Connector protection shell, connector assembly and motor assembly

Abstract

The utility model discloses a connector protection housing, a connector assembly and a motor assembly, the connector protection housing is used for sleeving a connector body having a male end and a female end which are in plugging cooperation, and the connector protection housing comprises a first housing, a second housing, a first sealing ring and second sealing rings which are respectively arranged in the first housing and the second housing. The second shell and the first shell are detachably connected and define an inner cavity, the inner cavity is used for containing the connector body, the inner cavity penetrates through the connector protection shell and comprises a first through hole and a second through hole which are located at the two ends in the penetrating direction, and the first through hole is used for allowing a first wire connected with a male end to penetrate through; the second through hole is used for a second wire connected with the female end to pass through; the first sealing ring is arranged between the first shell and the second shell and used for enabling the first shell and the second shell to be connected in a sealed mode. The two second sealing rings are used for being in sealing fit with the first wire and the second wire respectively. The connector protection shell of the utility model has good waterproof and oil-proof effects.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a connector protection shell, a connector component and a motor component. Background Art

[0002] The leads and extension cords of servo motors, permanent magnet motors and other motors are generally connected through quick-plug connectors. The connector protective shell of traditional quick-plug connectors only provides one-sided protection, that is, it only protects the connection between the wire and the female or male end of the connector, but does not protect the connection between the male and female ends of the connector. Therefore, it cannot achieve complete waterproof and oil resistance, and its waterproof and oil resistance performance is poor, posing a safety hazard. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a connector protective shell with good waterproof and oil-proof effects.

[0004] The utility model also provides a connector assembly having the connector protection shell and a motor assembly having the connector assembly.

[0005] According to the first aspect of the present invention, a connector protective shell is used to be sleeved on a connector body having a male end and a female end for plug-in mating, and the connector protective shell includes a first shell; a second shell is detachably connected to the first shell and defines an inner cavity, the inner cavity is used to accommodate the connector body, the inner cavity passes through the connector protective shell, the inner cavity includes a first through hole and a second through hole located at both ends along the penetration direction, the first through hole is used for a first wire connected to the male end to pass through, and the second through hole is used for a second wire connected to the female end to pass through; a first sealing ring is arranged between the first shell and the second shell and is used to seal the first shell and the second shell; second sealing rings are respectively arranged in the first shell and the second shell, and the two second sealing rings are respectively used to seal with the first wire and the second wire.

[0006] The connector protective shell according to the embodiment of the first aspect of the utility model has at least the following beneficial effects: by providing the first shell and the second shell, the connector body is accommodated in the inner cavity defined by the first shell and the second shell, and the first shell and the second shell are sealed and connected by the first sealing ring. At the same time, the first shell and the second shell are respectively sealed and matched with the first wire and the second wire connected to the connector body through the second sealing ring, thereby preventing water and oil from entering the inner cavity, meeting the waterproof and oil-proof requirements of the connector body, and having good waterproof and oil-proof effects, thereby improving safety.

[0007] According to some embodiments of the present invention, the first shell includes a first connecting portion, the second shell includes a second connecting portion, the second connecting portion is detachably connected to the first connecting portion, and the first sealing ring is provided at the junction of the first connecting portion and the second connecting portion.

[0008] According to some embodiments of the present invention, the first connecting portion or the second connecting portion is provided with a positioning groove, and a partial structure of the first sealing ring is accommodated in the positioning groove.

[0009] According to some embodiments of the present utility model, the first shell and the second shell are both cylindrical structures, the first through hole is provided at one end of the first shell away from the second shell, and the second through hole is provided at one end of the second shell away from the first shell.

[0010] According to some embodiments of the utility model, the connector protective shell is formed with a third connecting portion, the third connecting portion is the wall of the first through hole, the connector protective shell also includes a pressing piece, the second sealing ring is arranged at the end of the first through hole away from the second through hole and can be sleeved on the first wire, the pressing piece is provided with a third through hole and can be sleeved on the first wire and the second sealing ring, the pressing piece is connected to the third connecting portion to drive the second sealing ring to fit the outer wall of the first wire.

