Shell structure and driving equipment

Abstract

The utility model relates to a shell structure and driving equipment, the shell structure comprises a shell, a conductive port and a water retaining assembly, and an accommodating space is formed in the shell; the conductive port is used for forming a channel for electrically connecting elements inside and outside the shell and is formed in at least one wall of the shell; the water retaining assembly is arranged on the wall, where the conductive port is formed, of the shell and used for preventing water from entering the conductive port, and the water retaining assembly comprises a first water retaining piece and a second water retaining piece which are arranged in a spaced mode. Water is blocked and guided through the arrangement of the first water blocking piece and the second water blocking piece, water can be prevented from entering the conductive port and the interior of the shell, normal operation and use safety of electric appliance components at the conductive port and in the shell are guaranteed, and the influence of external water on the performance and the service life of the electric appliance components at the conductive port and in the shell is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of electric drive technology, and in particular to a housing structure and a drive device. Background Art

[0002] Electric drive is a drive system that uses motors as power sources. Motors refer to electromagnetic devices that convert or transmit electrical energy according to the law of electromagnetic induction. Their main function is to generate driving torque, thereby providing driving force for electrical appliances or various mechanical devices. Motors are relatively commonly used drive devices. In industrial production, motors are the key to ensuring the normal operation of the production line where their drive devices are located.

[0003] In the related art, the motor is provided with interfaces for connecting power, control signals, encoders, etc., and the motor driving force can be controlled through the connection at the interface. In order to ensure the safety and normal operation of each circuit at the motor interface and each electrical component inside the motor, the motor needs to be waterproofed to prevent water from dripping into the motor and the motor wiring port, affecting the performance and life of the motor.

[0004] Therefore, how to prevent external moisture from dripping into the motor and the wiring port is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] Based on this, it is necessary to provide a housing structure and a driving device to solve the problem of how to prevent moisture from dripping into the motor and the wiring port.

[0006] The first aspect of the present application provides a shell structure, which includes a shell, a conductive port and a water-blocking assembly, wherein the shell forms a accommodating space; the conductive port is used to form a channel for electrically connecting components inside and outside the shell, and the conductive port is formed on at least one wall of the shell; the water-blocking assembly is arranged on the wall of the shell where the conductive port is formed, and is used to prevent water from entering the conductive port, and the water-blocking assembly includes a first water-blocking member and a second water-blocking member arranged at intervals.

[0007] In one of the embodiments, the extension directions of the first water retaining member and the second water retaining member respectively form a non-zero first angle and a second angle with the gravity direction.

[0008] In one embodiment, the first angle and the second angle are both in the range of 20°-60°.

[0009] In one embodiment, the first water stopper and the second water stopper are parallel to each other.

[0010] In one embodiment, the wall extends in a first direction perpendicular to the gravity direction, and in the first direction, at least one of a size of the first water stopper and a size of the second water stopper is larger than a size of the conductive port.

[0011] In one embodiment, the second water stopper is arranged between the first water stopper and the conductive port in the direction of gravity. In the first direction, the size of the first water stopper is larger than the size of the conductive port; the size of the second water stopper is larger than the size of the conductive port and smaller than the size of the first water stopper.

[0012] In one of the embodiments, a waterproof member protruding toward the outside of the accommodating space is provided at an edge of the shell near the conductive opening.

[0013] In one embodiment, the first water retaining member and / or the second water retaining member is connected to the waterproof member.

[0014] In one embodiment, a water guiding groove is provided on the water guiding surface of at least one of the first water retaining member and the second water retaining member; and / or the water guiding surface of at least one of the first water retaining member and the second water retaining member is at least partially curved; and / or the maximum height of the protrusions on the wall of the first water retaining member and the second water retaining member is 2-10mm; and / or the height of the protrusions on the wall of at least one of the first water retaining member and the second water retaining member gradually decreases at the end along the direction of gravity.

[0015] A second aspect of the present application provides a driving device, which includes a shell structure in any of the above embodiments, a driving member accommodated in a receiving space, and an electrical connector connected to the driving member, wherein the electrical connector is arranged in the receiving space and at a position corresponding to the conductive port.

