Disclosure of utility model
Therefore, the utility model provides a high-voltage shielding cable connector of a new energy automobile, which solves the problems of difficult cable alignment, poor contact, poor shielding effect and the like existing in the existing connector when high-voltage shielding cables are in butt joint.
In order to achieve the above purpose, the utility model provides a new energy automobile high-voltage shielding cable connector, comprising:
The double-end wiring terminal is used for connecting conductors of two sections of high-voltage shielding cables and comprises a terminal main body and a locking mechanism, wherein the locking mechanism comprises a locking bolt and a movable pressing block, and the locking bolt is used for tightly connecting the cable conductors with the terminal main body;
the insulator is arranged outside the double-end wiring terminal and is made of ceramic materials;
the shielding piece is sleeved outside the insulator and used for connecting a shielding layer of the cable, the shielding piece comprises a shielding ring link mechanism and a shielding shell, and the shielding piece is locked with the shielding layer of the cable through a bolt;
The detachable insulating shell is arranged outside the shielding piece and comprises a butt-joint terminal insulating shell and a shielding layer insulating shell, the butt-joint terminal insulating shell and the shielding layer insulating shell are locked by adopting embedded buckles, and PVC insulating soft glue is arranged on the inner wall of the detachable insulating shell.
As a preferred scheme of the high-voltage shielding cable connector of the new energy automobile, the terminal main body of the double-head wiring terminal is made of red copper material, and both ends of the terminal main body are provided with wire core observation holes;
The locking mechanism comprises eight locking bolts and two movable pressing blocks, eight threaded blind holes and four positioning pins are formed in the terminal main body, two positioning holes and four through holes are formed in the movable pressing blocks, and the locking bolts fix the movable pressing blocks on the terminal main body.
As the high-voltage shielding cable connector of the new energy automobile, the insulator is divided into a base and a cover, a limiting groove is formed in the base, two lower edges of the cover are inserted into the limiting groove, and the base and the cover are matched through a positioning key to form a circular tube type structure.
As a preferred scheme of the high-voltage shielding cable connector of the new energy automobile, the shielding piece comprises a shielding shell stainless steel shell and a shielding shell copper woven mesh.
The high-voltage shielding cable connector for the new energy automobile is characterized in that the butt-joint terminal insulating shell is provided with a locking buckle, and the shielding layer insulating shell is provided with a locking clamping point;
And PVC insulating soft glue coatings are arranged on the inner walls of the butt-joint terminal insulating shell and the shielding layer insulating shell.
As new energy automobile high voltage shielding cable connector preferred scheme, still include outer insulating shell, outer insulating shell includes outer shielding shell cover and outer shielding shell, outer shielding shell cover and outer shielding shell are connected through mosaic formula buckle locking mode, outer insulating shell inner wall is equipped with PVC insulation flexible glue coating, outer shielding shell cover is equipped with locking boss, outer shielding shell is equipped with locking buckle.
As the optimal scheme of the high-voltage shielding cable connector of the new energy automobile, the shielding ring linking mechanism of the shielding piece and the shielding shell are of an integrated structure, and the inner diameter of the shielding ring linking mechanism is matched with the outer diameter of the shielding layer of the cable.
As a preferred scheme of the high-voltage shielding cable connector of the new energy automobile, a wiring terminal heat shrinkage pipe is sleeved outside the double-head wiring terminal, and the wiring terminal heat shrinkage pipe is blown and baked on the terminal main body through a hot air cavity;
The insulator heat shrinkage tube is also sleeved outside the insulator, and the insulator heat shrinkage tube is subjected to blowing, baking and heat shrinkage on the insulator through the hot air cavity.
The utility model has the advantages of realizing reliable connection of cable conductors, ensuring that the cables after butt joint are on the same straight line, improving concentricity of the butt joint cables, effectively avoiding a series of problems caused by misalignment of the cables, ensuring good insulating performance of the insulator, bearing high voltage, ensuring long-term reliable operation under complex environment by stable chemical performance, ensuring safety of a high-voltage circuit, realizing effective shielding of a connecting part by a shielding piece, preventing electromagnetic interference, ensuring normal operation of other electric equipment of a vehicle, improving insulating performance, having good waterproofness by designing a detachable insulating shell and an outer insulating shell, facilitating installation and disassembly by an embedded buckle locking mode, improving integral adhesiveness and insulating effect by the application of PVC insulating soft rubber, ensuring reasonable design of the whole structure, adapting the size and appearance of the connector to the cables, avoiding additional installation of a corrugated pipe after butt joint, not influencing installation and fixation of the cable on a frame, and saving maintenance cost and installation space.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
Fig. 1 is a schematic diagram of the overall structure of a high-voltage shielding cable connector of a new energy automobile according to an embodiment of the present utility model;
Fig. 2 is an exploded view of a high-voltage shielded cable connector for a new energy automobile according to an embodiment of the present utility model;
Fig. 3 is a schematic sectional structure of a high-voltage shielding cable connector of a new energy automobile according to an embodiment of the present utility model;
Fig. 4 is a schematic diagram of a main structure of a terminal of a high-voltage shielding cable connector of a new energy automobile according to an embodiment of the present utility model;
Fig. 5 is a schematic diagram of an active pressing block of a double-end wiring terminal of a high-voltage shielding cable connector of a new energy automobile provided by the embodiment of the utility model.
