Shielding sleeve and connector
By using a combination structure of bent sheets and insulating shells in the shielding sleeve, the problem of easy separation of the joint seam is solved, achieving stable electromagnetic shielding in high-frequency vibration environments and low-cost production.
Patent Information
- Application Number
- CN202422880391.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing shielding sleeves are prone to separation at the joints under high-frequency vibration environments, which leads to a decrease in electromagnetic shielding effectiveness, increases electromagnetic interference to surrounding electronic components, and increases production costs due to the welding process.
The shielding sleeve structure adopts no welding joints. It is connected to the enclosure wall through the supporting part of the bent piece, the supporting part presses against the insulating shell, and the pressure block applies pressure to the joint to form a stable connection and prevent the joint from separating.
It improves the reliability of the joint connection, reduces production costs, and enhances the electromagnetic interference shielding effect, ensuring the stability of signal and current transmission.
Smart Images
Figure CN223567029U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to shielding sleeve and connector technical field, in particular to a kind of shielding sleeve and connector of improving electromagnetic shielding effect. BACKGROUND
[0002] Connector is used to transmit signal or current, when transmitting large current, it will generate large electromagnetic interference to surrounding other electronic components, and when transmitting signal, the electromagnetic interference from outside will also affect the transmission quality of signal. In order to ensure the signal transmission quality of connector itself or ensure the normal work of surrounding electronic components, a shielding sleeve is usually arranged in the insulating shell of high-voltage connector, which is arranged outside each terminal to shield the influence of external electromagnetic interference on terminal signal transmission, and also can shield the electromagnetic interference of terminal to surrounding electronic components when transmitting current.
[0003] The processing method of the existing shielding sleeve usually adopts the following method: first, a plate is bent, the two side edges of the plate are butted and spliced to form a joint, and then the joint is welded and fixed by spot welding, or a clamping structure that can be mutually buckled is arranged on the two side edges of the plate to be fixed. The processing method of the shielding sleeve by spot welding the joint needs to increase the welding process, which leads to the increase of the production cost of the shielding sleeve. In addition, the joint of the shielding sleeve is buckled and clamped by the mutually buckled clamping structure. Since the internal stress of the shielding sleeve plate is outwardly opened after being bent into a shielding sleeve, and the connector is applied in a high-frequency vibration environment, such as electric vehicles, etc., the position where the two side edges of the joint are buckled and clamped is separated, so that the shielding sleeve is opened, which leads to the decrease of the electromagnetic shielding effect of the shielding sleeve and affects the signal transmission quality of the connector. In addition, the electromagnetic interference outside also affects the normal use of surrounding electronic components. In summary, the existing shielding sleeve cannot realize reliable connection at the joint with low production cost.
[0004] Therefore, it is necessary to design an improved shielding sleeve and connector to overcome the above problems. CONTENT OF UTILITY MODEL
[0005] In view of the problems in the background art, the utility model aims to provide a shielding sleeve and connector, which can improve the connection reliability at the joint position without welding the joint, so as to avoid the separation and opening of the joint position, and further improve the stability of signal or current transmission and reduce the electromagnetic interference to surrounding electronic components.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical means:
[0007] A shielding sleeve is used to be installed in an insulating shell, the extension direction of the shielding sleeve is a first direction, and the shielding sleeve comprises:
[0008] A surrounding wall, the surrounding wall is provided with an inner cavity, the inner cavity is through the two ends of the surrounding wall along the first direction; the surrounding wall is provided with a joint seam on one side, and the other side of the surrounding wall is provided with an opening; the joint seam extends along the first direction, and the two side edges of the joint seam are combined along the second direction perpendicular to the first direction; the opening is communicated with the inner cavity, and a bending piece is integrally bent from one side edge of the opening to a direction away from the inner cavity; the bending piece comprises a supporting portion connected with the surrounding wall and a holding portion connecting the supporting portion, the supporting portion is bent and extends away from the inner cavity from one side edge of the opening, and the holding portion has a gap between the outer surface of the surrounding wall, and one end of the holding portion away from the supporting portion is suspended on the outer side of the surrounding wall, and the holding portion is used for pressing the insulating shell, so that the surrounding wall is subjected to the pressure in the direction of the inner cavity, and the two side edges of the joint seam are prevented from separating in the second direction.
[0009] In one of the embodiments, the number of the bending pieces is at least two, and the two bending pieces are arranged on the two sides of the joint seam in the second direction.
[0010] In one of the embodiments, one end of the surrounding wall in the first direction is an insertion end;
[0011] The supporting portion is bent and extends away from the insertion end from one side edge of the opening, the supporting portion is arched to the insertion end, and the holding portion extends away from the insertion end in the first direction from the supporting portion, and the projection of the holding portion in the second direction at least partially overlaps the outer surface of the surrounding wall.
[0012] In one of the embodiments, one end of the surrounding wall in the first direction is an insertion end;
[0013] The supporting portion is bent and extends away from the insertion end from one side edge of the opening, the supporting portion is arched to the insertion end, and the holding portion extends away from the insertion end in the first direction from the supporting portion, and the projection of the holding portion in the second direction at least partially overlaps the outer surface of the surrounding wall.
[0014] A connector, comprising:
[0015] An insulating shell, the insulating shell comprises an outer shell, an inner shell and a connecting block connecting the outer shell and the inner shell; the outer shell is arranged on the outer side of the inner shell, and the connecting block is located between the outer shell and the inner shell;
[0016] A terminal assembly is inserted into the inner housing; and
[0017] The shielding sleeve is mounted between the outer housing and the inner housing, an inner cavity of the shielding sleeve contains the inner housing, and a bent piece of the shielding sleeve abuts against an inner side wall of the outer housing;
[0018] The inner side wall of the outer housing protrudes a pressing block, the pressing block is arranged in a staggered manner with the bent piece, the pressing block abuts against an outer surface of a surrounding wall of the shielding sleeve, and an insertion end of the surrounding wall is inserted between the outer housing and the inner housing in a first direction.
[0019] In one embodiment, the surrounding wall includes two first side plates and two second side plates, the two second side plates are arranged in a second direction, the two first side plates are arranged in a third direction perpendicular to a common plane of the first direction and the second direction, and the two first side plates and the two second side plates are alternately connected in sequence, so that the surrounding wall has a rectangular ring structure.
[0020] The bent piece has two bent pieces arranged on the two second side plates in a staggered manner, and the number of the pressing blocks is at least two, and the two pressing blocks abut against the two first side plates in a staggered manner.
[0021] In one embodiment, a joint seam of the surrounding wall is arranged on one of the first side plates, at least two convex blocks are arranged at two side edges of the joint seam respectively, and the pressing blocks have convex ribs abutting against the joint seam.
[0022] The two convex blocks are respectively located on two sides of the convex ribs in the second direction, and the convex ribs are used to stop the convex blocks in the second direction.
