CN203840686U - Protective shell of handheld electronic device - Google Patents

Abstract

A protective case for a handheld electronic device, including a casing and a fan module; the casing has a fan chamber and an electronic device chamber inside, and the casing is provided with a side air inlet and a side air outlet , the side air inlet and the side air outlet are respectively connected with the fan chamber; the fan module is located in the fan chamber. Accordingly, the protective case of the present invention can effectively solve the problem that previous protective cases would deteriorate the heat dissipation effect of handheld electronic devices.

Description

Protective cases for handheld electronic devices

technical field

The utility model relates to a protective case of a hand-held electronic device, in particular to a protective case of a hand-held electronic device provided with a cooling fan.

Background technique

Please refer to FIG. 1 , an existing protective case 9 for a handheld electronic device is to combine an inner protective layer and an outer decorative layer on the inner and outer surfaces of a support plate, respectively. Accordingly, when the existing protective case 9 is set outside a hand-held electronic device, the support plate and the inner protective layer can jointly provide a protective function to protect the portable electronic device from being scratched in normal use. Injuries, and when the portable electronic device is accidentally dropped or hit, it reduces the chance of screen cracks and casing deformation; at the same time, the existing protective shell 9 can also be presented through its outer decorative layer A multi-style pattern is produced, so that the existing protective shell 9 can also have a decorative effect, so as to stimulate consumers' willingness to purchase.

Wherein, the side edge of this existing protective shell 9 is provided with several functional openings 91, when the hand-held electronic device is nested in this existing protective shell 9, each function that is located at the side edge of this hand-held electronic device Keys (for example: power key, volume adjustment key, camera key, etc.) or slots (for example: power cord hole, earphone hole, etc.) can be exposed for use. In addition, the existing protective shell 9 can also be provided with several through holes 92, so as to form a three-dimensional sense of touch with its outer decoration layer, thereby enhancing the sense of product value. An embodiment of the existing protective case 9 has been disclosed in the Taiwan patent case No. M452536 "Mobile Phone Protective Case".

In addition, other announcements such as China Taiwan Announcement No. M451861 "Protective Case", No. M453334 "Improved Structure of Mobile Phone Protective Case", No. M453329 "Structure of Mobile Phone Protective Cover" and No. M453300 "Instrument of Portable Electronic Device with Sound Effect Optimization" "Protective Shell" and other patent cases have also disclosed various existing protective shells for hand-held electronic devices; generally speaking, these existing protective shells are only in addition to the functions of protection and decoration. Additional extras such as card placement, optimized sound effects, three-dimensional support for easy reading, and more.

However, in order to enhance market competitiveness, today's trend of pursuing high performance in handheld electronic devices has led to continuous increase in the heating temperature of handheld electronic devices during operation. Coupled with the demand for thinner and lighter products, the size of each electronic component has been compressed. The heat dissipation space often causes the hand-held electronic device to overheat during operation; at this time, if the hand-held electronic device is covered with a protective case, the heat dissipation efficiency of the hand-held electronic device will be further reduced, resulting in unstable performance The situation affects the reliability of electronic products, and causes functional characteristics to decline, unable to perform or even crash.

Therefore, no matter using any of the above-mentioned protective shells of the existing handheld electronic devices, the heat dissipation efficiency of the handheld electronic devices will be affected, but if it is not used, it will not be able to provide protection to reduce the probability of damage, thus causing users dilemma. On the other hand, as far as the above-mentioned existing protective shell 9 is concerned, even the several round holes 92 can also be used as passages for airflow, so that the high-temperature airflow generated during the operation of the handheld electronic device can pass through the several round holes. The holes 92 overflow to the outside, but when the handheld electronic device is placed on a flat surface (such as a desktop), the several round holes 92 will be completely closed and lose the heat dissipation function.

Based on the above reasons, it is necessary to improve the protective shells of the existing handheld electronic devices.

Utility model content

The purpose of the utility model is to provide a protective case for a handheld electronic device, which can also have the function of auxiliary heat dissipation, so as to improve the heat dissipation efficiency of the handheld electronic device during operation.

