TWI739244B - Server device - Google Patents

Abstract

A server device includes a case, an electronic assembly, a deflector and an airflow product. The case has a space. The electronic assembly includes a mother board and at least one expansion card. The mother board is in the space. The at least one expansion card includes a card body and a baffle mounting on the card body. The card body disposes on the mother board. The baffle fixes on the case. The deflector is out of the space. The deflector has wind guide channel and mounts on the baffle of the at least one expansion card. The airflow product mounts on the deflector. Wherein the baffle or the case has at least one opening and the at least one opening connects with the space and the wind guide channel.

Description

Servo device

The invention relates to a servo device, in particular to a servo device with a wind deflector.

At present, the server is widely used by various enterprises, and its scope of development combines the applications of the Internet and telecommunications, and it also penetrates into the lives of ordinary people, such as finance, finance, online banking, the use of online credit cards, artificial intelligence, etc. , These must rely on the powerful computing power of the server to do it. Take artificial intelligence as an example. Because artificial intelligence technology requires a larger amount of computing processing, it needs to be equipped with a large number of high-performance graphics cards. However, the high-performance graphics card will also bring a lot of waste heat. If the waste heat cannot be discharged from the server immediately, the accumulated waste heat may reduce the computing performance of the high-performance graphics card, or even cause heat.

The existing practice is to add fans both inside and outside the server to enhance the heat dissipation airflow through the high-performance graphics card. However, since the external fan of the existing server is directly installed on the chassis and can only dissipate heat for a single graphics card, if the chassis used by the user does not have a structure for external fan assembly, the user may need to replace the chassis , Or you can only use the high-performance graphics card at a slower speed to avoid the heat of the high-performance graphics card.

The present invention is to provide a servo device to solve the problem that the traditional servo device cannot be installed with an external fan or can only be installed with a specific external fan.

The servo device disclosed in an embodiment of the present invention includes a chassis, an electronic component, a wind deflector, and an airflow generator. The case has an accommodating space. The electronic component includes a motherboard and at least one expansion card. The main board is located in the accommodating space. At least one expansion card includes a fixed card body and a baffle plate. The card body is installed on the motherboard. The baffle is fixed to the chassis. The wind deflector is located outside the accommodating space. The air guiding hood has an air guiding channel and is installed on the baffle of at least one expansion card. The air flow generator is installed on the wind deflector. Wherein, the baffle or the case has at least one opening, and the at least one opening communicates with the accommodating space and the air guide channel.

According to the servo device of the above-mentioned embodiment, because the baffle of the expansion card in this embodiment is designed with a coupling hole, the user can directly install the air deflector and airflow generator sold by the expansion card manufacturer on the expansion card's block. Board, so that the heat generated by all expansion cards on the main board can be exported to the outside of the chassis at the same time. In this way, the user will not sacrifice the addition of the air baffle and external fan due to the limitation of the case, and there is no need to replace the original case in order to add the air baffle and external fan.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention.

Please refer to Figure 1 to Figure 2. FIG. 1 is a schematic plan view of the servo device according to the first embodiment of the present invention. Fig. 2 is an exploded schematic diagram of a part of the servo device of Fig. 1.

The servo device 10 of this embodiment includes a chassis 100, an electronic component 200, a wind deflector 300, and an airflow generator 400. The servo device 10 may also include a plurality of coupling members 500.

The chassis 100 includes, for example, a bottom plate 110, two side plates 120, and a back plate 130. The two side plates 120 and the back plate 130 are respectively connected to different sides of the bottom plate 110, and the bottom plate 110, the two side plates 120 and the back plate 130 jointly surround an accommodating space S1. The back plate 130 has a plurality of slots 131, and the slots 131 are arranged from one side plate 120 to the other side plate 120. The function of the slot 131 will be described later.