In the figure, 101, a double-end wiring terminal, 1011, a terminal main body, 1012, a locking mechanism, 10121, a locking bolt, 10122, a movable pressing block, 102, an insulator, 103, a shielding piece, 1031, a shielding ring linking mechanism, 1032, a shielding shell, 104, a detachable insulating shell, 1041, a butt-joint terminal insulating shell, 1042, a shielding layer insulating shell, 1021, a base, 1022, a cover, 10211, a limit groove, 1023, a positioning key, 10412, a locking buckle, 10422, a locking clamping point, 105, an outer insulating shell, 1051, an outer shielding shell cover, 1052, an outer shielding shell, 106, a wiring terminal heat shrinkage tube and 107, and an insulator heat shrinkage tube.
Detailed Description
Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, 2 and 3, an embodiment of the present utility model provides a high voltage shielding cable connector for a new energy automobile, including:
The double-end wiring terminal 101 is used for connecting conductors of two sections of high-voltage shielding cables, the double-end wiring terminal 101 comprises a terminal main body 1011 and a locking mechanism 1012, the locking mechanism 1012 comprises a locking bolt 10121 and a movable pressing block 10122, and the locking bolt 10121 is used for tightly connecting the cable conductors with the terminal main body 1011;
The insulator 102 is arranged outside the double-end wiring terminal 101, and the insulator 102 is made of ceramic materials;
A shield 103, which is sleeved outside the insulator 102 and is used for connecting a shielding layer of a cable, wherein the shield 103 comprises a shielding ring link mechanism 1031 and a shielding shell 1032, and the shield 103 and the cable shielding layer are locked through bolts;
the detachable insulating housing 104 is mounted outside the shielding member 103, the detachable insulating housing 104 comprises a butt-joint terminal insulating housing 1041 and a shielding layer insulating housing 1042, the butt-joint terminal insulating housing 1041 and the shielding layer insulating housing 1042 are locked by adopting embedded buckles, and PVC insulating soft glue is arranged on the inner wall of the detachable insulating housing 104.
Referring to fig. 4 and 5, in the present embodiment, a terminal main body 1011 of a double-ended connection terminal 101 is made of a red copper material, two ends of the terminal main body 1011 are provided with wire core observation holes, a locking mechanism 1012 comprises eight locking bolts 10121 and two movable pressing blocks 10122, eight threaded blind holes and four positioning pins are provided on the terminal main body 1011, two positioning holes and four through holes are provided on the movable pressing blocks 10122, and the locking bolts 10121 fix the movable pressing blocks 10122 on the terminal main body 1011.
Specifically, the dual-headed wire connection terminal 101 is a key component for achieving connection of two sections of high-voltage shielded cable conductors, wherein the locking mechanism 1012 comprises a locking bolt 10121 and a movable pressing block 10122. The terminal body 1011 is made of a red copper material, and the red copper has excellent conductivity and can ensure efficient power transmission. The terminal main body 1011 both ends design have sinle silk observation hole, and when the installation, whether operating personnel accessible sinle silk observation hole directly looks over the sinle silk and accurately places in terminal main body 1011, guarantees sinle silk and terminal main body 1011 fully contact, avoids leading to resistance increase, generates heat and causes the incident even because of the contact failure.
The principle of operation of the locking mechanism 1012 is based on mechanical fastening, among other things. The terminal main body 1011 is provided with eight threaded blind holes and four positioning pins, and the movable pressing block 10122 is correspondingly provided with two positioning holes and four through holes. When the movable pressing block 10122 is installed, the positioning holes of the movable pressing block 10122 are aligned with the positioning pins of the terminal main body 1011, so that the preliminary positioning of the movable pressing block 10122 can be realized quickly, and the accuracy of the installation position of the movable pressing block 10122 is ensured. Subsequently, the screw blind holes of the terminal body 1011 are screwed through the through holes of the movable block 10122 using eight lock bolts 10121. With the tightening of the bolts, the movable press block 10122 gradually presses the cable conductor so as to be tightly attached to the terminal main body 1011, thereby realizing reliable electrical connection. The multi-bolt and multi-positioning structure design greatly improves the stability and reliability of connection, can effectively prevent the cable conductor from loosening, and ensures the stability of power transmission.
