Waterproof connector of electrical equipment

Abstract

The invention relates to the technical field of electrical connection, in particular to a waterproof connector of electrical equipment, which is used for connecting two cables and comprises a plugging end, a plug board and a clamping part, the plugging end and the plug board are arranged along a first direction and relatively slide along the first direction, a jack penetrating through the plugging end is formed in the plugging end, and the clamping part is arranged on the plugging end. One end of the cable core extends along a first direction, passes through the jack and then extends reversely; the plug board is connected with a cable core of the other cable, a groove is formed in one side, close to the plug-in end, of the plug board, the plug board is close to the plug-in end and clamps the cable cores on the two sides of the plug hole through the groove, and the clamping part is used for clamping and limiting the cable cores on the inner side and the outer side of the plug-in end when the plug board is close to the plug-in end. The corresponding cable core is bent on the plugging end, so that the friction force between the cable core and the plugging end can be increased, and the movement of the cable is hindered; and the clamping part clamps and positions the cable core on the plugging end, so that the moving resistance of the cable core on the plugging end is further increased, and the probability of poor contact is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection, and particularly to a waterproof connector for electrical equipment. Background Art

[0002] In electrical equipment, as a key component to ensure the stable and safe operation of electrical connection of the equipment, waterproof connectors are widely used in scenarios such as electronic devices, household appliances, and general industrial equipment. Currently, most of the common waterproof connectors on the market adopt a plug-in connection structure to meet the requirement of quick connection.

[0003] Ordinary plug-in connectors are usually divided into two parts. One part is arranged on the equipment and used as a quick connector, and the other part is connected to an external cable. Since there is no effective cable anti-pulling and fixing structure inside the connector, it is difficult to provide sufficient binding force to resist external forces. When the external cable is pulled by an external force, it is easy to have a sliding displacement inside the connector. Once the cable slides, the contact area between the conductor inside and the connector terminal decreases or even separates, which will inevitably lead to poor contact and seriously affect the normal operation of electrical equipment. Summary of the Invention

[0004] Based on this, it is necessary to provide a waterproof connector for electrical equipment to solve the problem of easy poor contact when using a waterproof connector to connect cables at present.

[0005] The above object is achieved by the following technical solutions: A waterproof connector for electrical equipment is used for connecting two cables, and includes a plug end and a fixed end. The plug end and the fixed end are arranged along a first direction and slide relative to each other along the first direction. A jack is provided on the plug end and penetrates the plug end along a second direction. One end of the core of one cable extends along the first direction, passes through the jack and then extends in the reverse direction. The second direction is perpendicular to the first direction. The fixed end includes a plug board and a clamping portion. The plug board is connected to the core of the other cable. The plug board is parallel to the first direction. A groove is provided on the side of the plug board close to the plug end. When the plug board approaches the plug end, the core on both sides of the jack is clamped by the groove. The clamping portion is used to clamp and limit the core on both the inner and outer sides of the plug end when the plug board approaches the plug end.

[0006] Preferably, a blade is provided on the plug board, and the blade is located in the groove. The groove has a large end and a small end, and the large end of the groove is located on the side of the plug board close to the plug end.

[0007] Preferably, the waterproof connector for electrical equipment further includes a first sleeve, a second sleeve, and a fixing plate. The first sleeve and the second sleeve are threadedly connected. The axes of the first sleeve and the second sleeve both extend along the first direction. The plug end is rotatably arranged in the first sleeve around the axis of the first sleeve. The plug board is arranged in the second sleeve and is connected to the second sleeve through the fixing plate. The fixing plate is connected to the second sleeve.

[0008] Preferably, a conical surface is provided on the insertion end. The axis of the conical surface is coaxial with the first sleeve, and the conical surface gradually moves away from the axis of the first sleeve from the side far from the fixed plate to the side close to the fixed plate. The insertion end abuts against the first sleeve in the first direction through the conical surface.

[0009] Preferably, the insertion end is tubular, and there are multiple jacks. The multiple jacks are arranged in the circumferential direction of the insertion end, and each jack penetrates the side wall of the insertion end in the radial direction of the insertion end. There are multiple insertion plates, and each insertion plate corresponds to one jack.