The electronic component 200 includes, for example, a motherboard 210 and a plurality of expansion cards 220. The motherboard 210 is located in the accommodating space S1, and is equipped with electronic components such as a central processing unit and a memory, for example. Each expansion card 220 includes, for example, a card body 221 and a baffle 222 that are fixed to each other. The card body 221 is, for example, directly inserted into the expansion slot of the motherboard 210 and has a connection port 2211. The connecting port 2211 passes through the baffle 222. The baffle 222 is fixed to the back plate 130 of the chassis 100 by screws, for example, and the baffle 222 covers the slot 131 of the back plate 130, and the connection port 2211 is partially located outside the chassis 100 through the slot 131. In addition, the baffle 222 has a plurality of openings 2222, and these openings 2222 communicate with the accommodating space S1 and the space outside the chassis 100. The function of the opening 2222 will be described later.

In this embodiment, the expansion card 220 takes a display card as an example, and the port 2211 is, for example, a high-definition multimedia interface (HDMI), a DisplayPort (DP), a digital visual interface (DVI), a VGA terminal (Video Graphics Array connector) and other video and audio signal ports.

In this embodiment, the servo device 10 may further include a plurality of front cooling fans 60 and a rear cooling fan 70. The front cooling fans 60 are located in the accommodating space S1 and are installed on the expansion card 220 on a side away from the backplane 130, and the heat dissipation airflow generated by the front cooling fans 60 is used to blow the expansion card 220 and the motherboard 210 The rest of the electronic components above can further enhance the anti-heat capability of the servo device 10. The rear cooling fan 70 is installed on the back plate 130 of the chassis 100, and the heat dissipation airflow generated by the rear cooling fan 70 is used to blow the remaining electronic components on the motherboard 210 to de-heat the electronic components 200 of the servo device 10 . However, for a higher-performance electronic component 200, since the higher-performance electronic component 200 generates higher waste heat, the front cooling fan 60 and the rear cooling fan 70 may not be enough to remove the electronic components. When the waste heat is 200, the air guide 300 and the air flow generator 400 can be used to further deheat the electronic component 200.

In detail, the wind deflector 300 is located on the outer side of the chassis 100. The air guiding hood 300 has an air guiding channel S2 and is installed on the two baffles 222 of the two expansion cards 220 located on opposite sides, so that the air guiding channel S2 communicates with the accommodating space S1 through the openings 2222 on the baffle 222 . Specifically, each baffle 222 has at least one coupling hole 2221. In this embodiment, each baffle 222 takes four coupling holes 2221 as an example, and two groups are taken as a group, divided into two groups, and the two sets of coupling holes 2221 are respectively adjacent to opposite sides of the baffle 222. The wind deflector 300 includes a plurality of cover plates 310, two assembly plates 320 and a fixing frame 330. Any two adjacent cover plates 310 are connected to each other, so that these cover plates 310 collectively surround the air guiding channel S2. The fixing frame 330 is connected to the covering plates 310, and one end of the covering plates 310 away from the fixing frame 330 collectively surrounds the air inlet O1, and the fixing frame 330 surrounds the air outlet O2. The accommodating space S1 is connected to the air inlet O1, the air guide channel S2 and the air outlet O2 in sequence.

For example, the two assembly plates 320 are respectively connected to two cover plates 310 located on opposite sides, and are located at one end of the two cover plates 310 relatively far away from the fixed frame 330. Each of the two assembly plates 320 has at least one perforation 321, and this embodiment takes two perforations 321 as an example. The coupling members 500 are, for example, screws, and the coupling members 500 respectively pass through the through holes 321 of the two assembling boards 320, and are respectively coupled to the two sets of coupling holes 2221 located at the relatively outermost sides of the baffles 222 of the expansion cards 220. The wind deflector 300 is assembled to the second baffle 222 of the two expansion cards 220 located on opposite sides.

The air flow generator 400 is, for example, a fan, and is installed in the fixed frame 330 of the wind deflector 300. In other words, the airflow generator 400 is installed at the air outlet O2 of the wind deflector 300. When the airflow generator 400 operates, the heat dissipation airflow F generated by the airflow generator 400 flows through the expansion card 220 in the accommodating space S1. Then, after the heat dissipation airflow F flows through the expansion card 220, it then flows through the opening 2222 and the air guiding channel S2, so as to discharge all the waste heat generated by the expansion card 220 out of the chassis 100.

