Encapsulation mold for bare die inductors

Abstract

The application discloses a kind of encapsulation mould of bare glue inductance, including first mould block and second mould block;Two ends of the first mould block are also provided with butt joint sleeve, two ends of the second mould block are also provided with connecting sliding sleeve, and the lock bolt is slidably inserted on the connecting sliding sleeve.The first mould block and the second mould block are combined together, form multiple mold cavities, each mold cavity is provided with slidable limit block on both sides, it is convenient to limit inductance of multiple different specifications and sizes, avoid inductance position deviation during inductance encapsulation glue process, when inductance is put into mold cavity, inductance position does not need manual adjustment, the initial position of limit block is also not needed to be adjusted, only limit block corresponding to the descending action of two sides synchronous descending inclined press plate, the limit block of two sides can jointly act inductance, inductance is pushed to the middle position of mold cavity, it is convenient to improve the quality of inductance product formed after encapsulation glue.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bare glue inductor production, in particular to a pouring mold for bare glue inductor. BACKGROUND

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it; the traditional process production mode of inductors is a series of processes such as bare inductor making, bare inductor casing, pouring, and glue curing. The production process is complex, the production cycle is long, the cost is high, and there are many quality control points. Compared with the traditional casing and pouring inductor, the bare glue inductor saves a pouring box and is directly formed in the pouring mold, thereby reducing the production cost.

[0003] Chinese Patent Publication No. CN114211656A, entitled "A pouring mold for bare glue inductor", comprises a first mold block, a second mold block, and a mold closing assembly. The first mold block and the second mold block form a plurality of mold cavities on the inner sides of the two mold blocks when they are closed. The mold cavities are used to pour and cure the placed product. The mold closing assembly is arranged on both sides of the first mold block and the second mold block, and is used to close and fix the two mold blocks.

[0004] The above-mentioned prior art has the following disadvantages: the mold cavity of the above-mentioned scheme cannot limit the inductor. When the external size of the inductor is smaller than the size of the mold cavity due to production errors or other reasons, the inductor cannot be effectively limited, and the inductor is prone to positional deviation, which affects the processing of the outgoing line position and thus affects the processing quality. In general, in order to facilitate the placement of the inductor in the mold cavity and the pouring of glue, the size of the mold cavity is slightly larger than the size of the inductor. The existing scheme does not limit the size of the inductor placed therein, and the position of the inductor cannot be guaranteed to be centered during the placement process. Manual measurement and adjustment are required, which is prone to small positional deviations and affects product quality. SUMMARY

[0005] The present application aims to provide a pouring mold for bare glue inductor to solve the technical problem of the prior art that the pouring mold for bare glue inductor is not convenient for limiting and adjusting the position of the inductor.

[0006] The technical problem solved by the present application can be achieved by the following technical solutions:

[0007] A pouring mold for bare glue inductor, comprising a first mold block and a second mold block, wherein the first mold block and the second mold block are connected in cooperation; a plurality of half-mold cavities are equally spaced on the first mold block and the second mold block;

[0008] The outer wall of the two ends of the first mold block and the second mold block is vertically provided with a strip-shaped sliding groove, the two ends of the first mold block are further provided with a butt joint sleeve, and the butt joint sleeve is in sliding connection with the corresponding strip-shaped sliding groove; the two ends of the second mold block are further provided with a connecting sliding sleeve, and the connecting sliding sleeve is in sliding connection with the corresponding strip-shaped sliding groove; a lock bolt is slidably inserted into the connecting sliding sleeve;

[0009] The second mold block is provided with a threaded fixing mechanism matched with the lock bolt;

[0010] The butt joint sleeve and the connecting sliding sleeve are both connected with mutually symmetrical inclined pressing plates, the outer wall of the first mold block and the second mold block is equally distributed with a plurality of limiting blocks, and each limiting block is slidably penetrated into the corresponding half mold cavity.

[0011] As a further scheme of the present application, the threaded fixing mechanism comprises a connecting screw sleeve and a push screw rod, the connecting screw sleeve is connected to the outer wall of the second mold block, the push screw rod is threadedly connected to the connecting screw sleeve, and the lock bolt is provided with a clamping hole matched with the push screw rod; the push screw rod and the first mold block are cooperatively provided with a tightening mechanism.

