Stator wiring board injection mold

Abstract

The invention provides a stator wiring board injection mold which comprises an upper mold assembly, a lower mold assembly, a guide rod and a stator wiring board assembly, the upper mold assembly is connected with the lower mold assembly through the guide rod, and the stator wiring board assembly is arranged at the top of the lower mold assembly. The mold has the beneficial effects that the upper mold assembly is buckled on the lower mold assembly in a seamless butt joint mode through the guide rods; melted raw rubber is guided to the upper mold hot flow pipes on the two sides through cooperation of the arranged flow dividing box and the flow dividing plate, the raw rubber in the upper mold hot flow pipes flows out of the discharging holes and is subjected to injection molding from multiple nodes through the flow guiding grooves, and therefore the injection molding speed is increased, the problem that due to injection molding of multiple nodes, injection molding is unbalanced and insufficient, and consequently products are incomplete is solved, and the product quality is improved. The copper enameled wire is fixed through the clamping groove formed in the lower enameled wire clamping block, so that the problem that the reject ratio is relatively high due to displacement of the copper enameled wire in the injection molding process because the traditional copper enameled wire is difficult to fix well when being placed in a mold is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of a stator terminal board, and in particular to an injection mold of a stator terminal board used for connecting a motor of a new energy vehicle. Background Art

[0002] The stator terminal board used for connecting automobile motors is a key component inside the motor, which is mainly responsible for the electrical connection and signal transmission of the motor stator; the design of the injection mold for the stator terminal board is crucial for the production of new energy vehicle motors because it ensures the electrical connection performance and insulation performance of the motor. During the use of traditional injection molds, water cooling is generally used for cooling. The distribution range of water cooling pipes is limited, and the cooling speed is slow. After the movable mold and the fixed mold are separated, the temperature of the injection molded parts and the mold is still high. During use, it is found that demolding is very troublesome and the demolding effect is poor, which can easily cause damage to the mold and deformation of the mold; traditional copper enameled wire is difficult to fix well in the mold, and there is a problem of copper enameled wire moving during the injection molding process, resulting in a high defect rate and low production efficiency, which causes great cost pressure on the enterprise.

[0003] Chinese patent CN218876112U discloses a molding die for a fixing clip, comprising: an upper fixing plate, an upper template, a lower template, a bearing plate, two lower mold feet and a lower fixing plate which are arranged in sequence from top to bottom. The lower part of the upper template is positioned correspondingly to the guide sleeve on the lower template through a guide column. An upper mold core is arranged on the upper template, and a lower mold core is arranged on the lower template. The upper mold core and the lower mold core are arranged to form two groups of cavities for forming the contour of the fixing clip. A push plate is fixedly arranged on the bearing plate, and a lower mold insert is arranged on the push plate. The upper end of the lower mold insert extends into the cavity to assist the fixing clip. The upper fixed plate is provided with an injection port on the top, the injection port is connected with the main channel in the upper template, the two ends of the main channel are respectively connected with the cavity through branch channels, and the lower fixed plate is provided with a clamping mechanism, which solves the problem of the molding mold of the fixing clip. The upper mold core and the lower mold core are combined to form two groups of cavities for forming the contour of the fixing clip, and the injection molding of two groups of fixing clip products can be completed at the same time. The structure is simple, the production cost is saved, and the competitiveness of the product is increased; in addition, the clamping mechanism can cooperate with the machine to conveniently realize the clamping operation of the upper template, the lower template and the carrier plate, which is easy to operate and improves the injection molding efficiency.