[0011] According to some embodiments of the utility model, the connector protective shell includes a plurality of claws, the plurality of claws are connected to the third connecting portion and are located at one end of the first through hole away from the second through hole, the plurality of claws are arranged at intervals along the circumference of the first through hole, the second sealing ring is arranged in the space surrounded by the plurality of claws, and the pressing piece is sleeved on the outer periphery of the plurality of claws.

[0012] According to some embodiments of the utility model, the third connecting portion is provided with a stop groove, the stop groove is located at one end of the claw portion close to the first through hole, the stop groove is arranged around the first through hole, and the second sealing ring is provided with a stop portion, and the stop portion is accommodated in the stop groove.

[0013] According to some embodiments of the present invention, the opening of the stop groove faces the claw portion.

[0014] According to some embodiments of the utility model, the pressing piece forms a pressing portion on the inner wall of the third through hole, the pressing portion is arranged around the plurality of claw portions, and the inner diameter of the pressing piece at the pressing portion decreases along the central axis of the third through hole and in a direction away from the second through hole.

[0015] According to the second embodiment of the present invention, the connector assembly comprises a connector body and a connector protective shell according to the first embodiment.

[0016] The connector assembly according to the embodiment of the second aspect of the utility model has at least the following beneficial effects: since the connector assembly adopts the above-mentioned connector protective shell, by setting the first shell and the second shell, the connector body is accommodated in the inner cavity defined by the first shell and the second shell, and the first shell and the second shell are sealed and connected by the first sealing ring. At the same time, the first shell and the second shell are respectively sealed and matched with the first wire and the second wire connected to the connector body through the second sealing ring, so as to prevent water and oil from entering the inner cavity, thereby meeting the waterproof and oil-proof requirements of the connector body, and having good waterproof and oil-proof effects, thereby improving safety.

[0017] According to the third aspect of the present invention, the motor assembly includes:

[0018] The motor body, including the leads;

[0019] In the connector assembly of the second embodiment, the connector body is connected to the lead.

[0020] The motor assembly according to the embodiment of the third aspect of the utility model has at least the following beneficial effects: since the motor assembly adopts the above-mentioned connector assembly, by setting the first shell and the second shell, the connector body is accommodated in the inner cavity defined by the first shell and the second shell, and the first shell and the second shell are sealed and connected by the first sealing ring. At the same time, the first shell and the second shell are respectively sealed and matched with the first wire and the second wire connected to the connector body through the second sealing ring, so as to prevent water and oil from entering the inner cavity, thereby meeting the waterproof and oil-proof requirements of the connector body, and having good waterproof and oil-proof effects, thereby improving safety.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 It is a structural schematic diagram of a connector assembly in an embodiment of the utility model;

[0024] Figure 2 yes Figure 1 An exploded schematic diagram of the connector assembly;

[0025] Figure 3 yes Figure 1 A cross-sectional view of a connector assembly;

[0026] Figure 4 is a cross-sectional view of the first housing in an embodiment of the utility model;

[0027] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 is a cross-sectional view of the second sealing ring in the embodiment of the utility model;

[0029] Figure 7 It is a cross-sectional view of the pressing piece in the embodiment of the utility model.

[0030] Reference numerals:

[0031] Connector body 100; male end 110; female end 120;

[0032] Connector protective shell 200; first shell 210; first through hole 211; first connecting portion 212; claw portion 213; fixed end 2131; free end 2132; stopper groove 214; bottom wall 2141; first side wall 2142; second side wall 2143; end wall 2144; operating portion 215; second shell 220; second through hole 221; second connecting portion 222; positioning groove 223; inner cavity 230; first sealing ring 240; second sealing ring 250; stopper portion 251; pressing piece 260; third through hole 261; pressing portion 262; third connecting portion 270; fourth connecting portion 280;

[0033] A first conductive wire 300;

[0034] The second conductive line 400 . DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 invention.