[0012] As a further scheme of the present application, the tightening mechanism comprises an inclined block and an elastic rubber extrusion block, the top end of the push screw rod is rotatably connected with a rotating frame, the elastic rubber extrusion block is rotatably connected with the push screw rod through the rotating frame, the inclined block is connected to the outer wall of the first mold block, and the elastic rubber extrusion block cooperates with the inclined block.

[0013] As a further scheme of the present application, the end of the limiting block away from the half mold cavity is connected with a pressure receiving ball matched with the inclined pressing plate.

[0014] As a further scheme of the present application, the first mold block and the second mold block are both provided with a magnetic stripe, and the opposite magnetic poles of the two magnetic stripes are opposite.

[0015] As a further scheme of the present application, the end of the lock bolt close to the butt joint sleeve is provided with a triangular extrusion block matched with the butt joint sleeve.

[0016] As a further scheme of the present application, the inner bottom of each strip-shaped sliding groove is connected with a limiting spring.

[0017] As a further scheme of the present application, the end of the lock bolt away from the butt joint sleeve is connected with an anti-extrusion block.

[0018] The present application has the following beneficial effects:

[0019] 1. When the first mold block and the second mold block of the present invention are combined together, multiple mold cavities are formed. Each mold cavity is provided with sliding limit blocks on both sides to facilitate the limiting of the inductor and avoid positional deviation during the inductor potting process. After the first mold block and the second mold block are combined, they are spliced ​​by locking bolts. The locking bolts can make the inclined pressure plates on the first mold block and the second mold block descend synchronously. When the inductor is placed in the mold cavity, there is no need to manually adjust the inductor position to be centered, nor is there a need to adjust the initial position of the limit blocks. The limit blocks on both sides can work together to push the inductor to the middle position of the mold cavity by relying solely on the downward action of the inclined pressure plates descending synchronously on both sides. This facilitates the improvement of the quality of the inductor product formed after potting.

[0020] 2. After the first mold block and the second mold block of the present invention are assembled together, the locking bolt on the second mold block is inserted laterally into the mating sleeve on the first mold block. Since the end of the locking bolt is provided with a triangular extrusion block, when there is a lateral misalignment between the first mold block and the second mold block, the triangular extrusion block can slide relative to the second mold block by means of extrusion force during the process of extruding into the mating sleeve, thereby achieving automatic alignment.

[0021] 3. After the locking bolt of the present invention is horizontally connected between the first mold block and the second mold block, the push screw is rotated downwards. During the descent, the push screw is inserted into the locking bolt's locking hole to limit the locking bolt. This ensures that the first mold block and the second mold block are fixedly connected together. At the same time, during the descent of the push screw to connect with the locking bolt, the push screw can push the locking bolt down, thereby causing the inclined pressure plates on both sides to descend. That is, the limiting block can be adjusted simultaneously during the locking process. At the same time, during the descent of the push screw, the elastic rubber extrusion block at its end acts on the inclined block on the first mold block, so that the inclined block is subjected to lateral force. This facilitates the first mold block and the second mold block to be firmly abutted together. That is, during the operation of the push screw, the limiting block can act on the inductor and the first mold block and the second mold block can be fixed together. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the initial assembly of the first mold block and the second mold block in this invention;

[0025] Figure 3 This is a cross-sectional structural diagram of the combination of the first mold block and the second mold block in this invention;

[0026] Figure 4is a schematic view of the top structure of the combination of the first mold block and the second mold block in the present application;

[0027] Figure 5 is Figure 4 is a schematic view of the enlarged structure at A in the present application;

[0028] Figure 6 is a schematic view of the right structure of the first mold block in the present application;

[0029] Figure 7 is a schematic view of the top structure of the misaligned splicing of the first mold block and the second mold block in the present application.

[0030] In the figure: 1, first mold block; 2, second mold block; 3, elastic rubber extrusion block; 4, inclined block; 5, rotating frame; 6, connecting screw sleeve; 7, push-up screw; 8, clamping hole; 9, lock bolt; 10, connecting sliding sleeve; 11, strip-shaped sliding groove; 12, limiting spring; 13, butt joint sleeve; 14, pressure receiving ball; 15, inclined pressure plate; 16, limiting block; 17, half mold cavity; 18, triangular extrusion block; 19, magnetic strip; 20, anti-dropping block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] As Figures 1-7 shown, a potting mold for bare glue inductors includes a first mold block 1 and a second mold block 2. The first mold block 1 and the second mold block 2 are connected in cooperation and combined together to form a complete potting mold. The first mold block 1 and the second mold block 2 are both provided with a magnetic strip 19, and the opposite magnetic poles of the two magnetic strips 19 are opposite. The magnetic strip 19 facilitates the butt joint of the first mold block 1 and the second mold block 2.