[0023] In one embodiment, the first side plate is provided with a first rolled edge at the insertion end, the first rolled edge is arc-shaped and rolled up from an edge of the first side plate away from the inner cavity, the second side plate is provided with a second rolled edge at the insertion end, and the second rolled edge is arc-shaped and rolled up from an edge of the second side plate away from the inner cavity.
[0024] The outer housing is provided with a plurality of avoidance openings corresponding to the first rolled edge and the second rolled edge, and the first rolled edge and the second rolled edge are partially contained in the avoidance openings corresponding thereto.
[0025] The terminal assembly comprises a power terminal, a cable connected with the power terminal and a connecting ring sleeved outside the cable; the power terminal is inserted into the inner shell, and the connecting ring is pressed outside the shielding layer of the cable; one end of the surrounding wall away from the first curling edge is provided with a contact piece, and the contact piece is pressed against the connecting ring; in a first direction, the first curling edge is closer to the butt joint end of the insulating shell than the power terminal, and the power terminal is closer to the butt joint end of the insulating shell than the bending piece.
[0026] In one of the embodiments, two first curling edges are arranged on the same first side plate, and a first groove is arranged between the two first curling edges; two second curling edges are arranged on the same second side plate, and a second groove is arranged between the two second curling edges.
[0027] The first groove is arranged at a position corresponding to the arrangement position of the pressing block; and inclined guide surfaces are arranged on both sides of the first groove, and the distances between the two inclined guide surfaces and the insertion end gradually decrease in a direction away from the insertion end.
[0028] In one of the embodiments, a notch is arranged on the surrounding wall; the notch is recessed in a first direction from the insertion end of the surrounding wall, and the notch is arranged at a position corresponding to the arrangement position of the connecting block; the connecting block and the notch are matched with each other, and the connecting block stops the displacement of the shielding sleeve.
[0029] A clamping arm is arranged on the surrounding wall, and the clamping arm is inclined and extended in a direction away from the insertion end of the surrounding wall; a clamping groove is arranged on the outer side wall of the inner shell, and the clamping groove is recessed and arranged at a position corresponding to the arrangement position of the clamping arm; and one end of the clamping arm away from the surrounding wall is pressed against an inner wall surface of the clamping groove in a first direction, so as to stop the displacement of the shielding sleeve.
[0030] In a first direction, the distance between the clamping arm and the insertion end is greater than the recess depth of the notch.
[0031] Compared with the prior art, the utility model has the following beneficial effects:
[0032] 1. The supporting part of the bending piece is connected with the surrounding wall, and the resisting part is pressed on the insulating shell, so that the reaction force of the insulating shell to the bending piece is conducted to the surrounding wall, thereby offsetting the stress of the surrounding wall opening outward, improving the connection reliability of the two side edges of the joint seam through the structure of the shielding sleeve itself, preventing the two side edges of the joint seam from separating and opening, without additional welding process, thereby saving process and reducing processing cost, and at the same time, the connection reliability of the two side edges of the joint seam is improved, and the shielding sleeve is applied to the connector to shield external electromagnetic interference to improve the stability of signal transmission, and also to reduce electromagnetic interference to external surrounding electronic elements.
[0033] 2. The bending pieces are arranged on the two sides of the joint seam to ensure that the pressure applied by the bending pieces to the surrounding wall is more uniform, thereby balancing the pressure borne by the two side edges of the joint seam, improving the butt splicing effect at the joint seam, further avoiding the separation and opening of the two side edges of the joint seam, and ensuring the shielding reliability of the shielding sleeve to electromagnetic interference.
[0034] 3. The supporting part is arranged in an arc shape, and the supporting part is arched towards the insertion end of the surrounding wall, so that the shielding sleeve is smoother during insertion into the insulating shell, avoiding the generation of debris between the bending piece and the inner wall of the insulating shell due to scratching, and the metal debris generated by the bending piece may cause breakdown or short circuit between terminals, and the insulating debris generated by the insulating shell may affect the signal or current transmission performance of the terminal, so by arranging the supporting part in a semicircular arc shape arched towards the insertion end, the assembly is more convenient, and the generation of debris due to scratching during assembly is avoided, ensuring the stability of signal or current transmission. Moreover, the supporting part is arranged in an arc shape, so that the resisting part is folded on the outside of the surrounding wall, the projection of the resisting part in the second direction at least partially overlaps the outer surface of the surrounding wall, the supporting structure of the bending piece is more stable, the bearing strength of the bending piece is greater, and the limiting pressure applied to the surrounding wall is greater, which can better avoid the separation and opening of the two side edges of the joint seam, and improve the stability of the shielding sleeve to electromagnetic interference shielding.
[0035] 4. By setting the first bending section and the second bending section, the first bending section is bent and extends from the edge of the opening to the direction away from the inner cavity, and the second bending section is bent and extends from the first bending section to the direction away from the insertion end, so that a bidirectional bending structure is formed by the first bending section and the second bending section, which ensures that the supporting part can elastically support the bearing part, and then the supporting part can absorb the impact load from the outside by means of elastic deformation, thereby reducing the influence of the impact load from the outside on the surrounding wall, further avoiding the separation and opening of the two side edges of the joint seam on the surrounding wall, improving the reliability of the shielding sleeve for electromagnetic interference shielding, and the elastic deformation amount of the supporting part can effectively absorb the assembly tolerance, thereby reducing the processing precision requirement of the part, and further reducing the processing cost. By setting the supporting part on one side of the opening close to the insertion end, the supporting part does not fold the bearing part, so that the bending piece can be directly processed and formed into the first bending section and the second bending section by one-stroke stamping and bending, which can maximize the reduction of the processing procedure of the bending piece, and further reduce the processing cost of the shielding sleeve.
[0036] 5. By setting the pressing block on the outer shell to press the outside of the surrounding wall, the reaction force of the insulating shell on the bending piece and the pressure of the pressing block jointly act on the surrounding wall, and the pressing block and the bending piece jointly act to further offset the stress of the surrounding wall opening outward, thereby avoiding the separation and opening of the two side edges of the joint seam, and improving the stability of shielding electromagnetic interference.
[0037] 6. By setting the first side plate and the second side plate to form a rectangular ring structure, the reaction force of the insulating shell on the bending piece is transmitted to the second side plate, and the pressing block applies pressure to the first side plate, so that the surrounding wall can offset the stress of opening outward at multiple angles and in all directions, thereby further avoiding the separation and opening of the two side edges of the joint seam, and improving the stability of shielding electromagnetic interference.
[0038] 7. By setting the joint seam on the first side plate and directly pressing the joint seam by the pressing block, the pressing block directly applies inward pressure to the position of the joint seam, thereby reducing the outward tension at the position of the two side edges of the joint seam, and the pressing block directly pressing the position of the joint seam is more direct and effective, thereby reducing the possibility of the separation and opening of the two side edges of the joint seam, and further improving the stability of shielding electromagnetic interference. Furthermore, a plurality of convex blocks are arranged on the two side edges of the joint seam, and each convex block is arranged on the two sides of the pressing block in the second direction, so that even if the two side edges of the joint seam are separated and opened, the convex blocks on the two sides will be held by the side surface of the pressing block in the second direction, and the opening angle of the two side edges of the joint seam is controlled by the pressing block to avoid the complete explosion of the shielding sleeve, thereby ensuring the stability of shielding electromagnetic interference.