[0037] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, assembling, and matching should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model based on the specific content of the technical solution.

[0039] To facilitate wiring, the leads and extension cords of motors such as servo motors and permanent magnet motors are generally connected through quick-plug connectors. The protective shell of traditional quick-plug connectors only protects one side. For example, two snap-fit ​​shells are set at the connection between the male end (or female end) of the connector and the wire. After the wire is connected to the male end (or female end), the two shells are used to wrap the connection between the male end (or female end) and the wire, thereby protecting the connection between the male end (or female end) and the wire, and having a certain waterproof and oil-proof effect. However, there is no sealing structure between the two shells, and water and oil can easily penetrate into the connection. The waterproof and oil-proof effects are average, and there are safety hazards.

[0040] At the same time, the two shells only protect the connection between the male end (or female end) and the wire, but do not protect the joint between the male end and the female end. The waterproof and oil-proof effects are poor, and there are also safety hazards.

[0041] For this purpose, refer to Figures 1 to 7 As shown, the first embodiment of the utility model provides a connector protective shell, which is used to be sleeved outside the connector body 100. The connector protective shell 200 and the connector body 100 are combined to form a connector assembly, and the connector assembly connects two wires, for example, the lead wire of the servo motor is connected to the extension wire to extend the connection wire of the servo motor. The two wires connected to the connector body 100 are defined as a first wire 300 and a second wire 400.

[0042] The specific structure of the connector protective shell 200 is described in detail below by taking the connector assembly as an example.

[0043] Reference Figures 1 to 3As shown, it can be understood that the connector assembly includes a connector body 100 and a connector protective shell 200, and the connector body 100 is arranged in the connector protective shell 200. Specifically, the connector body 100 includes a male end 110 and a female end 120, and the male end 110 and the female end 120 are plug-in matched, which is convenient for operation. Among them, the male end 110 is connected to the first wire 300, for example, after the end of the first wire 300 is stripped of the insulation layer, the end of the first wire 300 is fastened to the wiring groove of the male end 110, and the female end 120 is connected to the second wire 400. Similarly, after the end of the second wire 400 is stripped of the insulation layer, the end of the second wire 400 is fastened to the wiring groove of the female end 120. When wiring, the male end 110 and the female end 120 are plugged together to make the first wire 300 and the second wire 400 conductive, which is convenient to operate.

[0044] Reference Figures 1 to 3 As shown, it can be understood that the connector protective shell 200 includes a first shell 210 and a second shell 220, which are detachably connected and define an inner cavity 230. Specifically, the first shell 210 and the second shell 220 are both cylindrical structures and are provided with a through cavity, that is, the cross-sections of the first shell 210 and the second shell 220 are both roughly circular, and the first shell 210 and the second shell 220 are connected to communicate with the two cavities, and the two cavities are combined to form the inner cavity 230, and the inner cavity 230 passes through the connector protective shell 200.

[0045] Reference Figures 1 to 3 As shown, it can be understood that the end of the first shell 210 close to the second shell 220 is the first connection part 212, and the end of the first shell 210 away from the second shell 220 is formed with a first through hole 211, the first through hole 211 is a part of the inner cavity 230, and the circumferential wall at the first through hole 211 is the third connection part 270, that is, the third connection part 270 is located at the end of the first shell 210 away from the second shell 220. Correspondingly, the end of the second shell 220 close to the first shell 210 is the second connection part 222, and the end of the second shell 220 away from the first shell 210 is formed with a second through hole 221, the second through hole 221 is a part of the inner cavity 230, and the circumferential wall at the second through hole 221 is the fourth connection part 280, that is, the fourth connection part 280 is located at the end of the second shell 220 away from the first shell 210.