[0033] A plurality of half mold cavities 17 are equidistantly formed on the first mold block 1 and the second mold block 2. When the first mold block 1 and the second mold block 2 are spliced together, the corresponding half mold cavities 17 are spliced together to form a complete mold cavity. The complete mold cavity is matched with the corresponding inductor to facilitate the placement of the inductor. The size of the complete mold cavity formed by splicing is larger than the size of the inductor, which facilitates the placement of the inductor and the potting of the glue, and facilitates the wrapping of the inductor coil by the glue.

[0034] Both ends of the first mold block 1 and the second mold block 2 are vertically provided with strip grooves 11. Each strip groove 11 is vertically connected to a limit spring 12 at its inner bottom. Both ends of the first mold block 1 are also provided with docking sleeves 13, which are slidably connected to the corresponding strip grooves 11. When the docking sleeves 13 slide down along the strip grooves 11, the limit springs 12 are compressed. Both ends of the second mold block 2 are also provided with connecting sleeves 10, which are slidably connected to the corresponding strip grooves 11. When the connecting sleeves 10 slide down, the corresponding limit springs 12 are compressed. A locking bolt 9 is slidably inserted on the connecting sleeve 10. A triangular pressing block 18 is provided at the end of the locking bolt 9 near the docking sleeve 13, and the triangular pressing block 18 cooperates with the docking sleeve 13. An anti-detachment block 20 is connected at the end of the locking bolt 9 away from the docking sleeve 13. The anti-detachment block 20 is used to prevent the locking bolt 9 from detaching from the connecting sleeve 10.

[0035] When the first mold block 1 and the second mold block 2 are placed together on a horizontal table, the locking bolts 9 at both ends of the second mold block 2 are slid, causing the locking bolts 9 to drive the triangular extrusion block 18 to slide into the corresponding mating sleeve 13. If there is a lateral positional deviation between the first mold block 1 and the second mold block 2, such as Figure 7 As shown, there is a certain misalignment between the two, and the two ends are not completely aligned. When the triangular extrusion block 18 is inserted into the corresponding mating sleeve 13, it relies on the inclined surface to press the edge of the mating sleeve 13. The extrusion force causes the first mold block 1 to slide relative to the second mold block 2. When the triangular extrusion block 18 is fully inserted into the mating sleeve 13, the first mold block 1 and the second mold block 2 are aligned and spliced ​​without the need for separate adjustment. They can be automatically adjusted synchronously during the sliding of the locking bolt 9.

[0036] The second mold block 2 is provided with a threaded fixing mechanism that cooperates with the locking bolt 9. The threaded fixing mechanism includes a connecting screw sleeve 6 and a push screw 7. The connecting screw sleeve 6 is fixedly connected to the outer wall of the second mold block 2, and the push screw 7 is threadedly connected to the connecting screw sleeve 6. The locking bolt 9 is provided with a locking hole 8 that cooperates with the push screw 7. When the locking bolt 9 drives the triangular extrusion block 18 to be inserted into the mating sleeve 13, the locking hole 8 is aligned with the push screw 7. At this time, the push screw 7 is rotated downward so that the bottom end of the push screw 7 is inserted into the locking hole 8. This achieves the lateral limitation of the locking bolt 9, which makes it convenient for the locking bolt 9 to fix the first mold block 1 and the second mold block 2 together. At the same time, the downward rotating push screw 7 can push the locking bolt 9, so that the locking bolt 9 drives the mating sleeve 13 and the connecting sliding sleeve 10 to slide down along the strip groove 11.

[0037] The tightening mechanism is arranged between the push screw 7 and the first mold block 1, and comprises an inclined block 4 and an elastic rubber extrusion block 3. The push screw 7 is rotationally connected with a rotating frame 5, and the elastic rubber extrusion block 3 is rotationally connected with the push screw 7 through the rotating frame 5. The inclined block 4 is fixedly connected to the outer wall of the first mold block 1, and the elastic rubber extrusion block 3 cooperates with the inclined block 4. When the push screw 7 rotates and moves downward, the push screw 7 drives the elastic rubber extrusion block 3 to descend. In this process, the elastic rubber extrusion block 3 is bent and deformed to generate a rebound force, which can act on the inclined block 4 in a transverse direction, so that the inclined block 4 is subjected to a transverse force directed to the second mold block 2, thereby facilitating the inclined block 4 to drive the first mold block 1 to be pressed against the second mold block 2, enhancing the firmness of the abutment of the first mold block 1 and the second mold block 2, and ensuring the quality of the glue filling.

