CN210536320U

CN210536320U - Charger shell structure

Info

Publication number: CN210536320U
Application number: CN201921738411.5U
Authority: CN
Inventors: 朱辉
Original assignee: SHENZHEN SANSHRILL TECHNOLOGY CO LTD
Current assignee: SHENZHEN SANSHRILL TECHNOLOGY CO LTD
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-05-15
Anticipated expiration: 2029-10-16

Abstract

The utility model relates to a charger shell structure, belong to the technical field of charger, this shell structure sets up the circuit board in airtight cavity, set up the fan outside the airtight cavity at circuit board place, the heat conduction that the circuit board during operation gived off to the outer wall of the airtight cavity at circuit board place, the fan is the outer wall cooling of the airtight cavity at circuit board place with the during operation, and the fan sets up to waterproof fan, thereby keep circuit board work in relatively inclosed environment on the basis that satisfies circuit board heat dissipation needs, the possibility that receives the external environment influence in the circuit board working process has been reduced, the circuit board sets up and also makes the charger can work in comparatively moist environment or rainwater weather for waterproof fan in airtight cavity and fan.

Description

Charger shell structure

Technical Field

The utility model relates to a charger especially relates to a charger shell structure.

Background

The working environment of the circuit board needs to be dry and low temperature generally, the circuit board can generate heat due to resistance-capacitance loss of components on the circuit board in the working process, and for the circuit board of the charger, the charger generates heat particularly obviously in the working process because the circuit board of the charger relates to a voltage conversion circuit which converts large fluctuating voltage into a stable small cigarette lighter capable of charging equipment, and therefore the charger generally needs to be provided with a heat removal device to meet the heat dissipation requirement of the charger.

The heat abstractor of current charger generally sets up to the heat extraction fan, and the circuit board of charger sets up in the casing of charger, and the heat extraction fan sets up on the charger casing, and the position that corresponds the heat extraction fan on the casing is provided with the vent that supplies the interior outer airflow exchange of casing, can give off the heat to the air in the casing in the circuit board during operation, and the heat extraction fan during operation can make the inside and outside air of casing exchange to take away the heat that the circuit board gave out through the air, satisfied the heat dissipation needs of circuit board.

Although the heat dissipation device of the charger provided in the prior art meets the heat dissipation requirement of the circuit board, the heat dissipation fan must be arranged to exchange air between the space for storing the circuit board and the external environment, so that the circuit board is easily affected by the external environment, and if the external environment is a humid environment or meets weather such as rain, the circuit board may be damaged, so that it is necessary to design a charger housing structure which not only meets the heat dissipation requirement of the charger, but also avoids the circuit board from being affected by the external environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a charger shell structure, its advantage lies in that it has both satisfied the heat dissipation needs of charger and has avoided the circuit board to receive external environment influence again.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a charger shell structure, includes the supporter that is used for bearing circuit board and fan, lock in the supporter and surround with the supporter and form the last casing of the airtight space of depositing the circuit board, lock in the supporter and with the supporter between form the fan and blow off the lower apron of the parallel opening through the circuit board lower surface of air current, the supporter is including separating the opening and depositing the backup pad of the airtight space of circuit board, the fan sets up to waterproof fan.

Through adopting above-mentioned technical scheme, because the circuit board sets up in the airtight space that forms between last casing and the backup pad, the event has avoided the circuit board to receive external environment's influence, and separate through the backup pad between circuit board and the opening, the heat that the circuit board distributes can conduct to the backup pad, and the air current that the fan blew off can take away the heat on backup pad surface through the opening, thereby the heat that makes the circuit board distribute out can disperse through the backup pad, and simultaneously, because circuit board itself sets up in airtight space, and the fan sets up to waterproof fan again, the event makes the charger can not influence the circuit board in weather work such as humid environment or rainy day.

The utility model discloses further set up to: a plurality of guide plates for shunting the airflow blown out by the fan are arranged between the supporting plate and the lower cover plate, and an air channel for the airflow to pass through is formed between the guide plates.