[0046] Reference Figure 3As shown, it can be understood that both the first connection part 212 and the second connection part 222 are annular wall structures, and the first connection part 212 and the second connection part 222 are detachably connected. Specifically, the inner diameter of the first connection part 212 is larger than the outer diameter of the second connection part 222, the inner wall of the first connection part 212 is provided with an internal thread, and the outer diameter of the second connection part 222 is provided with an external thread. Through the cooperation of the internal thread and the external thread, the first connection part 212 and the second connection part 222 can be threadedly connected, that is, the first shell 210 and the second shell 220 are threadedly connected, which is convenient for installation and disassembly, and the connection is stable.

[0047] It can be understood that in other embodiments, the first connection part 212 and the second connection part 222 can also be connected by other connection methods. For example, the first connection part 212 is provided with a snap buckle, and the outer peripheral wall of the second connection part 222 is provided with a slot that cooperates with the snap buckle. After the two opposite end faces of the first connection part 212 and the second connection part 222 are fitted together, the snap buckle and the slot are snap-fitted to achieve the snap-fitting of the first connection part 212 and the second connection part 222, that is, the first shell 210 and the second shell 220 are snap-fitted.

[0048] Reference Figure 1 As shown, it can be understood that, in order to facilitate the operation of the first shell 210 and the second shell 220, the outer peripheral walls of the first shell 210 and the second shell 220 are provided with a plurality of operating parts 215, and the operating parts 215 can be grooves or bumps. Taking the first shell 210 as an example, the plurality of operating parts 215 are arranged at equal intervals around the cavity of the first shell 210. Therefore, when assembling the connector protective shell 200, the operator can hold the operating part 215 with his hand to conveniently rotate or push the first shell 210 (or the second shell 220), so that the first shell 210 and the second shell 220 are tightly connected.

[0049] Reference Figure 3 As shown, it can be understood that the cavities of the first shell 210 and the second shell 220 are combined to form an inner cavity 230, and the first through hole 211 and the second through hole 221 are located at both ends of the inner cavity 230. Generally speaking, along the plugging direction perpendicular to the male end 110 and the female end 120, the outer diameter of the connector body 100 is larger than the outer diameter of the first wire 300 (or the second wire 400). In order to adapt to the size of the connector body 100 and the first wire 300 (or the second wire 400), the inner diameter of the middle part of the inner cavity 230 is larger than the inner diameters of the first through hole 211 and the second through hole 221 at both ends, and the inner diameters of the first through hole 211 and the second through hole 221 only allow the first wire 300 (or the second wire 400) to pass through, while the male end 110 (or the female end 120) cannot pass through the first through hole 211 or the second through hole 221.

[0050] As shown in FIG. 3 , it can be understood that the connector body 100 is accommodated in the inner cavity 230, that is, the male end 110 and the female end 120 are both located in the inner cavity 230, so that the connector body 100 can be protected by the connector protective shell 200. The end of the first wire 300 extends into the inner cavity 230 through the first through hole 211 and is connected to the male end 110, and the end of the second wire 400 extends into the inner cavity 230 through the second through hole 221 and is connected to the female end 120. By plugging the male end 110 and the female end 120, the first wire 300 and the second wire 400 can be connected.

[0051] Reference Figure 3 As shown, it can be understood that, in order to improve the sealing performance of the connection between the first shell 210 and the second shell 220, the connector protective shell 200 further includes a first sealing ring 240, which can be a rubber member or a silicone member, etc. The first sealing ring 240 is sandwiched between the first shell 210 and the second shell 220. For the first shell 210 and the second shell 220 that are threadedly connected, the first sealing ring 240 is sleeved on the outer periphery of the second connecting portion 222. After the first connecting portion 212 of the first shell 210 is screwed onto the second connecting portion 222 of the second shell 220, the first connecting portion 212 and the second connecting portion 222 clamp the first sealing ring 240, thereby sealing the gap between the first connecting portion 212 and the second connecting portion 222, preventing water and oil from entering the inner cavity 230, and improving the sealing performance.

[0052] It can be understood that for the first shell 210 and the second shell 220 that are snap-fitted, the first sealing ring 240 is arranged between the two opposite end faces of the first connecting part 212 and the second connecting part 222. After the first shell 210 and the second shell 220 are snap-fitted, the first connecting part 212 and the second connecting part 222 are pressed against the first sealing ring 240, so that the gap between the first connecting part 212 and the second connecting part 222 can be sealed, thereby improving the sealing performance.

