Fan device

Abstract

The invention discloses a fan device suitable for being matched with an external electric connector. The fan device comprises a shell unit, a fan blade unit and a first electric connector. The first electric connector is suitable for being in separable butt joint with the external electric connector in any one of a first connection state and a second connection state so as to receive electric energy which can be used for driving the fan blade unit to rotate from the external electric connector; the relative direction of the first electric connector and the external electric connector in the first connection state is opposite to the relative direction of the first electric connector and the external electric connector in the second connection state. The first electric connector of the fan device can be separably butted with the external electric connector, so that the situation that the first electric connector and the external electric connector cannot be correctly connected due to the fact that the directions of the first electric connector and the external electric connector are opposite is avoided, and the fan device is more convenient to install and maintain.

Description

Technical Field

[0001] The present invention relates to a fan device, and in particular to a fan device suitable for heat dissipation. Background Art

[0002] Fans are often used as an important heat dissipation method in various motors and electronic devices. Taking personal computers as an example, fans can generate airflow to expel hot air inside the personal computer, so that the central processing unit (CPU) or graphics processing unit (GPU) can operate within a safe temperature range.

[0003] In the prior art, many fan devices use a set of exposed wires to connect a power connector (such as a common 4-pin connector or 3-pin connector) to a drive motor of the fan device. Furthermore, the user must connect the power connector to a connector on the motherboard to power the fan device.

[0004] However, the above-mentioned design of the prior art can actually lead to installation inconveniences. For example, if the wires are long, they can easily become entangled with the wiring of surrounding hardware during installation. If the wires are short, the fan unit's installation flexibility is limited or an extension cable is required. Furthermore, because the wires of the prior art are directly connected to the fan unit, if the exposed wires are damaged by pulling or friction, it will also cause maintenance inconvenience.

[0005] In view of this, how to improve the inconveniences of the existing technology has become the topic to be explored in this case. Summary of the Invention

[0006] An object of the present invention is to provide a fan device that helps to improve the inconveniences of the prior art.

[0007] The fan device of the present invention is adapted to be mated with an external electrical connector, and is characterized in that the fan device comprises a housing unit, a blade unit rotatably mounted on the housing unit, and a first electrical connector. The first electrical connector is adapted to detachably dock with the external electrical connector in either a first connection state or a second connection state, thereby receiving electrical energy from the external electrical connector that can be used to drive the blade unit to rotate. The relative direction between the first electrical connector and the external electrical connector in the first connection state is opposite to the relative direction in the second connection state.

[0008] In some embodiments of the fan device of the present invention, the housing unit includes a first side surface, a protrusion located on the first side surface, and a receiving groove formed on the protrusion, and the first electrical connector is located in the receiving groove.

[0009] In some embodiments of the fan device of the present invention, the fan device is also suitable for cooperating with another external electrical connector, and is characterized in that: the housing unit also includes a second side surface opposite to the first side surface, and a groove formed on the second side surface; the fan device also includes a second electrical connector electrically connected to the first electrical connector, wherein the second electrical connector is arranged in the groove and is suitable for docking with the other external electrical connector to output the electrical energy received by the first electrical connector to the other external electrical connector via the second electrical connector itself.

[0010] In some embodiments of the fan device of the present invention, it is characterized in that: the external electrical connector is another second electrical connector included in another fan device, and the another second electrical connector is located in another groove included in the other fan device; wherein, the shape of the protrusion matches the shape of the another groove, and the protrusion is suitable for being engaged in the another groove of the other fan device to fix the fan device and the other fan device to each other, and when the protrusion is engaged in the another groove of the other fan device, the first electrical connector is docked with the another second electrical connector of the other fan device.

[0011] In some embodiments of the fan device of the present invention, it is characterized in that: the protrusion has an outer peripheral surface, and the housing unit also includes a locking portion located on the outer peripheral surface of the protrusion, the shape of the locking portion matches the shape of a locking portion included in the other fan device and located in the other groove, and when the protrusion is locked in the other groove of the other fan device, the locking portion and the locking portion of the other fan device correspond to each other in position.