Since the baffle 222 of the expansion card 220 is designed with a coupling hole 2221, if the chassis 100 does not have a structure for the air baffle 300 to be assembled, the air baffle 300 can also be assembled on the baffle 222 of the expansion card 220 to enhance the servo The anti-heat capability of the device 10. Furthermore, the actual situation will be explained. The chassis 100 of the conventional servo device 10 is not provided with a structure for connecting the wind deflector 300, so the wind deflector 300 cannot be installed. Unless the chassis 100 is replaced, the user cannot install the wind deflector 300 and an external fan. The heat dissipation performance of the servo device 10 is improved. On the contrary, because the baffle 222 of the expansion card 220 of this embodiment is designed with a coupling hole 2221, the user can directly install the air deflector 300 and the air flow generator 400 corresponding to the size of the expansion card 220 on the expansion card 220 Baffle 222. In this way, the user will not sacrifice the addition of the air deflector 300 and the external fan due to the limitation of the case 100, and there is no need to replace the original case 100 in order to add the air deflector 300 and the external fan.

In addition, when the air deflector 300 is assembled to the baffle 222 of the expansion card 220, the air inlet O1 of the air deflector 300 is closer to the chassis 100 than the air outlet O2, and as shown in FIG. 1, each cover plate 310 and the air inlet O1 An acute angle θ is included in the plane E, so that the cross-sectional area of the air guide channel S2 is gradually reduced in the direction away from the chassis 100, so that the area of the air inlet O1 of the air guide 300 is larger than the area of the air outlet O2 of the air guide 300 , And the air inlet O1 of the wind deflector 300 corresponds to multiple expansion cards 220. In this way, the servo device 10 only needs a single airflow generator 400 to deheat multiple expansion cards 220, thereby reducing the installation cost of the fan in the servo device 10.

In this embodiment, these coupling members 500 are screws as an example, but are not limited to this. In other embodiments, these coupling members 500 may also be rivets or fasteners. In addition, if electronic components that are susceptible to vibration are installed in the chassis 100, these coupling members 500 can also have a shock absorption function to further prevent the vibration generated by the operation of the airflow generator 400 from being transmitted to the chassis 100 through the air deflector 300 Internal electronic components.

In this embodiment, the coupling holes 2221 of the baffle 222 are divided into two groups and are respectively adjacent to opposite sides of the baffle 222, but it is not limited thereto. In other embodiments, the coupling holes 2221 of the baffle 222 may be only a single group, and are located in the middle of the baffle 222 or on the upper side.

In this embodiment, because the number of expansion cards 220 is multiple, the wind deflector 300 is installed on the two baffles 222 of the two expansion cards 220 located on the outermost sides, but it is not limited to this. The windshield 300 can also be installed only on the specific expansion card 220 that is not connected to the signal cable. In other embodiments, if the number of expansion cards 220 is only a single, the wind deflector 300 can also be installed on only a single expansion card 220.

In this embodiment, the number of the connection port 2211 is single, but it is not limited thereto. In other embodiments, the number of the connection ports 2211 can also be multiple.

In this embodiment, the card body 221 is directly inserted into the expansion slot of the motherboard 210, but it is not limited to this. In other embodiments, the card body 221 can also be inserted into the expansion slot of the motherboard 210 indirectly through a flexible strip.

In this embodiment, only the baffle 222 has an opening 2222, but it is not limited to this. In other embodiments, both the baffle 222 and the chassis 100 may have the opening 2222, or only the chassis 100 may have the opening 2222.

The aforementioned wind deflector 300 is an integrated structure, so that the size of the air inlet O1 of the wind deflector 300 is fixed, but it is not limited to this. Please refer to Figure 3 to Figure 5. Fig. 3 is an exploded schematic view of the wind deflector and the air flow generator according to the second embodiment of the present invention. Fig. 4 is a three-dimensional schematic diagram of the wind deflector of Fig. 3 in a folded state. Fig. 5 is a three-dimensional schematic diagram of the wind deflector of Fig. 3 in an unfolded state.