[0053] Reference Figure 2 and Figure 3As shown, it can be understood that, in order to facilitate the positioning and installation of the first sealing ring 240, the second connecting portion 222 is provided with a positioning groove 223, the positioning groove 223 is annular and arranged around the cavity of the second housing 220, and the first sealing ring 240 is partially accommodated in the positioning groove 223, that is, after the first sealing ring 240 is installed in the positioning groove 223, the first sealing ring 240 protrudes from the notch of the positioning groove 223. When the first connecting portion 212 is screwed onto the second connecting portion 222, the part of the second sealing ring 250 protruding from the positioning groove 223 contacts the first connecting portion 212, so that the first connecting portion 212 and the second connecting portion 222 can clamp the first sealing ring 240, thereby achieving sealing of the connection between the first connecting portion 212 and the second connecting portion 222. By setting the positioning groove 223, during assembly, the first sealing ring 240 can be first accommodated in the positioning groove 223, and then the first connecting part 212 and the second connecting part 222 can be connected, so that the first sealing ring 240 can be positioned during the assembly process to prevent the first sealing ring 240 from shifting and causing sealing failure, thereby reducing the difficulty of assembly.

[0054] It is understandable that when the inner diameter of the second connection part 222 is greater than the outer diameter of the first connection part 212, the second connection part 222 is sleeved on the outer periphery of the first connection part 212, and the positioning groove 223 is set on the outer periphery of the first connection part 212, which will not be repeated here.

[0055] Reference Figures 1 to 3As shown, it can be understood that, in order to further improve the sealing performance of the inner cavity 230, at the first through hole 211, the first housing 210 is sealed with the peripheral wall of the first wire 300, that is, the third connecting portion 270 is sealed with the peripheral wall of the first wire 300. Specifically, the connector protective shell 200 includes a second sealing ring 250 and a pressing member 260, the second sealing ring 250 can be a rubber member or a silicone member, the second sealing ring 250 is sleeved on the first wire 300, and the second sealing ring 250 is arranged at one end of the first through hole 211 away from the second housing 220. The pressing piece 260 is a nut structure and is provided with a third through hole 261. The inner diameter of the third through hole 261 is larger than the outer diameter of the first wire 300. The pressing piece 260 is sleeved on the first wire 300 and the second sealing ring 250 through the third through hole 261, that is, the first wire 300 is inserted into the third through hole 261. The pressing piece 260 is threadedly connected with the third connecting portion 270, and the second sealing ring 250 is accommodated in the pressing piece 260. When the pressing piece 260 is screwed, on the one hand, the second sealing ring 250 can be moved along the central axis direction of itself to press the third connecting portion 270 of the first housing 210 tightly, and on the other hand, the second sealing ring 250 can be contracted along the direction perpendicular to the central axis of the second sealing ring 250 to fit the outer peripheral wall of the first wire 300, thereby achieving a sealed fit between the third connecting portion 270 and the first wire 300, preventing water or oil from entering the inner cavity 230 from the gap between the first housing 210 and the first wire 300, and improving the sealing performance.

[0056] Reference Figures 1 to 3 As shown, it can be understood that, similarly, the sealing matching structure between the fourth connection part 280 and the peripheral wall of the second wire 400 can refer to the sealing matching structure between the third connection part 270 and the peripheral wall of the first wire 300, which will not be repeated here.