Through adopting above-mentioned technical scheme, the setting of guide plate has injectd the flow direction that the fan blew off the air current, is that the air current that the fan blew off is stable to flow along the wind channel, is favorable to taking away the heat on backup pad surface more quickly.

The utility model discloses further set up to: the interval between the guide plates is smaller corresponding to the area with more serious heating condition of the circuit board, and the interval between the guide plates is larger corresponding to the area with more slight heating condition of the circuit board.

Through adopting above-mentioned technical scheme, because the different regional component distribution of circuit board is different, the condition of generating heat of the different regions of circuit board is also different, the heat dissipation needs of the different regions of circuit board are also different promptly, and the interval between the guide plate is less, corresponding air current velocity of flow in the wind channel is just faster, it is just higher to take away thermal efficiency, the radiating effect is just better, the event is the interval difference between the guide plate according to the heat dissipation needs of the different regions of circuit board, can satisfy the heat dissipation needs of the different regions of circuit board on the basis that keeps the charger whole comparatively light.

The utility model discloses further set up to: the lengths of the guide plates are different and the two ends of the guide plates are arranged in a staggered mode.

Through adopting above-mentioned technical scheme, when the air current flows and when the wind channel between the guide plate entering guide plate through the guide plate, the guide plate can give the power of reposition of redundant personnel of air current, when the air current has a power of assembling when flowing in by the wind channel between the guide plate, the power of reposition of redundant personnel all can change the flow direction of air current with the power of assembling, so make the crisscross setting in guide plate both ends can make the air current in the position reposition of redundant personnel of difference and assemble to make the air current pass through whole backup pad surface more easily.

The utility model discloses further set up to: the top of the upper shell is vertically hinged with a U-shaped handle for holding by a person.

Through adopting above-mentioned technical scheme, the user can mention whole charger through the handle, and the setting of handle has made things convenient for the user to take the charger.

The utility model discloses further set up to: go up the casing top and be provided with the holding tank that holds the handle, the handle rotates to be located when the level in the holding tank.

Through adopting above-mentioned technical scheme, the handle can be held in the setting of holding tank when the handle does not use, and the outside occupation space of casing on the protrusion when having avoided the handle not to use.

The utility model discloses further set up to: the middle part of the accommodating groove is provided with a taking and placing groove with the width larger than that of the accommodating groove.

Through adopting above-mentioned technical scheme, get setting up of putting the groove and made things convenient for the user to rotate out the handle by the holding tank when the handle is located the holding tank.

The utility model discloses further set up to: four lower feet are fixedly arranged at four corners of the lower surface of the lower cover plate.

Through adopting above-mentioned technical scheme, the setting of lower margin has made things convenient for placing of charger, has also reduced the possibility that causes wearing and tearing to lower apron at the in-process of placing the charger.

The utility model discloses further set up to: the upper shell, the supporting body and the lower cover plate are fixedly connected through screws, and countersunk screw holes for accommodating the screws are arranged on the upper shell, the supporting body and the lower cover plate corresponding to the positions of the screws.

By adopting the technical scheme, the countersunk head screw hole and the screw are connected with the upper shell, the supporting body and the lower cover plate, so that the surface of the charger is relatively smooth, and the connection between each part of the charger is relatively stable.

To sum up, the utility model discloses a beneficial technological effect does:

1. the circuit board is arranged in the closed cavity, heat emitted by the circuit board is emitted through the supporting body, the supporting body is cooled by the fan, and the fan is a waterproof fan, so that the charger meets the heat dissipation requirement of the charger and avoids the circuit board from being influenced by the external environment;

2. the arrangement of the guide plate limits the flow direction of the air flow, so that the heat dissipation effect of the charger is further improved;

3. different guide plate intervals are arranged according to different heat dissipation requirements, so that the heat dissipation requirements of different areas of the circuit board are met, and the charger is light and convenient as a whole.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the upper housing engaged with the support body;

FIG. 3 is a schematic view illustrating a structure of the support body and the lower cover plate;

fig. 4 is a schematic diagram showing a structure of the baffle plate and the fan.

