CN217333394U

CN217333394U - Built-in protective memory and travelling data recorder

Info

Publication number: CN217333394U
Application number: CN202221109701.5U
Authority: CN
Inventors: 蔡国栋; 张军; 卢作帆
Original assignee: Shenzhen Yuwei Information & Technology Development Co ltd
Current assignee: Shenzhen Yuwei Information & Technology Development Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-08-30
Anticipated expiration: 2032-05-10

Abstract

The application provides a built-in protection memory and a driving recorder. The built-in protection memory includes: the memory assembly comprises a memory module and a transmission line led out from the memory module; the protection box subassembly, including first protection box and the second protection box that sets up relative to each other, wherein: a first cavity is formed between the first protection box and the second protection box and used for containing the memory assembly, a wire outlet is formed between the first protection box and the second protection box and used for leading out the transmission line, the first protection box and the second protection box are connected through an adhesive so as to seal the first cavity, the first protection box and the second protection box are respectively provided with a sealed second cavity, and the second cavity contains a heat-absorbing material; the protection box assembly is contained in the protection shell; and the heat insulation assembly is arranged between the protection box assembly and the protection shell. The protection memory can strengthen the protection of the memory module.

Description

Built-in protective memory and travelling data recorder

Technical Field

The application relates to the technical field of storage protection and driving monitoring, in particular to a built-in protection memory and a driving recorder.

Background

The driving recorder has the functions of recording, monitoring, recording driving state information and the like, and becomes necessary equipment of commercial vehicles. In the safe driving state, the data can be completely stored in the inherent memory of the driving recorder or on the external equipment. However, the vehicle may encounter an accident such as a rollover accident, a fire accident, a drowning accident, etc. during the driving process. When these accidents happen, the driving recorder in the vehicle may be damaged, so that the key information such as driving data before the disaster, monitoring video in the vehicle and the like is lost, and difficulties are brought to accident liability judgment, accident cause analysis and the like.

Therefore, it is necessary to develop a protection memory capable of protecting critical data.

SUMMERY OF THE UTILITY MODEL

The application provides a built-in protection memory and a driving recorder. The built-in protection memory can strengthen the protection of the memory module through multiple protections.

According to an aspect of the present application, there is provided a built-in guard memory including:

the memory assembly comprises a memory module and a transmission line led out from the memory module;

the protection box subassembly, including first protection box and the second protection box that sets up relative to each other, wherein:

a first cavity is formed between the first protection box and the second protection box and used for accommodating the storage module,

a wire outlet is formed between the first protection box and the second protection box and used for leading out the transmission line,

the first protection box and the second protection box are connected through adhesive, so that the first cavity is sealed,

the first protection box and the second protection box are respectively provided with a sealed second cavity, and the second cavity contains a heat absorption material;

the protective shell is accommodated in the protective shell;

and the heat insulation assembly is arranged between the protection box assembly and the protection shell.

According to some embodiments, the first protective pocket and the second protective pocket each comprise a first housing and a second housing, wherein:

the upper surface of the first shell is provided with an accommodating concave cavity, and after the first protection box and the second protection box are closed to each other, the accommodating concave cavities opposite to each other form the first cavity;

the first housing is in sealed connection with the second housing, such that the second cavity is formed between the first housing and the second housing.

According to some embodiments, the upper surface of the first shell is provided with a glue storage groove and a glue pressing convex rib, wherein

The glue storage groove and the glue pressing convex rib are adjacent to each other and arranged around the containing concave cavity, the glue storage groove is used for filling the adhesive,

after the first protection box and the second protection box are closed, the glue pressing convex rib on the first protection box is jointed with the glue storage groove on the second protection box and extrudes the adhesive in the glue storage groove, and the glue pressing convex rib on the second protection box is jointed with the glue storage groove on the first protection box and extrudes the adhesive in the glue storage groove, so that the first cavity is sealed.

According to some embodiments, the upper surface of the first shell is provided with an outlet groove communicated with the accommodating cavity, and after the first protection box and the second protection box are involuted with each other, the outlet groove opposite to each other forms the outlet.

According to some embodiments, the first housing is welded to the second housing.