[0057] When connecting, first pass the end of the first wire 300 through the compression fitting 260, the second sealing ring 250 and the first housing 210 in sequence, and fix the end of the first wire 300 to the connection point of the male end 110. Similarly, pass the end of the second wire 400 through the compression fitting 260, the second sealing ring 250 and the second housing 220 connected to the second housing 220 in sequence, and fix the end of the second wire 400 to the connection point of the female end 120. Then, the male end 110 and the female end 120 are plugged and matched, so that the first wire 300 and the second wire 400 are connected. The first sealing ring 240 is installed at the positioning groove 223, and then the first connection part 212 of the first housing 210 is screwed to the second connection part 222 of the second housing 220 until it is tightened, so that the first housing 210 and the second housing 220 are connected. At this time, the connector body 100 is located in the inner cavity 230. Then, the pressing piece 260 at the first housing 210 is screwed to the third connection part 270 of the first housing 210, and the pressing piece 260 at the second housing 220 is screwed to the fourth connection part 280 of the second housing 220, so that a seal is formed between the first housing 210 and the peripheral wall of the first wire 300, and a seal is formed between the second housing 220 and the peripheral wall of the second wire 400. Therefore, the inner cavity 230 of the connector protective shell 200 is completely sealed to prevent water or oil from entering the inner cavity 230, meet the waterproof and oil-proof requirements of the connector body 100, and have good waterproof and oil-proof effects, thereby improving safety.

[0058] It can be understood that when the pressure of the pressing piece 260 on the second sealing ring 250 in the direction perpendicular to the central axis of the second sealing ring 250 is relatively large, the second sealing ring 250 can be pressed tightly against the first wire 300. Under the action of friction, the pressing piece 260, the second sealing ring 250 and the first shell 210 are relatively fixed to the first wire 300. Similarly, the second wire 400 is relatively fixed to the second shell 220. Therefore, when the external force pulls the first wire 300 and the second wire 400, since the first wire 300, the second wire 400 and the connector protective shell 200 are relatively fixed, the pulling force only acts on the connector protective shell 200, which can avoid the first wire 300 from pulling the male end 110 and the second wire 400 from pulling the female end 120, thereby preventing the first wire 300 from being separated from the male end 110 and the second wire 400 from being separated from the female end 120, thereby ensuring the connection reliability of the first wire 300, the second wire 400 and the connector body 100.

[0059] Reference Figure 3 and Figure 4As shown, it can be understood that the connector protective shell 200 also includes a plurality of claws 213. Specifically, the plurality of claws 213 are connected to the third connection portion 270 of the first shell 210 and are located at one end of the first through hole 211 away from the second shell 220. The claw 213 includes a fixed end 2131 and a free end 2132, wherein the fixed end 2131 is connected to the third connection portion 270 of the first shell 210, and the free end 2132 extends in a direction away from the second shell 220. The claw 213 is elastic, so under the action of an external force, the claw 213 can swing along the radial direction of the first through hole 211. The plurality of claws 213 are arranged at equal intervals along the circumference of the first through hole 211, so that an installation space is defined between the plurality of claws 213, the second sealing ring 250 is accommodated in the installation space, and the pressing member 260 is sleeved on the outer periphery of the plurality of claws 213.

[0060] Reference Figure 7 As shown, it can be understood that, correspondingly, the inner peripheral wall of the third through hole 261 of the pressing piece 260 is provided with a pressing portion 262, and the pressing portion 262 is arranged around the plurality of claws 213, and the inner diameter of the pressing piece 260 at the pressing portion 262 decreases from the second housing 220 toward the first housing 210, that is, along the central axis of the third through hole 261 and away from the second through hole 221. In other words, the pressing portion 262 has an annular wall body arranged obliquely relative to the central axis of the first through hole 211.

[0061] Therefore, by tightening the pressing piece 260, under the action of the pressing portion 262 of the pressing piece 260, the free ends 2132 of the plurality of claws 213 gradually shift toward the central axis of the second sealing ring 250, so that the plurality of claws 213 drive the second sealing ring 250 to shrink in a direction perpendicular to the central axis of the second sealing ring 250 to fit the outer peripheral wall of the first wire 300, thereby achieving a good seal and preventing water and oil from entering the inner cavity 230.