[0010] Preferably, a clamping groove is provided on the insertion plate. The clamping groove is located inside the insertion end and communicates with the groove. The clamping groove includes a first surface and a second surface arranged in the first direction. The second surface is closer to the fixed plate than the first surface, and the first surface gradually moves away from the fixed plate from the side close to the groove to the side far from the groove.

[0011] Preferably, the clamping part includes clamping plates and limiting blocks. There are multiple groups of clamping plates and multiple limiting blocks. The limiting blocks are arranged on the insertion end. The clamping plates are slidably connected to the insertion end in the first direction. The multiple groups of clamping plates and the multiple limiting blocks are alternately arranged in the circumferential direction of the insertion end, and each jack is located between two adjacent limiting blocks. The number of clamping plates in each group is two, and all the clamping plates in the multiple groups of clamping plates are arranged in the circumferential direction of the insertion end. The two clamping plates in each group are located on both sides of an insertion plate; the two mutually approaching surfaces of two adjacent limiting blocks are inclined surfaces, and the two inclined surfaces gradually approach each other from the side close to the fixed plate to the side far from the fixed plate. Each clamping plate is slidably connected to the inclined surface of a limiting block adjacent to it, and the two clamping plates in each group approach or move away from each other through the inclined surfaces.

[0012] Preferably, there are two groups of clamping parts. One group is arranged on the outer peripheral surface of the insertion end, and the other group is arranged on the inner peripheral surface of the insertion end.

[0013] Preferably, the fixed end further includes a guide post, a connecting plate and an elastic member. One end of the guide post is arranged on the fixed plate. The connecting plate is slidably arranged on the guide post in the first direction. The clamping plate is connected to the connecting plate. The elastic member is arranged between the connecting plate and the fixed plate and is used to make the clamping plate contact the cable core before the insertion plate contacts the cable core on the insertion end.

[0014] Preferably, reinforcing ribs are provided on the insertion plate, and the reinforcing ribs extend in the first direction.

[0015] The beneficial effects of the present invention are as follows: jacks are provided, and the corresponding cable cores are bent at the plug-in end. When the cable outside the plug-in end is subjected to an external pulling force, the friction between the cable core bent at the plug-in end and the plug-in end will increase, thereby hindering the movement of the cable; a clamping part is provided to clamp and position the cable core on the plug-in end, further increasing the movement resistance of the cable core on the plug-in end; at the same time, the clamping part limits the cable core, enabling the plug board to contact the cable core more precisely and reducing the probability of poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic structural diagram of a waterproof connector for an electrical device provided by an embodiment of the present invention; Figure 2 FIG. 2 is a right view of a waterproof connector for an electrical device provided by an embodiment of the present invention; Figure 3 FIG. 3 Figure 2 is a cross-sectional view taken along line A-A in FIG. 1; Figure 4 FIG. 4 Figure 3 is an enlarged view of part B in FIG. 3; Figure 5 FIG. 5 is an exploded view of a waterproof connector for an electrical device provided by an embodiment of the present invention; Figure 6 FIG. 6 is a schematic structural diagram of the plug-in end of a waterproof connector for an electrical device provided by an embodiment of the present invention; Figure 7 FIG. 7 is a schematic structural diagram of the clamping plate of a waterproof connector for an electrical device provided by an embodiment of the present invention; Figure 8 FIG. 8 is a schematic structural diagram of the plug board of a waterproof connector for an electrical device provided by an embodiment of the present invention.

[0017] Wherein: 100, plug-in end; 101, jack; 102, conical surface; 103, plug board; 104, groove; 105, reinforcing rib; 106, first surface; 107, second surface; 108, clamping plate; 109, limiting block; 110, connecting plate; 121, first sleeve; 122, second sleeve; 123, fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The serial numbers assigned to the components in this text, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The terms "connection" and "coupling" as used in this invention, unless otherwise specifically stated, both include direct and indirect connection (coupling). In the description of this invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to this invention.