In this embodiment, the air guide cover 300a includes a main cover 310a and two sub-covers 320a. The main cover 310a includes a first side plate 311a and two second side plates 312a. The two second side plates 312a are respectively connected to opposite sides of the first side plate 311a, and the airflow generator 400 is installed on the first side plate 311a. Each secondary cover 320a includes a third side plate 321a and two fourth side plates 322a. The two fourth side plates 322a are respectively connected to opposite sides of the third side plate 321a, and the third side plate 321a covers a part of the first side plate 311a, and the two fourth side plates 322a respectively cover a part of the second side plate 312a. In addition, each secondary cover 320a may further include a fifth side plate 323a and an assembly plate 324a. The fifth side plate 323a is connected to the two fourth side plates 322a, and the assembly plate 324a is connected to the fifth side plate 323a, and is coupled to the baffle plate of the expansion card, for example, through a coupling member.

Since the assembling relationship between the two sub-covers 320a and the main cover 310a is the same, the assembling relationship between one of the sub-covers 320a and the main cover 310a will be described first. The wind deflector 300a of this embodiment further includes two first slide rail structures 350a and two second slide rail structures 360a. The two first sliding rail structures 350a are respectively located on one side of the two second side plates 312a away from the first side plate 311a. The two second slide rail structures 360a are respectively located on one side of the second side plate 322a of the second cover 320a away from the third side plate 321a. The first slide rail structure 350a and the second slide rail structure 360a are, for example, matching sliders and slide grooves, and the two second slide rail structures 360a are respectively slidably disposed on the two first slide rail structures 350a, so that one of them The auxiliary cover 320a is movably disposed on the main cover 310a. Similarly, the wind deflector 300a further includes two other second slide rail structures 360a. The other two second slide rail structures 360a are respectively located on one side of the second fourth side plate 322a of the other sub-cover 320a away from the third side plate 321a, and the other two second slide rail structures 360a are respectively slidably disposed on the second side plate 321a. A sliding rail structure 350a enables the other auxiliary cover 320a to be movably disposed on the main cover 310a.

It can be seen from the above description that the two sub-covers 320a are movably located on opposite sides of the main cover 310a, and the main cover 310a and the two sub-covers 320a jointly surround the air inlet and outlet O1. The second cover 320a can move relative to the main cover 310a to adjust the area of the air inlet O1. For example, if the number of expansion cards installed in the chassis increases, the user can adjust the relative positional relationship between the secondary cover 320a and the main cover 310a along the direction A to make the original air inlet O1 (as shown in Figure 4 As shown), adjust the air inlet O1' (as shown in FIG. 5) so that the range of the air inlet O1' covers the distribution area of the expansion card. That is, when the number of expansion cards in the chassis increases, the user can change the wind deflector 300a from the folded state (as shown in FIG. 4) to the unfolded state (as shown in FIG. 5) along the direction A.

Please refer to Figure 6 to Figure 8. Fig. 6 is an exploded schematic diagram of the wind deflector and the air flow generator according to the third embodiment of the present invention. Fig. 7 is a three-dimensional schematic diagram of the wind deflector of Fig. 6 in a folded state. Fig. 8 is a three-dimensional schematic diagram of the wind deflector of Fig. 6 in an unfolded state.

In this embodiment, the wind deflector 300b includes a main cover 310b and two auxiliary covers 320b. The main cover 310b includes a first side plate 311b and two second side plates 312b. The two second side plates 312b are respectively connected to opposite sides of the first side plate 311b, and the airflow generator 400 is installed on the first side plate 311b. Each secondary cover 320b includes a third side plate 321b and two fourth side plates 322b. The two fourth side plates 322b are respectively connected to opposite sides of the third side plate 321b, and the third side plate 321b covers a part of the first side plate 311b, and the two fourth side plates 322b respectively cover a part of the second side plate 312b.

Since the assembly relationship between the two sub-covers 320b and the main cover 310b is the same, the assembly relationship between one of the sub-covers 320b and the main cover 310b will be described first. The wind deflector 300b of this embodiment further includes a first slide rail structure 350b and a second slide rail structure 360b. The first slide rail structure 350b is located on the first side plate 311b. The second slide rail structure 360b is located on the third side plate 321b of one of the secondary covers 320b. The first slide rail structure 350b and the second slide rail structure 360b are, for example, matching T-shaped sliders and T-shaped slide grooves, and the second slide rail structure 360b is slidably disposed on the first slide rail structure 350b to make the A secondary cover 320b is movably disposed on the main cover 310b. Similarly, the wind deflector 300b further includes another second slide rail structure 360b. The other second slide rail structure 360b is located on the third side plate 321b of the other secondary cover 320b, and the other second slide rail structure 360b is slidably disposed on the first slide rail structure 350b, so that the other secondary cover 320b It is movably arranged on the main cover 310b.