Another object of the present invention is to provide a protective case for a handheld electronic device. Even if the handheld electronic device equipped with the protective case is placed on a flat surface, the auxiliary heat dissipation function of the protective case can still be effectively exerted.

In order to achieve the aforementioned purpose, the technical content used in the utility model includes:

A protective case for a hand-held electronic device, comprising: a case with a fan chamber and an electronic device chamber inside, the case is provided with a side air inlet and a side air outlet, the side air inlet and the side The air outlets communicate with the fan chamber respectively; and a fan module has a heat dissipation fan arranged in the fan chamber.

Wherein, the housing has a base plate and a side wall, the base plate has an opposite inner surface and an outer surface, and the side wall is arranged on the peripheral edge of the base plate to jointly form the fan chamber with the inner surface of the base plate and the electronic device chamber; the fan chamber is adjacent to the electronic device chamber in the axial direction of the cooling fan, and the fan chamber is closer to the inner surface of the substrate than the electronic device chamber.

Wherein, the side air inlet is arranged at one side end of the side wall.

Wherein, the side wall is provided with another side air inlet, and the two side air inlets are respectively arranged at two opposite side ends of the side wall.

Wherein, the side air outlet is arranged at the end edge of the side wall connected with the base plate.

Wherein, the substrate is provided with at least one auxiliary air inlet, and the auxiliary air inlet penetrates the inner surface and the outer surface of the substrate.

Wherein, the substrate is in a convex arc shape. Moreover, the auxiliary air inlet is located at the most convex part of the substrate.

Wherein, the housing is divided into an outer shell and an inner shell, the inner shell is accommodated in the outer shell, the base plate and the side wall constitute the outer shell, the inner shell includes a partition, and the partition has an opposite lower surface and an upper surface, the fan chamber is formed between the lower surface of the partition and the inner surface of the base plate.

Wherein, the dividing plate is provided with an air inlet, and the air inlet runs through the lower surface and the upper surface of the dividing plate, and the fan chamber and the electronic device chamber communicate with each other through the air inlet; One side of the board is adjacent to the side air inlet of the side wall.

Wherein, the outer shell can also set up a side air inlet at the end edge of the side wall provided with the side air inlet, and make the side air inlet adjacent to the air inlet of the inner shell; or, the protective shell The outer shell can choose to set several ribs on the inner surface of the end edge where the side air inlet is provided on the side wall, and preferably make the several ribs opposite to the air inlet of the inner shell; or, the protective shell The outer shell can choose to make the local end edge of the side wall provided with the side air inlet to be in the form of a thin shell to form a thin shell area, and preferably make the thin shell area opposite to the air inlet of the inner shell, Or the thin shell area extends from the end edge of the side wall to the fan chamber.

Wherein, the dividing plate is provided with a slot, and the open end of the slot faces the side air outlet.

Wherein, the inner shell further includes a transverse rib, which protrudes from the lower surface of the partition, one end of the transverse rib is connected to the side end of the partition provided with the air inlet, and the other end of the transverse rib is Extending toward the other side end of the partition, the air inlet is located between the transverse rib and the notch.

Wherein, the transverse rib abuts against the inner surface of the substrate. In addition, two spacers protrude from the lower surface of the partition, one ends of the two spacers are respectively connected to the transverse ribs, and the other ends of the two spacers are flared along the side edge of the notch. ; The two spacers do not abut against the inner surface of the base plate, so that the two spacers and the transverse rib jointly enclose an open space that can assist airflow concentration.

Wherein, the side of the transverse rib facing the notch is the front side of the transverse rib, the side of the transverse rib facing away from the notch is the rear side of the transverse rib, and the transverse rib is provided with a gap.

Wherein, the heat dissipation fan pair is located on the front side of the transverse rib and between the two partitions; the fan module further includes a controller, which is assembled and combined on the lower surface of the partition and located on the transverse rib. The rear side of the rib, and the controller is electrically connected to the cooling fan.

