Method for manufacturing open type network transformer housing

Abstract

The invention discloses a method for manufacturing an open-type network transformer shell, comprising the following steps: taking a material, taking a formed base frame, the two opposite side walls of the base frame in the front and rear directions are both provided with pins, and the base frame is provided with a bearing platform; installing a slider, putting the base frame into a mold, taking at least one slider, coating the side of the slider in contact with the base frame with lubricant, and then slidingly connecting the slider to one end of the base frame, and making the slider cover the opening at one end of the base frame; injection molding, bonding the glue material and the base frame to form an integral body by injection molding, and then removing the slider on the mold from the front end or the rear end of the base frame, and the remaining glue injection parts form a cover body, the cover body comprises a connecting part and a shielding part, the connecting part is connected to the bearing platform, and a vent with a predetermined spacing is formed between the shielding part and one end of the base frame, and the vent extends in the horizontal direction.

Description

Technical Field

[0001] The invention relates to the technical field of network transformers, and in particular to a method for manufacturing an open-type network transformer housing. Background Art

[0002] The network transformer needs to be equipped with a cover on the base frame. In the past, a cover with a lock was connected to the base frame by a snap. However, there is a risk of the cover being loosened during vibration. In addition, the closed cover makes it difficult to dissipate heat from the internal coil. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a method for manufacturing an open network transformer housing, which can prevent the cover connected by the snap connection from loosening during vibration and can also increase heat dissipation.

[0004] A method for manufacturing an open-type network transformer housing according to an embodiment of the first aspect of the present invention comprises the following steps:

[0005] Taking a material, taking a formed base frame, wherein the two opposite side walls of the base frame in the front and rear directions are both provided with pins, and the base frame is provided with a bearing platform;

[0006] Installing a slider, placing the base frame into a mold, taking at least one slider, applying a lubricant to the side of the slider that contacts the base frame, and then slidingly connecting the slider to one end of the base frame so that the slider covers the opening at one end of the base frame;

[0007] Injection molding, the rubber material and the base frame are bonded together into one piece by injection molding, and then the slider on the mold is removed from the front end or rear end of the base frame, and the remaining injected rubber part forms a cover body, the cover body includes a connecting part and a shielding part, the connecting part is connected to the supporting platform, and a vent with a predetermined distance is formed between the shielding part and one end of the base frame, and the vent extends in a horizontal direction.

[0008] A method for making an open-type network transformer casing according to an embodiment of the present invention has at least the following beneficial effects: the cover body includes a connecting portion and a shielding portion, the connecting portion is used to connect the bearing platform, and the shielding portion is used to shield an opening at one end of the base frame. The cover body can not only serve as a cover, but also play a role of ventilation and heat dissipation in the presence of the opening. In addition, the connecting portion of the cover body and the bearing platform are injection-molded as one body by injection molding, so that the cover body does not need an additional snap-fit ​​connection to the base frame, thereby avoiding the risk of the snap-fitted cover loosening during vibration. In addition, the rubber material is bonded to the base frame by injection molding to form an integral body, and then the slider on the mold is moved away from the side, so that the formed cover body has both ventilation and shielding functions, and the product can be completed with only one injection molding, that is, "one-time injection molding" can replace the previous two steps of "injection molding the cover and installing the cover", thereby improving efficiency.

[0009] According to some embodiments of the present invention, in the step of installing the slider, there are two sliders, both of which are slidably set at one end of the base frame, and the slider protrudes out of the base frame in the front-to-back direction. After the injection molding is completed, the two sliders are pulled out of the base frame to form an opening between the cover body and the base frame.

[0010] According to some embodiments of the present invention, in the step of installing the slider, two grooves are arranged at intervals along the left-right direction at one end of the base frame, the grooves are used to load the sticky liquid, and the width of the slider in the left-right direction is greater than the distance between the two grooves.

[0011] According to some embodiments of the present invention, a recess is provided at the junction of adjacent side walls of the base frame, and the recess serves as a guide. When cooperating with the columns on the circuit board, the base frame can be guided for installation, and the base frame can also be positioned in the horizontal direction to avoid displacement of the base frame after installation.

[0012] According to some embodiments of the present invention, a plurality of the pins are provided, and the plurality of the pins are symmetrically distributed about a center line in the front-to-back direction of the base frame.

[0013] According to some embodiments of the present invention, one end of the pin extends into the base frame, the other end of the pin protrudes out of the base frame, and the other end of the pin is bent to form a contact portion.

[0014] According to some embodiments of the present invention, a shielding layer is embedded in the base frame, and the shielding layer can shield the interference of external signals on the coil in the base frame.

[0015] According to some embodiments of the present invention, the shielding layer comprises a metal sheet or a metal mesh.

[0016] According to some embodiments of the present invention, a guide groove is provided on a side of the shielding portion close to the base frame.

[0017] According to some embodiments of the present invention, a clamping block is further included, wherein the clamping block is arranged on the inner wall of the base frame, and the clamping block is used to clamp the coil, and the clamping block is arranged to stop the coil.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 A schematic diagram of a network transformer housing according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 An exploded view of the network transformer housing is shown;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the network transformer housing from an upward angle is shown;

[0023] Figure 4 for Figure 1 A left side view of the network transformer housing is shown;

[0024] Figure 5 for Figure 1 A cross-sectional view of a network transformer housing is shown;

[0025] Figure 6 for Figure 1 A schematic diagram showing a network transformer housing from a top view without a slider installed;

[0026] Figure 7 for Figure 1 A schematic diagram showing a top view of a network transformer housing mounting slider.