[0038] The abutment sleeves 13 and the connecting sliding sleeves 10 are both connected with mutually symmetrical inclined pressing plates 15. When the first mold block 1 and the second mold block 2 are combined together to form a complete mold, the inclined pressing plates 15 are distributed on both sides of the mold. The outer walls of the first mold block 1 and the second mold block 2 are both equally spaced with a plurality of limiting blocks 16, and each limiting block 16 is slidingly penetrated into a corresponding half mold cavity 17. The end of the limiting block 16 away from the half mold cavity 17 is connected with a pressure receiving ball 14 cooperating with the inclined pressing plate 15 through a rod body.

[0039] When the push screw 7 pushes the lock bolt 9 downward, the lock bolt 9 drives the abutment sleeves 13 and the connecting sliding sleeves 10 on both sides to slide downward synchronously. In this process, the inclined pressing plates 15 distributed on both sides of the mold slide downward synchronously. The inclined pressing plates 15 on both sides press the corresponding pressure receiving balls 14 downward. When the pressure receiving balls 14 are pressed in a longitudinal direction by the inclined surfaces, the corresponding limiting blocks 16 are driven to slide in a transverse direction into the mold cavity. At this time, whether the distance between the inductors placed in the mold cavity and the limiting blocks 16 on both sides is the same, or whether the initial positions of the limiting blocks 16 on both sides are symmetrically distributed, or whether the inductors are centered in the mold cavity, due to the symmetrical distribution and synchronous descent of the inclined pressing plates 15 on both sides, the limiting blocks 16 on both sides can be slid to the symmetrical points due to the pressing of the inclined pressing plates 15. That is, the limiting blocks 16 finally have the same length inserted into the mold cavity. In this way, the inductors are pressed and abutted by the limiting blocks 16 on both sides, the inductors are limited, and the inductors are centered in the mold cavity, thereby improving the quality of the bare glue inductor product after the glue is filled.

[0040] The working principle of the present application is as follows: firstly, the first mold block 1 and the second mold block 2 are placed on a horizontal table top to be combined together, and are initially butted, then the lock bolt 9 at both ends of the second mold block 2 is slid, so that the lock bolt 9 drives the triangular extrusion block 18 to slide into the corresponding butt joint sleeve 13, if there is a transverse position deviation between the first mold block 1 and the second mold block 2, that is, there is a certain misalignment between the two, the two ends are not completely aligned, at this time, when the triangular extrusion block 18 is inserted into the corresponding butt joint sleeve 13, the triangular extrusion block 18 is extruded on the inclined surface of the butt joint sleeve 13, and the first mold block 1 is slid relative to the second mold block 2 by the extrusion force, when the triangular extrusion block 18 is completely inserted into the butt joint sleeve 13, the first mold block 1 and the second mold block 2 are combined together, and no separate adjustment is required, and the adjustment can be automatically synchronized during the sliding of the lock bolt 9;

[0041] When the lock bolt 9 drives the triangular extrusion block 18 to be inserted into the butt joint sleeve 13, the clamping hole 8 is aligned with the push screw 7, at this time, the push screw 7 is rotated and moved downward, so that the bottom end of the push screw 7 is inserted into the clamping hole 8, so that the lock bolt 9 is transversely limited, which facilitates the fixation of the first mold block 1 and the second mold block 2 by the lock bolt 9, then a plurality of inductors are respectively placed in a plurality of mold cavities formed after the mold is combined, then the push screw 7 is continuously rotated and moved downward, the push screw 7 can push the lock bolt 9, so that the lock bolt 9 drives the butt joint sleeve 13 and the connecting sliding sleeve 10 to slide downward along the strip-shaped sliding groove 11;

[0042] During the process, the push screw 7 drives the elastic rubber extrusion block 3 to descend, so that the elastic rubber extrusion block 3 is pressed on the inclined block 4, the elastic rubber extrusion block 3 is bent and deformed to generate a resilient force, the resilient force can act on the inclined block 4 in a transverse direction, so that the inclined block 4 is subjected to a transverse force directed to the second mold block 2, thereby facilitating the inclined block 4 to press the first mold block 1 tightly on the second mold block 2, and enhancing the firmness of the butting of the first mold block 1 and the second mold block 2, so as to ensure the quality of the glue pouring;