In the figure, 1, an upper shell; 11. a top plate; 111. a handle; 112. accommodating grooves; 113. a taking and placing groove; 114. a connecting portion; 115. connecting columns; 12. a side wall; 2. a support body; 21. a support plate; 22. an end plate; 221. a vent; 23. a side plate; 24. a baffle; 3. a lower cover plate; 31. ground feet; 4. a fan.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 3, a charger housing structure includes an upper housing 1, a support 2, and a lower cover plate 3, wherein the upper housing 1, the support 2, and the lower cover plate 3 are assembled into an integral rectangular parallelepiped structure.

Referring to fig. 2 and 4, the support body 2 includes a horizontally disposed rectangular support plate 21, a vertical rectangular end plate 22 disposed at one end of the support plate 21, and vertical rectangular side plates 23 disposed at both sides of the support plate 21.

The circuit board of the charger is disposed on the upper surface of the supporting plate 21, one side of the supporting plate 21 is fixedly connected with the end plate 22, and the end plate 22 is divided into an upper rectangular part and a lower rectangular part by the connecting line of the supporting plate 21 and the end plate 22. The rectangular portion of the end plate 22 above is provided with two connection ports for receiving a large fluctuating voltage and outputting a small stable voltage, respectively, the connection ports being passed only by a wire and the connection ports being sealed by a screw thread. Two ventilation openings 221 are horizontally arranged side by side in the rectangular portion below the end plate 22, each ventilation opening 221 is of a circular mesh structure formed by surrounding eight fan-shaped openings, four countersunk screw holes are uniformly distributed on the outer peripheral side of each ventilation opening 221, each ventilation opening 221 is correspondingly provided with one fan 4, each fan 4 is arranged on one side, facing the supporting plate 21, of the end plate 22, and the screws penetrate through the four countersunk screw holes and are in threaded connection with the fans 4 to enable the fans 4 to be fixed on the end plate 22.

The long limit of curb plate 23 equals with the long limit length of backup pad 21, and the minor face of curb plate 23 equals with the rectangle part minor face length that end plate 22 is located the below, and curb plate 23 is vertical to be set up, and the curb plate 23 is located the long limit of top and backup pad 21's long limit fixed connection, and the minor face that is close to end plate 22 is located the rectangle part minor face fixed connection of below with end plate 22, and two curb plates 23 all are located the below of backup pad 21.

The support plate 21, the end plate 22, and the side plate 23 are integrally formed.

Referring to fig. 1 and 2, the upper casing 1 includes a horizontal rectangular top plate 11 and three vertical rectangular side walls 12 disposed below the top plate 11 and respectively connected to three sides of the top plate 11, the length and width of the top plate 11 correspond to the length and width of the supporting plate 21, the three side walls 12 are respectively located on three sides of the top plate 11 not close to the end plate 22, an inverted U-shaped connecting portion 114 is integrally disposed on one side of the upper casing 1 close to the end plate 22, the connecting portion 114 is an inverted U-shaped annular plate having three portions respectively connected to three sides of the upper casing 1 close to the end plate 22, six countersunk screw holes are uniformly disposed on the edge of the end plate 22 above the supporting plate 21, six screw holes are uniformly distributed on the connecting portion 114 and correspond to the edge of the end plate 22 above the supporting plate 21, and screws are inserted into the screw holes from the countersunk screw holes on the edge of the rectangular portion above the end plate 22 to connect the end plate 22 to the upper casing 1 And (6) connecting.

Go up 1 inboard even an organic whole in bottom of casing and be provided with the vertical spliced pole 115 of axis of a plurality of vertical screw holes, backup pad 21 edge is provided with the countersunk screw hole with screw thread post one-to-one, countersunk screw wears to the threaded hole of the spliced pole 115 of backup pad 21 top by backup pad 21 below, in order to realize backup pad 21 and last 1 fixed connection of casing, go up casing 1 and backup pad 21, the rectangle part that end plate 22 is located the top surrounds and forms the airtight space of placing the circuit board, thereby can avoid the circuit board to receive the influence of the moist environment that outside probably exists.