[0039] 8、By setting the first and second edges, avoid the first and second side plate and the insulating shell during installation insertion process, avoid the scratch and produce debris, ensure the stability of the terminal assembly to the current transmission. And through the first edge in the first direction compared to the power terminal closer to the butt end of the insulating shell, ensure that the connector in the with the outside of the adapter plug mutual plug, the first edge will be prior to the power terminal guide the adapter plug, and then play a role in the direction of the adapter plug, avoid the scratch and produce debris with the adapter plug. Especially in the transmission of current, by the shielding sleeve and the contact ring, reduce the influence of the terminal assembly in the transport of large current on the surrounding electrical elements, and then ensure that the large current transmission can be carried out.
[0040] 9、By setting the first and second edges, avoid the first and second side plate and the insulating shell during installation insertion process, avoid the scratch and produce debris, ensure the stability of the terminal assembly to the current transmission. And through the first edge in the first direction compared to the power terminal closer to the butt end of the insulating shell, ensure that the connector in the with the outside of the adapter plug mutual plug, the first edge will be prior to the power terminal guide the adapter plug, and then play a role in the direction of the adapter plug, avoid the scratch and produce debris with the adapter plug. Especially in the transmission of current, by the shielding sleeve and the contact ring, reduce the influence of the terminal assembly in the transport of large current on the surrounding electrical elements, and then ensure that the large current transmission can be carried out.
[0041] 10、The gap and the clamping arm cooperate to block the shielding sleeve in the first direction, the recess depth of the gap is smaller than the distance between the clamping arm and the insertion end, so that the position of the clamping arm connected to the surrounding wall and the gap are staggered in the first direction. This has the advantage that the gap in the surrounding wall will result in a decrease in the hardness of the corresponding area, while the area of the surrounding wall without the gap remains rectangular ring with high hardness. By staggering the clamping arm and the gap, the clamping arm is ensured to be in the area with high hardness of the surrounding wall, thereby preventing the clamping arm from being pulled out of the clamping groove, and improving the reliability of the gap and the clamping arm cooperating to block the shielding sleeve in both directions.
DRAWINGS
[0042] Figure 1 The structure diagram of the connector of the first embodiment of the utility model;
[0043] Figure 2 The structure diagram of the connector of the first embodiment of the utility model; Figure 1 The cross-sectional view of the connector;
[0044] Figure 3 The structure diagram of the connector of the first embodiment of the utility model; Figure 2 The enlarged view of the circle A part in the structure diagram of the connector of the first embodiment of the utility model;
[0045] Figure 4 The structure diagram of the connector of the first embodiment of the utility model; Figure 1Fig. 6 is a cross-sectional view of the connector from another angle;
[0046] Figure 5 Fig. 5 is an enlarged view of the portion in circle B in Fig. 6; Figure 4
[0047] Figure 6 Fig. 4 is a structural view of the connector from another angle; Figure 1
[0048] Figure 7 Fig. 3 is a structural view of the shield sleeve; Figure 1
[0049] Fig. 2 is a cross-sectional view of the connector according to the second embodiment of the present application; Figure 8
[0050] Fig. 1 is an enlarged view of the portion in circle C in Fig. 2; Figure 9 Figure 8 Fig. 1 is an enlarged view of the portion in circle C in Fig. 2;
[0051] Figure 10 Figure 8 Fig. 1 is an enlarged view of the portion in circle C in Fig. 2;
[0052] Figure 11 Fig. 1 is an enlarged view of the portion in circle C in Fig. 2; Figure 10
[0053] Fig. 1 is an enlarged view of the portion in circle C in Fig. 2; Figure 12 Figure 8 Fig. 1 is an enlarged view of the portion in circle C in Fig. 2.
[0054] Explanation of Reference Numerals in the Embodiments:
[0055] 100, connector 1, insulating shell 11, outer shell body 111, pressing block 115, avoiding position opening 12, inner shell body 121, clamping groove 13, engaging block 2, terminal assembly 21, power terminal 22, cable 23, connecting ring 3, shielding sleeve 31, surrounding wall 311, first side plate 312, first hem 313, first groove 314, inclined guide surface 315, second side plate 316, second hem 317, second groove 32, bending piece 321, supporting part 322, abutting part 33, clamping arm 34, opening 35, engaging seam 36, inner cavity 37, insertion end 38, notch 39, contact piece Second embodiment 111a, pressing block 112, protruding rib 32a, bending piece 321a, supporting part 322a, abutting part 325, first bending section 326, second bending section 35a, engaging seam 355, convex block
Specific Embodiments
[0056] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the present application. Accordingly, the present application is not intended to be limited by the
[0057] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0058] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0059] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0060] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0061] It is to be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or intervening elements can be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element, or intervening elements can be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions as used herein are for illustrative purposes only and are not meant to be limiting.
[0062] It is to be noted that according to Figures 1 to 12 As shown in the drawings, the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other in the embodiment of the present application. For the purpose of illustration, the first direction is defined as the X-axis direction, the second direction is defined as the Y-axis direction, and the third direction is defined as the Z-axis direction. In the embodiment, the X-axis direction and the Y-axis direction are coplanar and perpendicular to each other, and the Z-axis direction is perpendicular to the common plane of the X-axis and the Y-axis. The first direction, the second direction and the third direction are perpendicular to each other. It is further explained that the term "perpendicular" in the present application not only includes the case of absolute perpendicularity, but also includes the case of approximate perpendicularity as generally recognized in engineering, for example, "perpendicular" means that the angle between a straight line and a straight line, a straight line and a plane, or a plane and a plane is 89° to 91°. The equal distance or the equal angle not only includes the case of absolute equality, but also includes the case of approximate equality as generally recognized in engineering, that is, there can be a certain error, for example, the tolerance range is -1% to 1%.
