CN210016797U

CN210016797U - Portable card reading module's heat dissipation cooling structure

Info

Publication number: CN210016797U
Application number: CN201920298148.6U
Authority: CN
Inventors: 戴湘桃; 余勇; 张�浩; 陈宙; 胡威; 刘荇
Original assignee: Hunan Greatwall Information Financial Equipment Co Ltd
Current assignee: Great Wall Information Co Ltd
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-02-04
Anticipated expiration: 2029-03-08

Abstract

The utility model discloses a portable card reading module's heat dissipation cooling structure, heat dissipation cooling structure sets up between the heating element of module and module casing, include with the heating element hug closely the heat conduction silica gel pad of contact and with the heat conduction metal sheet of contact is hugged closely to heat conduction silica gel, the heat conduction metal sheet is fixed to be inlayed and is adorned on module casing, the contact is hugged closely with heat conduction silica gel pad to one of them side of heat conduction metal sheet, and another side exposes in module casing surface and contacts with the outside air. The utility model discloses can realize the heat dissipation heat conduction function in the compact space of portable card reading module product, reduce the too high influence to components and parts of inside heating element temperature rise, obtain the efficiency of heat dissipation cooling simultaneously under the condition that does not increase former product size, also can be applicable to in other mobile service handling equipment that all have the requirement to volume and weight equally.

Description

Portable card reading module's heat dissipation cooling structure

Technical Field

The utility model relates to a portable card reading module's heat dissipation cooling structure.

Background

With the increasing use requirements of the identity cards or other induction type magnetic cards in the market, portable small-sized card reading products are increased, the factors such as size, weight and the like are considered, the internal structure of the whole product is very compact, and the positions of available assembling devices are very compact. Synthesize above-mentioned factor, this kind of portable card reads the inside of product and does not set up unnecessary heat dissipation space or heat abstractor mostly, other parts that the circular telegram generated heat such as inside control chip and motor under the not high condition of frequency of use, can be with the slow release that generates heat, along with the increase of frequency of use, the heat that the part that generates heat produced can not in time effluvium, can lead to the product internal temperature height, cause the influence to the components and parts in the module, influence the use that whole portable card of producing reads the product even.

The existing heat dissipation methods include active heat dissipation and passive heat dissipation, the active heat dissipation requires an air-cooled or water-cooled driving component to be arranged inside the product, and the heat generated by the electronic components is taken away by utilizing flowing air or flowing cooling medium, such as the heat sink disclosed in the chinese patent application with application number 201610480779.0; passive heat dissipation is to arrange a large number of heat dissipation structures, such as heat dissipation fins, on the product structure, so as to increase the contact area of the external air to improve the heat exchange efficiency. No matter the mode of current initiative heat transfer or passive heat transfer, all need set up special space and lay, be unfavorable for portable card and read product compact structure's designing requirement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be: aiming at the defect that the portable card reading product cannot have compact structure and excellent heat dissipation at the same time, the heat dissipation and cooling structure of the portable card reading module is provided, and the heat dissipation performance of the portable card reading product is improved on the basis that the original appearance size of the portable card reading product is not influenced.

The utility model discloses a following technical scheme realizes:

the utility model provides a portable card reading module's heat dissipation cooling structure, heat dissipation cooling structure sets up between the heating element of module and module casing, include with the heating element hug closely the heat conduction silica gel pad of contact and with the heat conduction metal sheet of contact is hugged closely to heat conduction silica gel, the heat conduction metal sheet is fixed to be inlayed and is adorned on module casing, the contact is hugged closely with heat conduction silica gel pad to one of them side of heat conduction metal sheet, and another side exposes in module casing surface and contacts with the outside air.

Furthermore, a plurality of heat dissipation holes are formed in the heat conduction metal plate.

Further, the heat-conducting metal plate is an aluminum alloy plate or a copper plate.

Further, the module housing includes base and apron, the equal fixed mounting of heating element is on the base, the apron is through dismantling the connecting piece spiral-lock on the base, encapsulates heating element and heat conduction silica gel pad in the module housing, the fixed dress that inlays of heat conduction metal sheet is on the apron.