In this embodiment, the insulator 102 is divided into two parts, namely a base 1021 and a cover 1022, the base 1021 is provided with a limit groove 10211, two lower edges of the cover 1022 are inserted into the limit groove 10211, and the base 1021 and the cover 1022 are matched through a positioning key 1023 to form a circular tube structure.
Specifically, the insulator 102 is divided into two parts, a base 1021 and a cover 1022. The base 1021 is provided with a limiting groove 10211, both lower edges of the cover 1022 are inserted into the limiting groove 10211, and the base 1021 and the cover 1022 are engaged by a positioning key 1023. This design not only ensures accurate mounting of the cover 1022 and the base 1021, but also enables the two to form a stable circular tube type structure tightly wrapped outside the double-ended terminal 101. With this structure, the insulator 102 can perform insulation protection to the double-ended connection terminal 101 in all directions, further improving the insulation performance of the connector, and preventing high-voltage leakage.
The insulator 102 is arranged outside the double-end wiring terminal 101 and is made of ceramic materials, and the ceramic can bear higher voltage, so that the leakage phenomenon caused by high-voltage electric breakdown can be effectively prevented, and the safety of personnel and equipment is ensured.
In one possible embodiment, the shield 103 is sleeved outside the insulator 102, mainly for the shielding of the connection cable against electromagnetic interference. The working principle is based on electromagnetic shielding effect, and electromagnetic signals generated by the cable are limited in a certain range, so that the influence on other electric equipment of the vehicle is avoided.
In one possible embodiment, the shield 103 comprises a shield shell 1032 stainless steel housing and a shield shell 1032 copper mesh braid. The stainless steel shell provides basic shielding and mechanical protection, and the copper woven mesh utilizes good conductivity and a woven structure of the copper woven mesh, so that high-frequency electromagnetic waves can be shielded more effectively, and the shielding effect is greatly improved due to the combination of the copper woven mesh and the high-frequency electromagnetic waves.
Wherein the shield 103 is in locking connection with the cable shield by means of bolts. When the shielding ring link mechanism 1031 of the shielding member 103 is aligned with the cable shielding layer and locked by the bolts, the cable shielding layer is conducted, so that the whole shielding system forms a complete loop, and electromagnetic signals are effectively shielded. In some embodiments, the shield ring link mechanism 1031 is integrally formed with the shield shell 1032, and the inner diameter of the shield ring link mechanism 1031 is adapted to the outer diameter of the cable shield, which further enhances the tightness and shielding effect of the connection, reducing the likelihood of electromagnetic leakage.
In one possible embodiment, the butt-joint terminal insulation shell 1041 is provided with a locking buckle 10412, the shielding layer insulation shell 1042 is provided with a locking clamping point 10422, the butt-joint terminal insulation shell 1041 and the shielding layer insulation shell 1042 are connected in a mosaic buckle locking mode, and the inner walls of the butt-joint terminal insulation shell 1041 and the shielding layer insulation shell 1042 are provided with PVC insulation soft rubber coatings.
Specifically, the detachable insulating housing 104 is mounted outside the shield 103 for dual protection. On the one hand, the PVC insulation soft rubber inside the insulating soft rubber and the PVC insulation soft rubber coating on the inner walls of the butt-joint terminal insulation shell 1041 and the shielding layer insulation shell 1042 can fill gaps among components, air is removed, the insulation performance is enhanced, and electric leakage is prevented. On the other hand, it can also provide mechanical protection for the internal components from external factors damaging the internal structure.
Wherein, the butt-joint terminal insulation shell 1041 is provided with a locking buckle 10412, the shielding layer insulation shell 1042 is provided with a locking clamping point 10422, and is connected in an embedded buckle locking mode. The connection mode is easy and convenient to operate, the corresponding locking buckle 10412 and the locking clamping point 10422 are only required to be aligned and buckled during installation, the connection mode is convenient during disassembly, the connection compactness can be ensured, and the whole detachable insulating shell 104 forms a complete protection structure.
In one possible embodiment, the outer insulating shell 105 further comprises an outer shielding shell cover 1051 and an outer shielding shell 1052, the outer shielding shell cover 1051 and the outer shielding shell 1052 are connected in a mosaic type buckle locking mode, a PVC insulating soft rubber coating is arranged on the inner wall of the outer insulating shell 105, a locking boss is arranged on the outer shielding shell cover 1051, and a locking buckle 10412 is arranged on the outer shielding shell 1052.
Specifically, the outer insulating shell 105 is also connected by a snap-fit locking manner, and is composed of an outer shield shell cover 1051 and an outer shield shell 1052. The inner wall of the insulating material is provided with a PVC insulating soft rubber coating, so that the insulating performance is further enhanced. The outer shield shell 1051 is provided with a locking boss, and the outer shield shell 1052 is provided with a locking buckle 10412, so that the locking buckle and the locking buckle are tightly matched, moisture and dust can be effectively prevented from entering the connector, additional mechanical protection can be provided, and the connector can still work stably under severe environments.