[0063] Please refer to Figures 1 to 7For the first embodiment of the utility model shield sleeve 3, shield sleeve 3 is used for installing in insulating shell 1, the extension direction of shield sleeve 3 is the first direction, the extension direction of shield sleeve 3 here can also be understood as the axial direction of shield sleeve 3, correspondingly the radial direction of shield sleeve 3 is the second direction.The shield sleeve 3 includes the surrounding wall 31.The surrounding wall 31 is surrounded and forms an inner cavity 36, the inner cavity 36 is along the first direction and penetrates the both ends of surrounding wall 31, realizes the electromagnetic shielding effect of shield sleeve 3 in the area of inner cavity 36 by surrounding the outside of inner cavity 36 surrounded by surrounding wall 31, shields the electromagnetic interference of the signal transmission in inner cavity 36 to the outside, also can reduce the electromagnetic interference of signal transmission in inner cavity 36 to the outside surrounding electronic element.The one side of surrounding wall 31 is provided with joint seam 35, and the other side of surrounding wall 31 is provided with aperture 34.The joint seam 35 extends along the first direction, and the two side edges of joint seam 35 are combined along a second direction perpendicular to the first direction;The aperture 34 is communicated with the inner cavity 36, and the bending piece 32 is integrally bent from the side edge of aperture 34 towards the direction away from the inner cavity 36.The surrounding wall 31 is bent and formed by a plate-shaped piece, the joint seam 35 is the interface position of bending, and the two side edges of the plate-shaped piece after bending are the edges of joint seam 35, to avoid the two side edges of joint seam 35 to separate and open to ensure that the surrounding wall 31 is surrounded outside the inner cavity 36, and further ensure the shielding effect of shield sleeve 3 to electromagnetic interference.The bending piece 32 includes the supporting part 321 and the abutting part 322 connected with the supporting part 321, the supporting part 321 is connected with the surrounding wall 31, and the supporting part 321 is bent and extended from the side edge of aperture 34 towards the direction away from the inner cavity 36, and the abutting part 322 has a gap between the outer surface of surrounding wall 31, the abutting part 322 is arranged at the end of supporting part 321 away from surrounding wall 31, and the end of abutting part 322 away from supporting part 321 is suspended outside the surrounding wall 31, and the abutting part 322 is used to abut against insulating shell 1, so that the surrounding wall 31 is subjected to the pressure towards the inner cavity 36 direction, to avoid the two side edges of joint seam 35 to separate in the second direction.The pressure applied by bending piece 32 to surrounding wall 31 can reduce the stress of outward expansion of surrounding wall 31, improve the bearing strength of the two side edges of joint seam 35, realize the connection reliability of the two side edges of joint seam 35 by the structure of shield sleeve 3 itself, to prevent the two side edges of joint seam 35 from separating and opening, do not need additional welding process, further save the process and reduce the processing cost, and simultaneously realize the connection reliability of the two side edges of joint seam 35, ensure the stability of electromagnetic interference shielding.
[0064] Further, the surrounding wall 31 comprises two first side plates 311 oppositely arranged and two second side plates 315 oppositely arranged in the second direction, and the two first side plates 311 are oppositely arranged in a third direction perpendicular to the common plane of the first direction and the second direction. The two first side plates 311 and the two second side plates 315 are alternately connected in sequence, so that the surrounding wall 31 has a rectangular ring structure. In this embodiment, the bending pieces 32 are oppositely arranged on the two second side plates 315, so that the bending pieces 32 apply opposite pressure to the surrounding wall 31 from the opposite sides, ensuring that the pressure applied by the bending pieces 32 to the surrounding wall 31 is more balanced, and improving the connection reliability of the two side edges of the joint seam 35. Specifically, the joint seam 35 of the surrounding wall 31 is arranged on one of the first side plates 311, and the number of the bending pieces 32 is two, and the two bending pieces 32 are oppositely arranged on the two second side plates 315 on the two sides of the joint seam 35, i.e., the two second side plates 315 are oppositely arranged on the two sides of the surrounding wall 31 in the second direction, and the two bending pieces 32 are arranged on the two second side plates 315, respectively. Understandably, the number of the bending pieces 32 can also be four, six, or eight, etc., and the specific number of the bending pieces 32 is not limited here, as long as the number of the bending pieces 32 is even, so that the arrangement positions of the bending pieces 32 on the two second side plates 315 correspond to each other, and then the pressure applied by each bending piece 32 to the surrounding wall 31 is evenly distributed.
[0065] Further, the surrounding wall 31 has an insertion end 37 at one end in the first direction, and the insertion end 37 means that when the shielding sleeve 3 is assembled with the insulating shell 1, the insertion end 37 is first inserted into the insulating shell 1, and after the insertion end 37 is inserted into the insulating shell 1, the shielding sleeve 3 is moved along the first direction until the shielding sleeve 3 is accommodated in the insulating shell 1, so as to complete the assembly of the shielding sleeve 3 and the insulating shell 1; that is, the insertion end 37 is the end of the shielding sleeve 3 that is first inserted into the insulating shell 1 during assembly, and the first direction is the assembly direction of the shielding sleeve 3 inserted into the insulating shell 1.
[0066] Further, the opening 34 is in communication with the inner and outer sides of the surrounding wall 31, and the bending piece 32 is correspondingly arranged at the edge of the opening 34. In the embodiment, the supporting part 321 is bent and extends from the edge of the opening 34 away from the insertion end 37, the supporting part 321 is in an arc shape and arches towards the insertion end 37, and the abutting part 322 extends from the supporting part 321 in a first direction away from the insertion end 37, and the projection of the abutting part 322 in a second direction at least partially overlaps the outer surface of the surrounding wall 31. By arranging the supporting part 321 in an arc shape, the supporting part 321 suspends the abutting part 322 folded by nearly one hundred and eighty degrees outside the surrounding wall 31, at this time the supporting part 321 supports between the abutting part 322 and the surrounding wall 31 by the arc shape of the supporting part 321, and the projection of the abutting part 322 in the second direction at least partially overlaps the outer surface of the surrounding wall 31 by the folding, the support structure of the bending piece 32 is more stable, the bearing strength of the bending piece 32 is greater, and the limit pressure that the bending piece 32 can exert on the surrounding wall 31 is greater, thereby better avoiding the two side edges of the joint seam 35 from separating and opening, improving the connection reliability of the two side edges of the joint seam 35. Moreover, by arching the arc shape of the supporting part 321 towards the insertion end 37, the scratching between the bending piece 32 and the insulating shell 1 during the assembly of the shielding sleeve 3 and the insulating shell 1 is effectively reduced, thereby avoiding the generation of debris due to scratching, and the metal debris generated by the bending piece 32 can cause breakdown or short circuit between terminals, and the insulating debris generated by the insulating shell 1 can affect the signal or current transmission performance of the terminal, so by arranging the supporting part 321 in an arc shape arching towards the insertion end 37, the generation of debris during assembly is effectively avoided, and the stability of signal or current transmission is ensured.