Wherein, the heat dissipation fan is a centrifugal fan, and the heat dissipation fan has a main air inlet in the axial direction, and an air outlet in the radial direction of the heat dissipation fan, and the air outlet faces the side air outlet. Also, the main air inlet faces the lower surface of the partition, leaving a gap without contacting the lower surface of the partition,

Wherein, the cooling fan further has an auxiliary air inlet, the auxiliary air inlet is axially opposite to the main air inlet, and the auxiliary air inlet is opposite to the auxiliary air inlet of the base plate.

Wherein, the side wall is provided with several positioning parts on the inner surface of the side air inlet, and the lower surface of the partition is provided with several positioning parts, and the several positioning parts of the partition of the inner shell are respectively assembled and connected to the outer shell Several positioning parts of the side wall.

According to the aforementioned structure, the protective case of the handheld electronic device can not only have the function of auxiliary heat dissipation, so as to improve the heat dissipation efficiency of the handheld electronic device during operation, but also can be used when the handheld electronic device equipped with the protective case is used. When placed on a flat surface, it can still effectively play its auxiliary heat dissipation function.

Description of drawings

FIG. 1 is a schematic structural diagram of a conventional protective case for a handheld electronic device.

Fig. 2 is a three-dimensional exploded schematic diagram of an embodiment of the present invention.

Fig. 3 is a three-dimensional structural schematic diagram of an embodiment of the present invention.

Fig. 4 is a cross-sectional structure and implementation schematic diagram of the line 4-4 in Fig. 3 .

Fig. 5 is a cross-sectional structure and implementation schematic diagram of the section line 5-5 in Fig. 3 .

Fig. 6 is a schematic perspective view of another embodiment of the utility model.

Fig. 7 is a cross-sectional structure and implementation schematic diagram of the line 7-7 in Fig. 6 .

Fig. 8 is a schematic diagram of a three-dimensional structure of another embodiment of the present invention.

Fig. 9 is a cross-sectional structure and implementation schematic diagram of the section line 9-9 in Fig. 8 .

Fig. 10 is a schematic perspective view of the three-dimensional structure of another embodiment of the present invention.

Fig. 11 is a cross-sectional structure and implementation schematic diagram of the line 11-11 in Fig. 10 .

FIG. 12 is a cross-sectional structure and a schematic diagram of implementation when the thin shell region in FIG. 11 is set to a longer shape.

【Symbol Description】

[this utility model]

1 shell 1a shell

1b inner shell 11 side air inlet

12 Side air outlet 13 Base plate

13a inner surface 13b outer surface

131 Auxiliary air inlet 132 Damper

14 side wall 141 positioning department

15 clapboard 15a lower surface

15b upper surface 151 positioning part

152 air inlet 153 lack of slot

16 transverse ribs 161 notches

17 Partitions 18 Side air inlets

2 fan modules 21 cooling fans

211 bracket group 212 main air inlet

213 auxiliary air inlet 214 air outlet

22 controller E handheld electronic device

S1 fan compartment S2 electronic device compartment

P plane Z thin shell region

〔current technology〕

9 Protective shell 91 Functional openings 92 Round holes.

Detailed ways

In order to make the above-mentioned and other purposes, features and advantages of the present utility model more obvious and understandable, the preferred embodiments of the present utility model are specially cited below, together with the accompanying drawings, to be described in detail as follows:

The protective case of the handheld electronic device of the utility model can be a protective case of handheld electronic devices such as mobile phones, tablet computers, handheld game consoles, music players, digital cameras, digital cameras, etc., which is especially suitable for mobile phones. The protective case is used as an example for description, but it is not limited thereto.

Please refer to Figures 2 and 3, which are an embodiment of the present invention. The protective case of the handheld electronic device of the present invention generally includes a housing 1 and a fan module 2, and the fan module 2 is located on the housing 1. When the fan module 2 is in operation, it can guide airflow into and out of the casing 1 to assist a handheld electronic device E to dissipate heat.

Please refer to Figures 2, 3, and 4, the casing 1 has a fan chamber S1 and an electronic device chamber S2 inside, the fan chamber S1 is used to place the fan module 2, and the electronic device chamber S2 is used to place the Handheld electronic device E; the casing 1 is provided with a side air inlet 11 and a side air outlet 12, and the side air inlet 11 and the side air outlet 12 are respectively connected with the fan chamber S1, so that the fan module 2 During operation, the guided air flows into the casing 1 from the side air inlet 11 and flows out of the casing 1 through the side air outlet 12 .