[0012] In some embodiments of the fan device of the present invention, the housing unit comprises two protrusions located on the first side surface, and the two protrusions are adapted to respectively engage in two grooves included in the other fan device.

[0013] In some embodiments of the fan device of the present invention, the other external electrical connector is another first electrical connector included in another fan device, and the other fan device further includes another protrusion and another accommodating groove formed on the other protrusion, and the other first electrical connector is located in the other accommodating groove; it is characterized in that: the shape of the groove matches the shape of the other protrusion, and the groove is suitable for the other protrusion of the other fan device to be engaged therein, and when the groove is engaged by the other protrusion of the other fan device, the second electrical connector is docked with the other first electrical connector of the other fan device.

[0014] In some embodiments of the fan device of the present invention, it is characterized in that: the housing unit also includes a clamping portion located in the groove, the shape of the clamping portion matches the shape of the clamping portion included in the other fan device and located on the other protrusion, and when the groove is clamped by the other protrusion of the other fan device, the clamping portion and the clamping portion of the other fan device correspond to each other in position.

[0015] In some embodiments of the fan device of the present invention, the housing unit comprises two grooves located on the second side surface, and the two grooves are adapted to respectively engage with two protrusions included in the other fan device.

[0016] The present invention provides the following advantages: the first electrical connector of the fan device can be detachably connected to the external electrical connector, thereby enhancing the convenience and flexibility of installation and maintenance of the fan device. Furthermore, the first electrical connector and the external electrical connector can be connected in two opposite directions, eliminating the possibility of incorrect connection due to the opposite directions, thereby further facilitating installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features and effects of the present invention will be more clearly seen in the following embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 is a fragmentary schematic diagram from a front side perspective illustrating an embodiment of a fan device of the present invention and a power transmission line suitable for use with the embodiment;

[0019] Figure 2 This is an incomplete three-dimensional schematic diagram showing two protrusions, two pairs of engaging portions, a receiving groove, and a first electrical connector included in the embodiment from a right front perspective;

[0020] Figure 3 This is an incomplete three-dimensional schematic diagram showing two grooves, two pairs of clamping portions, and a second electrical connector included in this embodiment from a left front perspective;

[0021] Figure 4 is a schematic diagram exemplarily showing a substrate, a first terminal block and a second terminal block included in the first electrical connector;

[0022] Figure 5 is a schematic diagram from a front side perspective, illustrating the embodiment and two other fan devices suitable for use in combination with the embodiment;

[0023] Figure 6is a schematic diagram from a front side perspective, illustrating the embodiment and the other two fan devices in combination with each other;

[0024] Figure 7 This is an incomplete top side view partial cross-sectional diagram, along Figure 5 VII-VII section line in FIG, showing that one of the protrusions, the first electrical connector, a groove of one of the other two fan devices, and a second electrical connector of the embodiment are aligned with each other;

[0025] Figure 8 This is an incomplete top side view partial cross-sectional diagram, along Figure 6 sectional line VIII-VIII in FIG, illustrating the embodiment and one of the other two fan devices combined with each other;

[0026] Figure 9 This is an incomplete top side view partial cross-sectional diagram, along Figure 5 IX-IX section line in FIG, illustrating that one of the grooves, the second electrical connector, a protrusion of the other of the two fan devices, and a first electrical connector of the embodiment are aligned with each other; and

[0027] Figure 10 This is an incomplete top side view partial cross-sectional diagram, along Figure 6 XX section line in FIG. 1 shows the embodiment and the other one of the two fan devices combined with each other. DETAILED DESCRIPTION

[0028] Before the present invention is described in detail, it should be noted that directional terms such as "upper", "lower", "left", "right", "front", "back", "top", and "bottom" in this patent specification are used to illustrate the relative positional relationship between the various hardware components in the embodiments of the present invention in conjunction with the drawings of this case, and are not intended to limit the direction of any hardware component of the present invention in an actual environment.

[0029] See Figure 1 One embodiment of the fan device 1 of the present invention is adapted to be coupled to an external electrical connector. Furthermore, in a first application scenario of this embodiment, the external electrical connector is a power connector 21 of a power transmission line 2 , and the power connector 21 conforms to a specific hardware interface specification.