[0020] In this invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0021] As Figures 1 to 8 As shown, a waterproof connector for an electrical device provided by an embodiment of this invention is used for connecting two cables, and includes a plug-in end 100 and a fixed end. The plug-in end 100 and the fixed end are arranged along a first direction and slide relative to each other along the first direction. A jack 101 is formed on the plug-in end 100 and penetrates through the plug-in end 100 along a second direction. One end of the core of one cable extends along the first direction, passes through the jack 101 and then extends in the reverse direction, and the second direction is perpendicular to the first direction; the fixed end includes a plug board 103 and a clamping portion. The plug board 103 is connected to the core of the other cable. The plug board 103 is parallel to the first direction. A groove 104 is provided on the side of the plug board 103 close to the plug-in end 100. When the plug board 103 approaches the plug-in end 100, the core on both sides of the jack 101 is clamped by the groove 104, and the clamping portion is used to clamp and limit the core on both the inner and outer sides of the plug-in end 100 when the plug board 103 approaches the plug-in end 100.

[0022] A jack 101 is provided, and the corresponding cable core is bent at the insertion end 100. When the cable outside the insertion end 100 is subjected to an external pulling force, the friction force between the cable core bent on the insertion end 100 and the insertion end 100 will increase, thereby hindering the movement of the cable. A clamping portion is provided to clamp and position the cable core on the insertion end 100, further increasing the movement resistance of the cable core on the insertion end 100. At the same time, the clamping portion limits the cable core, enabling the plug board 103 to contact the cable core more precisely and reducing the probability of poor contact.

[0023] In this embodiment, a blade is provided on the plug board 103. The blade is located in the groove 104. The groove 104 has a large end and a small end. The large end of the groove 104 is located on the side of the plug board 103 close to the insertion end 100. The blade can easily pierce the wire skin on the cable core, enabling the plug board 103 to contact the cable core better. The groove 104 is inclined with respect to the cable core on the insertion end 100. During the movement of the plug board 103 relative to the cable core, the blade can more easily cut the wire skin of the cable core, and at the same time, it can also make the plug board 103 contact the cable core more tightly.

[0024] In this embodiment, the waterproof connector of the electrical device further includes a first sleeve 121, a second sleeve 122, and a fixing plate 123. The first sleeve 121 and the second sleeve 122 are threadedly connected. The axes of the first sleeve 121 and the second sleeve 122 both extend along the first direction. The insertion end 100 is rotatably arranged in the first sleeve 121 around the axis of the first sleeve 121. The first sleeve 121 is sleeved on the cable connected to the insertion end 100. The plug board 103 is arranged in the second sleeve 122 and connected to the second sleeve 122 through the fixing plate 123. The fixing plate 123 is connected to the second sleeve 122. The second sleeve 122 is sleeved on the cable connected to the fixed end. The first sleeve 121 and the second sleeve 122 are respectively in contact with the corresponding cables, making the interiors of the first sleeve 121 and the second sleeve 122 have a certain degree of airtightness.

[0025] In this embodiment, a conical surface 102 is provided on the insertion end 100. The axis of the conical surface 102 is coaxial with the first sleeve 121, and the conical surface 102 gradually moves away from the axis of the first sleeve 121 from the side far from the fixing plate 123 to the side close to the fixing plate 123. The insertion end 100 abuts against the first sleeve 121 in the first direction through the conical surface 102. The insertion end 100 can be taken out of the first sleeve 121, facilitating the installation of the cable core. After the first sleeve 121 and the second sleeve 122 are threadedly connected, as the first sleeve 121 and the second sleeve 122 approach each other, the first sleeve 121 can push the insertion end 100 closer to the plug board 103, enabling the plug board 103 to be inserted into the insertion end 100.