[0016] In one embodiment, the driving member has a rotating driving shaft, the rotating driving shaft has a rotating axis, and the housing is provided with a conductive port and an arm of the water retaining assembly which is a circumferential wall surrounding the rotating axis.

[0017] In one embodiment, one end of the shell along the rotation axis is open and forms an opening that passes through the conductive port. The shell is provided with a waterproof member protruding toward the outside of the accommodating space at the edge near the opening and the conductive port, and the first water retaining member and / or the second water retaining member are connected to the waterproof member.

[0018] In one embodiment, the conductive opening is located on both sides of the vertical plane where the rotation axis is located, and two groups of water retaining components are provided. The two groups of water retaining components are respectively located on the upper side of the conductive openings on both sides in the direction of gravity.

[0019] Normally, when water drops fall on the shell, it will flow along the shell and enter the shell through the conductive port. In the above shell structure, the first water retaining member and the second water retaining member are provided to block and guide water, thereby preventing water from entering the conductive port and the inside of the shell, thereby ensuring the normal operation and safe use of the electrical components at the conductive port and inside the shell, and effectively reducing the impact of external water on the performance and life of the electrical components at the conductive port and inside the shell. In addition, if water overflows from the first water retaining member, the water overflowing from the first water retaining member can be blocked and guided by the second water retaining member, thereby achieving a double-layer water-blocking protection effect, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of a driving device in an embodiment of the present application.

[0021] Figure 2 It is a cross-sectional view of a driving device in one embodiment of the present application.

[0022] Figure 3 Schematic diagram of a housing structure in one embodiment of the present application.

[0023] Figure 4 This is a schematic diagram of two sets of water retaining components on the shell in one embodiment of the present application.

[0024] Figure 5 It is a side view of the housing structure in one embodiment of the present application.

[0025] Figure 6 It is a cross-sectional view of the housing structure in one embodiment of the present application.

[0026] Among them, the figure numbers are: driving device 1, shell structure 10, shell 11, wall 111, conductive port 12, water retaining assembly 13, first water retaining part 131, second water retaining part 132, waterproof part 14, opening 15, accommodating space B, first direction D, water guiding surface E, driving part 20, rotating driving shaft 21, rotation axis A, electrical connector 30. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

[0035] refer to Figure 1 As shown, an embodiment of the present application provides a driving device 1, which is used to achieve force transmission and then generate driving force to drive an object to move. The driving device 1 includes but is not limited to a motor.

[0036] refer to Figure 2 As shown, the driving device 1 includes a shell structure 10, a driving member 20 and an electrical connector 30. The shell structure 10 is used to protect the internal components of the shell from external interference. Of course, the shell structure 10 is also used to provide layout space and support force for the internal components of the shell. An accommodating space B is formed inside the shell structure 10, and the driving member 20 is accommodated in the accommodating space B. The output end of the driving member 20 is connected to other external devices, and the driving member 20 is used to provide driving force for other external devices. The electrical connector 30 is accommodated in the accommodating space B, and the electrical connector 30 is electrically connected to the driving member 20. The electrical connector 30 is also connected to an external electrical element, and the electrical connector 30 is used to control the start and stop of the driving member 20 or control the driving member 20 to operate with preset parameters.

[0037] refer to Figure 3As shown, the housing structure 10 includes a housing 11, a conductive port 12 and a water retaining assembly 13. The aforementioned accommodation space B is formed inside the housing 11, that is, the driving member 20 and the electrical connector 30 are accommodated in the housing 11. The conductive port 12 is formed on at least one wall 111 of the housing 11, and the conductive port 12 is used to form a channel for electrically connecting the internal and external components of the housing 11, so that the internal components of the housing 11 can establish a circuit connection with the external components of the housing 11 through the conductive port 12, so that the circuit can be powered on and off or control the current, thereby ensuring the operation of the driving member 20; in the embodiment disclosed in the present application, the internal components of the housing 11 refer to the electrical connector 30, and the external components of the housing 11 refer to the power supply device. Of course, in other embodiments, the internal components of the housing 11 and the external components of the housing 11 can also refer to other electrical components; preferably, in order to facilitate the connection of the electrical connector 30 with the external components, the electrical connector 30 is arranged in the accommodation space B at a position corresponding to the conductive port 12. The water retaining assembly 13 is arranged on the wall 111 of the shell 11 where the conductive port 12 is formed. The water retaining assembly 13 is used to prevent water from entering the conductive port 12 to prevent water from entering the conductive port 12 and causing leakage to the conductive port 12, the electrical connector 30 and the electrical components inside the shell 11.