[0030] See also Figure 1 、 Figure 2 and Figure 3The fan device 1 includes a housing unit 11, a fan unit 12 rotatably disposed on the housing unit 11, a driving motor 13 connected to the fan unit 12 and capable of driving the fan unit 12 to rotate, a first electrical connector 14 electrically connected to the driving motor 13, and a second electrical connector 15 electrically connected to the first electrical connector 14.

[0031] The housing unit 11 includes a first side surface 111 (shown in FIG. Figure 2 ), a second side surface 112 (shown in Figure 3 ), two protrusions 113 located on the first side surface 111, and two pairs of engaging portions 114 located on the two protrusions 113 (shown in FIG. Figure 2 ), a receiving groove 115 formed on one of the two protrusions 113, two grooves 116 formed on the second side surface 112, and two pairs of engaging portions 117 (shown in FIG. Figure 3 ). The first side surface 111 and the second side surface 112 are respectively oriented in two opposite directions. Figure 1 From the perspective presented, the first side surface 111 and the second side surface 112 are respectively facing a right direction relative to the fan device 1 and a left direction opposite to the right direction.

[0032] like Figure 2 As shown, the two protrusions 113 are arranged one above the other on the first side surface 111. Each protrusion 113 has an outer peripheral surface 118, and each pair of engaging portions 114 is formed on the outer peripheral surface 118 of the corresponding protrusion 113. More specifically, in this embodiment, each pair of engaging portions 114 is a pair of narrow engaging grooves that are recessed from the corresponding outer peripheral surface 118 and extend vertically along the first side surface 111. Furthermore, each pair of engaging portions 114 faces two opposite directions, for example, a front direction relative to the fan device 1 and a rear direction opposite to the front direction.

[0033] For ease of explanation, the two protrusions 113 are referred to herein as a protrusion 113A and a protrusion 113B arranged above the protrusion 113A. In this embodiment, the receiving groove 115 is formed on the protrusion 113A, and the opening of the receiving groove 115 is generally oriented in the same direction as the first side surface 111. Furthermore, the first electrical connector 14 is disposed on the first side surface 111 and located within the receiving groove 115. It protrudes away from the first side surface 111 but does not protrude beyond the opening of the receiving groove 115. Thus, the protrusion 113A can provide protection for the first electrical connector 14, preventing it from being damaged by external objects.

[0034] like Figure 3 As shown, the two grooves 116 are arranged one above the other on the second side surface 112, and the openings of the two grooves 116 are generally oriented in the same direction as the second side surface 112. Furthermore, in this embodiment, each pair of engaging portions 117 is a pair of outwardly protruding, elongated engaging blocks extending vertically along the second side surface 112. Furthermore, each pair of engaging portions 117 is opposed to each other within the corresponding groove 116 and faces the front and rear directions, respectively.

[0035] For ease of description, the two grooves 116 are referred to herein as groove 116A and groove 116B disposed above groove 116A. In this embodiment, the second electrical connector 15 is disposed within the groove 116A. Thus, the groove 116A provides protection for the second electrical connector 15, preventing it from being damaged by external objects.

[0036] In the present embodiment, the first electrical connector 14 is a connection socket (also called a "female head") belonging to the specific hardware interface specification. Therefore, the first electrical connector 14 is suitable for detachably docking with the power connector 21. On the other hand, the second electrical connector 15 is a power connector 21 (also called a "male head") belonging to the specific hardware interface specification. In other words, the structure of the second electrical connector 15 is substantially the same as that of the power connector 21. It is further explained that the first electrical connector 14 is electrically connected to the drive motor 13 and the second electrical connector 15 through a wire (not shown) provided inside the housing unit 11, and the first electrical connector 14 is used to receive electrical energy from the outside (for example, electrical energy from the power connector 21) and provide the received electrical energy to the drive motor 13 and the second electrical connector 15 at the same time. In this way, the drive motor 13 can utilize all or part of the electrical energy provided by the first electrical connector 14 to drive the fan blade unit 12 to rotate, and the second electrical connector 15 can output part of the electrical energy provided by the first electrical connector 14 to other external electrical connectors when docked with other external electrical connectors (the specific details will be described later).