[0062] Reference Figure 4 and Figure 5As shown, it can be understood that the third connecting portion 270 of the first shell 210 is provided with a stop groove 214, and the stop groove 214 is located at one end of the claw portion 213 close to the first through hole 211. The stop groove 214 is an annular groove and is arranged around the first through hole 211. Specifically, the opening (i.e., the notch) of the stop groove 214 faces the claw portion 213, i.e., the notch of the stop groove 214 faces away from the second shell 220. The stop groove 214 includes a bottom wall 2141, a first side wall 2142, and a second side wall 2143, wherein the bottom wall 2141 is directly opposite to the notch, the first side wall 2142 and the second side wall 2143 are two wall surfaces of the stop groove 214 in the radial direction of the first through hole 211, the first side wall 2142 is closer to the central axis of the first through hole 211 than the second side wall 2143, and the first side wall 2142 is spaced apart from the inner peripheral wall of the first through hole 211. At the notch of the stop groove 214 , the wall body between the first side wall 2142 and the inner peripheral wall of the first through hole 211 has an end wall 2144 , that is, the end wall 2144 faces away from the second shell 220 .

[0063] Reference Figure 3 and Figure 6 As shown, it can be understood that, correspondingly, the second sealing ring 250 is provided with a stopper portion 251, which is located on the side of the second sealing ring 250 facing the first through hole 211, and the stopper portion 251 is annular and matches the stopper groove 214, that is, the stopper portion 251 can be accommodated in the stopper groove 214. During installation, the stopper portion 251 is accommodated in the stopper groove 214, so that the second sealing ring 250 can be positioned in the direction of the central axis of the first through hole 211, which is convenient for installation on the one hand, and can prevent the second sealing ring 250 from falling into the inner cavity 230 and causing sealing failure on the other hand.

[0064] It can be understood that, since the second sealing ring 250 is a rubber or silicone member and has elasticity, when the pressing member 260 presses the second sealing ring 250, the stopper portion 251 of the second sealing ring 250 can be deformed and completely fill the stopper groove 214, so that the stopper portion 251 abuts against the first side wall 2142, the bottom wall 2141 and the second side wall 2143 of the stopper groove 214, and at the same time, the second sealing ring 250 abuts against the end wall 2144. Therefore, the second sealing ring 250 and the first housing 210 have multiple seals at the stopper groove 214, which can increase the contact area between the second sealing ring 250 and the first housing 210, thereby improving the sealing between the first housing 210 and the outer peripheral wall of the first wire 300, preventing water and oil from entering the inner cavity 230, and having good sealing.

[0065] It is understandable that the stop groove 214 can be provided on the inner peripheral wall of the first through hole 211 and recessed radially toward the first through hole 211. At this time, the opening of the stop groove 214 faces the central axis of the first through hole 211. Correspondingly, the stop portion 251 is annular and located at the outer periphery of the second sealing ring 250. Therefore, since the stop portion 251 is deformable, when the second sealing ring 250 is installed, the stop portion 251 can also be accommodated in the stop groove 214, thereby achieving the positioning of the second sealing ring 250 and achieving the sealing between the outer peripheral wall of the first housing 210 and the first wire 300.

[0066] It is understandable that, similarly, the fourth connection portion 280 of the second shell 220 is also provided with a claw portion 213 and a stop groove 214, and the structure of the third connection portion 270 of the first shell 210 may be referred to, which will not be repeated here.

[0067] In other embodiments, it can be understood that the first shell 210 and the second shell 220 can be a half-shell structure with an arc-shaped cross section, and the first shell 210 of the half-shell structure and the half-shell structure 220 form a connector protective shell 200 of a cylindrical structure. Along the axial direction of the cylindrical structure, the ends of the first shell 210 and the second shell 220 at the same end are combined to form a third connecting portion 270 and a first through hole 211 surrounded and defined by the third connecting portion 270, and the ends of the other end are combined to form a fourth connecting portion 280 and a second through hole 221 surrounded and defined by the fourth connecting portion 280, which will not be repeated here.