[0004] Chinese patent CN218966005U discloses an impeller injection mold, comprising an upper mold assembly and a lower mold assembly that are movably mounted up and down; the upper mold assembly comprises a panel, a hot runner plate and a front mold that are stacked from top to bottom; the lower mold assembly comprises a rear mold, a plurality of mold feet and a bottom plate that are stacked from top to bottom; the rear mold, the plurality of mold feet and the bottom plate mutually surround a cavity, in which an ejector panel and an ejector bottom plate are stacked from top to bottom; a feeding system is provided in the upper mold assembly; an upper mold core is mounted in the front mold; a lower mold core is mounted in the rear mold, and the upper mold core and The lower mold core is adapted to the matching mold above and below, and they surround a mold cavity; the feeding system is connected with the mold cavity; an airway device is provided on the panel, and the airway device is connected with the feeding system; a plurality of ejectors are provided in the upper mold assembly and the lower mold assembly, which solves the feeding system and the airway device, and the feeding system is adjusted by the airway device to control the feeding speed and feeding amount, thereby reducing the waste generated during the injection molding process, thereby reducing the production cost and helping environmental protection; the hot runner needle valve diverter is provided to uniformly inject glue, making the injection molded product more beautiful, the thickness of each blade is uniform, and the overall balance is better, thereby extending the service life. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems and to provide a new type of stator terminal board injection mold, in which the upper mold assembly is seamlessly connected and fastened to the lower mold assembly through a guide rod, and the melted raw rubber is guided to the upper mold heat flow tubes on both sides through the provided diverter box and diverter plate. The raw rubber in the upper mold heat flow tube flows out from the discharge hole and is injected from multiple nodes through the guide groove, thereby increasing the injection speed and avoiding the problem of unbalanced and insufficient injection in single-point injection, which leads to hollow and incomplete products.

[0006] The present invention is achieved through the following technical solutions: A stator terminal board injection mold, which is used for the stator terminal board injection mold for connecting the motor of a new energy vehicle, comprises an upper mold assembly, a lower mold assembly, a guide rod, and a stator terminal board assembly. The upper mold assembly is connected to the lower mold assembly through the guide rod. The top of the lower mold assembly is provided with a stator terminal board assembly. The stator terminal board assembly comprises a plurality of copper enameled wires, an injection molding head, an enameled wire clamping block, and an enameled wire lower clamping block. The top of the copper enameled wire is provided with a plurality of injection molding heads to form a ring structure. A plurality of enameled wire clamping blocks are provided on the rear side wall of the upper part of the copper enameled wire, and the enameled wire clamping blocks fix the upper part of the enameled wire on the injection molding head. A clamping groove is provided inside the lower clamping block of the enameled wire, and a clamping groove is also provided on the inner side wall of the lower part of the clamping block of the enameled wire. The lower part of the copper enameled wire is embedded in the clamping groove inside the clamping block below the enameled wire and is fixed on the clamping block below the enameled wire. The upper part of the copper enameled wire is embedded in the clamping groove inside the clamping block above the enameled wire and is fixed on the clamping block above the enameled wire.

[0007] As a further step, the lower mold assembly includes a lower mold base, a lower mold core, a lower mold mounting seat, and a lower mold bottom plate. A groove is provided in the middle of the lower mold base, and the lower mold core is embedded in the groove in the middle of the lower mold base. A fixing mechanism is provided on the outer side of the lower mold core, a lower mold mounting seat is provided below the lower mold base, a lower mold bottom plate is provided below the lower mold mounting seat, a plurality of circular holes are provided on the top of the lower mold base, and a lower demolding mechanism is provided between the lower mold core and the lower mold bottom plate. The upper mold assembly includes an upper mold base, an upper mold hot runner plate, an upper mold heat flow pipe, and an upper mold plate. A plurality of through holes are provided on the bottom of the upper mold base, an upper mold core for injection molding is installed inside the upper mold base, an upper demolding mechanism is jointly provided inside the upper mold core and the upper mold base, a water cooling circulation mechanism is provided inside the upper mold base, an upper mold hot runner plate for diversion is installed on the upper side of the upper mold base, a feed port is fixedly connected to the middle of the upper mold base, one end of the guide rod is inserted into the circular hole on the top of the lower mold base, the other end of the guide rod is inserted into the through hole on the bottom of the upper mold base, and the upper mold base is seamlessly butt-jointed with the top of the lower mold base.

[0008] Furthermore, a position sensor is installed at the upper rear end of the lower mold base for detecting the position of the upper mold base. A hydraulic rod is installed at the four corners of the lower mold base, the lower mold mounting seat and the lower mold bottom plate. The top of the hydraulic rod is fixedly connected to the four lower corners of the upper mold base.