[0037] It should be noted that the housing unit 11 also includes a first mounting hole (not shown) communicating with the receiving groove 115 for receiving the first electrical connector 14, and a second mounting hole communicating with the groove 116A for receiving the second electrical connector 15. Furthermore, the first electrical connector 14 is electrically connected to the wires within the housing unit 11 through the first mounting hole, while the second electrical connector 15 is electrically connected to the wires within the housing unit 11 through the second mounting hole.

[0038] See Figure 4The first electrical connector 14 includes a substrate 140, a first terminal row 141 disposed on one side of the substrate 140, and a second terminal row 142 disposed on the other side of the substrate 140. In this embodiment, the first terminal row 141 and the second terminal row 142 are aligned front-to-back and left-to-right on the substrate 140. The first terminal row 141 has a plurality of first connecting terminals A1 to A12 arranged in a straight line and equidistantly, while the second terminal row 142 has a plurality of second connecting terminals B1 to B12 arranged in a straight line and equidistantly. In one implementation of this embodiment, the pin positions of the first connecting terminals A1 to A12 and the second connecting terminals B1 to B12 are defined as shown in Table 1 below.

[0039] [Table 1]

[0040]

[0041] Referring to Table 1 above, the first connection terminal A1, the first connection terminal A12, the second connection terminal B1, and the second connection terminal B12 each serve as a ground connection terminal. The first connection terminal A2, the first connection terminal A3, the first connection terminal A10, the first connection terminal A11, the second connection terminal B2, the second connection terminal B3, the second connection terminal B10, and the second connection terminal B11 each serve as a reserved unconnected connection terminal. The first connection terminal A4, the first connection terminal A9, the second connection terminal B4, and the second connection terminal B9 each serve as a main power connection terminal, each of which is used to transmit DC power with a rated voltage of 12 volts. The first connection terminal A5 and the second connection terminal B8 each serve as an auxiliary power connection terminal, each of which is used to transmit DC power with a rated voltage of 5 volts. The first connection terminal A6 and the second connection terminal B7 each serve as a differential signal negative connection terminal. The first connection terminal A7 and the second connection terminal B6 each serve as a differential signal positive connection terminal. The first connection terminal A8 and the second connection terminal B5 each serve as a direction confirmation terminal, each direction confirmation terminal being used to confirm the direction of signal transmission between the first electrical connector 14 and an external electrical connector (e.g., the power connector 21).

[0042] In particular, see Figure 4 With reference to Table 1 above, in addition to the alignment of the positions of the first terminal row 141 and the second terminal row 142 on the substrate 140, the order of the pin positions of the first connecting terminals A1 to A12 is equivalent to the result of flipping the order of the pin positions of the second connecting terminals B1 to B12 left and right (i.e., left-right mapping). Figure 1The first electrical connector 14 allows the power connector 21 to be connected to the first electrical connector 14 in either a first connection state or a second connection state. Moreover, the relative direction between the first electrical connector 14 and the power connector 21 in the first connection state is opposite to the relative direction between the first electrical connector 14 and the power connector 21 in the second connection state. More specifically, Figure 1 The figure shows the power connector 21 docking with the first electrical connector 14 in the first connection state, while the second connection state refers to the state in which the power connector 21 is rotated 180° with respect to the first connection state, with the direction of the first electrical connector 14 protruding as the axis, and then docked with the first electrical connector 14. In other words, when the power connector 21 is docked with the first electrical connector 14 in the second connection state, the direction of the power transmission line 2 will be the same as that in the first connection state. Figure 1 In this way, the first electrical connector 14 and the power connector 21 can be connected to each other in two opposite directions, and will not be unable to connect correctly because the two directions are opposite to each other, so it is more convenient to install.