Furthermore, the heating element is an electric heating component, and comprises at least one of a main board of the portable identification card reading module, a power supply connecting device or a motor.

The utility model discloses a heat conduction silica gel pad and heat conduction metal plate form the combination heat conduction subassembly of heat conduction together, utilize the high-efficient heat conduction efficiency of heat conduction silica gel and metal, give off the heat that the inside heating element of module produced fast and conduct the module outside. Because the soft characteristic of heat conduction silica gel, the heat conduction silica gel pad can compress tightly the space that warp and be full of between heating element and module casing, and the heat conduction metal sheet of rigidity inlays the dress on the module casing, constitutes a part of module casing, need not additionally design the space that holds the heat conduction metal sheet in the thickness direction of module, greatly utilized the current compact structure of portable card reading module product, need not additionally increase heat radiation structure's space.

To sum up, the utility model discloses can realize the heat dissipation heat conduction function in portable card reading module product compact space, reduce the influence of inside heating element temperature rise too high to components and parts, obtain the efficiency of heat dissipation cooling simultaneously under the condition that does not increase former product size, also can be applicable to in other mobile service processing equipment that all have the requirement to volume and weight equally.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is an exploded view of a portable identification card reading module in an embodiment.

Fig. 2 is a schematic internal cross-sectional view of a portable identification card reading device in an embodiment.

Reference numbers in the figures: 1-base, 2-main board, 3-heat conducting silica gel pad, 4-cover board, 5-heat conducting metal plate, 51-heat dissipation hole, 6-motor, 7-power socket, 8-control switch.

Detailed Description

Examples

Referring to fig. 1, the portable card reading module in the figure is for using the utility model discloses a specific implementation scheme of heat dissipation cooling structure, this module specifically is used for card information read-write identification that has the readable chip such as ID card, bank card. Specifically, the card reading and writing module comprises a module shell, a mainboard 2, a motor 6, a power supply seat 7, a control switch 8 and other conduction components, wherein the mainboard 2, the motor 6, the power supply seat 7, the control switch 8 and the like are arranged in the module shell, a chip reading and writing module of a card, a communication module and a control circuit of the motor and a power supply are integrated on the mainboard 2, the motor 6 drives the card conveying mechanism to convey the card to the chip reading and writing module of the mainboard 2 to read information, the power supply seat 7 is used for being plugged with a power supply line and a communication. The module shell comprises a base 1 and a cover plate 4 which are buckled together, the above devices are fixedly installed on the base 1, the cover plate 4 is buckled on the base 1, and the whole module product is packaged by fixing and locking detachable connecting pieces such as screws. The above structure and working principle can refer to the existing portable identification card reading module product, and this embodiment is not described herein again.

Mainboard 2, the motor 6 of above portable card reading module are electric heating element at the card reading module work, can give off a large amount of heats when frequency of use is too high, and this embodiment sets up heat dissipation cooling structure between mainboard 2 and motor 6 place region top and module casing on current portable card reading module structure basis. Specifically, this heat dissipation cooling structure includes heat conduction silica gel pad 3 and heat conduction metal sheet 5, and wherein heat conduction silica gel pad 3 hugs closely and lays in the region that generates heat at mainboard 2 and motor 6 place to with above the region that generates heat hug closely the contact, heat conduction metal sheet 5 is fixed to be inlayed and is adorned on apron 4, after apron 4 and base 1 lock, heat conduction metal sheet 5 hugs closely the contact with heat conduction silica gel pad 3.