It can be seen from the above description that the two sub-covers 320b are movably located on opposite sides of the main cover 310b, and the main cover 310b and the two sub-covers 320b jointly surround the air inlet and outlet O1. The second cover 320b can move relative to the main cover 310b to adjust the area of the air inlet O1. For example, if the number of expansion cards installed in the chassis increases, the user can adjust the relative positional relationship between the secondary cover 320b and the main cover 310b in the direction B to make the original air inlet O1 (as shown in FIG. 7 As shown), the air inlet O1' is enlarged (as shown in FIG. 8), so that the range of the air inlet O1' covers the distribution area of the expansion card. That is, when the number of expansion cards in the chassis increases, the user can change the wind deflector 300b from the folded state (as shown in FIG. 7) to the unfolded state (as shown in FIG. 8) along the direction B.

Please refer to Figure 9 to Figure 10. 9 is a schematic plan view of the air deflector according to the fourth embodiment of the present invention with an airflow generator, and the air deflector is in a folded state. Fig. 10 is a schematic plan view of the air duct of Fig. 9 in an unfolded state.

In this embodiment, the wind deflector 300c includes a main cover 310c and two auxiliary covers 320c. Since the assembly relationship between the two sub-covers 320c and the main cover 310c is the same, the assembly relationship between one of the sub-covers 320c and the main cover 310c will be described first. The wind deflector 300c of this embodiment further includes a first slide rail structure 350c and a second slide rail structure 360c. The first slide rail structure 350c is disposed on the main cover 310c. The second slide rail structure 360c is disposed in one of the sub-covers 320c. The first slide rail structure 350c and the second slide rail structure 360c are, for example, matching rollers and rails, and the second slide rail structure 360c is slidably disposed on the first slide rail structure 350c, so that one of the secondary covers 320c can be It is movably provided on the main cover 310c. Similarly, the wind deflector 300 further includes another first slide rail structure 350c and a second slide rail structure 360c. The other first slide rail structure 350c and the second slide rail structure 360c are respectively disposed on the main cover 310c and the other secondary cover 320c, and the other second slide rail structure 360c is slidably disposed on the other first slide rail The structure 350c allows another auxiliary cover 320c to be movably disposed on the main cover 310c.

It can be seen from the above description that the two sub-covers 320c are movably located on opposite sides of the main cover 310c, and the main cover 310c and the two sub-covers 320c jointly surround the air inlet and outlet. The second cover 320c can move relative to the main cover 310c to adjust the area of the air inlet. For example, if the number of expansion cards installed in the chassis increases, the user can adjust the relative positional relationship between the sub-cover 320c and the main cover 310c along the direction C, so as to remove the wind deflector 300c from the folded state ( As shown in Figure 9) change to the unfolded state (as shown in Figure 10).

In the foregoing embodiment, the number of sub-covers is two, and the two sub-covers are respectively located on opposite sides of the main cover, but it is not limited to this. In other embodiments, the number of sub-covers can also be single, which is located only on one side of the main cover.

Please refer to Figure 11 to Figure 12. FIG. 11 is a schematic plan view of a part of a servo device according to a fifth embodiment of the present invention. Fig. 12 is a schematic plan view of the cover of Fig. 11 covering the opening. The servo device 10d of this embodiment may include at least one external connector 380d in addition to the original chassis 100d, the wind deflector 300d, and the air flow generator 400d. The wind deflector 300d has an opening 370d and a cover 390d. The external connector 380d is fixed to the opening 370d of the wind deflector 300d, and is electrically connected to the connection port 2211d of the expansion card 222d. The cover 390d can be movably disposed in the opening 370d of the wind deflector 300d to cover or expose the external connector 380d. As shown in FIG. 11, when there is a need to connect an external electronic device such as a screen or a TV, the cover 390d can move along the direction D to expose the external connector 380d, so that the signal connection line of the external electronic device can be plugged in External connector 380d. On the contrary, as shown in FIG. 12, when there is no need to connect the external electronic device, the cover 390d can move in the opposite direction of the direction D so that the external connector 380d is covered by the cover 390d.