[0038] The driving member 20 has a rotating driving shaft 21, and the rotating driving shaft 21 has a rotation axis A. The shell 11 is provided with a conductive port 12 and a wall 111 of a water retaining assembly 13, which is a circumferential wall around the rotation axis A. The conductive port 12 and the water retaining assembly 13 are spaced apart, and it can be understood that the water retaining assembly 13 will not block / interfere with the connection of the electrical components at the conductive port 12. Furthermore, the conductive port 12 is a notch formed on the wall 111 of the shell 11 to communicate with the interior of the accommodating space B, and the shape of the conductive port 12 is not limited; the water retaining assembly 13 and the shell 11 can be separately molded and then connected together, and the water retaining assembly 13 and the shell 11 can also be integrally molded. Preferably, the water retaining assembly 13 and the shell 11 can be integrally molded by a set of injection molds, which can save additional molds and help reduce manufacturing time and reduce manufacturing costs.

[0039] Furthermore, combined with Figure 3-Figure 5 As shown, the water retaining assembly 13 is located on the upper side of the conductive port 12 in the direction of gravity. When water drops onto the housing 11, the water will flow downward along the housing 11 under the action of gravity. By arranging the water retaining assembly 13 on the upper side of the conductive port 12 in the direction of gravity, water can be blocked before entering the conductive port 12, thereby preventing water from entering the conductive port 12 and playing a role in waterproofing the conductive port 12. The arrangement of the water retaining assembly 13 on the upper side of the conductive port 12 in the direction of gravity is described below.

[0040] In the embodiment disclosed in the present application, there is one conductive port 12, which is located at the middle position at the bottom of the shell 11, that is, it is located at both sides of the vertical plane where the rotation axis A is located; there are two groups of water retaining components 13, which are respectively located on the upper side of the conductive ports 12 on both sides in the direction of gravity, that is, they are respectively located on both sides of the vertical plane where the rotation axis A is located. In this embodiment, taking the vertical plane where the rotation axis A is located as a reference, the outer surface of the circumferential wall of the shell 11 surrounding the rotation axis A on one side of the vertical plane is called the first outer side wall, and the outer surface on the other side of the vertical plane is called the second outer side wall; when water drips onto the shell 11 from directly above, the water will be divided and flow downward along the first outer side wall and the second outer side wall of the shell 11 respectively; the water retaining components 13 on both sides can prevent water from entering the conductive port 12 at the middle position at the bottom.

[0041] In other embodiments, two conductive ports 12 are provided, and the two conductive ports 12 are respectively located on both sides of the vertical plane where the rotation axis A is located. In this embodiment, the number of water retaining components 13 is the same as that of the conductive ports 12, that is, two groups of water retaining components 13 are provided, and the two groups of water retaining components 13 are respectively located on the upper side of the conductive ports 12 on both sides in the direction of gravity. The two groups of water retaining components 13 and the two conductive ports 12 are provided in a one-to-one correspondence, and each plays a waterproof role. The first group of water retaining components 13 can prevent water from entering the first conductive port 12, and the second group of water retaining components 13 can prevent water from entering the second conductive port 12.

[0042] In other embodiments, there are multiple conductive ports 12, and correspondingly, there are multiple groups of water retaining components 13, and the number is the same as the number of conductive ports 12, for example, there are three conductive ports 12 and three groups of water retaining components 13, there are four conductive ports 12 and four groups of water retaining components 13, etc. The multiple groups of water retaining components 13 are respectively located on the upper side of the multiple conductive ports 12 in the direction of gravity, and the multiple groups of water retaining components 13 each play a waterproof role, even if water drops from different directions / positions fall on the housing 11, under the action of the multiple groups of water retaining components 13, water will not enter any conductive port 12.