[0009] Furthermore, a diverter assembly is provided inside the upper mold hot runner plate, and the diverter assembly includes a diverter box and a diverter plate. The diverter box is fixedly connected inside the upper mold hot runner plate, and the diverter plate is installed inside the diverter box. The bottom of the feed port is fixedly connected to the middle of the upper side of the diverter box, and the left and right ends of the lower side of the diverter box are fixedly connected to the upper mold heat flow pipe, the lower end of the upper mold heat flow pipe is passed through the interior of the upper mold core, and a sealing port is opened at the bottom of the upper mold heat flow pipe, and a valve needle is arranged inside the upper mold heat flow pipe; a discharge hole is opened on the lower side of the upper mold core at the position of the sealing port, and a guide groove is arranged on the lower side of the upper mold core at the position of the discharge hole.

[0010] Furthermore, the upper demoulding mechanism includes a limit rod, a spring, a slanted top, and a limit block. The limit rod is fixedly connected to the interior of the upper mold base, and a spring is provided on the outside of the limit rod. A slanted top is provided on the outside of the spring. The outer wall of the slanted top is slidably connected to the interior of the upper mold core. A limit block is provided on the outer side of the slanted top, and the outer wall of the limit block is fixedly connected to the interior of the upper mold core.

[0011] Furthermore, the water-cooling circulation mechanism includes a water-cooling circulation pipe, a water-cooling connecting head, and a water-cooling valve head. The water-cooling circulation pipe is installed inside the upper mold core. The inlet and outlet of the water-cooling circulation pipe are fixedly connected to the water-cooling connecting head. The outer wall of the water-cooling connecting head is fixedly connected to the front end of the upper mold core. The extending end of the water-cooling circulation pipe is fixedly connected to the water-cooling valve head.

[0012] Further, the fixing mechanism includes a movable groove, a slider, an inclined groove, and a clamping block. The movable groove is arranged at the upper end of the lower mold base, the inner side of the movable groove is slidably connected to the slider, the outer side of the slider is provided with an inclined groove, and the inner side of the slider is fixedly connected to the clamping block.

[0013] As a further feature, a plurality of shovels are fixedly connected to the lower side of the upper mold base, an inclined plate is fixedly connected to the inner side of the shovel, and an outer wall of the inclined plate is movably connected to the inner side of the sliding block.

[0014] As a further feature, the lower demoulding mechanism comprises a pin-elastic plate and an ejector pin. The pin-elastic plate is arranged inside the lower mold core and moves up and down. The upper side of the pin-elastic plate is fixedly connected with the ejector pin.

[0015] Furthermore, a positioning ring is fixedly connected to the lower side of the lower mold bottom plate, a limiting column is fixedly connected to the upper side of the positioning ring, a bottom plate is arranged outside the limiting column, a top plate is arranged on the upper side of the bottom plate, and the upper side of the top plate is connected to the pin plate through a connecting piece.