[0067] Please refer again to Figures 1 to 7The utility model also provides a kind of connector 100, including insulating shell 1, terminal assembly 2 and above-mentioned shield sleeve 3.The insulating shell 1 includes shell body 11, inner shell 12, the link block 13 of connecting shell body 11 and inner shell 12.The shell body 11 is arranged at the outside of insulating shell 1, the shell body 11 is arranged around the outside of inner shell 12, the inner shell 12 is used to install fixed for terminal assembly 2, the link block 13 is between shell body 11 and inner shell 12, to relatively fixed shell body 11 and inner shell 12.The terminal assembly 2 is inserted into inner shell 12, and terminal assembly 2 is used to transmit signal or current.The shield sleeve 3 is installed between shell body 11 and inner shell 12, and the inner cavity 36 of shield sleeve 3 contains inner shell 12, to ensure that shield sleeve 3 is shielded electromagnetic interference to terminal assembly 2 inserted into inner shell 12, improve the stability of terminal assembly 2 to signal or current transmission, can also reduce the interference of terminal assembly 2 to external surrounding electronic components in the process of signal or current transmission;The bending piece 32 of shield sleeve 3 is in abutment with the inner side wall of shell body 11, and bending piece 32 transmits the pressure of shell body 11 to surrounding wall 31, to improve the connection reliability of the two side edges of joint seam 35 of surrounding wall 31, prevent the two side edges of joint seam 35 from separating and opening, ensure the stability of electromagnetic interference shielding of shield sleeve 3.Wherein, the inner side wall of shell body 11 is protruded with pressing block 111, and pressing block 111 is misaligned with bending piece 32, and pressing block 111 is pressed on the outside of surrounding wall 31 of shield sleeve 3, and the insertion end 37 of surrounding wall 31 is inserted between shell body 11 and inner shell 12 in first direction.Shell body 11 directly exerts pressure on surrounding wall 31 by pressing block 111, so that pressing block 111 and bending piece 32 jointly exert pressure on surrounding wall 31 in the direction of inner cavity 36, ensure that shield sleeve 3 has certain impact load absorption performance while also ensuring the connection reliability of the two side edges of joint seam 35, ensure the stability of electromagnetic interference shielding.
[0068] Further, the outer shell 11, the inner shell 12 and the connecting block 13 are integrated structure, the insulating shell 1 is made by integrated injection molding. The number of the pressing blocks 111 is two, the bending pieces 32 are arranged on the second side plates 315 on the two sides of the rectangular surrounding wall 31 in the second direction, and each pressing block 111 is arranged on the first side plate 311 on the two sides, so as to ensure that the pressing blocks 111 and the bending pieces 32 apply omnidirectional pressure to the rectangular surrounding wall 31, and improve the connection reliability of the two side edges of the joint seam 35 of the surrounding wall 31. In the embodiment, the joint seam 35 of the surrounding wall 31 is arranged on one of the side plates, and at least one pressing block 111 is arranged on the joint seam 35, so as to ensure that the connection strength of the two side edges of the joint seam 35 is maximized. It can be understood that the number of the pressing blocks 111 can be greater than two, and the specific number of the pressing blocks 111 is not limited here. The pressing blocks 111 can be arranged on the inner side wall of the outer shell 11 at intervals, so as to ensure that the pressing blocks 111 press the first side plates 311 on the two sides of the surrounding wall 31, and then ensure that the surrounding wall 31 bears omnidirectional pressure.
[0069] Please refer to Figures 1 to 7 Further, the terminal assembly 2 is inserted into the inner shell 12, and the terminal assembly 2 is electrically connected with the terminals in the mating plug when the connector 100 is connected with the mating plug, so as to ensure the transmission of signals or currents. It can be understood that the terminal assembly 2 can be a wire terminal of a wire cable, or a board terminal of a wire board, which can be selected according to actual use requirements. The number of the terminal assemblies 2 is multiple, and each terminal assembly 2 is arranged in parallel in the inner shell 12. The specific number of the terminal assemblies 2 is not limited here, and users can select according to actual design requirements, so as to ensure that the terminal assemblies 2 can transmit signals or currents.
[0070] Further, the first side plate 311 is provided with a first curled edge 312 at the insertion end 37, and the second side plate 315 is provided with a second curled edge 316 at the insertion end 37. The first curled edge 312 is curled away from the inner cavity 36 from the edge of the first side plate 311, and the first curled edge 312 makes the first side plate 311 have an arc structure at the insertion end 37, thereby avoiding the first side plate 311 and the insulating shell 1 from scratching each other during assembly to generate debris. The second curled edge 316 is curled away from the inner cavity 36 from the edge of the second side plate 315, and the second curled edge 316 has the same effect as the first curled edge 312, and the arc structure prevents the second side plate 315 and the insulating shell 1 from scratching each other during assembly to generate debris, thereby ensuring the stability of the terminal assembly 2 in signal or current transmission. In this embodiment, the terminal assembly 2 includes a power terminal 21, a cable 22 connected to the power terminal 21, and a connecting ring 23 sleeved outside the cable 22; the power terminal 21 is inserted into the inner shell 12, the connecting ring 23 is pressed against the outside of the shielding layer of the cable 22; the surrounding wall 31 is provided with a contact piece 39 at one end away from the first curled edge 312, and the contact piece 39 is pressed against the connecting ring 23. In the first direction, the first curled edge 312 is closer to the mating end of the insulating shell 1 than the power terminal 21, and the power terminal 21 is closer to the mating end of the insulating shell 1 than the bent piece 32; here, the mating end of the insulating shell 1 refers to the end of the insulating shell into which the mating plug is inserted when the connector 100 is connected to the mating plug. The power terminal 21 is arranged on the side of the first curled edge 312 close to the contact piece 39, and the power terminal 21 is arranged on the side of the bent piece 32 away from the contact piece 39.
[0071] Furthermore, two first rolled edges 312 are provided, with a first groove 313 between the two first rolled edges 312. Two second rolled edges 316 are provided, with a second groove 317 between the two second rolled edges 316. Compared to the scheme where a single first rolled edge 312 is provided on the first side plate 311 and a single second rolled edge 316 is provided on the second side plate 315, the first groove 313 and the second groove 317 effectively reduce the hardness of the first rolled edges 312 and the second rolled edges 316. This makes it easier for the first rolled edges 312 and the second rolled edges 316 to deform when in contact with the insulating shell 1 during insertion, thereby reducing the contact stress between the insertion end 37 of the shielding sleeve 3 and the insulating shell 1 during insertion, and further preventing the generation of debris. In this embodiment, the outer shell 11 has multiple clearance openings 115. The recess 115 extends from the inner wall of the outer shell 11 away from the inner shell 12. Multiple recesses 115 are provided, and the positions of each recess 115 correspond to the positions of the first rolled edge 312 and the second rolled edge 316. The first rolled edge 312 and the second rolled edge 316 are partially accommodated in their respective recesses 115. After the shielding sleeve 3 and the insulating shell 1 are assembled, the positions of the first rolled edge 312 and the second rolled edge 316 in the first direction correspond to the positions of the recesses 115 in the first direction. This ensures that when the connector 100 is subjected to impact load during use, the first rolled edge 312 and the second rolled edge 316 will not rub against the insulating shell 1 when vibrating, thereby avoiding the generation of debris and further ensuring the stability of signal or current transmission of the terminal assembly 2.
[0072] Furthermore, the first groove 313 is positioned corresponding to the pressure block 111 to ensure that during assembly, when the shielding sleeve 3 is inserted into the insulating shell 1, the pressure block 111 passes through the first groove 313, preventing the pressure block 111 from rubbing against the first rolled edge 312. In this embodiment, inclined guide surfaces 314 are provided on both sides of the first groove 313. The distance between the inclined guide surfaces 314 on both sides gradually decreases from the direction near the insertion end 37 to the direction away from the insertion end 37. By providing inclined guide surfaces 314 on both sides of the first groove 313, the width of the opening of the first groove 313 is greater than the width of the bottom of the first groove 313. Therefore, during the insertion of the shielding sleeve 3 into the insulating shell 1, the pressure block 111 can be inserted more easily from the opening of the first groove 313, thereby improving the assembly efficiency between the shielding sleeve 3 and the insulating shell 1.