[0068] A second embodiment of the present invention provides a connector assembly, including a connector body 100 and a connector protective shell 200 according to the first embodiment of the present invention, wherein the connector body 100 is accommodated in an inner cavity 230 of the connector protective shell 200 .

[0069] Since the connector assembly adopts all the technical solutions of the connector protection shell 200 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment.

[0070] The third aspect of the utility model provides a motor assembly, including a motor body and a connector assembly according to the second aspect of the utility model, wherein the motor body includes a lead wire, which may be a power supply wire or a signal control wire of the motor body, or a combination of a power supply wire and a signal control wire of the motor body. The lead wire is connected to the male end 110 or the female end 120 of the connector body 100 so that the lead wire is connected to an extension wire, thereby expanding the wiring range of the motor body.

[0071] Since the motor assembly adopts all the technical solutions of the connector assembly of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment.

[0072] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Connector protective shell, used to be placed outside the connector body with male and female ends for plug-in mating, It is characterized in that The connector protective shell comprises: a first shell; A second shell is detachably connected to the first shell and defines an inner cavity, the inner cavity is used to accommodate the connector body, the inner cavity passes through the connector protective shell, the inner cavity includes a first through hole and a second through hole located at both ends along the through direction, the first through hole is used for a first wire connected to the male end to pass through, and the second through hole is used for a second wire connected to the female end to pass through; A first sealing ring, disposed between the first shell and the second shell and used to seal the first shell and the second shell; The second sealing rings are respectively arranged in the first shell and the second shell, and the two second sealing rings are respectively used to seal and cooperate with the first wire and the second wire.

2. The connector protective shell according to claim 1, Features: The first shell includes a first connecting portion, the second shell includes a second connecting portion, the second connecting portion is detachably connected to the first connecting portion, and the first sealing ring is arranged at the junction of the first connecting portion and the second connecting portion.

3. The connector protection shell according to claim 2, Features: The first connecting portion or the second connecting portion is provided with a positioning groove, and a partial structure of the first sealing ring is accommodated in the positioning groove.

4. The connector protection shell according to claim 1, Features: The first shell and the second shell are both cylindrical structures. The first through hole is provided at one end of the first shell away from the second shell, and the second through hole is provided at one end of the second shell away from the first shell.

5. The connector protective shell according to claim 1 or 4, Features: The connector protective shell is formed with a third connecting portion, and the third connecting portion is the wall of the first through hole. The connector protective shell also includes a pressing piece. The second sealing ring is arranged at an end of the first through hole away from the second through hole and can be sleeved on the first wire. The pressing piece is provided with a third through hole and can be sleeved on the first wire and the second sealing ring. The pressing piece is connected to the third connecting portion to drive the second sealing ring to fit the outer wall of the first wire.

6. The connector protection shell according to claim 5, Features: The connector protective shell includes a plurality of claws, which are connected to the third connecting portion and located at one end of the first through hole away from the second through hole, and the plurality of claws are arranged at intervals along the circumference of the first through hole. The second sealing ring is arranged in the space surrounded by the plurality of claws, and the pressing piece is sleeved on the outer periphery of the plurality of claws.

7. The connector protection shell according to claim 6, Features: The third connecting portion is provided with a stop groove, the stop groove is located at one end of the claw portion close to the first through hole, the stop groove is arranged around the first through hole, and the second sealing ring is provided with a stop portion, and the stop portion is accommodated in the stop groove.

8. The connector protection shell according to claim 7, Features: The opening of the stop groove faces the claw portion.

9. The connector protection shell according to claim 6, Features: The press fitting has a press fitting portion formed on the inner wall of the third through hole, the press fitting portion is arranged around the plurality of claws, and the inner diameter of the press fitting at the press fitting portion decreases in a direction along the central axis of the third through hole and away from the second through hole.

10. Connector assembly, It is characterized in that The invention comprises a connector body and a connector protection shell as claimed in any one of claims 1 to 9.

11. Motor assembly, It is characterized in that include: The motor body, including the leads; The connector assembly according to claim 10, wherein the connector body is connected to the lead wire.

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