Heat conduction silica gel pad 3 is the flexible construction, can be compressed tightly and fill in the space between heating element such as apron 4 and mainboard 2, and the flexible construction of silica gel can not cause the damage to the integrated module on mainboard 2 to the insulating properties of silica gel can not influence the circuit on mainboard 2. The heat conduction metal plate 5 is a rigid structure, a hole site capable of accommodating the heat conduction metal plate 5 is arranged on the cover plate 4, then the heat conduction metal plate 5 is embedded in the hole site on the cover plate 4, and then the heat conduction metal plate is fixedly connected with the cover plate 4 through connecting structures such as threaded connecting pieces, riveting and bonding, so that the heat conduction metal plate 5 and the cover plate 4 are integrated into a whole, after the cover plate 4 is buckled on the base 1, the inner side surface of the heat conduction metal plate 5 is in compression contact with the heat conduction silica gel pad 3, and the outer side surface is exposed on the outer surface of the cover plate and is flush with the outer surface of the cover plate. The heat generated from the main board 2 and the motor 6 is conducted to the heat conductive metal plate 5 through the heat conductive silicone pad 3, and then is heat-exchanged by contacting with the external air through the heat conductive metal plate 5.

In order to improve the heat dissipation efficiency of the heat conduction and dissipation structure, in the present embodiment, a plurality of through heat dissipation holes 51 are disposed on the heat dissipation metal plate 5, and the heat dissipation holes 51 are uniformly distributed on the heat dissipation metal plate 5, so as to improve the contact area between the air and the heat dissipation metal plate.

In practical applications, aluminum alloy plates or copper plates are preferably used as the heat-conducting metal plates according to the heat-conducting efficiency of different metals.

The assembly process of the embodiment is as follows: first, take base 1 of plastic material, with mainboard 2, motor 6, power seat 7 and control switch 8 assembly on base 1, fix mainboard 2 and base 1 through the screw, paste heat conduction silica gel pad 3 and cover in the chip device region that generates heat of mainboard 2, will inlay apron 4 that has heat conduction metal sheet 5 and add and cover on base 1, and it is fixed through screw locking, make the heat conduction metal sheet 5 that 4 middle areas of apron inlayed paste tight heat conduction silica gel pad 3, hug closely heat conduction silica gel pad 3 and the chip device region that generates heat of mainboard 2, the assembly of portable card reading module and heat dissipation cooling structure in the embodiment of the cost has been accomplished promptly, the overall dimension of whole portable card reading module does not change.

In the portable card reading module use, connect power supply seat 7 and open control switch 8 and make card conveying mechanism such as mainboard 2 driving motor 6 and rubber tyer move, along with the increase of operating duration and frequency, chip device and the motor 6 temperature on the mainboard 2 constantly rise, the heat energy of production can be conducted for on the heat conduction metal sheet 5 in the apron 4 through the heat conduction silica gel pad 3 of hugging closely, the metal has fine heat conduction and heat dispersion, can be better faster spread heat energy and conduct away through the louvre on the heat conduction metal sheet 5, realize the inside heat dissipation cooling function of portable card reading module.

The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a portable card reading module's heat dissipation cooling structure which characterized in that: the heat dissipation cooling structure is arranged between the heating element of the module and the module shell, and comprises a heat conduction silica gel pad which is tightly attached to the heating element and a heat conduction metal plate which is tightly attached to the heat conduction silica gel pad, wherein the heat conduction metal plate is fixedly embedded on the module shell, one side surface of the heat conduction metal plate is tightly attached to the heat conduction silica gel pad, and the other side surface of the heat conduction metal plate is exposed to the outer surface of the module shell and is contacted with the external air.

2. The heat dissipation and cooling structure of the portable identification card reading module as claimed in claim 1, wherein: the heat conducting metal plate is provided with a plurality of heat dissipation holes.

3. The heat dissipation and cooling structure of the portable identification card reading module as claimed in claim 2, wherein: the heat-conducting metal plate is an aluminum alloy plate or a copper plate.

4. The heat dissipation and cooling structure of the portable identification card reading module as claimed in claim 1, wherein: the module shell comprises a base and a cover plate, the heating elements are fixedly mounted on the base, the cover plate is buckled on the base through a detachable connecting piece, the heating elements and the heat-conducting silica gel pad are packaged in the module shell, and the heat-conducting metal plate is fixedly embedded on the cover plate.

5. The heat dissipation and cooling structure of the portable identification card reading module as claimed in claim 4, wherein: the heating element is an electric heating component, and comprises at least one of a mainboard of the portable identification card reading module, a power supply connecting device or a motor.