In this embodiment, the housing 1 can be divided into an outer shell 1a and an inner shell 1b. The outer shell 1a of the housing 1 has a base plate 13 and a side wall 14, and the base plate 13 has an opposite inner surface 13a and An outer surface 13b, the side wall 14 is arranged on the peripheral edge of the base plate 13, so as to jointly form the fan chamber S1 and the electronic device chamber S2 with the inner surface 13a of the base plate 13; The device chamber S2 is adjacent to the fan module 2 in the axial direction, and the fan chamber S1 is closer to the inner surface 13a of the substrate 13 than the electronic device chamber S2. Wherein, the side air inlet 11 can be arranged at one side end of the side wall 14, and preferably another side air inlet 11 can also be provided at the opposite side end, so as to enhance the air flow guided by the fan module 2. The air intake into the housing 1; the side air outlet 12 can be located on the side of the side wall 14 that does not have the side air inlet 11, and is preferably located at the end where the side wall 14 is connected to the base plate 13. edge to avoid covering the side air outlet 12 after the handheld electronic device is placed in the electronic device compartment S2.

In addition, the base plate 13 can be provided with at least one auxiliary air inlet 131, the auxiliary air inlet 131 runs through the inner surface 13a and the outer surface 13b of the base plate 13, so that the fan chamber S1 can communicate with the outside world; the auxiliary air inlet 131 The number, size and shape of the auxiliary air inlets 131 are not particularly limited, and the shape design of the auxiliary air inlets 131 can be changed arbitrarily to enhance the decorative effect of the protective case under the premise of providing sufficient wind guiding effect. In addition, the substrate 13 can also provide corresponding openings for the structures of the camera, speaker, or buttons of the handheld electronic device, which can be understood by those skilled in the art, so the substrate 13 should not be affected by the drawings of the present utility model. The disclosed structural forms are limited. In this embodiment, the base plate 13 can be selected to be in a convex arc shape, and the auxiliary air inlet 131 is located at the most protruding part of the base plate 13; moreover, the inner surface 13a of the base plate 13 can be provided with several baffles 132, the plurality of baffles 132 are located between the auxiliary air inlet 131 and the side air outlet 12, each of the baffles 132 can be a baffle body of any shape, which can block the airflow to produce a turbulence effect, so that the airflow changes The flow direction is not too fast to flow out from the side air outlet 12, so as to prolong the time for the airflow to stay in the fan chamber S1, so that the airflow can be discharged after heat exchange with a relatively high-temperature heat source, which helps to improve the hand-held The heat dissipation effect of the type electronic device E; the side wall 14 can be provided with a plurality of positioning portions 141 on the inner surface for assembly and connection of the inner shell 1b.

The inner shell 1b is accommodated in the outer shell 1a, and the inner shell 1b can be used for assembling and positioning the fan module 2, and when assembled to the outer shell 1a, the fan chamber S1 and the electronic device chamber S2 are separated, so that The fan compartment S1 and the electronic device compartment S2 are only partially communicated, so as to protect the fan module 2 from damage and maintain the airflow in the fan compartment S1 and the electronic device compartment S2 to communicate with each other. . In this embodiment, the inner shell 1b includes a partition 15, the partition 15 has a lower surface 15a and an upper surface 15b opposite to each other, the lower surface 15a of the partition 15 and the inner surface 13a of the base plate 13 The fan chamber S1 is formed between them. The lower surface 15a of the partition 15 is provided with several positioning portions 151, and the several positioning portions 151 of the partition 15 of the inner shell 1b can be respectively assembled with the several positioning portions 141 of the side wall 14 of the outer shell 1a; for example, but Without limitation, the positioning portion 141 of the side wall 14 of the outer shell 1a may be a convex strip, and the positioning portion 151 of the partition 15 of the inner shell 1b may be a recess for fitting.