[0026] In this embodiment, the plug-in end 100 is cylindrical. The cable connected to the plug-in end 100 enters the plug-in end 100 from the inside of the plug-in end 100. There are multiple jacks 101, and the multiple jacks 101 are arranged in the circumferential direction of the plug-in end 100. Each jack 101 penetrates the side wall of the plug-in end 100 in the radial direction of the plug-in end 100. The cable connected to the plug-in end 100 is located on both the inside and outside of the plug-in end 100 under the action of the jack 101. When the plug board 103 is inserted into the plug-in end 100 along the first direction, the plug board 103 can clamp the cable cores on both the inside and outside of the plug-in end 100, increasing the contact area between the cable core and the plug board 103. There are multiple plug boards 103, and the multiple plug boards 103 are arranged in the circumferential direction of the plug-in end 100. Each plug board 103 corresponds to one jack 101. The cylindrical design of the plug-in end 100 can reduce its own volume while connecting cables with different numbers of cable cores, expanding its scope of use.

[0027] In this embodiment, the plug board 103 is provided with a card slot. The card slot is located inside the plug-in end 100 and is communicated with the groove 104. The card slot includes a first surface 106 and a second surface 107 arranged along the first direction. The second surface 107 is closer to the fixing plate 123 than the first surface 106, and the first surface 106 gradually moves away from the fixing plate 123 from the side close to the groove 104 to the side far from the groove 104. When the cable in the first sleeve 121 is subjected to a tensile force, it will drive the cable core inside the plug-in end 100 to tend to move away from the fixing plate 123. At this time, the card slot is equivalent to a barb that hooks the wire skin on the cable core. The first surface 106 is provided with a chamfer, and the chamfer can reduce the damage of the first surface 106 to the wire skin. At the same time, there is an angle between the connection between the card slot and the groove 104 and the surface of the cable core in contact. If the cable core moves relative to the plug board 103, the plug board 103 can abut against the cable core and even be embedded into the cable core through the card slot to prevent further movement of the cable core.

[0028] In this embodiment, the clamping part includes clamping plates 108 and limiting blocks 109. There are multiple groups of clamping plates 108 and multiple limiting blocks 109. The limiting blocks 109 are arranged on the insertion end 100. The clamping plates 108 are slidably connected to the insertion end 100 along the first direction. The multiple groups of clamping plates 108 and the multiple limiting blocks 109 are alternately arranged in sequence around the circumferential direction of the insertion end 100. Each jack 101 is located between two adjacent limiting blocks 109. The number of clamping plates 108 in each group is two, and all the clamping plates 108 in the multiple groups of clamping plates 108 are arranged around the circumferential direction of the insertion end 100. The two clamping plates 108 in each group are located on both sides of an insertion plate 103; the two mutually approaching surfaces of two adjacent limiting blocks 109 are inclined surfaces, and the two inclined surfaces gradually approach each other from the side close to the fixing plate 123 to the side far from the fixing plate 123. Each clamping plate 108 is slidably connected to the inclined surface of an adjacent limiting block 109, and the two clamping plates 108 in each group approach or move away from each other through the inclined surfaces. The clamping plate 108 has a certain toughness and a deflection axis. After the two clamping plates 108 in each group come into contact with the limiting block 109, they will deflect around their own axes under the guidance of the inclined surface of the limiting block 109 and approach the cable core between them to clamp the cable core; after the clamping plate 108 is separated from the limiting block 109, the clamping plate 108 can be reset through its own toughness.

[0029] In this embodiment, there are two groups of clamping parts. One group is arranged on the outer peripheral surface of the insertion end 100, and the other group is arranged on the inner peripheral surface of the insertion end 100. The two groups of clamping parts clamp the cable cores on both sides of the jack 101 synchronously, further improving the stability of the cable core on the fixed end.

[0030] In this embodiment, the fixed end further includes a guide post, a connecting plate 110 and an elastic member. One end of the guide post is arranged on the fixing plate 123. The connecting plate 110 is slidably arranged on the guide post along the first direction. The clamping plate 108 is connected to the connecting plate 110. The elastic member is arranged between the connecting plate 110 and the fixing plate 123 and is used to make the clamping plate 108 contact the cable core before the insertion plate 103 contacts the cable core on the insertion end 100. The elastic member can be a spring. The spring is sleeved on the guide post, and the two ends of the spring are respectively connected to the connecting plate 110 and the fixing plate 123. Before the insertion end 100 contacts the insertion plate 103, the clamping plate 108 first contacts the cable core on the insertion end 100 and fixes and limits the cable core, so that the insertion plate 103 can better contact the cable core.