[0073] Further, the surrounding wall 31 is provided with a notch 38. The notch 38 is recessed from the insertion end 37 of the surrounding wall 31 along the first direction, and the notch 38 is arranged at a position corresponding to the arrangement position of the engaging block 13. During the insertion of the shielding sleeve 3 into the insulating shell 1, the engaging block 13 slides into the notch 38 until the engaging block 13 abuts against the bottom wall of the notch 38. The engaging block 13 cooperates with the notch 38, and the engaging block 13 stops the displacement of the shielding sleeve 3. The surrounding wall 31 is provided with a clamping arm 33. The clamping arm 33 extends from the surrounding wall 31 to the inner cavity 36 in a gradually away form from the insertion end 37, i.e., the clamping arm 33 extends from front to back to the inner cavity 36 in a gradually inwardly inclined manner, and the end of the clamping arm 33 away from the surrounding wall 31 is suspended in the inner cavity 36. The outer side wall of the inner shell 12 is provided with a clamping groove 121. The clamping groove 121 is a recess, and the arrangement position of the clamping groove 121 corresponds to the arrangement position of the clamping arm 33. During the insertion of the shielding sleeve 3 into the insulating shell 1, when the clamping groove 121 moves to the position of the clamping arm 33, the end of the clamping arm 33 away from the surrounding wall 31 abuts against the inner wall surface of the clamping groove 121 in the first direction to stop the displacement of the shielding sleeve 3. The engaging block 13 and the notch 38 stop and limit the advancing direction of the shielding sleeve 3 during the insertion into the insulating shell 1, the clamping arm 33 and the clamping groove 121 cooperate to stop and limit the retreating direction of the shielding sleeve 3 during the insertion into the insulating shell 1, and then the shielding sleeve 3 and the insulating shell 1 are bidirectionally stopped in the first direction to fix the shielding sleeve 3 in the insulating shell 1. In this embodiment, in the first direction, the distance between the clamping arm 33 and the insertion end 37 is greater than the recess depth of the notch 38, so that the position of the surrounding wall 31 connected by the clamping arm 33 and the notch 38 are distributed in front and back in the first direction. The clamping arm 33 is arranged in the area with high hardness of the surrounding wall 31, is not affected by the decrease of hardness of the surrounding wall 31 due to the notch 38, prevents the clamping arm 33 from being pulled out of the clamping groove 121, and improves the stability of the bidirectional stop of the shielding sleeve 3 and the insulating shell 1.
[0074] Please refer to Figures 8 to 12The difference between the second embodiment of the utility model and the connector 100 in the first embodiment is the structure of the pressing block 111a, the structure at the joint seam 35a and the structure of the bent piece 32a, and the rest of the structure is the same as in the first embodiment, which will not be repeated here. Specifically, at least two convex blocks 355 are arranged at the two side edges of the joint seam 35a respectively. The convex block 355 protrudes from the surrounding wall 31 away from the inner cavity 36, and each convex block 355 is arranged on the two sides of the pressing block 111a in the second direction at the joint seam 35a, that is, each convex block 355 is distributed on the two sides of the pressing block 111a in the second direction, and each convex block 355 is arranged in the first direction, and the convex block 355 is used to abut against the pressing block 111a when the two side edges of the joint seam 35a are separated, so as to block the two side edges of the joint seam 35a from moving away from each other in the second direction. By pressing the pressing block 111a at the joint seam 35a, the pressure of the pressing block 111a directly acts on the joint seam 35a, improving the reliability of the connection of the two side edges of the joint seam 35a; at the same time, by arranging the convex block 355 on the two sides of the pressing block 111a in the second direction, the function of safety is achieved, that is, when the two side edges of the joint seam 35a are separated and opened in the second direction, the convex block 355 will displace in the second direction until it abuts against the side wall of the pressing block 111a in the second direction, at this time, the pressing block 111a will block the movement of the two convex blocks 355 in the second direction, so as to prevent the two side edges of the joint seam 35a from being further separated and opened, avoid the shielding sleeve 3 from being completely opened, and ensure the stability of shielding electromagnetic interference. In this embodiment, the pressing block 111a is provided with a convex rib 112. The convex rib 112 is protruded on the side of the pressing block 111a close to the shielding sleeve 3, the convex rib 112 is pressed at the joint seam 35a of the shielding sleeve 3 in the third direction, each convex block 355 is arranged on the two sides of the convex rib 112 in the second direction, the side of the convex rib 112 close to the shielding sleeve 3 is in arc shape structure, and the convex rib 112 is used to block the convex block 355 in the second direction. By arranging the convex rib 112, the side of the pressing block 111a is in arc shape structure, and the arc-shaped convex rib 112 can be more easily inserted between the convex blocks 355, so that the assembly is more convenient and fast.
[0075] Further, in the second embodiment, the supporting portion 321a is bent and extends from the side edge of the opening 34 close to the insertion end 37, and is inclined and extends away from the insertion end 37 along the direction from the inner side to the outer side of the surrounding wall 31, and the abutting portion 322a extends from the supporting portion 321a in the direction away from the insertion end 37 along the first direction. In this embodiment, the supporting portion 321a includes a first bent section 325 and a second bent section 326. The first bent section 325 is bent and extends in an arc shape from the edge of the opening 34 away from the inner cavity 36, the second bent section 326 is connected to one end of the first bent section 325 away from the surrounding wall 31, and the second bent section 326 is bent and extends in an arc shape from the first bent section 325 away from the insertion end 37, and the abutting portion 322a is connected to one end of the second bent section 326 away from the first bent section 325, so that the supporting portion 321a forms a two-way bent structure to be elastically supported between the surrounding wall 31 and the abutting portion 322a. In this embodiment, since the supporting portion 321a does not fold the abutting portion 322a, but directly supports the abutting portion 322a outside the surrounding wall 31 in an inclined posture, the structural shape of the bending piece 32a can be formed by a one-time stamping and bending process, without the need for other forming processes, thereby maximizing the reduction of the processing procedures of the bending piece 32a, and further reducing the processing cost of the shielding sleeve 3. And the first bent section 325 and the second bent section 326 make the supporting portion 321a form a two-way bent structure, which ensures that the supporting portion 321a can be elastically supported between the abutting portion 322a and the surrounding wall 31, and further the supporting portion 321a can absorb the impact load from the outside by its elastic deformation, reduce the influence of the impact load from the outside on the surrounding wall 31, further avoid the separation and opening of the two side edges of the joint seam 35 on the surrounding wall 31, improve the reliability of electromagnetic interference shielding, and the elastic deformation of the supporting portion 321a can effectively absorb the assembly tolerance, reduce the processing precision requirement of the parts, and further reduce the processing cost.