According to some embodiments, the lower surface of the second case has a recess and a gas discharge hole, the gas discharge hole being located in the recess, the recess having an area 5 times or more larger than an area of the gas discharge hole.

According to some embodiments, the heat insulation assembly comprises a lower shell and an upper shell, the lower shell and the upper shell are of an integrally formed structure, and the transmission line is led out from between the lower shell and the upper shell.

According to some embodiments, the protective housing comprises a lower protective housing and an upper cover, wherein:

the side wall of the lower protection shell is provided with a first clamping structure, the side wall of the upper cover is provided with a second clamping structure, and the lower protection shell is connected with the upper cover in a clamping manner through the first clamping structure and the second clamping structure;

an H-shaped reinforcing structure is processed on the upper surface of the upper cover;

the side wall of the lower protection shell is provided with a long convex hull structure.

According to some embodiments, the first protective pocket and the second protective pocket have the same structure.

According to one aspect of the application, a tachograph is provided, comprising the aforementioned built-in protection memory.

According to the protection memory of this application embodiment through thermal-insulated and the protection of heat absorption two-stage to and through the sealed cavity holding storage module between the protection box, can satisfy under the prerequisite of protection requirement, reduce the volume of protection memory greatly, can install inside the tachograph, the protecting effect can reach resistance to compression, fire prevention, waterproof requirement in the national standard file.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 shows an exploded view of an in-built protected memory according to an example embodiment of the present application.

FIG. 2 illustrates an overall assembly view of an internal guarded memory according to an example embodiment of the present application.

Fig. 3 shows a cross-sectional view of a first protective cartridge according to an example embodiment.

Fig. 4 shows a perspective view of the first protective case of the exemplary embodiment.

Fig. 5 shows a perspective view of another angle of the first protective case of the exemplary embodiment.

Fig. 6 shows an assembly view of the first protective case and the second protective case of the example embodiment.

Description of reference numerals:

110a memory component; a 110A memory module; a 110B transmission line; 120a protection box assembly; 120A first protective case; 120B a second protection box; 122 a first housing; 124 a second housing; 126 a first cavity; 128 a second cavity; 127 outlet ports; 1201 accommodating the cavity; 1203 glue storage tank; 1205 glue pressing convex ribs; 1207 outlet groove; 1209 limiting pits; 1211 limit bumps; 1213 a recess; 1215 air vent hole; 130 an insulating assembly; 140a protective housing; 140A lower protective shell; 140B, an upper cover; 1402 a first engaging structure; 1404 a second engaging structure; 1406H-shaped reinforcing structures; 1408 long convex hull structure; 150 line cards.

Detailed Description

The technical solution of the embodiment of the present application will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few examples of the present application and are not intended to be exhaustive or exhaustive. 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 described features, structures, or characteristics of the example embodiments may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject technology can be practiced without one or more of the specific details, or with other means, components, materials, devices, etc. In such cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a system, product or apparatus that comprises a list of elements is not limited to only those elements or steps recited, but may alternatively include other elements not expressly listed or inherent to such system, product or apparatus.

The mode of protecting the data of the driving recorder is mainly realized by a PCB storage module for protecting the data, for example, the storage module is placed in a protective memory, and the protective memory has the compression-resistant protection performance, the high-temperature fire protection performance, the ember protection performance and the water immersion protection performance.

The compression-resistant protection performance means that after the protection memory bears 10kN extrusion pressure and lasts for 5 minutes, the protection memory has no obvious structural deformation, the driving record data can be read through the standby data reading interface, and the data has no loss or content change.

The high-temperature fireproof protection performance means that the protective memory has no obvious structural deformation after being subjected to a 1100 ℃ high-temperature flame environment, lasting for 15 minutes and subjected to a room-temperature natural cooling test, the driving record data can be read through the standby data reading interface, and the data cannot be lost or the content cannot be changed.

The protective performance of the ember means that the protective memory has no obvious structural deformation after bearing an ember environment at 260 ℃, lasting for 120 minutes and undergoing a room temperature natural cooling test, and the running record data can be read through the standby data reading interface, and the data has no loss and content change.

The immersion protection performance refers to that after the protective memory is subjected to a test of immersing in 100m water depth (or equivalent pressure) for 48 hours, the protective memory has no obvious structural deformation, the driving record data can be read through the standby data reading interface, and the data has no loss or content change.