[0016] The beneficial effects of the present invention are: (1) The upper mold assembly is seamlessly fastened to the lower mold assembly through the guide rod, and the melted raw rubber is guided to the upper mold heat flow tubes on both sides through the provided diverter box and diverter plate. The raw rubber in the upper mold heat flow tube flows out from the discharge hole and is injected from multiple nodes through the guide groove, thereby improving the injection speed and avoiding the problem of unbalanced and insufficient injection in single-point injection, which leads to hollow and incomplete products. (2) Connect one of the water-cooling connectors to the water-cooling circulation pipe, so that cold water enters the water-cooling circulation pipe and flows out from the other water-cooling connector to cool down the injection head after injection molding and speed up the molding speed. The water-cooling circulation pipe is arranged around the product to avoid the problem of uneven cooling of the product and increase the cooling speed. The multiple water-cooling valve heads are arranged to facilitate the subsequent maintenance and cleaning of the water-cooling circulation pipe, which is convenient for users to use. It has a simple structure, is easy to use, reduces costs, and is more convenient to assemble; (3) The shovel machine moves upwards, and in the injection molding preparation stage, the shovel machine moves downwards, and the copper enameled wire is fixed through the card groove set inside the card block under the enameled wire, thereby avoiding the traditional copper enameled wire being difficult to fix well in the mold, and there is a possibility of the copper enameled wire moving during the injection molding process, resulting in a high defect rate; (4) The shovel machine moves upward. During the injection molding preparation stage, the shovel machine moves downward, and the inclined plate cooperates with the slider to drive the movable groove and the block to move inward. The copper enameled wire is fixed by a groove provided on the inner wall of the lower part of the clamping block on the enameled wire, thereby avoiding the traditional copper enameled wire being difficult to fix well in the mold, and the copper enameled wire moving during the injection molding process, resulting in a high defect rate. The inclined plate cooperates with the slider to drive the movable groove and the block to move outward, and the copper enameled wire is separated from the top groove of the block, thereby avoiding the irregular shape of the product causing the product to be stuck during demolding; (5) When the compressed spring pushes the inclined ejector to move upward on the upper mold base and the upper mold core, it moves outward from the inside of the upper mold core to separate the product from the upper mold core. After the upper mold base and the upper mold core move upward, the ejector pin pushes the product upward and separates it from the lower mold, and the demoulding effect is obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the stator terminal board of the present invention; Figure 2 It is a schematic diagram of the exploded structure of the stator terminal board of the present invention; Figure 3 It is a schematic diagram of the combined structure of the upper mold assembly and the lower mold assembly of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the upper mold assembly and the lower mold assembly combined according to the present invention; Figure 5 This is a schematic diagram of the top view of the upper mold assembly of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the upper mold assembly of the present invention viewed from above; Figure 7 This is a schematic diagram of the top view of the lower mold assembly of the present invention; Figure 8 This is a schematic diagram of the exploded structure of the lower mold assembly of the present invention viewed from above; Fig. 9 It is a schematic cross-sectional structure diagram of the flow dividing box, the feed port, the flow dividing plate, the plugging port, and the valve needle included in the upper mold body of the present invention; Fig.10 It is a schematic diagram of the exploded structure of the upper mold body including the hot runner plate of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the upper mold core, the diverter box and the water cooling circulation mechanism in the present invention; Fig.12 It is a three-dimensional structural schematic diagram of the diverter box, upper mold core, inclined top, spring, and limit rod included in the present invention; Fig.13 It is a schematic diagram of the structure of the shovel, inclined plate, spring pin plate, ejector pin and clamping block in the present invention; Fig.14 It is a schematic diagram of the cross-sectional structure of the lower mold assembly of the present invention from top view; Figure numerals: 1, upper mold assembly; 11, upper mold base; 110, upper mold core; 111, discharge hole; 112, guide groove; 113, shovel; 114, inclined plate; 115, feed port; 12, upper mold hot runner plate; 120, diverter assembly; 1201, diverter box; 1202, diverter plate; 13, upper mold hot runner; 130, plugging port; 131, valve needle; 14, upper mold plate; 15, upper demoulding mechanism; 150, limit rod; 151, spring; 152, inclined top; 153, limit block; 16, water cooling circulation mechanism; 160, water cooling circulation pipe; 161, water cooling connector; 162, water cooling valve head; 17, fixed Fixed mechanism; 170, movable groove; 171, slider; 172, inclined groove; 173, clamping block; 2, lower mold assembly; 21, lower mold base; 210, position sensor; 211, groove; 212, round hole; 22, lower mold core; 23, lower mold mounting seat; 24, lower mold bottom plate; 240, positioning ring; 241, limiting column; 242, bottom plate; 243, top plate; 25, hydraulic rod; 26, lower demoulding mechanism; 260, spring pin plate; 261, ejector; 3, guide rod; 4, stator terminal board assembly; 41, enameled wire; 42, injection head; 43, enameled wire clamping block; 44, enameled wire lower clamping block; 440, clamping slot. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments: Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0019] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] Refer to Figure 1-Figure 14 As shown, a stator terminal board injection mold is used for a stator terminal board injection mold for connecting a new energy vehicle motor, comprising an upper mold assembly 1, a lower mold assembly 2, a guide rod 3, and a stator terminal board assembly 4. The upper mold assembly 1 is connected to the lower mold assembly 2 through the guide rod 3. The top of the lower mold assembly 2 is provided with a stator terminal board assembly 4. The stator terminal board assembly 4 includes a plurality of copper enameled wires 41, an injection head 42, an enameled wire upper clamping block 43, and an enameled wire lower clamping block 44. The top of the copper enameled wire 41 is provided with a plurality of injection heads 42 to form an annular structure. The upper rear side wall of the copper enameled wire 41 is provided with a plurality of enameled wire clamping blocks 43. The enameled wire 41 is provided with a plurality of injection heads 42 to form an annular structure. The upper rear side wall of the copper enameled wire 41 is provided with a plurality of enameled wire clamping blocks 43. The upper clamping block 43 of the enameled wire fixes the upper part of the enameled wire 41 on the injection head 42, and a clamping groove 440 is provided inside the lower clamping block 44 of the enameled wire. A clamping groove 440 is also provided on the inner side wall of the lower part of the clamping block 43 of the enameled wire. The lower part of the copper enameled wire 41 is embedded in the clamping groove 440 inside the clamping block 44 under the enameled wire and fixed on the clamping block 44 under the enameled wire. The upper part of the copper enameled wire 41 is embedded in the clamping groove 440 inside the clamping block 43 under the enameled wire and fixed on the clamping block 43 on the enameled wire, thereby avoiding the difficulty of fixing the traditional copper enameled wire well when placed in the mold, and the copper enameled wire may move during the injection molding process, resulting in a high defective rate.