[0031] In this embodiment, the insertion plate 103 is provided with reinforcing ribs 105. The reinforcing ribs 105 extend along the first direction. The reinforcing ribs 105 are used to improve the strength of the insertion plate 103 in the first direction, so that the insertion plate 103 is not easily deformed after the contact pressure between the insertion plate 103 and the cable core increases.

[0032] The working principle of a waterproof connector of an electrical device provided by the above embodiment is as follows: First, the first sleeve 121 and the plug-in end 100 pass through the cable, and the plug-in end 100 can be installed into the first sleeve 121. Then, the cable sheath at one end of the cable close to the jack 101 is peeled off to expose the cable core inside the cable. If there are multiple cable cores, each cable core is respectively inserted into a jack 101, and the inserted cable cores are bent backward along the axial direction of the fixed end between two limiting blocks 109 adjacent to the jack 101, and the cable cores inside the plug-in end 100 are adjusted so that they are also located between two limiting blocks 109 adjacent to the jack 101. Then, the plug-in end 100 approaches the clamping plate 108, so that each group of clamping plates 108 is slidably connected to two limiting blocks 109 adjacent to a jack 101. Then, while maintaining the current state, the first sleeve 121 is pushed to contact the second sleeve 122, and the first sleeve 121 is rotated so that the first sleeve 121 approaches the second sleeve 122 along the first direction.

[0033] The first sleeve 121 approaching the second sleeve 122 will push the plug-in end 100 to move accordingly through the conical surface 102 of the plug-in end 100. The plug-in end 100 approaches the plug plate 103. During the movement, the two clamping plates 108 in each group approach each other under the guidance of the inclined surfaces of the limiting blocks 109 to which they are slidably connected and clamp the cable core between the two clamping plates 108. When the clamping force of the two clamping plates 108 on the cable core is greater than the elastic force of the spring, the spring will be compressed, and the limiting block 109 will push the corresponding clamping plate 108 to approach the fixing plate 123 along the first direction. The clamping plate 108 drives the connecting plate 110 to slide on the guide post, and the connecting plate 110 continues to compress the spring. The cable cores in the jacks 101 continuously approach until they slide into the grooves 104 of the plug plate 103. When the blade on the plug plate 103 contacts the cable core, it will damage the cable sheath of the cable core. As the cable core moves, the cutting depth of the blade on the plug plate 103 will increase until the cable sheath is cut through and the blade contacts the cable core. During the process, the spring is compressed to the extreme, the clamping plate 108 no longer moves along the first direction, and the limiting block 109 and the clamping plate 108 slide relative to each other. The two clamping plates 108 in the same group continuously squeeze the cable core under the guidance of the inclined surfaces of the limiting blocks 109, so that the cable core extends along the first direction and the cable core deforms, and the cable sheath arches, making it easier to contact the blade. At the same time, the blade at the card slot position will leave an arc track on the cable sheath after contacting the cable sheath and then contact the cable core. If the cable of the plug-in end 100 is subjected to a pulling force, the cable cores on the inner side of the plug-in end 100 will be subjected to a pulling force away from the jack 101. At this time, the clamping force of the clamping plate 108 and the barbs formed by the card slots will also prevent the movement of the cable core (if the cable core contains multiple strands of wire cores, the clamping plate will cause the cable core to deform when clamping the cable core, and the wires in the cable core will approach the direction of the blade, so that the blade at the card slot position can be clamped between multiple wire cores, thereby better preventing the movement of the cable core).

[0034] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered that the scope recorded in this specification.