In one possible embodiment, the shield ring link mechanism 1031 of the shield 103 is integrally formed with the shield shell 1032, with the inner diameter of the shield ring link mechanism 1031 being adapted to the cable shield outer diameter. This design further enhances the tightness and shielding effect of the connection, reducing the likelihood of electromagnetic leakage.
In one possible embodiment, the external part of the double-ended binding post 101 is further sleeved with a binding post heat shrinkage tube 106, and the binding post heat shrinkage tube 106 is blown and baked on the terminal main body 1011 through a hot air cavity. Binding post pyrocondensation pipe 106 is the silica gel material, and the outer wall is the pyrocondensation material of silica gel material, and the inner wall is high temperature hot melt adhesive, can bear 125 ℃ high temperature. The heat-shrinkable tube is used for being sleeved outside the double-end connecting terminals and the shielding shell, has an insulation and waterproof function, and the hot melt adhesive of the inner wall can be melted and covered on the surface of a workpiece during heat shrinkage, so that a waterproof effect is achieved.
In one possible embodiment, the insulator 102 is further sleeved with an insulator heat-shrinkable tube 107, and the insulator heat-shrinkable tube 107 is blown and baked on the insulator 102 through a hot air cavity. The insulator heat shrinkage tube 107 is made of silica gel, the outer wall is made of the heat shrinkage material made of the silica gel, and the inner wall is made of high-temperature hot melt adhesive and can resist the high temperature of 125 ℃. The insulating waterproof coating is used for being sleeved outside the insulator 102, has an insulating waterproof function, and the hot melt adhesive on the inner wall can be melted and covered on the surface of a workpiece during thermal shrinkage, so that the waterproof effect is achieved.
The assembly process of the utility model is as follows:
Firstly, the double-end wiring terminal 101 is installed, wherein the pretreated cable conductors are respectively inserted into wiring cavities at two ends of the double-end wiring terminal 101, so that a wire core is aligned to a wire core observation hole, and the installation condition of the wire core is checked. Then, the positioning hole of the movable press block 10122 is mounted in alignment with the positioning pin of the terminal body 1011, ensuring the position of the movable press block 10122 to be accurate. Eight locking bolts 10121 sequentially penetrate through the through holes of the movable pressing block 10122 by using a tool, are screwed into the threaded blind holes of the terminal main body 1011 and are gradually screwed until the movable pressing block 10122 firmly presses the cable conductor on the terminal main body 1011.
Second, the insulator 102 is mounted by placing the assembled double-ended terminal 101, and fitting the base 1021 of the insulator 102 outside the double-ended terminal 101 to ensure close contact between the base 1021 and the terminal body 1011. Next, the cover 1022 of the insulator 102 is aligned with the limit slot 10211 and the positioning key 1023 of the base 1021, and is slowly inserted, so that the two lower edges of the cover 1022 are completely embedded into the limit slot 10211, forming a stable circular tube structure, and completing the installation of the insulator 102.
Third, the shield 103 is installed by first telescoping the shield 103 into one of the lengths of cable, taking care of the orientation of the shield loop link mechanism 1031. The shielding layer of the cable is aligned with the shielding ring linking mechanism 1031 of the shielding member 103, and the shielding layer of the cable and the shielding ring linking mechanism are locked and connected by using bolts, so that the conduction of the shielding layer of the cable is realized. Then, the shield 103 is sleeved outside the insulator 102, ensuring its position accuracy.
Fourth, the detachable insulating housing 104 is installed by installing the butt terminal insulating housing 1041 and the shielding layer insulating housing 1042 outside the shielding member 103 by a snap-fit locking manner. The locking buckle 10412 of the butt-joint terminal insulation shell 1041 is aligned with the locking clamping point 10422 of the shielding layer insulation shell 1042 to be buckled, so that the shielding layer insulation shell 1042 and the butt-joint terminal insulation shell 1041 are installed, and then the whole shielding member 103 is installed outside. The PVC insulating soft rubber on the inner wall of the detachable insulating shell 104 is fully contacted with the internal parts, gaps are filled, and insulating and protecting performances are enhanced.
Fifth, the outer dielectric housing 105 is installed (if any) by aligning the locking tabs of the outer shield shell 1051 with the locking snaps 10412 of the outer shield housing 1052, if the connector includes the outer dielectric housing 105, and installing the outer shield shell 1051 and the outer shield housing 1052 outside the removable dielectric housing 104 by a snap-fit locking. The PVC insulating soft rubber coating on the inner wall of the outer insulating shell 105 is tightly attached to the inner part, so that the insulating and protecting effects are further enhanced.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.