[0021] Preferably, the lower mold assembly 2 includes a lower mold base 21, a lower mold core 22, a lower mold mounting seat 23, and a lower mold bottom plate 24. A groove 211 is provided in the middle of the lower mold base 21, and the lower mold core 22 is embedded in the groove 211 in the middle of the lower mold base 21. A fixing mechanism 17 is provided on the outer side of the lower mold core 22. A lower mold mounting seat 23 is provided below the lower mold base 21, and a lower mold bottom plate 24 is provided below the lower mold mounting seat 23. A plurality of circular holes 212 are provided on the top of the lower mold base 21. The upper mold assembly 1 includes an upper mold base 11, an upper mold hot runner plate 12, an upper mold hot runner pipe 13, and an upper mold plate 14. A plurality of through holes are provided on the bottom of the upper mold base 11. An upper mold core 110 for injection molding is installed inside the upper mold base 11. The upper mold core 110 and the upper mold base 11 are jointly provided inside There is an upper demoulding mechanism 15, and a water-cooling circulation mechanism 16 is arranged inside the upper mold base 11. An upper mold hot runner plate 12 for diversion is installed on the upper side of the upper mold base 11. A feed port 115 is fixedly connected to the middle of the upper mold base 11. One end of the guide rod 3 is inserted into the circular hole 212 on the top of the lower mold base 21, and the other end of the guide rod 3 is inserted into the through hole on the bottom of the upper mold base 11, and the upper mold base 11 is seamlessly connected and snapped onto the top of the lower mold base 21, which solves the problem of guiding the melted raw rubber to the upper mold hot flow tubes on both sides through the diversion box and the diversion plate. The raw rubber in the upper mold hot flow tube flows out from the discharge hole and is injected from multiple nodes through the guide groove, thereby improving the injection speed. At the same time, it can avoid the problem of uneven and insufficient injection in single-point injection, which leads to hollow and incomplete products.

[0022] Preferably, a position sensor 210 is installed at the upper rear end of the lower mold base 21 for detecting the position of the upper mold base 11, and a hydraulic rod 25 is installed at the four corners of the lower mold base 21, the lower mold mounting seat 23, and the lower mold bottom plate 24, and the top of the hydraulic rod 25 is fixedly connected to the four lower corners of the upper mold base 11.