[0035] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A waterproof connector for an electrical device, used for connecting two cables, characterized in that, It includes a plug-in end and a fixed end. The plug-in end and the fixed end are arranged along a first direction and slide relative to each other along the first direction. A jack is provided on the plug-in end and penetrates the plug-in end along a second direction. One end of the core of a cable extends along the first direction, passes through the jack, and then extends in the reverse direction. The second direction is perpendicular to the first direction. The fixed end includes a plug board and a clamping portion. The plug board is connected to the core of the other cable. The plug board is parallel to the first direction. A groove is provided on the side of the plug board close to the plug-in end. When the plug board approaches the plug-in end, the core on both sides of the jack is clamped by the groove. The clamping portion is used to clamp and limit the core on both the inner and outer sides of the plug-in end when the plug board approaches the plug-in end.

2. The waterproof connector of an electrical device according to claim 1, characterized in that, A blade is provided on the plug board, and the blade is located in the groove. The groove has a large end and a small end, and the large end of the groove is located on the side of the plug board close to the plug-in end.

3. The waterproof connector of an electrical device according to claim 1, characterized in that, It further includes a first sleeve, a second sleeve, and a fixing plate. The first sleeve and the second sleeve are threadedly connected. The axes of the first sleeve and the second sleeve both extend along the first direction. The plug-in end is rotatably arranged in the first sleeve around the axis of the first sleeve. The plug board is arranged in the second sleeve and is connected to the second sleeve through the fixing plate. The fixing plate is connected to the second sleeve.

4. The waterproof connector for an electrical device according to claim 3, characterized in that, A conical surface is provided on the plug-in end. The axis of the conical surface is coaxial with the first sleeve, and the conical surface gradually moves away from the axis of the first sleeve from the side far from the fixing plate to the side close to the fixing plate. The plug-in end abuts against the first sleeve in the first direction through the conical surface.

5. The waterproof connector for an electrical device according to claim 3, characterized in that, The plug-in end is cylindrical. There are multiple jacks, and the multiple jacks are arranged around the circumferential direction of the plug-in end. Each jack penetrates the side wall of the plug-in end along the radial direction of the plug-in end. There are multiple plug boards, and each plug board corresponds to one jack.

6. The waterproof connector of an electrical device according to claim 5, characterized in that, A card slot is provided on the plug board. The card slot is located inside the plug-in end and is communicated with the groove. The card slot includes a first surface and a second surface arranged along the first direction. The second surface is closer to the fixing plate than the first surface, and the first surface gradually moves away from the fixing plate from the side close to the groove to the side far from the groove.

7. The waterproof connector for an electrical device according to claim 5, characterized in that, The clamping portion includes clamping plates and limiting blocks. There are multiple groups of clamping plates and multiple limiting blocks. The limiting blocks are arranged on the plug-in end. The clamping plates are slidably connected to the plug-in end along the first direction. The multiple groups of clamping plates and the multiple limiting blocks are alternately arranged in sequence around the circumferential direction of the plug-in end. Each jack is located between two adjacent limiting blocks. The number of clamping plates in each group is two, and all the clamping plates in the multiple groups of clamping plates are arranged around the circumferential direction of the plug-in end. The two clamping plates in each group are located on both sides of a plug board. The two mutually approaching surfaces of two adjacent limiting blocks are inclined surfaces, and the two inclined surfaces gradually approach each other from the side close to the fixing plate to the side far from the fixing plate. Each clamping plate is slidably connected to the inclined surface of a limiting block adjacent to it, and the two clamping plates in each group approach or move away from each other through the inclined surfaces.

8. The waterproof connector for an electrical device according to claim 7, characterized in that, There are two groups of clamping portions, one group is arranged on the outer peripheral surface of the plug-in end, and the other group is arranged on the inner peripheral surface of the plug-in end.

9. The waterproof connector for an electrical device according to claim 7, characterized in that, The fixed end further includes a guide post, a connecting plate, and an elastic member. One end of the guide post is arranged on the fixing plate. The connecting plate is slidably arranged on the guide post along the first direction. The clamping plate is connected to the connecting plate. The elastic member is arranged between the connecting plate and the fixing plate and is used to make the clamping plate contact the core before the plug board contacts the core on the plug-in end.

10. The waterproof connector for an electrical device according to claim 1, characterized in that, Reinforcing ribs are provided on the plug board, and the reinforcing ribs extend along the first direction.

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