Referring to fig. 4, a plurality of connecting columns 115 with vertical threaded holes and vertical axes are uniformly arranged at the bottom of the inner side of the side plate 23 and the bottom of the end plate 22, a plurality of countersunk screw holes corresponding to the connecting columns 115 at the bottom of the inner side of the side plate 23 and the bottom of the end plate 22 one by one are arranged at the edge of the lower cover plate 3, and screws penetrate into the threaded holes of the connecting columns 115 at the bottom of the inner side of the side plate 23 and the bottom of the end plate 22 from the lower part of the lower cover plate 3, so that the lower cover plate.

Because the circuit board is arranged close to the supporting plate 21, the heat of the circuit board can be conducted to the supporting plate 21 when the circuit board is heated in work, and when the fan 4 works, the fan 4 enables the lower surface of the supporting plate 21 to form an air flow which is close to one end of the end plate 22 through the supporting plate 21, so that the heat on the surface of the supporting plate 21 can be taken away, the cooling of the supporting plate 21 is realized, the heat emitted by the circuit board can be emitted through the supporting plate 21, namely, the heat radiation of the circuit board is realized on the basis of keeping the circuit board in a relatively closed environment and avoiding the influence of the possibly.

It will be appreciated that in order to allow the fan 4 to function properly in a wet environment, the fan 4 is provided as a waterproof fan 4.

Referring to fig. 3 and 4, in order to improve the heat dissipation effect of the fan 4, a plurality of vertical air deflectors 24 are disposed between the support plate 21 and the lower cover plate 3, the air deflectors 24 integrally stand on the lower surface of the support plate 21, and the length direction of the air deflectors is parallel to the side plates 23, and the space between adjacent air deflectors 24 or the space between the air deflectors 24 and the side plates 23 forms an air duct through which the air flow blown by the fan 4 passes. The arrangement of the guide plate 24 can limit the flow direction of the air flow, so that the air flow formed by the fan 4 stably flows along the air channel, and the heat on the surface of the support plate 21 can be taken away more quickly.

Because the functions of all parts of the circuit board are different, the heating conditions of all parts of the circuit board are also different, the smaller the spacing between the baffles 24, the correspondingly faster the flow rate of the air stream through that portion, and the greater the amount of heat that can be removed, and the charger itself is of a quality requirement, that is, the overall mass of the charger cannot exceed the required maximum mass, so in this embodiment, the closely arranged deflectors 24 are arranged near the side of the circuit board where the heat generation is severe, the interval between adjacent deflectors 24 is small, the sparsely arranged guide plates 24 are arranged on one side of the circuit board where the heating condition is slight, the interval between the adjacent guide plates 24 is large, the mode of determining the interval between the guide plates 24 according to different heat dissipation requirements, the overall quality requirement of the charger is met on the basis of keeping the heat dissipation effect, even if the charger is overall more portable.

Preferably, the lengths of the different guide plates 24 are different, and the two ends of the guide plates 24 are staggered, so that the airflow can be divided and converged at different positions when passing through the guide plates 24, thereby changing the flow direction at the divided and converged positions, and facilitating the airflow to pass through the surface of the whole support plate 21.

In order to further enhance the connection strength between the lower cover plate 3 and the support body 2, a plurality of vertical threaded holes are also formed in the guide plate 24 located in the middle of the two side plates 23, countersunk screw holes are correspondingly formed in the positions, corresponding to the threaded holes in the guide plate 24, of the lower cover plate 3 one by one, and screws penetrate through the countersunk screw holes in the middle of the lower cover plate 3 from the lower portion of the lower cover plate 3 to the threaded holes in the guide plate 24, so that the lower cover plate 3 is fixedly connected with the guide plate 24, and the connection strength between the lower cover plate 3 and the support body 2 is enhanced.

Referring to fig. 1 and 2, further, in order to facilitate taking out the charger, a U-shaped handle 111 is disposed at a middle portion of the top plate 11 of the upper housing 1, two ends of the handle 111 are vertically and rotatably connected to the top plate 11, a U-shaped receiving groove 112 for receiving the handle 111 is disposed at a middle portion of the top plate 11 corresponding to the handle 111, and the handle 111 is located in the receiving groove 112 when rotated to a horizontal state, so as to prevent the handle 111 from occupying a space of the upper housing 1 when not in use. In order to facilitate the handle 111 to rotate out of the receiving groove 112, a pick-and-place groove 113 having a width larger than that of the receiving groove 112 is disposed at a middle portion of the U-shaped structure of the receiving groove 112, so that when the handle 111 is located in the receiving groove 112, a user can rotate the handle 111 out of the receiving groove 112 more conveniently through the pick-and-place groove 113.