[0043] In other embodiments, a conductive port 12 may be provided, and the conductive port 12 may be located at any position on the circumferential wall of the shell 11 around the rotation axis A (except the middle position at the bottom of the shell 11). In this embodiment, the water retaining assembly 13 may be provided as a group, and a group of water retaining assemblies 13 is located on the upper side of the conductive port 12 in the direction of gravity, so as to prevent water from entering the conductive port 12.

[0044] The water retaining assembly 13 is described below. The water retaining assembly 13 includes a first water retaining member 131 and a second water retaining member 132 that are spaced apart. The first water retaining member 131 and the second water retaining member 132 are disposed on a wall 111 of the housing 11 on which the conductive port 12 is formed. The first water retaining member 131 and the second water retaining member 132 have a certain extended length, height and thickness. The first water retaining member 131 and the second water retaining member 132 are used to prevent water from entering the conductive port 12. On the one hand, when water flows along the housing 11 to the first water retaining member 131 and the second water retaining member 132, the first water retaining member 131 and the second water retaining member 132 can block the water to prevent the water from continuing to flow along the housing 11; on the other hand, the first water retaining member 131 and the second water retaining member 132 can guide the water to a position where the water will not contact the conductive port 12, and can also avoid water accumulation on the housing 11. The first water retaining member 131 and the second water retaining member 132 are used to block and guide water, thereby preventing water from entering the conductive port 12 and the interior of the shell 11, thereby ensuring the normal operation and safe use of the electrical components at the conductive port 12 and the interior of the shell 11, and effectively reducing the impact of external water on the performance and life of the electrical components at the conductive port 12 and the interior of the shell 11.

[0045] For the first water stopper 131 and the second water stopper 132, one of the water stops is arranged between the other water stopper and the conductive port 12 in the direction of gravity. Specifically, in the embodiment disclosed in the present application, the second water stopper 132 is arranged between the first water stopper 131 and the conductive port 12 in the direction of gravity. When water flows along the shell 11 to the first water retaining member 131, the water is blocked by the first water retaining member 131. In this process, whether the second water retaining member 132 blocks the water depends on the amount of water. For example, when the amount of water is small, the water will not jump over / overflow the first water retaining member 131. In this case, only the first water retaining member 131 is needed to block the water. When the amount of water is large, the first water retaining member 131 can only block part of the water, and the other part of the water will jump over / overflow the first water retaining member 131. At this time, the water that jumps over / overflows the first water retaining member 131 is blocked by the second water retaining member 132. That is, in this case, the first water retaining member 131 and the second water retaining member 132 simultaneously play the role of blocking water. The first water retaining member 131 and the second water retaining member 132 can achieve a double-layer water-blocking protection effect, which is highly practical.

[0046] like Figure 5, the extension directions of the first water retaining member 131 and the second water retaining member 132 respectively form a non-zero first angle C1 and a second angle C2 with the gravity direction, so that water can flow along the first water retaining member 131 and the second water retaining member 132 to other places, and prevent water from entering the conductive port 12. Further, the range of the first angle C1 and the second angle C2 are both 20°-60°. Preferably, the first angle C1 and the second angle C2 are both set to 20° or close to 20°. For example, the first angle C1 can be set to 25°, 30°, etc. when it is close to 20°, and the second angle C2 can be set to 23°, 28°, etc. when it is close to 20°. The closer the first angle C1 and the second angle C2 are to 20°, the more conducive it is to increase the flow rate of water, so that water can flow away in a shorter time, effectively improving the diversion effect of the first water retaining member 131 and the second water retaining member 132. Preferably, the first water retaining member 131 and the second water retaining member 132 are arranged parallel to each other.