[0076] In summary, the shielding sleeve 3 and the connector 100 provided by the present application have the following beneficial effects compared with the prior art:
[0077] 1. The supporting portion 321 of the bending piece 32 is connected with the surrounding wall 31, and the abutting portion 322 is abutted on the insulating shell 1, so that the reaction force of the insulating shell 1 on the bending piece 32 is transmitted to the surrounding wall 31, thereby offsetting the stress of the outward opening of the surrounding wall 31, improving the connection reliability of the two side edges of the joint seam 35 through the structure of the shielding sleeve 3, preventing the separation and opening of the two side edges of the joint seam 35, without the need for additional welding process, thereby saving process and reducing processing cost, while improving the connection reliability of the two side edges of the joint seam 35, and applying the above shielding sleeve 3 to the connector 100 can shield external electromagnetic interference to improve the stability of signal transmission, and also can reduce electromagnetic interference on surrounding electronic elements.
[0078] 2. By oppositely arranging the bending piece 32 on both sides of the joint seam 35, the pressure applied by the bending piece 32 to the surrounding wall 31 is more evenly distributed, thereby balancing the pressure on the two side edges of the joint seam 35, improving the butt splicing effect of the two side edges of the joint seam 35, further avoiding the separation and opening of the two side edges of the joint seam 35, and ensuring the shielding reliability of the shielding sleeve 3 to electromagnetic interference.
[0079] 3. By setting the supporting part 321 as an arc-shaped elastic structure and arching the supporting part 321 towards the insertion end 37 of the surrounding wall 31, the shielding sleeve 3 is smoother during insertion into the insulating shell 1, avoiding the generation of debris between the bending piece 32 and the inner wall of the insulating shell 1 due to scratching. Metal debris generated by the bending piece 32 can cause breakdown or short circuit between terminals, while insulating debris generated by the insulating shell 1 can affect the signal or current transmission performance of the terminal. Therefore, by setting the supporting part 321 as a semicircular arc shape arching towards the insertion end 37, the assembly is more convenient, while avoiding the generation of debris due to scratching during assembly, ensuring the stability of signal or current transmission. Moreover, setting the supporting part 321 as an arc-shaped structure makes the abutting part 322 fold on the outside of the surrounding wall 31, and the projection of the abutting part 322 in the second direction at least partially overlaps the outer surface of the surrounding wall 31. The supporting structure of the bending piece 32 is more stable, making the bearing strength of the bending piece 32 greater, thereby exerting greater limit pressure on the surrounding wall 31, which can better avoid the separation and opening of the two side edges of the joint seam 35, improving the stability of the shielding sleeve 3 in shielding electromagnetic interference.
[0080] 4. By setting the first bending section 325 and the second bending section 326, the first bending section 325 is arc-shaped and bends and extends away from the inner cavity 36 from the edge of the opening 34, and the second bending section 326 is arc-shaped and bends and extends away from the insertion end 37 from the first bending section 325, forming a bidirectional bending structure through the first bending section 325 and the second bending section 326, ensuring that the supporting part 321a can elastically support the abutting part 322a, and the supporting part 321a can absorb external impact loads by its own elastic deformation, reducing the influence of external impact loads on the surrounding wall 31, further avoiding the separation and opening of the two side edges of the joint seam 35 on the surrounding wall 31, improving the reliability of the shielding sleeve 3 in shielding electromagnetic interference, and the elastic deformation of the supporting part 321a can effectively absorb assembly tolerances, reducing the processing precision requirement of the parts, thereby reducing the processing cost. By setting the supporting part 321a on one side of the opening 34 close to the insertion end 37, the supporting part 321a does not fold the abutting part 322a, so that the bending piece 32a can be directly processed by one-time stamping and bending on the basis of avoiding the generation of debris due to scratching during insertion into the insulating shell 1, which can maximize the reduction of the processing procedure of the bending piece 32a, thereby reducing the processing cost of the shielding sleeve 3.
[0081] 5. By setting the pressing block 111 on the outer shell 11 to press the outside of the surrounding wall 31, the reaction force of the folding piece 32 of the insulating shell 1 and the pressure of the pressing block 111 jointly act on the surrounding wall 31, and the pressing block 111 and the folding piece 32 jointly act to further reduce the stress of the surrounding wall 31 opening outward, avoid the two side edges of the joint seam 35 from separating and opening, and improve the stability of shielding electromagnetic interference.
[0082] 6. By setting the surrounding wall 31 as a rectangular ring structure through the first side plate 311 and the second side plate 315, the reaction force of the folding piece 32 of the insulating shell 1 is transmitted to the second side plate 315, and the pressing block 111 exerts pressure on the first side plate 311, so that the surrounding wall 31 can resist the stress of opening outward in multiple angles and all directions, further avoiding the two side edges of the joint seam 35 from separating and opening, and improving the stability of shielding electromagnetic interference.
[0083] 7. By setting the joint seam 35 on the first side plate 311 and directly pressing the joint seam 35 through the pressing block 111, directly exerting inward pressure on the position of the joint seam 35, reducing the outward tension at the two side edges of the joint seam 35, and the pressing block 111 directly pressing the position of the joint seam 35 is also more direct and effective, reducing the possibility of the two side edges of the joint seam 35 separating and opening, further improving the stability of shielding electromagnetic interference. And by setting a plurality of convex blocks 355 on the two side edges of the joint seam 35a respectively, and each convex block 355 is arranged on the two sides of the pressing block 111a in the second direction, so that even if the two side edges of the joint seam 35a separate and open, the convex blocks 355 on the two sides will resist the side surface of the pressing block 111a in the second direction, and the pressing block 111a will stop to control the opening angle of the two side edges of the joint seam 35a, avoiding the shielding sleeve 3 from completely opening, and ensuring the stability of shielding electromagnetic interference.
[0084] 8. By setting the first hem 312 and the second hem 316, the first side plate 311 and the second side plate 315 are prevented from scratching the insulating shell 1 during installation and insertion, and debris is avoided due to scratching, ensuring the stability of the terminal assembly 2 for signal or current transmission. And by setting the first hem 312 closer to the butt joint end of the insulating shell than the power terminal 21 in the first direction, it is ensured that when the connector is inserted with the mating plug from the outside, the first hem 312 will guide the mating plug to contact first, thereby playing a guiding role for the mating plug, avoiding scratching and generating debris.
[0085] 9. By providing a first groove 313 between the two first rolled edges 312 and a second groove 317 between the two second rolled edges 316, compared to a structure with only one first rolled edge 312 and one second rolled edge 316, the first groove 313 and the second groove 317 can effectively reduce the hardness of the first rolled edges 312 and the second rolled edges 316, making it easier for the first rolled edges 312 and the second rolled edges 316 to deform when in contact with the insulating shell 1 during insertion, thereby reducing the contact stress during insertion and further avoiding the generation of debris. By correspondingly setting the first groove 313 with the pressure block 111, the insertion direction of the shielding sleeve 3 is guided, thereby improving assembly efficiency; at the same time, by providing inclined guide surfaces 314 on both sides of the first groove 313, the pressure block 111 is more easily inserted into the first groove 313 during assembly, further improving assembly efficiency.