[0043] During the process of the push screw 7 pushing the lock bolt 9 to descend, the inclined pressing plates 15 distributed on both sides of the mold are synchronously slid downward, the inclined pressing plates 15 on both sides are descended to extrude the corresponding pressure balls 14, when the pressure balls 14 are extruded in a longitudinal direction by the inclined surfaces, the corresponding limiting blocks 16 are driven to slide in a transverse direction into the mold cavities, at this time, whether the spacing between the inductors placed in the mold cavities and the limiting blocks 16 on both sides is the same, that is, whether the initial positions of the limiting blocks 16 on both sides are symmetrically distributed, and whether the inductors are centrally placed in the mold cavities, since the inclined pressing plates 15 on both sides are symmetrically distributed and synchronously descended, and due to the extrusion of the inclined pressing plates 15, the limiting blocks 16 on both sides can be slid to the symmetric points, that is, the limiting blocks 16 finally have the same length of the portion inserted into the mold cavities, so that the inductors are extruded and pressed by the limiting blocks 16 on both sides, the limiting is achieved, and the inductors are centrally located in the mold cavities, thereby improving the quality of the bare glue inductor product after the glue is poured.

[0044] The above has been described in detail one embodiment of the present application, but the content is only the preferred embodiment of the present application, cannot be considered for limiting the scope of the present application. Any equivalent changes and improvements made in the scope of the present application, should still belong to the scope of the present application.

Claims

1. A potting mold for a bare glue inductor, comprising a first mold block (1) and a second mold block (2), the first mold block (1) and the second mold block (2) being connected in a mating manner; a plurality of semi-mold cavities (17) are equally spaced on both the first mold block (1) and the second mold block (2); characterized in that: The first mold block (1) and the second mold block (2) are both vertically provided with strip grooves (11) on their outer walls. The first mold block (1) is also provided with a docking sleeve (13) at both ends, which is slidably connected to the corresponding strip groove (11). The second mold block (2) is also provided with a connecting sleeve (10) at both ends, which is slidably connected to the corresponding strip groove (11). A locking bolt (9) is slidably inserted on the connecting sleeve (10). The second mold block (2) is provided with a threaded fixing mechanism that cooperates with the locking bolt (9); Both the docking sleeve (13) and the connecting sliding sleeve (10) are connected with mutually symmetrical inclined pressure plates (15). Multiple limiting blocks (16) are evenly distributed on the outer walls of the first mold block (1) and the second mold block (2), and each limiting block (16) slides through the corresponding half mold cavity (17). The threaded fixing mechanism includes a connecting threaded sleeve (6) and a push screw (7). The connecting threaded sleeve (6) is connected to the outer wall of the second mold block (2). The push screw (7) is threaded onto the connecting threaded sleeve (6). The locking bolt (9) has a locking hole (8) that cooperates with the push screw (7). A tightening mechanism is provided between the push screw (7) and the first mold block (1).

2. The potting mold for a bare glue inductor according to claim 1, characterized in that, The tightening mechanism includes an inclined block (4) and an elastic rubber extrusion block (3). The top of the push screw (7) is rotatably connected to a rotating frame (5). The elastic rubber extrusion block (3) is rotatably connected to the push screw (7) through the rotating frame (5). The inclined block (4) is connected to the outer wall of the first mold block (1), and the elastic rubber extrusion block (3) cooperates with the inclined block (4).

3. The potting mold for a bare glue inductor according to claim 1, characterized in that, The end of the limiting block (16) away from the semi-mold cavity (17) is connected to a pressure ball (14) that cooperates with the inclined pressure plate (15).

4. The potting mold for a bare glue inductor according to claim 1, characterized in that, Both the first mold block (1) and the second mold block (2) are provided with magnetic strips (19), and the magnetic poles of the two magnetic strips (19) are opposite.

5. The potting mold for a bare glue inductor according to claim 1, characterized in that, The locking bolt (9) is provided with a triangular pressing block (18) at one end near the docking sleeve (13), and the triangular pressing block (18) cooperates with the docking sleeve (13).

6. The potting mold for a bare glue inductor according to claim 1, characterized in that, Each of the strip grooves (11) has a limit spring (12) connected to its inner bottom.

7. The potting mold for a bare glue inductor according to claim 1, characterized in that, The locking bolt (9) is connected to an anti-detachment block (20) at the end away from the docking sleeve (13).

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