The partition 15 is provided with an air inlet 152, and the air inlet 152 runs through the lower surface 15a and the upper surface 15b of the partition 15, so that the fan chamber S1 and the electronic device chamber S2 communicate with each other through the air inlet 152; In this embodiment, the air inlet 152 is located on one side of the partition 15 and adjacent to the side air inlet 11 of the side wall 14, so as to guide air to pass through the side air inlet 11 and the air inlet 152 in sequence. to flow into the fan chamber S1. Also, the number of the air inlets 152 can be selected as two in accordance with the number of the side air inlets 11, and the two air inlets 152 are respectively arranged on opposite sides of the partition 15, so as to connect with the corresponding side air inlets 11 respectively. next to each other. In addition, the partition 15 can be provided with a slot 153, the open end of the slot 153 faces the side air outlet 12, so that the slot 153 increases the communication between the fan chamber S1 and the electronic device chamber S2. area; it is worth mentioning that the slot 153 is preferably set at the position where the hand-held electronic device E is most prone to heat, so that after the protective case is assembled to the hand-held electronic device E, the heat dissipation efficiency can be improved. The optimal position is opposite to the part of the hand-held electronic device E that is most prone to heat, so as to improve the heat dissipation efficiency of the protective case to the hand-held electronic device E.

In addition, the inner shell 1b also includes a transverse rib 16 and two spacers 17, the transverse rib 16 and the two spacers 17 are respectively protruding from the lower surface 15a of the partition 15, so that the partition 15 The lower surface 15a is divided into several blocks. Specifically, one end of the cross rib 16 can be connected to the side end of the partition 15 provided with the air inlet 152, and the other end of the cross rib 16 extends toward the other side end of the partition 15, and can be connected to the side end of the partition 15. There may be a gap left on the other side of the partition 15; the air inlet 152 is located between the transverse rib 16 and the notch 153, and the side of the transverse rib 16 facing the notch 153 is the front side of the transverse rib 16 The side of the transverse rib 16 facing away from the notch 153 is the rear side of the transverse rib 16; the transverse rib 16 can abut against the inner surface 13a of the base plate 13 to assist the positioning of the inner shell 1b; and, The transverse rib 16 can be provided with a notch 161 passing through the front and rear sides, so that the front space and the rear space of the transverse rib 16 can communicate with each other. The two spacers 17 are arranged on the front side of the transverse rib 16, one ends of the two spacers 17 are respectively connected to the transverse rib 16, and the other ends of the two spacers 17 are along the side of the slot 153. The end edge forms a flaring; the height of the two spacers 17 is less than the height of the transverse rib 16 and does not abut against the inner surface 13a of the base plate 13, so that the two spacers 17 and the transverse rib 16 jointly enclose a An open space that assists in the concentration of airflow.

The fan module 2 may include a heat dissipation fan 21 and a controller 22 , the controller 22 is electrically connected to the heat dissipation fan 21 to drive the heat dissipation fan 21 to operate when heat dissipation is required. The cooling fan 21 and the controller 22 can be combined and fixed in the fan chamber S1 of the housing 1 , and the combination method is not limited. In this embodiment, the heat dissipation fan 21 can be positioned on the inner surface 13a of the base plate 13 by a bracket set 211, the heat dissipation fan 21 is located on the front side of the transverse rib 16, and is located between the two spacers 17 between. The radiating fan 21 is a centrifugal fan, and the radiating fan 21 can be, for example, a one-way air inlet centrifugal fan, and has a main air inlet 212 in the axial direction, or is preferably a two-way air inlet centrifugal fan. The fan further has an auxiliary air inlet 213 axially opposite to the main air inlet 212; The lower surface 15a contacts, and the auxiliary air inlet 213 can be positioned at the auxiliary air inlet 131 of the substrate 13; in addition, the cooling fan 21 has an air outlet 214 in the radial direction, and the air outlet 214 is preferably facing the side air outlet 12 . The controller 22 can be assembled on the lower surface 15a of the partition 15 by bonding or buckling, and is located on the rear side of the transverse rib 16, so as to prevent the user from accidentally installing the protective case. Carefully press the controller 22 to cause damage, and with the help of the gap 161 of the transverse rib 16, the airflow can enter and exit the front and rear sides of the transverse rib 16, which helps to reduce the operating temperature of the controller 22.