[0086] 10. The notch 38 and the snap-fit arm 33 cooperate to provide bidirectional blocking for the shielding sleeve 3 in the first direction. The depth of the notch 38 is less than the distance between the snap-fit arm 33 and the insertion end 37, so that the position of the snap-fit arm 33 connecting to the enclosure 31 in the first direction is staggered from the notch 38. The advantage of this is that the notch 38 on the enclosure 31 will reduce the hardness of the corresponding area, while the area of the enclosure 31 without the notch 38 will still maintain a rectangular ring with higher hardness. By staggering the snap-fit arm 33 and the notch 38, the snap-fit arm 33 is ensured to be in the area with higher hardness of the enclosure 31, thereby preventing the snap-fit arm 33 from coming out of the snap-fit groove 121 and improving the reliability of the bidirectional blocking of the shielding sleeve 3 by the notch 38 and the snap-fit arm 33.
[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.
[0088] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A shield sleeve for installation in an insulating housing, the shield sleeve having an extension direction which is a first direction, characterized in that, The shielding sleeve comprises: a surrounding wall, the surrounding wall is provided with an inner cavity, the inner cavity is through the two ends of the surrounding wall along the first direction; one side of the surrounding wall is provided with a joint seam, the other side of the surrounding wall is provided with an opening; the joint seam extends along the first direction, the two side edges of the joint seam are combined along the second direction perpendicular to the first direction; the opening is communicated with the inner cavity, the side edge of the opening is integrally bent to form a bending piece in the direction away from the inner cavity; the bending piece comprises a supporting part connected with the surrounding wall and a supporting part connected with the supporting part, the supporting part is bent and extended from the side edge of the opening away from the inner cavity, the supporting part has a gap with the outer surface of the surrounding wall, the end of the supporting part away from the supporting part is suspended outside the surrounding wall, the supporting part is used to press the insulating shell, so that the surrounding wall is pressed in the direction of the inner cavity, and the two side edges of the joint seam are prevented from separating in the second direction.
2. The shield sleeve of claim 1, wherein, The number of the bending pieces is at least two, and the two bending pieces are arranged on the two sides of the joint seam in the second direction.
3. The shield sleeve of claim 1, wherein, One end of the surrounding wall in the first direction is an insertion end; The supporting part is bent and extended from the side edge of the opening away from the insertion end, the supporting part is arched towards the insertion end, and the supporting part is extended from the supporting part in the first direction away from the insertion end, and the projection of the supporting part in the second direction at least partially overlaps the outer surface of the surrounding wall.
4. The shield of claim 1, wherein, One end of the surrounding wall in the first direction is an insertion end; The supporting part is bent and extended from the side edge of the opening close to the insertion end, the supporting part is extended from the supporting part in the first direction away from the insertion end; the supporting part comprises a first bending section and a second bending section, the first bending section is arched and bent and extended from the edge of the opening away from the inner cavity, the second bending section is arched and bent and extended from the first bending section away from the insertion end, and the supporting part is connected with the end of the second bending section away from the first bending section.
5. A connector characterized by comprising: It comprises: an insulating shell, the insulating shell comprises an outer shell, an inner shell and a connecting block connecting the outer shell and the inner shell; the outer shell is arranged around the outer side of the inner shell, and the connecting block is located between the outer shell and the inner shell; a terminal assembly is inserted into the inner shell; and the shielding sleeve is installed between the outer shell and the inner shell, the inner cavity of the shielding sleeve contains the inner shell, and the bending piece of the shielding sleeve abuts against the inner side wall of the outer shell; wherein the inner side wall of the outer shell is provided with a pressing block, the pressing block is arranged in a staggered manner with the bending piece, the pressing block is pressed against the outer surface of the surrounding wall of the shielding sleeve, and the insertion end of the surrounding wall is inserted into the outer shell and the inner shell in the first direction. 6. The connector of claim 5, wherein, The surrounding wall comprises two first side plates and two second side plates, the two second side plates are oppositely arranged in a second direction, the two first side plates are oppositely arranged in a third direction perpendicular to a common plane of the first direction and the second direction, and the two first side plates and the two second side plates are alternately connected in sequence, so that the surrounding wall has a rectangular ring structure. The bending piece has two and is oppositely arranged on the two second side plates, and the number of the pressing blocks is at least two, and the two pressing blocks oppositely abut on the two first side plates.
7. The connector of claim 6, wherein The joint seam of the surrounding wall is arranged on one of the first side plates, at least two convex blocks are arranged at the two side edges of the joint seam respectively, and the pressing block has a convex rib abutting against the joint seam. The two convex blocks are respectively located on the two sides of the convex rib in the second direction, and the convex rib is used for stopping the convex blocks in the second direction.
8. The connector of claim 6, wherein The first side plate is provided with a first curled edge at the insertion end, the first curled edge is curled from the edge of the first side plate in an arc shape away from the inner cavity, the second side plate is provided with a second curled edge at the insertion end, and the second curled edge is curled from the edge of the second side plate in an arc shape away from the inner cavity. A plurality of avoidance openings are formed on the outer shell to correspond to the first curled edge and the second curled edge, and the first curled edge and the second curled edge are partially accommodated in the corresponding avoidance openings. The terminal assembly comprises a power terminal, a cable connected to the power terminal, and a connecting ring sleeved outside the cable, the power terminal is inserted into the inner shell, the connecting ring abuts outside the shielding layer of the cable, one end of the surrounding wall away from the first curled edge is provided with a contact piece, and the contact piece abuts against the connecting ring; in the first direction, the first curled edge is closer to the butt joint end of the insulating shell than the power terminal, and the power terminal is closer to the butt joint end of the insulating shell than the bending piece.
9. The connector of claim 8, wherein, Two first curled edges are arranged on the same first side plate, and a first groove is arranged between the two first curled edges; two second curled edges are arranged on the same second side plate, and a second groove is arranged between the two second curled edges. The setting position of the first groove corresponds to the setting position of the pressing block, and the two side edges of the first groove are respectively provided with inclined guide surfaces, and the distances between the two side inclined guide surfaces and the insertion end gradually decrease in the direction away from the insertion end.
10. The connector of claim 5, wherein, The surrounding wall is provided with a notch, the notch is recessed from the insertion end of the surrounding wall in the first direction in a groove shape, the setting position of the notch corresponds to the setting position of the adapter block, the adapter block cooperates with the notch, and the adapter block stops the displacement of the shielding sleeve. The surrounding wall is provided with a clamping arm which is gradually away from the insertion end and extends to the inner cavity direction; the outer side wall of the inner shell is provided with a clamping groove which is a groove corresponding to the setting position of the clamping arm, and the end of the clamping arm away from the surrounding wall is pressed on the inner wall surface of the clamping groove in the first direction to stop the movement of the shielding sleeve. In the first direction, the distance between the clamping arm and the insertion end is greater than the recess depth size of the notch.