[0047] The wall 111 of the housing 11 extends along a first direction D perpendicular to the direction of gravity. In the embodiments disclosed in the present application, in the first direction D, the size L1 of the first water retaining member 131 is larger than the size L2 of the conductive port 12, so that the first water retaining member 131 can cover the conductive port 12 in the direction of gravity, so that water can only flow to the area outside the conductive port 12, and no water will flow into the area where the conductive port 12 is located, thereby ensuring the normal operation and safe use of the conductive port 12 and the electrical components inside the housing 11. In some embodiments, in the first direction D, the size L2 of the second water retaining member 131 is larger than the size L2 of the conductive port 12; or in the first direction D, the size L1 of the first water retaining member 131 and the size L3 of the second water retaining member are both larger than the size L2 of the conductive port 12, so that at least one of the first water retaining member 131 and the second water retaining member 132 covers the conductive port 12 in the direction of gravity.

[0048] In other embodiments, in the first direction D, the size L1 of the first water retaining member 131 may be larger than the size L2 of the conductive port 12; the size L3 of the second water retaining member 132 may be larger than the size L2 of the conductive port 12, and smaller than the size L1 of the first water retaining member 131. Such a setting has a better water-blocking effect and can play a role in double protection of the conductive port 12.

[0049] In the embodiment disclosed in the present application, L1 is the distance between the inner side of the waterproof member 14 (the waterproof member 14 will be described below) and the end point of the upper edge of the first water retaining member 131; Figure 5 The middle dotted line X represents the wall thickness, L2 is the distance between the inner side of the waterproof component 14 and the intersection of the dotted line X and the outer wall; L3 is the distance between the inner side of the waterproof component 14 and the end point of the upper edge of the second water retaining component 132.

[0050] The edge of the housing 11 near the conductive port 12 is provided with a waterproof member 14 protruding toward the outside of the accommodation space, and the waterproof member 14 is used to further block water after the first water blocking member 131 and the second water blocking member 132. If water jumps over the first water blocking member 131 and the second water blocking member 132 and flows along the housing 11 toward the conductive port 12, the waterproof member 14 can prevent water from entering the conductive port 12. The first water blocking member 131, the second water blocking member 132 and the waterproof member 14 can block the water on the housing 11 together, and can play a role in multiple protection of the conductive port 12.

[0051] refer to Figure 6 As shown, in the embodiment disclosed in the present application, one end of the shell 11 along the rotation axis A is open and forms an opening 15 that penetrates the conductive port 12, that is, no end surface is formed at this end, and the edges of the shell 11 near the opening 15 and the conductive port 12 are provided with a waterproof member 14 protruding toward the outside B of the accommodating space, and the waterproof member 14 can prevent water from entering the conductive port 12 and the opening 15.

[0052] In some embodiments, the first water retaining member 131 and / or the second water retaining member 132 are connected to the waterproof member 14. Specifically, in the embodiments disclosed in the present application, the first water retaining member 131 and the second water retaining member 132 both include a first end connected to the waterproof member 14 and extend to the end along the direction of gravity.

[0053] In other embodiments, the first water retaining member 131 and the second water retaining member 132 may not be connected to the waterproof member 14 , as long as they can prevent water from entering the conductive port 12 .

[0054] In some embodiments, a water guide groove is provided on the water guide surface E of at least one of the first water retaining member 131 and the second water retaining member 132 , and the water guide groove is used to guide water, which is beneficial to improving the water retaining effect.

[0055] In some embodiments, the water guiding surface E of at least one of the first water retaining member 131 and the second water retaining member 132 is at least partially a curved surface, and the design of the curved surface can adjust the flow trend of water as needed.

[0056] In some embodiments, the maximum height of the first water retaining member 131 and the second water retaining member 132 protruding from the wall 111 is 2-10 mm. In the actual production process, the appropriate height can be selected according to the needs. Since the multi-layer water retaining member is set up, the height of each layer of the water retaining member can be reduced compared to the single-layer water retaining member, thereby reducing the overall volume of the motor, while also avoiding the breakage and deformation caused by the excessive height of the water retaining member, and facilitating mold injection; in addition, such a height setting can ensure the water barrier effect on the one hand, and on the other hand, it can also be used as a reinforcing rib of the shell 11, which can strengthen the overall structural strength of the shell 11, thereby enhancing the protection of the internal components of the shell 11.