Please refer to Figures 3, 4, and 5. According to the aforementioned structure, the protective case of the present invention can be used for a handheld electronic device E to be combined in the electronic device chamber S2 from the back side, and the cooling fan of the fan module 2 21 during operation, guide the airflow in the fan chamber S1 to be discharged to the outside through the side air outlet 12 of the housing 1, so that the fan chamber S1 forms a negative pressure, thereby guiding the airflow from the outside to pass through the housing 1 in sequence The side air inlet 11 and the air inlet 152 of the side air inlet 152 are used to flow into the fan chamber S1, and flow into between the two spacers 17, and then the main air inlet 212 of the heat dissipation fan 21 sucks in the airflow, and is drawn by the heat dissipation fan 21. The air outlet 214 guides the air flow to the side air outlet 12 of the casing 1 , and takes away the air in the electronic device compartment S2 while passing through the slot 153 .

In this way, the low-temperature air outside the protective case can flow into the fan chamber S1, and guide the high-temperature air generated during the operation of the handheld electronic device E to be discharged from the inside of the protective case, so as to lift the handheld electronic device. The heat dissipation efficiency of E; therefore, using the protective case of the present utility model can not only provide the function of protecting the handheld electronic device E, but also further improve the heat dissipation efficiency of the handheld electronic device E, so that the handheld electronic device E can operate overheating will not occur. Wherein, if the cooling fan 21 is a two-way air-inlet centrifugal fan, when the cooling fan 21 is in operation, it can directly inhale the low-temperature airflow from the outside through the auxiliary air inlet 213 through the auxiliary air inlet 131 of the housing 1 synchronously. It helps to improve the heat dissipation efficiency of the fan module 2 to the handheld electronic device E.

It is worth mentioning that even if the handheld electronic device E equipped with the protective case is placed on the plane P, the side air inlet 11 and the side air outlet 12 of the housing 1 can still remain unshielded, so that the The fan module 2 can maintain the effect of smoothly guiding the air flow in and out of the casing 1, so the heat dissipation efficiency of the handheld electronic device E will not be affected, so that the protective case can effectively perform its auxiliary heat dissipation function.

In addition, please refer to FIG. 6, in another embodiment of the present utility model, the shell 1a of the protective case can further set up a side air inlet at the end edge of the side wall 14 provided with the side air inlet 11. The side air inlet 18 is adjacent to the air inlet 152 of the inner casing 1b. Accordingly, please refer to FIG. 7 , when the handheld electronic device E is combined with the protective case, the protective case can partially enlarge the casing 1 by means of the side air inlet 11 and the side air inlet 18 connected to each other. The area communicating between the inside and the outside makes it easier for the outside air to flow into the fan chamber S1 , which helps to improve the heat dissipation efficiency of the protective case for the handheld electronic device E.

Or, referring to FIG. 8, in another embodiment of the present invention, the outer shell 1a of the protective case can be provided with several convex ribs 19 on the inner surface of the end edge of the side wall 14 provided with the side air inlet 11, The plurality of ribs 19 can be arranged at intervals, and preferably, the plurality of ribs 19 are opposite to the air inlet 152 of the inner shell 1b. Accordingly, please refer to FIG. 9 , when the handheld electronic device E is combined with the protective case, the side ends of the handheld electronic device E can be abutted against the plurality of ribs 19 to utilize any two adjacent ribs 19, or even the slight deformation generated by the several convex ribs 19 pushing against the side wall 14, so as to locally increase the communication area between the inside and the outside of the casing 1, and also make the outside airflow more stable. It is easy to flow into the fan chamber S1, which helps to improve the heat dissipation efficiency of the protective case for the handheld electronic device E.