[0043] The first electrical connector 14 of the fan device 1 can be connected to an external electrical connector (eg Figure 1 The power connector 21 in the fan device 1 can be detachably connected to each other. Taking the power connector 21 of the power transmission line 2 as an example, the user can choose to first install the fan device 1 separately to a motor or electronic device that needs heat dissipation (such as a personal computer), and then connect the power connector 21 to the first electrical connector 14 of the fan device 1, thereby preventing the power transmission line 2 from getting entangled with other surrounding hardware during the installation of the fan device 1. Moreover, even if the power transmission line 2 is damaged, the user only needs to replace the power transmission line 2 without having to disassemble the fan device 1. In addition, the user can freely choose a power transmission line 2 of appropriate length to power the fan device 1. Therefore, the fan device 1 has better convenience and flexibility in installation and maintenance.

[0044] See also Figure 1 、 Figure 5 and Figure 6 , the second application scenario of this embodiment is described below.

[0045] Unlike the first application scenario, the fan device 1 in the second application scenario is mated with two additional external electrical connectors. More specifically, the two additional external electrical connectors belong to a fan device 1 ′ and a fan device 1 ″ that are identical to the fan device 1 .

[0046] First of all, Figure 5The fan device 1 , the fan device 1 ′, and the fan device 1 ″ are shown in a state where they are aligned with each other but have not yet been assembled with each other. Figure 6 What is presented is a situation where the fan device 1, the fan device 1 ′, and the fan device 1 ″ are combined with each other. Figure 7 It is along Figure 5 VII-VII cutting line shown in FIG, which presents a portion of each of the fan device 1 and the fan device 1 ′ from a top side perspective. Figure 8 It is along Figure 6 , which is a result of interception along a VIII-VIII section line shown in FIG. 1 , presents a portion of each of the fan device 1 and the fan device 1 ′ from a top side perspective. Figure 9 It is along Figure 5 The result of the section taken along the IX-IX cutting line shown in FIG. 1 is a top-side perspective showing a portion of each of the fan device 1 and the fan device 1 ″. Figure 10 It is along Figure 6 The result of interception along the XX section line shown in FIG. 1 is a top side perspective showing a portion of each of the fan device 1 and the fan device 1 ″.

[0047] See Figure 5 And refer to Figure 7 、 Figure 8 The fan device 1' comprises a housing unit 11' and a second electrical connector 15'. The housing unit 11' comprises a groove 116A', a groove 116B', and two pairs of engaging portions 117' respectively located in the groove 116A' and the groove 116B'. Figure 7 、 Figure 8 The two pairs of the clamping portions 117' are shown as being located in the groove 116A', while the pair of the clamping portions 117' located in the groove 116B' are not specifically shown. Figure 5 As shown, the second electrical connector 15 ′ is located in the groove 116A′.

[0048] See Figure 5 And refer to Figure 9 、 Figure 10 The fan device 1" includes a housing unit 11" and a first electrical connector 14". The housing unit 11 includes a protrusion 113A", a protrusion 113B", a receiving groove 115" formed on the protrusion 113A", and two pairs of engaging portions 114" formed on the protrusion 113A" and the protrusion 113B". Figure 9 、 Figure 10 The pair of engaging portions 114" located on the protrusion 113A" is shown in FIG. Figure 5As shown, the first electrical connector 14 ″ is located in the receiving groove 115 ″.

[0049] Since the fan device 1' and the fan device 1" are substantially identical to the fan device 1 of this embodiment, the structural details of the fan device 1' and the fan device 1" will not be described in detail. Figure 5 As shown, the other two external electrical connectors are the second electrical connector 15 ′ of the fan device 1 ′ and the first electrical connector 14 ″ of the fan device 1 ″.

[0050] The following first describes the combination of the fan device 1 and the fan device 1 ′.

[0051] by Figure 5 From a perspective of FIG, the fan device 1' is suitable for being assembled with the fan device 1 from the right side of the fan device 1. The shapes of the protrusions 113A and 113B of the fan device 1 respectively match the shapes of the grooves 116A' and 116B' of the fan device 1'. Furthermore, the protrusions 113A and 113B of the fan device 1 are suitable for respectively engaging with the grooves 116A' and 116B' of the fan device 1', thereby securing the fan device 1' to the fan device 1.

[0052] See Figure 7 And refer to Figure 5 , Figure 7 The figure shows a situation where the protrusion 113A of the fan device 1 and the groove 116A' of the fan device 1' are aligned with each other but have not yet been assembled with each other. It is worth noting that the shapes of the two engaging portions 114 on the protrusion 113A respectively match the shapes of the two engaging portions 117' in the groove 116A'.