In some storage schemes in the prior art, a passive thermal insulation scheme is mainly adopted, namely, a material with low thermal conductivity, fire resistance and flame retardance is used as a thermal insulation layer to block heat transfer at high temperature. However, the protective memory in such a manner is often too thick in heat insulation layer, so that the protective memory is too large in size, can be used only in an external manner, cannot be built in an automobile driving recorder, and is inconvenient to use.

Therefore, the application provides a protective memory, which adopts two-stage protection of passive heat insulation and active heat absorption, and has small volume and convenient installation.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1 shows an exploded view of an internal protection memory according to an exemplary embodiment of the present application, and fig. 2 shows an overall assembly view of the internal protection memory according to an exemplary embodiment of the present application.

Referring to fig. 1 and 2, the built-in shield storage according to the exemplary embodiment includes a storage assembly 110, a protective cartridge assembly 120, a thermal insulation assembly 130, and a protective case 140.

As shown in fig. 1, the memory assembly 110 may include a memory module 110A and a transmission line 110B leading from the memory module 110A.

The protective cartridge assembly 120 can include a first protective cartridge 120A and a second protective cartridge 120B disposed opposite each other. The first protective case 120A and the second protective case 120B may be of a stainless steel structure.

According to an exemplary embodiment, a first cavity 126 (see fig. 3) is formed between the first protective pocket 120A and the second protective pocket 120B for receiving the memory module 110A, as described in detail below with reference to the figures.

An outlet 127 (see fig. 6) is formed between the first protection box 120A and the second protection box 120B for leading out the transmission line 110B.

The first protection box 120A and the second protection box 120B are connected by an adhesive, thereby sealing the first cavity 126 and performing a fixing and waterproof function.

The first protective case 120A and the second protective case 120B each have a sealed second cavity 128 (see fig. 3), and the second cavity 128 contains a heat absorbing material.

The protective case 140 serves to receive the protective cartridge assembly 120. According to an example embodiment, the protective case 140 may include a lower protective case 140A and an upper cover 140B.

Referring to fig. 1, according to an example embodiment, a sidewall of the lower protective housing 140A may have a first engaging structure 1402, a sidewall of the upper cover 140B may have a second engaging structure 1404, and the lower protective housing 140A and the upper cover 140B may be engaged by the first engaging structure 1402 and the second engaging structure 1404. According to some embodiments, the first engaging structure 1402 can be a latch and the second engaging structure 1404 can be a latch hole.

According to an example embodiment, after the lower protective case 140A and the upper cover 140B are assembled, the inner side of the upper cover 140B may contact the top surface of the lower protective case 140A. Clamping holes are formed in four side faces of the upper cover 140B, clamping blocks are machined in corresponding positions of the lower protective shell 140A, and after assembly is completed, the metal clamping blocks on the four sides are tightly combined with the clamping holes to form a whole.

In addition, the upper cover 140B may further include a mounting hole for securing the memory to the fixing structure. The mounting hole specification may be a threaded hole of M3.

The protective housing 140 may be a stainless steel structure, and the lower protective housing 140A and the upper cover 140B may be fastened to have a desired strength.

Referring to fig. 1, according to some embodiments, the upper surface of the upper cover 140B may be machined with an H-shaped reinforcing structure 1406. According to other embodiments, the sidewall of the lower protective shell 140A may be machined with an elongated convex hull structure 1408. Thus, the compressive strength of the whole body in the three-dimensional direction can be further improved. In addition, according to some embodiments, the lower protective case 140A may further increase the overall strength through a hemming process.

The thermal insulation assembly 130 is disposed between the protective box assembly 120 and the protective case 140. According to an example embodiment, the heat insulation assembly 130 may include a lower case and an upper case, both of which are integrally formed structures, and the transmission line 110B is led out between the lower case and the upper case, so that heat insulation performance is better.

According to embodiments, insulation assembly 130 may be implemented as a first stage of insulation using an integrated nanoporous insulation material (e.g., nanoscale titanium Ti silicate ₂ Si ₂ O ₅ ). TheThe heat conductivity coefficient of the heat insulating material can be as low as 0.03W/(m.k), and the heat insulating performance is 3-10 times that of the traditional material. In addition, the heat insulating material has good high-temperature characteristics, can be used at a high temperature of 1000 ℃ for a long time, and has the shrinkage rate of less than 2 percent.