Or, please refer to FIG. 10 , in another embodiment of the present utility model, the outer shell 1a of the protective shell is provided with the local edge of the side air inlet 11 on the side wall 14, and the shell thickness can be thinner. A thin shell area Z is formed, and preferably the thin shell area Z is opposite to the air inlet 152 of the inner shell 1b. Accordingly, please refer to FIG. 11 , when the handheld electronic device E is combined with the protective case, the protective case can locally enlarge the interior of the housing 1 by means of the side air inlet 11 and the thin shell area Z that are connected. The area communicating with the outside can also make the outside air flow into the fan chamber S1 more easily, which helps to improve the heat dissipation efficiency of the protective case for the handheld electronic device E. In addition, please refer to FIG. 12 , when the thin shell region Z extends from the end edge of the side wall 14 toward the substrate 13 beyond the position where it is attached to the separator 15 (that is, the distribution range of the thin shell region Z is relatively long , extending from the end edge of the side wall 14 to the fan chamber S1), even if the partition 15 is not provided with the air inlet 152 shown in Figure 11, the outside air can still pass through the side air inlet 11 and the shell area Z flows into the fan chamber S1 to achieve the same effect of improving heat dissipation efficiency as mentioned above.

In summary, the protective case of the handheld electronic device of the present invention can be equipped with a fan module, so that the protective case not only has the basic functions of protection and decoration, but also has the function of auxiliary heat dissipation, so as to improve the performance of the handheld electronic device. The cooling efficiency of the device during operation.

The protective shell of the hand-held electronic device of the utility model, even if the hand-held electronic device equipped with the protective shell is placed on a plane, the side air inlet and the side air outlet of the housing can still be kept unshielded, so that the fan module The cooling fan can maintain smooth airflow, so that the protective case can effectively play its role of auxiliary heat dissipation.

Although the utility model has been disclosed by the above-mentioned preferred embodiments, it is not intended to limit the protection scope of the present utility model. Any person skilled in the art can carry out various operations relative to the above-mentioned embodiments without departing from the spirit and scope of the present invention. Changes and modifications still belong to the technical category protected by the present invention. the

Claims (25)