Of course, the wind deflector 300d of the above embodiment may only have an opening 370d and a cover 390d. When an external electronic device is required to overlap, the cover 390d can be opened so that the signal connection line can pass through the opening 370d and directly connect with The port connection of the expansion card.

According to the servo device of the above-mentioned embodiment, because the baffle of the expansion card in this embodiment is designed with a coupling hole, the user can directly install the air deflector and airflow generator sold by the expansion card manufacturer on the expansion card's block. plate. In this way, the user will not sacrifice the addition of the air baffle and external fan due to the limitation of the case, and there is no need to replace the original case in order to add the air baffle and external fan.

In at least some embodiments, the area of the air inlet of the air guide is larger than the area of the air outlet of the air guide, and the air inlet of the air guide corresponds to multiple expansion cards. In this way, the servo device only needs a single airflow generator to deheat multiple expansion cards, thereby reducing the installation cost of the fan in the servo device.

In at least some embodiments, since the sub-cover is movably located in the main cover, and the main cover and the two sub-covers surround the air inlet and outlet together, if the number of expansion cards installed in the chassis increases or decreases, then The user can adjust the relative positional relationship between the secondary cover and the main cover, so that the range of the air inlet covers the distribution area of the expansion card.

In at least some embodiments, the external connector is fixed to the opening of the wind deflector so that the external electronic device is electrically connected to the expansion card.

Although the present invention is disclosed in the foregoing embodiments as above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection for inventions shall be determined by the scope of patent applications attached to this specification.

10.10d: Servo device 60: Front cooling fan 70: Rear cooling fan 100, 100d: chassis 110: bottom plate 120: side panel 130: backplane 131: Slotting 200: Electronic components 210: Motherboard 220: Expansion card 221: Card Body 2211, 2211d: port 222, 222d: baffle 2221: Combination hole 2222: Hole 300, 300a, 300b, 300c, 300d: wind deflector 310: Cover plate 320: assembly board 321: Piercing 330: fixed frame 310a, 310b, 310c: main cover 311a, 311b: first side panel 312a, 312b: second side panel 320a, 320b, 320c: sub-cover 321a, 321b: third side panel 322a, 322b: fourth side panel 323a: Fifth side panel 324a: assembly board 350a, 350b, 350c: the first slide rail structure 360a, 360b, 360c: second slide rail structure 370d: opening 380d: External connector 390d: cover 400, 400d: airflow generator 500: Combination θ: acute angle O1, O1’: Air inlet O2: Air outlet S1: Housing space S2: Air duct A~D: Direction E: plane F: Cooling airflow

FIG. 1 is a schematic plan view of the servo device according to the first embodiment of the present invention. Fig. 2 is an exploded schematic diagram of a part of the servo device of Fig. 1. Fig. 3 is an exploded schematic view of the wind deflector and the air flow generator according to the second embodiment of the present invention. Fig. 4 is a three-dimensional schematic diagram of the wind deflector of Fig. 3 in a folded state. Fig. 5 is a three-dimensional schematic diagram of the wind deflector of Fig. 3 in an unfolded state. Fig. 6 is an exploded schematic diagram of the wind deflector and the air flow generator according to the third embodiment of the present invention. Fig. 7 is a three-dimensional schematic diagram of the wind deflector of Fig. 6 in a folded state. Fig. 8 is a three-dimensional schematic diagram of the wind deflector of Fig. 6 in an unfolded state. 9 is a schematic plan view of the air deflector according to the fourth embodiment of the present invention with an airflow generator, and the air deflector is in a folded state. Fig. 10 is a schematic plan view of the air duct of Fig. 9 in an unfolded state. FIG. 11 is a schematic plan view of a part of a servo device according to a fifth embodiment of the present invention. Fig. 12 is a schematic plan view of the cover of Fig. 11 covering the opening.