The second cavity 128 contains a heat sink material that is active to absorb heat and acts as a second level of insulation. According to some embodiments, the heat absorbing material may employ a low melting point high enthalpy phase change heat absorbing gel. The gel can absorb heat to vaporize after being heated, and the heat is taken away in the vaporizing process, thereby achieving the purpose of protection.

According to some embodiments, the built-in protection memory may also include line card 150. The upper cover 140B may have a line card retaining groove and a retaining hole for fixing the line card 150. The line card 150 may have an opening for exiting the transmission line 110B.

According to an exemplary embodiment, the wire clip 150 may be a plastic member that can be inserted into a wire clip retaining groove and a retaining hole of the stainless steel upper cover 140B in an expansion manner. The line card 150 prevents the metal from scratching the transmission line and also prevents the powder dropped from the nano-insulation material from falling outside.

Fig. 3 illustrates a cross-sectional view of the first protective case 120A according to an example embodiment, fig. 4 illustrates a perspective view of the first protective case 120A of the example embodiment, and fig. 5 illustrates another angular perspective view of the first protective case 120A of the example embodiment. The second protective case 120B may have the same view structure as the first protective case 120A.

Fig. 6 shows an assembly view of the first protective case 120A and the second protective case 120B of the example embodiment.

Referring to fig. 3-5, according to an exemplary embodiment, the first protective cartridge 120A and the second protective cartridge 120B each include a first housing 122 and a second housing 124.

The upper surface of the first casing 122 has an accommodation cavity 1201, and after the first protection case 120A and the second protection case 120B are fitted to each other, the accommodation cavities 1201 facing each other form a first cavity 126.

The first housing 122 is sealingly connected to the second housing 124 such that a second cavity 128 is formed between the first housing 122 and the second housing 124.

Referring to fig. 3 and 4, the upper surface of the first housing 122 has a glue storage groove 1203 and a glue pressing rib 1205.

The glue reservoir 1203 and the glue bead 1205 are adjacent to each other and disposed around the receiving cavity 1201. The glue reservoir 1203 is used for filling with adhesive.

After the first protection box 120A and the second protection box 120B are closed, the bead 1205 on the first protection box 120A is engaged with the glue storage groove 1203 on the second protection box 120B and presses the adhesive therein, and the bead 1205 on the second protection box 120B is engaged with the glue storage groove 1203 on the first protection box 120A and presses the adhesive therein, so that the sealing effect on the first cavity 126 is enhanced by pressing and filling.

With continued reference to fig. 4, according to some embodiments, the upper surface of the first housing 122 has a retaining dimple 1209 and a retaining bump 1211. After the first protection box 120A and the second protection box 120B are folded, the limit bumps 1211 on the first protection box 120A are engaged with the limit pits 1209 on the second protection box 120B, and the limit bumps 1211 on the second protection box 120B are engaged with the limit pits 1209 on the first protection box 120A, so that the first protection box 120A and the second protection box 120B are positioned opposite to each other.

Thus, according to the embodiment of the present application, the first protection box and the second protection box may have the same structure. Thus, only one protection box is needed to be manufactured, the first protection box and the second protection box can be jointed, and therefore manufacturing cost can be reduced.

With continued reference to fig. 4, the upper surface of the first housing 122 has outlet slots 1207 that communicate with the receiving cavity 1201. After the first protection box 120A and the second protection box 120B are mated with each other, the outlet slots 1207 facing each other form the outlet 127 (see fig. 6).

According to an exemplary embodiment, the first housing 122 is welded to the second housing 124.

Referring to fig. 5 and 6, the lower surface of the second case 124 has a recess 1213 and a vent 1215, the vent 1215 being located in the recess 1213. The area of the recess 1213 is larger than the area of the exhaust hole. According to some embodiments, the area of the recess 1213 is more than 5 times the area of the vent 1215. Thus, the vent 1215 can be ensured to be smoothly blown open when the heat absorbing material is preheated and gasified. Although the recess 1213 is shown as a cross, other shapes may be used, and the application is not limited thereto.