1. A protective case for a handheld electronic device, characterized in that it comprises: A casing with a fan chamber and an electronic device chamber inside, the casing is provided with a side air inlet and a side air outlet, the side air inlet and the side air outlet are respectively connected to the fan chamber; and A fan module has a cooling fan disposed in the fan chamber. 2. The protective case of a handheld electronic device as claimed in claim 1, wherein the housing has a base plate and a side wall, the base plate has an inner surface and an outer surface opposite to each other, and the side wall is located on The peripheral edge of the substrate forms the fan chamber and the electronic device chamber together with the inner surface of the substrate; the fan chamber and the electronic device chamber are adjacent in the axial direction of the cooling fan, and the The fan chamber is closer to the inner surface of the substrate than the electronic device chamber. 3 . The protective case for a handheld electronic device as claimed in claim 2 , wherein the side air inlet is disposed at one side of the side wall. 4 . 4. The protective case for a handheld electronic device according to claim 3, wherein the side wall is provided with another side air inlet, and the two side air inlets are respectively arranged at two opposite side ends of the side wall . 5 . The protective case of a handheld electronic device as claimed in claim 2 , wherein the side air outlet is disposed at an end edge of the side wall connected to the substrate. 6 . 6 . The protective case of a handheld electronic device as claimed in claim 2 , wherein the substrate is provided with at least one auxiliary air inlet, and the auxiliary air inlet penetrates the inner surface and the outer surface of the substrate. 7. The protective case of the handheld electronic device as claimed in claim 6, wherein the substrate is in a convex arc shape. 8 . The protective case for a handheld electronic device as claimed in claim 7 , wherein the auxiliary air inlet is located at the most protruding part of the substrate. 9. The protective case of a handheld electronic device as claimed in claim 2, wherein the case is divided into an outer case and an inner case, the inner case is accommodated in the outer case, and the substrate and the side wall constitute the The outer shell, the inner shell includes a baffle, the baffle has a lower surface and an upper surface opposite to each other, and the fan chamber is formed between the lower surface of the baffle and the inner surface of the base plate. 10. The protective case of a handheld electronic device as claimed in claim 9, wherein the partition is provided with an air inlet, the air inlet penetrates the lower surface and the upper surface of the partition, and the fan chamber and the The electronic device chambers communicate with each other through the air inlet. 11. The protective case for a handheld electronic device as claimed in claim 10, wherein the air inlet is located on one side of the partition and adjacent to the side air inlet of the side wall. 12 . The protective case for a handheld electronic device as claimed in claim 11 , wherein the partition is provided with a slot, and the open end of the slot faces the side air outlet. 13 . 13. The protective case for a handheld electronic device according to claim 12, wherein the inner case further comprises a transverse rib protruding from the lower surface of the partition, and one end of the transverse rib is connected to The side end of the partition is provided with an air inlet, and the other end of the transverse rib extends toward the other side of the partition, and the air inlet is located between the transverse rib and the notch. 14. The protective case of the handheld electronic device as claimed in claim 13, wherein the transverse rib abuts against the inner surface of the substrate. 15. The protective case for a handheld electronic device as claimed in claim 14, wherein two partitions are protruded from the lower surface of the partition, and one ends of the two partitions are respectively connected to the transverse rib, The other end of the two spacers forms a flaring along the side edge of the notch; the two spacers do not abut against the inner surface of the base plate, and the two spacers and the transverse rib jointly enclose a space that can assist An open space with concentrated air flow. 16. The protective case for a handheld electronic device according to claim 15, wherein the side of the transverse rib facing the notch is the front side of the transverse rib, and the side of the transverse rib facing away from the notch is It is the rear side of the transverse rib, and the transverse rib is provided with a notch running through the front and rear sides. 17. The protective case of a handheld electronic device as claimed in claim 16, wherein the cooling fan is located on the front side of the transverse rib and between the two partitions; the fan module further includes a control The controller is assembled on the lower surface of the partition and is located at the rear side of the transverse rib, and the controller is electrically connected to the cooling fan. 18. The protective case of a handheld electronic device according to claim 16, wherein the cooling fan is a centrifugal fan, and the cooling fan has a main air inlet in the axial direction, and the main air inlet faces the partition There is a gap between the lower surface of the plate and the lower surface of the partition without contacting with the lower surface of the partition. The cooling fan has an air outlet in the radial direction, and the air outlet faces the side air outlet. 19. The protective case for a handheld electronic device according to any one of claims 9 to 18, wherein the side wall is provided with several positioning portions on the inner surface, and the lower surface of the partition is provided with several positioning portions The several positioning parts of the partition plate of the inner shell are respectively assembled and connected to the several positioning parts of the side wall of the outer shell. 20. The protective case for a handheld electronic device according to any one of claims 11 to 18, wherein the side air inlet is arranged on the side wall, and the side air inlet is provided on the side wall of the housing A side air inlet is provided at the end edge of the inner casing, and the side air inlet is adjacent to the air inlet of the inner shell. 21. The protective case for a handheld electronic device according to any one of claims 11 to 18, wherein the side air inlet is arranged on the side wall, and the side air inlet is provided on the side wall of the housing Several convex ribs are arranged on the inner surface of the end edge of the inner shell, and the several convex ribs are opposite to the air inlet of the inner shell. 22. The protective case for a handheld electronic device according to any one of claims 11 to 18, wherein the side air inlet is arranged on the side wall, and the side air inlet is provided on the side wall of the housing The local end edge of the casing is thinner to form a thin shell area, and the thin shell area is opposite to the air inlet of the inner shell. 23. The protective case for a handheld electronic device according to any one of claims 9 to 18, wherein the side air inlet is arranged on the side wall, and the side air inlet is provided on the side wall of the housing The partial end edge of the casing is thinner to form a thin shell area, and the thin shell area extends from the end edge of the side wall to the fan chamber. 24. The protective case of a handheld electronic device as claimed in claim 1, wherein the heat dissipation fan is a centrifugal fan, the heat dissipation fan has a main air inlet in the axial direction, and the heat dissipation fan has a main air inlet in the radial direction. An air outlet, the air outlet faces the side air outlet. 25. The protective case of a handheld electronic device as claimed in claim 6, wherein the heat dissipation fan is a centrifugal fan, and the heat dissipation fan has a main air inlet and an auxiliary air inlet opposite to each other in the axial direction, The auxiliary air inlet is opposite to the auxiliary air inlet located on the base plate, and the cooling fan has an air outlet in the radial direction, and the air outlet faces the side air outlet.