[0053] See Figure 8 And refer to Figure 6 , Figure 8 The figure shows the protrusion 113A of the fan device 1 engaged with the groove 116' of the fan device 1'. It is noteworthy that when the protrusion 113A of the fan device 1 is engaged with the groove 116' of the fan device 1', the pair of engaging portions 114 on the protrusion 113A and the pair of engaging portions 117' within the groove 116' correspond to each other and engage with each other, thereby strengthening the fixing effect of the fan device 1' to the fan device 1. On the other hand, when the protrusion 113A of the fan device 1 is engaged with the groove 116' of the fan device 1', the first electrical connector 14 of the fan device 1 and the second electrical connector 15' of the fan device 1' also mate with each other, so that electrical energy can be transmitted between the first electrical connector 14 and the second electrical connector 15'.

[0054] It should be noted that the manner in which the protrusion 113B of the fan device 1 cooperates with the groove 116B' of the fan device 1' is the same as the manner in which the protrusion 113A cooperates with the groove 116A', so it is not specifically shown in the drawings and will not be repeated here.

[0055] The following describes the combination of the fan device 1 and the fan device 1 ″.

[0056] by Figure 5 From the perspective of FIG, the fan device 1″ is suitable for being combined with the fan device 1 from the left side of the fan device 1. The shapes of the groove 116A and the groove 116B of the fan device 1 respectively match the shapes of the protrusion 113A″ and the protrusion 113B″ of the fan device 1″. Moreover, the groove 116A and the groove 116B of the fan device 1 are suitable for respectively allowing the protrusion 113A″ and the protrusion 113B″ of the fan device 1″ to be engaged therein, so that the fan device 1″ and the fan device 1 are fixed to each other.

[0057] See Figure 9 And refer to Figure 5 , Figure 9 The figure shows a situation where the groove 116A of the fan device 1 and the protrusion 113A" of the fan device 1" are aligned with each other but have not yet been combined with each other. It is worth noting that the shapes of the two locking portions 117 in the groove 116A are respectively matched with the shapes of the two locking portions 114" on the protrusion 113A".

[0058] See Figure 10 And refer to Figure 6 , Figure 10 The figure shows a situation in which the groove 116A of the fan device 1 is engaged with the protrusion 113A" of the fan device 1". It is worth noting that when the groove 116A of the fan device 1 is engaged with the protrusion 113A" of the fan device 1", the pair of engaging portions 117 in the groove 116A and the pair of engaging portions 114" on the protrusion 113A" correspond to each other in position and engage with each other, thereby strengthening the effect of fixing the fan device 1" and the fan device 1 to each other. On the other hand, when the groove 116A of the fan device 1 is engaged with the protrusion 113A" of the fan device 1", the second electrical connector 15 of the fan device 1 and the first electrical connector 14" of the fan device 1" are also docked with each other, so that the second electrical connector 15 and the first electrical connector 14" can transmit electrical energy to each other.

[0059] See Figure 6 And refer to Figure 5By means of the fan device 1 and the fan device 1', the fan device 1" Figure 6 As shown, the first electrical connector 14 of the fan device 1 receives electrical energy, so that the fan blade unit can be driven to rotate and the second electrical connector 15' has electrical energy to output, and the first electrical connector 14 of the fan device 1 receives electrical energy from the second electrical connector 15' of the fan device 1', and provides a part of the received electrical energy to the drive motor 13 and another part of the electrical energy to the second electrical connector 15. Figure 6 In the case shown, the second electrical connector 15 outputs the electrical energy obtained from the first electrical connector 14 to the first electrical connector 14" of the fan device 1", so that the fan device 1" obtains electrical energy that can be used to drive the fan blade unit to rotate. Figure 6 In the illustrated case, the fan device 1 , the fan device 1 ′, and the fan device 1 ″ will operate together. Based on the above, the user can connect the fan device 1 of this embodiment with other fan devices in series according to their needs. Therefore, the fan device 1 of this embodiment has good expandability.