[0023] Preferably, a shunt assembly 120 is provided inside the upper mold hot runner plate 12, and the shunt assembly 120 includes a shunt box 1201 and a shunt plate 1202. The shunt box 1201 is fixedly connected inside the upper mold hot runner plate 12, and the shunt plate 1202 is installed inside the shunt box 1201. The bottom of the feed port 115 is fixedly connected to the middle of the upper side of the shunt box 1201, and the left and right ends of the lower side of the shunt box 1201 are fixedly connected to the upper mold heat flow pipe 13. The lower end of the upper mold heat flow pipe 13 is penetrated into the interior of the upper mold core 110, and a sealing port 130 is opened at the bottom of the upper mold heat flow pipe 13. A valve needle 131 is arranged inside the upper mold heat flow tube 13; a discharge hole 111 is opened at a position corresponding to the sealing port 130 on the lower side of the upper mold core 110, and a guide groove 112 is arranged on the lower side of the upper mold core 110 at the position of the discharge hole, and the molten raw rubber is guided to the upper mold heat flow tube 13 on both sides through the provided diverter box 1201 and the diverter plate 1202. The raw rubber in the upper mold heat flow tube 13 flows out from the discharge hole 111 and is injected from multiple nodes through the guide groove 112, thereby improving the injection speed and avoiding the problem of uneven and insufficient injection in single-point injection, which leads to hollow and incomplete products.

[0024] Preferably, the upper demolding mechanism 15 includes a limiting rod 150, a spring 151, a slanted top 152, and a limiting block 153. The limiting rod 150 is fixedly connected to the interior of the upper mold base 11, and the outside of the limiting rod 150 is provided with a spring 151. The outside of the spring 151 is provided with a slanted top 152. The outer wall of the slanted top 152 is slidably connected to the interior of the upper mold core 110. The outer side of the slanted top 152 is provided with a limiting block 153. The outer wall of the limiting block 153 is fixedly connected to the interior of the upper mold core 110.

[0025] Preferably, the water-cooling circulation mechanism 16 comprises a water-cooling circulation pipe 160, a water-cooling connector 161, and a water-cooling valve head 162. The water-cooling circulation pipe 160 is installed inside the upper mold core 110. The inlet and outlet of the water-cooling circulation pipe 160 are fixedly connected with the water-cooling connector 161. The outer wall of the water-cooling connector 161 is fixedly connected to the front end of the upper mold core 110. The extended end of the water-cooling circulation pipe 160 is fixedly connected with the water-cooling valve head 162. The water-cooling circulation pipe 160 is connected to the water-cooling circulation pipe 160 through one of the water-cooling connectors 161, so that cold water enters the water-cooling circulation pipe 160. The water flows out from another water-cooling connector 161 to cool down the injection head 42 after injection molding and speed up the molding speed. The water-cooling circulation pipe 160 is arranged around the product to avoid the problem of uneven cooling of the product and improve the cooling speed. The multiple water-cooling valve heads 162 are arranged to facilitate the subsequent inspection and cleaning of the water-cooling circulation pipe 160. When the upper mold plate 14 and the upper mold core 110 are moved upward by the compressed spring 151, the inclined top 152 moves outward from the inside of the upper mold core 110 to separate the product from the upper mold core 110 to avoid driving it to move upward.

[0026] Preferably, the fixing mechanism 17 includes a movable groove 170, a slider 171, an inclined groove 172, and a clamping block 173. The movable groove 170 is arranged at the upper end of the lower mold base 21. The inner side of the movable groove 170 is slidably connected to the slider 171, the outer side of the slider 171 is provided with an inclined groove 172, and the inner side of the slider 171 is fixedly connected to the clamping block 173.

[0027] Preferably, a plurality of shovels 113 are fixedly connected to the lower side of the upper mold base 11, and an inclined plate 114 is fixedly connected to the inner side of the shovel 113. The outer wall of the inclined plate 114 is movably connected to the inner side of the slider 171, thereby driving the clamping block 173 to clamp and fix the copper enameled wire 41, so as to avoid the situation that the traditional copper enameled wire 41 is difficult to fix well when placed in the mold, and the copper enameled wire 41 moves during the injection molding process. When the injection molding is completed, the shovel 113 moves upward, cooperates with the slider 171 through the inclined plate 114, drives the movable groove 170 and the clamping block 173 to move outward, and the copper enameled wire 41 is separated from the top clamping groove of the clamping block 173, so as to avoid the irregular shape of the product causing the product to be stuck during demolding.