Referring to fig. 3, further, for the convenience of placing the charger, four feet 31 are arranged at the bottom of the lower cover plate 3, the four feet 31 are respectively and fixedly arranged at the positions of four corners of the lower cover plate 3, the charger can be more stably placed on the ground through the four feet 31, and meanwhile, the abrasion to the lower cover plate 3 can also be reduced.

Referring to fig. 1, in order to prevent the edges of the charger case from scratching the user, the edges of the outer side of the charger are chamfered into circular arc shapes.

In the specific working process: in the process of using the charger, the circuit board generates heat due to work, when the fan 4 works, airflow flows along the air channel to take away the heat of the supporting plate 21, and the heat of the circuit board can be continuously dissipated to the supporting plate 21, so that the heat of the circuit board can be taken away by the airflow blown out by the fan 4; because the space of the circuit board is relatively closed, the influence of the circuit board on a possibly existing humid environment is reduced, the fan 4 is the waterproof fan 4, and the wiring terminal is subjected to waterproof sealing treatment, so that the charger can be used in the environments such as humid and rainy days; the fan 4 is arranged outside the cavity for placing the circuit board, so that the space for storing the circuit board is saved, and typesetting of the circuit board is facilitated; the interval between the guide plates 24 is set according to the heat dissipation requirement of the corresponding circuit board area, so that the charger is light and convenient on the basis of keeping a good heat dissipation effect; the two ends of the guide plates 24 are arranged in a staggered manner, so that the airflow blown out by the fan 4 is divided and converged at different positions, and the airflow can pass through the surface of the whole support plate 21, so that the heat dissipation effect of the charger is better; the handle 111 and the ground feet 31 are arranged to facilitate taking and placing of the charger.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A charger shell structure which is characterized in that: including supporter (2) that is used for bearing circuit board and fan (4), lock in supporter (2) and surround with supporter (2) and form last casing (1) of the airtight space of depositing the circuit board, lock in supporter (2) and with supporter (2) between form supply fan (4) to blow out lower apron (3) of the parallel opening through the circuit board lower surface of air current, supporter (2) are including separating opening and depositing backup pad (21) of the airtight space of circuit board, fan (4) set up to waterproof fan (4).

2. A charger housing structure according to claim 1, wherein: a plurality of guide plates (24) used for shunting the airflow blown out by the fan (4) are arranged between the support plate (21) and the lower cover plate (3), and an air channel for passing the airflow is formed between the guide plates (24).

3. A charger housing structure according to claim 2, wherein: the interval between the guide plates (24) is smaller corresponding to the area with more serious heating condition of the circuit board, and the interval between the guide plates (24) is larger corresponding to the area with less heating condition of the circuit board.

4. A charger housing structure according to claim 2, wherein: the lengths of the guide plates (24) are different, and the two ends of the guide plates (24) are arranged in a staggered mode.

5. A charger housing structure according to claim 1, wherein: the top of the upper shell (1) is vertically hinged with a U-shaped handle (111) for being held by a human hand.

6. The charger housing structure as claimed in claim 5, wherein: go up casing (1) top and be provided with holding tank (112) that hold handle (111), handle (111) rotate to the level when being located holding tank (112).

7. The charger housing structure of claim 6, wherein: the middle part of the accommodating groove (112) is provided with a taking and placing groove (113) with the width larger than that of the accommodating groove (112).

8. A charger housing structure according to claim 1, wherein: four ground feet (31) are fixedly arranged at four corners of the lower surface of the lower cover plate (3).

9. A charger housing structure according to claim 1, wherein: go up casing (1), supporter (2), apron (3) down and pass through screw fixed connection, it is provided with the countersunk screw hole that holds the screw to correspond the screw position on casing (1), supporter (2), apron (3) down.