According to some embodiments, when assembling, the first casing 122 and the second casing 124 are welded together to form a protection box (first protection box/second protection box), then a certain amount of phase-change heat-absorbing gel is injected into the second cavity 128, and after the injection, the phase-change heat-absorbing gel is adhered to the vent 1215 by using a high temperature resistant patch, so as to seal the vent 1215 and prevent the gel from volatilizing at normal temperature.

After the single protection box is assembled, the storage module 110A is fixed in the accommodating cavity 1201 of one protection box through an adhesive or a cushion pad, and the high-temperature-resistant sealant is filled in the sealant storage tank 1203, and the high-temperature-resistant sealant is also filled in the sealant storage tank 1203 of the other protection box. The two protection boxes rotate horizontally by 180 degrees, the limit salient point 1211 of one protection box corresponds to the limit pit 1213 of the other protection box, and the glue storage groove 1203 of one protection box corresponds to the glue pressing convex rib 1205 of the other protection box. The two protective boxes are attached together to seal the memory module 110A inside, and the transmission line 110B is led out through the sealed outlet 127.

According to some embodiments, the present application further provides a tachograph that may include an internal guard memory according to embodiments of the present application.

From the above description, it is easily understood that the monitoring and dust removal integrated device according to the embodiment of the present application may have one or more of the following advantages.

According to the built-in protection memory of the embodiment, through two-stage protection of heat insulation and heat absorption, the size of the protection memory can be greatly reduced on the premise of meeting protection requirements, the built-in protection memory can be installed inside a driving recorder, and the protection effect can meet the requirements of compression resistance, fire resistance and water resistance in national standard documents.

According to the protection memory provided by the embodiment of the application, the storage module is accommodated in the sealed cavity between the protection boxes, so that the volume of the protection memory can be further reduced on the premise of meeting the protection requirement.

According to some embodiments, the heat insulation assembly 130 takes the form of a lower housing and an upper housing, and is easy to install and has better heat insulation performance.

According to some embodiments, the first protection case and the second protection case may have the same structure, enabling a reduction in manufacturing costs.

According to some embodiments, the sealing structure on the protection box adopts a mode of combining the glue storage groove and the glue pressing convex rib, so that the contact area of the sealant can be increased, the connectivity and the waterproof effect between the two protection boxes are improved, and the cost is reduced by manufacturing only one protection box.

Finally, it should be noted that the above description is only an example embodiment of the present application and is not intended to limit the scope of the present application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that other modifications can be made by modifying the technical solutions described in the foregoing embodiments or by substituting equivalents of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A built-in secure memory, comprising:

a first cavity is formed between the first protection box and the second protection box and used for accommodating the storage module;

a wire outlet is formed between the first protection box and the second protection box and used for leading out the transmission line;

the first protection box and the second protection box are connected through an adhesive, so that the first cavity is sealed;

the protection box assembly is contained in the protection shell;

2. The built-in protective storage according to claim 1, wherein the first protective case and the second protective case each comprise a first housing and a second housing, wherein:

3. The built-in secure memory of claim 2, wherein: the upper surface of the first shell is provided with a glue storage groove and a glue pressing convex rib, wherein

4. The built-in protective storage device as claimed in claim 3, wherein the upper surface of the first casing is provided with an outlet groove communicated with the receiving cavity, and the outlet groove opposite to each other forms the outlet after the first protective box and the second protective box are involuted with each other.

5. The in-built protective case of claim 2, wherein the first housing is welded to the second housing.

6. The built-in shield storage according to claim 2, wherein the lower surface of the second housing has a recess and a vent hole, the vent hole being located in the recess, the recess having an area 5 times or more larger than an area of the vent hole.

7. The built-in protective storage according to claim 1, wherein the heat insulation assembly comprises a lower shell and an upper shell, the lower shell and the upper shell are of an integrally-formed structure, and the transmission line is led out from between the lower shell and the upper shell.

8. The built-in protective storage according to claim 1, wherein the protective housing comprises a lower protective housing and an upper cover, wherein:

9. The built-in secure memory according to any of claims 1-8, wherein: the first protection box and the second protection box have the same structure.

10. A tachograph comprising a built-in protective memory according to any one of claims 1 to 9.