[0028] Preferably, the lower demoulding mechanism 26 comprises a pin plate 260 and an ejector pin 261 . The pin plate 260 is disposed inside the lower mold core 22 and moves up and down. The upper side of the pin plate 260 is fixedly connected with the ejector pin 261 .

[0029] Preferably, a positioning ring 240 is fixedly connected to the lower side of the lower mold base plate 24, a limiting column 241 is fixedly connected to the upper side of the positioning ring 240, a bottom plate 242 is arranged outside the limiting column 241, a top plate 243 is arranged on the upper side of the lower mold base plate 24, and the upper side of the top plate 243 is connected to the pin plate 260 via a connecting piece.

[0030] Working principle: first insert the copper enameled wire 41 into the lower mold core 22, the upper mold moves downward, the mold is closed, the melted original glue is injected into the diverter box 1201 through the feed port 115, and flows out from the discharge hole 111 through the diverter plate 1202 and the upper mold heat flow pipe 13, and flows to other directions through the guide groove 112, and injection molding is performed from multiple points. The original glue forms the injection head 42 and is connected with the copper enameled wire 41. The upper mold plate 14 drives the upper mold core 110 to descend, and the shovel 113 is lowered by the set shovel 113. The inclined plate 114 cooperates with the slider 171 to drive the movable groove 170 to move to the middle, thereby driving the clamping block 173 to clamp and fix the copper enameled wire 41. When the injection molding is completed, the shovel 113 moves upward, and the inclined plate 114 and the slider 171 are connected to the upper mold core 110. 1, driving the movable groove 170 and the clamping block 173 to move outward, the copper enameled wire 41 is separated from the clamping groove at the top of the clamping block 173, and when the upper mold plate 14 drives the upper mold core 110 to move upward, the compressed spring 151 pushes the inclined ejector 152 to move obliquely downward to demould, thereby avoiding driving the product upward. The ejector pin 261 is located at the lower side of the copper enameled wire 41. After the upper mold moves upward, the ejector pin 261 moves upward to push the copper enameled wire 41 and the injection head 42 to move upward to demould, and is connected to the water-cooling circulation pipe 160 through one of the water-cooling connectors 161, so that cold water enters the water-cooling circulation pipe 160 and flows out from the other water-cooling connector 161, thereby cooling the injection head 42 after injection molding, thereby accelerating the molding speed.

[0031] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A stator terminal block injection mold, which is used for the stator terminal block injection mold for connecting the motor of a new energy vehicle, and is characterized by: It includes an upper mold assembly, a lower mold assembly, a guide rod, and a stator terminal board assembly. The upper mold assembly is connected to the lower mold assembly through the guide rod. The stator terminal board assembly is provided on the top of the lower mold assembly. The stator terminal board assembly includes multiple copper enameled wires, an injection molding head, an enameled wire clamping block, and an enameled wire upper clamping block. Multiple injection molding heads are provided on the top of the copper enameled wire to form an annular structure. Several enameled wire clamping blocks are provided on the rear side wall of the upper part of the copper enameled wire. The enameled wire clamping block fixes the upper part of the enameled wire on the injection molding head. A clamping groove is provided inside the enameled wire clamping block. A clamping groove is also provided on the lower inner side wall of the enameled wire clamping block. The lower part of the copper enameled wire is embedded in the clamping groove inside the enameled wire clamping block and is fixed on the enameled wire clamping block. The upper part of the copper enameled wire is embedded in the clamping groove inside the enameled wire clamping block and is fixed on the enameled wire clamping block.

2. The stator terminal board injection mold according to claim 1, characterized in that: The lower mold assembly includes a lower mold base, a lower mold core, a lower mold mounting seat, and a lower mold bottom plate. A groove is provided in the middle of the lower mold base, and the lower mold core is embedded in the groove in the middle of the lower mold base. A fixing mechanism is provided on the outer side of the lower mold core, a lower mold mounting seat is provided below the lower mold base, a lower mold bottom plate is provided below the lower mold mounting seat, a plurality of circular holes are provided on the top of the lower mold base, and a lower demolding mechanism is provided between the lower mold core and the lower mold bottom plate. The upper mold assembly includes an upper mold base, an upper mold hot runner plate, an upper mold heat flow pipe, and an upper mold plate. The upper mold base A plurality of through holes are provided on the bottom, an upper mold core for injection molding is installed inside the upper mold base, an upper demolding mechanism is commonly provided inside the upper mold core and the upper mold base, a water cooling circulation mechanism is provided inside the upper mold base, an upper mold hot runner plate for diversion is installed on the upper side of the upper mold base, a feed port is fixedly connected to the middle of the upper mold base, one end of the guide rod is inserted into the circular hole on the top of the lower mold base, the other end of the guide rod is inserted into the through hole on the bottom of the upper mold base, and the upper mold base is seamlessly butt-jointed with the top of the lower mold base.

