, one end of the second lens sealing member abuts against the second main board, and the other end of the second lens sealing member abuts against the inner wall of the front housing assembly.

10. The security device according to claim 8, wherein the first lens sealing element is of a cylindrical structure, a plurality of layers of sealing teeth are circumferentially arranged on the inner side of the first lens sealing element, the sealing teeth are tightly abutted against the first lens or the third lens, and hollow structures are further arranged at the end of the inner side of the first lens sealing element and are circumferentially arranged at intervals.

11. The security device of claim 9, wherein the second lens seal is a cylindrical structure and comprises a first section and a second section, the first section has an inner diameter smaller than that of the second section, the second section abuts against the second main plate, the first section abuts against the inner side of the front housing assembly, and the first section is gap-sealed with the outer side of the second lens.

12. The security device according to claim 2, wherein the second heat-conducting metal member is a metal plate, and a second heat-conducting pad is arranged between the lamp panel assembly and the second heat-conducting metal member, and the second heat-conducting pad is wedge-shaped, so that the lamp panel assembly forms an included angle with respect to the front shell assembly.

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