[0057] In some embodiments, the height of at least one of the first water retaining member 131 and the second water retaining member 132 protruding on the wall 111 gradually decreases at the end along the gravity direction. Specifically, the protruding height of the end of the first water retaining member 131 and the second water retaining member 132 that is not connected to the waterproof member 14 on the wall 111 gradually decreases to guide the water at the end to the shell 11 to avoid splashing when the water flows down at the end.

Claims

1. A housing structure, characterized in that: include: A housing (11) is formed with a receiving space (B); A conductive port (12) for forming a channel for electrically connecting elements inside and outside the housing (11), wherein the conductive port (12) is formed on at least one wall (111) of the housing (11); and A water retaining assembly (13) is arranged on the wall of the housing (11) where the conductive opening (12) is formed, and is used to prevent water from entering the conductive opening (12). The water retaining assembly (13) comprises a first water retaining member (131) and a second water retaining member (132) which are arranged at intervals.

2. The housing structure according to claim 1, characterized in that: The extension directions of the first water retaining member (131) and the second water retaining member (132) respectively form a non-zero first angle (C1) and a second angle (C2) with the gravity direction.

3. The housing structure according to claim 2, characterized in that: The first angle (C1) and the second angle (C2) are both in the range of 20°-60°.

4. The housing structure according to claim 1, characterized in that: The first water blocking member (131) and the second water blocking member (132) are parallel to each other.

5. The housing structure according to claim 1, characterized in that: The wall extends along a first direction (D) perpendicular to the direction of gravity, and in the first direction (D), at least one of the size (L1) of the first water retaining member (131) and the size (L3) of the second water retaining member (132) is larger than the size (L2) of the conductive port (12).

6. The housing structure according to claim 5, characterized in that: The second water retaining member (132) is arranged between the first water retaining member (131) and the conductive port (12) in the direction of gravity. In the first direction (D), the size (L1) of the first water retaining member (131) is larger than the size (L2) of the conductive port (12); the size (L3) of the second water retaining member (132) is larger than the size (L2) of the conductive port (12) and smaller than the size (L1) of the first water retaining member (131).

7. The housing structure according to claim 1, characterized in that: A waterproof part (14) protruding toward the outside of the accommodating space (B) is provided at an edge of the housing (11) close to the conductive opening (12).

8. The housing structure according to claim 7, characterized in that: The first water retaining member (131) and / or the second water retaining member (132) are connected to the waterproof member (14).

9. The housing structure according to any one of claims 1 to 8, characterized in that: The water guiding surface (E) of at least one of the first water retaining member (131) and the second water retaining member (132) is provided with a water guiding groove; and / or the water guiding surface (E) of at least one of the first water retaining member (131) and the second water retaining member (132) is at least partially a curved surface; and / or the maximum protrusion height of the first water retaining member (131) and the second water retaining member (132) on the wall is 2-10 mm; and / or the protrusion height of at least one of the first water retaining member (131) and the second water retaining member (132) on the wall gradually decreases at the end along the gravity direction.

10. A driving device, characterized in that: It comprises a shell structure (10) as described in any one of claims 1 to 9, a driving member (20) accommodated in the accommodating space (B), and an electrical connecting member (30) connected to the driving member (20), wherein the electrical connecting member (30) is arranged in the accommodating space (B) and at a position corresponding to the conductive port (12).

11. The driving device according to claim 10, characterized in that The driving member (20) has a rotating driving shaft (21), the rotating driving shaft (21) has a rotating axis (A), and the housing (11) is provided with the conductive port (12) and the wall (111) of the water retaining assembly (13) which is a circumferential wall surrounding the rotating axis (A).

12. The driving device according to claim 11, characterized in that One end of the shell (11) along the rotation axis (A) is open and forms an opening (15) that penetrates the conductive port (12); the shell (11) is provided with a waterproof part (14) protruding toward the outside of the accommodating space (B) at the edge close to the opening (15) and the conductive port (12); the first water retaining part (131) and / or the second water retaining part (132) are connected to the waterproof part (14).

13. The driving device according to claim 11, characterized in that The conductive opening (12) is located on both sides of the vertical plane where the rotation axis (A) is located, and two groups of water retaining components (13) are provided. The two groups of water retaining components (13) are respectively located on the upper side of the conductive opening (12) on both sides in the direction of gravity.

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