3. The stator terminal board injection mold according to claim 2, characterized in that: A position sensor is installed at the upper rear end of the lower mold base to detect the position of the upper mold base. A hydraulic rod is installed at the four corners of the lower mold base, the lower mold mounting seat, and the lower mold bottom plate. The top of the hydraulic rod is fixedly connected to the four lower corners of the upper mold base.

4. The stator terminal board injection mold according to claim 2, characterized in that: A diverter assembly is provided inside the upper mold hot runner plate, and the diverter assembly includes a diverter box and a diverter plate. The diverter box is fixedly connected inside the upper mold hot runner plate, and the diverter plate is installed inside the diverter box. The bottom of the feed port is fixedly connected to the middle of the upper side of the diverter box, and the left and right ends of the lower side of the diverter box are fixedly connected to the upper mold heat flow pipe, the lower end of the upper mold heat flow pipe is passed through the interior of the upper mold core, and a sealing port is opened at the bottom of the upper mold heat flow pipe, and a valve needle is arranged inside the upper mold heat flow pipe; a discharge hole is opened at the position of the sealing port on the lower side of the upper mold core, and a guide groove is arranged on the lower side of the upper mold core at the position of the discharge hole.

5. The stator terminal board injection mold according to claim 2, characterized in that: The upper demoulding mechanism includes a limit rod, a spring, a slanted top, and a limit block. The limit rod is fixedly connected to the interior of the upper mold base, and a spring is provided on the outside of the limit rod. A slanted top is provided on the outside of the spring. The outer wall of the slanted top is slidably connected to the interior of the upper mold core. A limit block is provided on the outer side of the slanted top, and the outer wall of the limit block is fixedly connected to the interior of the upper mold core.

6. The stator terminal board injection mold according to claim 2, characterized in that: The water-cooling circulation mechanism includes a water-cooling circulation pipe, a water-cooling connecting head, and a water-cooling valve head. The water-cooling circulation pipe is installed inside the upper mold core. The inlet and outlet of the water-cooling circulation pipe are fixedly connected with the water-cooling connecting head. The outer wall of the water-cooling connecting head is fixedly connected to the front end of the upper mold core. The extending end of the water-cooling circulation pipe is fixedly connected with the water-cooling valve head.

7. The stator terminal board injection mold according to claim 2, characterized in that: The fixing mechanism includes a movable groove, a slider, an inclined groove, and a clamping block. The movable groove is arranged at the upper end of the lower mold base. The inner side of the movable groove is slidably connected with a slider. The outer side of the slider is provided with an inclined groove. The inner side of the slider is fixedly connected with a clamping block.

8. The stator terminal plate injection mold according to claim 7, characterized in that: A plurality of shovels are fixedly connected to the lower side of the upper mold base, an inclined plate is fixedly connected to the inner side of the shovel, and an outer wall of the inclined plate is movably connected to the inner side of the sliding block.

9. The stator terminal board injection mold according to claim 2, characterized in that: The lower demoulding mechanism comprises an elastic needle plate and an ejector pin. The elastic needle plate is arranged inside the lower mold core and moves up and down. The upper side of the elastic needle plate is fixedly connected with the ejector pin.

10. The stator terminal board injection mold according to claim 9, characterized in that: A positioning ring is fixedly connected to the lower side of the lower mold bottom plate, a limiting column is fixedly connected to the upper side of the positioning ring, a bottom plate is arranged outside the limiting column, a top plate is arranged on the upper side of the bottom plate, and the upper side of the top plate is connected to the elastic pin plate through a connecting piece.

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