[0060] It should be noted that, in different embodiments, each engaging portion 114 of the fan device 1 may be a locking block, and each engaging portion 117 may be a engaging slot. Therefore, the specific configurations of the engaging portions 114 and engaging portions 117 are not limited to this embodiment. Furthermore, the specific hardware interface specifications of the first electrical connector 14 and the second electrical connector 15 are custom-defined in this embodiment. However, in other embodiments, the specific hardware interface specifications may also utilize existing universal specifications, such as, but not limited to, USB Type-C.

[0061] In summary, the first electrical connector 14 of the fan device 1 can be detachably connected to an external electrical connector. This provides greater convenience and flexibility in installation and maintenance of the fan device 1. Furthermore, the fan device 1 can be serially connected with other fan devices, providing excellent expandability, thereby effectively achieving the purpose of the present invention.

[0062] The above descriptions are merely embodiments of the present invention and should not be used to limit the scope of the present invention. In other words, any simple equivalent changes and modifications made according to the claims and description of the present invention still fall within the scope of the present invention.

Claims

1. A fan device adapted to cooperate with an external electrical connector, characterized in that: The fan device comprises: Shell element; a fan blade unit rotatably disposed on the housing unit; and A first electrical connector is adapted to be detachably docked with the external electrical connector in either a first connection state or a second connection state to receive electrical energy from the external electrical connector that can be used to drive the fan blade unit to rotate, wherein the relative direction between the first electrical connector and the external electrical connector in the first connection state is opposite to the relative direction in the second connection state.

2. The fan device according to claim 1, wherein: The housing unit includes a first side surface, a protrusion located on the first side surface, and a receiving groove formed on the protrusion, and the first electrical connector is located in the receiving groove.

3. The fan device according to claim 2, further adapted to cooperate with another external electrical connector, characterized in that: The housing unit further includes a second side surface opposite to the first side surface, and a groove formed on the second side surface; The fan device also includes a second electrical connector electrically connected to the first electrical connector, wherein the second electrical connector is arranged in the groove and is suitable for docking with the other external electrical connector to output the electrical energy received by the first electrical connector to the other external electrical connector via the second electrical connector itself.

4. The fan device according to claim 3, wherein: The external electrical connector is another second electrical connector included in another fan device, and the another second electrical connector is located in another groove included in the other fan device; wherein, the shape of the protrusion matches the shape of the another groove, and the protrusion is suitable for being engaged in the another groove of the other fan device to fix the fan device and the other fan device to each other, and when the protrusion is engaged in the another groove of the other fan device, the first electrical connector is docked with the another second electrical connector of the other fan device.

5. The fan device according to claim 4, wherein: The protrusion has an outer peripheral surface, and the housing unit also includes a locking portion located on the outer peripheral surface of the protrusion, the shape of the locking portion matches the shape of a locking portion included in the other fan device and located in the other groove, and when the protrusion is locked in the other groove of the other fan device, the locking portion and the locking portion of the other fan device correspond to each other in position.

6. The fan device according to claim 5, wherein: The housing unit includes two protrusions located on the first side surface, and the two protrusions are suitable for respectively engaging in two grooves included in the other fan device.

7. The fan device according to claim 3, wherein the other external electrical connector is another first electrical connector included in another fan device, the other fan device further comprising another protrusion and another receiving groove formed on the other protrusion, and the other first electrical connector is located in the other receiving groove; characterized in that: The shape of the groove matches the shape of the other protrusion, and the groove is suitable for the other protrusion of the other fan device to be engaged therein, and when the other protrusion of the other fan device is engaged therein, the second electrical connector is docked with the other first electrical connector of the other fan device.

8. The fan device according to claim 7, wherein: The housing unit also includes a snap-fitting portion located in the groove, the shape of which matches the shape of a snap-fitting portion included in the other fan device and located on the other protrusion, and when the groove is snapped into place by the other protrusion of the other fan device, the snap-fitting portion and the snap-fitting portion of the other fan device correspond to each other in position.

9. The fan device according to claim 8, wherein: The housing unit includes two grooves located on the second side surface, and the two grooves are suitable for respectively engaging two protrusions included in the other fan device.

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