10: Servo device

60: Front cooling fan

70: Rear cooling fan

100: Chassis

110: bottom plate

120: side panel

130: backplane

200: Electronic components

210: Motherboard

220: Expansion card

300: Wind hood

310: Cover plate

400: Airflow generator

θ: acute angle

O1: Air inlet

E: plane

F: Cooling airflow

Claims (13)

A servo device includes: a chassis with an accommodating space; an electronic component, including a motherboard and at least one expansion card, the motherboard is located in the accommodating space, and the at least one expansion card includes a fixed one A card body and a baffle, the card body is installed on the main board, the baffle is fixed to the chassis; a wind deflector is located outside the accommodating space, the wind deflector has an air duct and is installed In the baffle of the at least one expansion card, the air duct has an air inlet and an air outlet opposite to each other, and the range of the air inlet covers the distribution area of the at least one expansion card; and an airflow generator is installed Set in the air guide; wherein, the baffle or the chassis has at least one opening, and the at least one opening communicates with the accommodating space and the air guide channel, and the heat dissipation airflow generated by the airflow generator will flow through The at least one expansion card in the accommodating space. In the servo device described in item 1 of the scope of patent application, the air inlet is closer to the chassis than the air outlet, and the airflow generator is installed at the air outlet. As for the servo device described in item 2 of the scope of patent application, the air deflector includes a plurality of cover plates and a fixed frame, the cover plates collectively surround the air guiding channel, and the fixed frame is connected to the cover plates One end and one end of the cover plates away from the fixed frame jointly surround the air inlet and outlet, and the fixed frame surrounds the air outlet. The servo device described in item 3 of the scope of patent application, wherein each of the cover plates and the plane where the air inlet is located at an acute angle, so that the area of the air inlet of the air hood is larger than the air hood The area of the air outlet. The servo device described in item 2 of the scope of patent application, wherein the wind deflector includes a main cover and at least one auxiliary cover, the at least one auxiliary cover is movably arranged on one side of the main cover, and The main cover and the at least one auxiliary cover jointly surround the air inlet, and the at least one auxiliary cover can move relative to the main cover to adjust the area of the air inlet. For the servo device described in item 5 of the scope of patent application, wherein the number of the at least one sub-cover is two, and the two sub-covers are respectively movably arranged on opposite sides of the main cover. For the servo device described in item 5 of the scope of patent application, the main cover includes a first side plate and two second side plates, the airflow generator is installed on the first side plate, and the two second side plates are respectively connected to the On opposite sides of the first side panel, the at least one auxiliary cover includes a third side panel and two fourth side panels. The two fourth side panels are respectively connected to opposite sides of the third side panel, and the third side panel covers part of the The first side plate, and the two fourth side plates respectively cover part of the two second side plates. For the servo device described in item 7 of the scope of patent application, the wind deflector further includes two first slide rail structures and two second slide rail structures, and the two first slide rail structures are respectively located on the two second side plates away from the One side of the first side plate, the two second slide rail structures are respectively located on a side of the two fourth side plates away from the third side plate, and the two second slide rail structures are respectively slidably disposed on the two first slide rails structure. For the servo device described in claim 7, wherein the wind deflector further includes a first slide rail structure and a second slide rail structure, the first slide rail structure is located on the first side plate, and the second slide rail structure The rail structure is located on the third side plate, and the second slide rail structure is slidably disposed on the first slide rail structure. For example, the servo device described in item 1 of the scope of patent application further includes at least one external connector, the card body has at least one connection port, and the at least one connection port of the card body penetrates the block Board, the air guide has an opening, the external connector is fixed to the opening of the air guide, and is electrically connected to the connection port. For example, the servo device described in item 10 of the scope of patent application further includes a cover that can be movably arranged on the opening of the wind deflector to cover or expose the external connector. For example, the servo device described in item 1 of the scope of the patent application further includes a plurality of coupling members, the wind deflector has a plurality of perforations, the at least one expansion card has a plurality of coupling holes, and the coupling members respectively pass through the Perforations are respectively combined with the combining holes of the at least one expansion card. For the servo device described in item 12 of the scope of patent application, each of these coupling parts is a screw, a rivet or a fastener.

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