[0027] The base frame 100, the carrying platform 110, the recess 120, the groove 130, and the shielding layer 140;

[0028] Cover body 200, connecting portion 210, shielding portion 220, guide groove 221;

[0029] Pin 300, contact portion 310;

[0030] The vent 400 , the block 500 , and the slider 600 . DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference Figures 1 to 7 A method for manufacturing an open-type network transformer housing comprises the following steps:

[0036] Take a material, take a formed base frame 100, the base frame 100 is provided with pins 300 on both opposite side walls in the front and rear directions, and a bearing platform 110 is provided on the base frame 100;

[0037] Install the slider 600, put the base frame 100 into the mold, take at least one slider 600, apply lubricant to the side of the slider 600 that contacts the base frame 100, and then slide the slider 600 to one end of the base frame 100 so that the slider 600 covers the opening at one end of the base frame 100;

[0038] Injection molding, the glue and the base frame 100 are bonded together by injection molding, and then the slider 600 on the mold is removed from the front end or the rear end of the base frame 100, and the remaining injected glue parts form the cover body 200. The cover body 200 includes a connecting portion 210 and a shielding portion 220. The connecting portion 210 is connected to the supporting platform 110. A vent 400 with a predetermined distance is formed between the shielding portion 220 and one end of the base frame 100, and the vent 400 extends in a horizontal direction.

[0039] The cover body 200 includes a connecting portion 210 and a shielding portion 220. The connecting portion 210 is used to connect the support platform 110, and the shielding portion 220 is used to shield an opening at one end of the base frame 100. The cover body 200 can not only serve as a cover, but also play a role in ventilation and heat dissipation under the existence of the vent 400. In addition, the connecting portion 210 of the cover body 200 and the support platform 110 are injection molded as one body by injection molding, so that the cover body 200 does not need to be additionally snap-connected to the base frame 100, avoiding the risk of the snap-connected cover being loosened during vibration. It should be noted that there are two sliders, which are slidably arranged at one end of the base frame 100, and the two sliders slide toward each other to encapsulate the vent 400 at one end of the base frame 100. It should be noted that the open network transformer shell and the coil constitute the network transformer, the coil is housed in the base frame 100, the leads of the coil are welded or wound around the pins 300, and the coil is relied upon to achieve electrical effects such as voltage transformation or filtering. The coil and how to connect and set it are common technologies in the field. In addition, the rubber material is bonded to the base frame 100 through injection molding to form an integral body, and then the slider on the mold is removed from the side to form a cover body 200 that has both ventilation and shielding functions. The product can be completed with only one injection molding, that is, "one-time injection molding" can replace the previous two steps of "injection molding the cover and installing the cover", thereby improving efficiency.

[0040] In some embodiments, in the step of installing the slider 600, there are two sliders 600, and the two sliders 600 are both slidably set at one end of the base frame 100. The slider 600 protrudes out of the base frame 100 in the front and rear directions. After the injection molding is completed, the two sliders 600 are pulled out of the base frame 100, so that an opening is formed between the cover body 200 and the base frame 100. The two sliders 600 form a double-door structure, which makes it easier to pull out the slider 600 after injection molding, avoiding damage to the cover body 200 during the process of pulling out the slider 600, because the cover body 200 itself has a structure such as the vent 400. If too much force is used during the process of pulling out the slider 600, the cover body 200 is easily damaged.

[0041] In some embodiments, in the step of installing the slider 600, two grooves 130 are arranged at intervals along the left-right direction at one end of the base frame 100, and the grooves 130 are used to load the viscous liquid. The width of the slider 600 in the left-right direction is greater than the spacing between the two grooves 130. It can be understood that the arranged grooves 130 can also play a limiting role for the slider 600, that is, when the grooves 130 are loaded with the viscous liquid, there is a large viscous resistance between the slider 600 and the viscous liquid, and the viscous liquid has a certain resilience, that is, even if the slider 600 has a slight deviation, because the viscous liquid in the grooves 130 is more than the surface of one end of the base frame 100, the slider 600 will also return to its original position under the action of the viscous liquid backflow, so that the macroscopic manifestation is the rebound of the slider 600 after the deviation, that is, it can play a role in constraining and limiting the position of the slider 600, so that the subsequent injection molding process is more stable and smooth; in addition, a guide rail can also be arranged on the slider 600, and the guide rail is slidably connected to the groove 130, and the groove 130 is used as a slide groove at this time.

[0042] An open network transformer housing includes: a base frame 100, which is provided with a bearing platform 110; a cover body 200, including a connecting portion 210 and a shielding portion 220, the connecting portion 210 and the shielding portion 220 are integrally formed, the connecting portion 210 is connected to the bearing platform 110, and a vent 400 with a predetermined spacing is provided between the shielding portion 220 and one end of the base frame 100, and the vent 400 extends in the horizontal direction; and pins 300, which are provided on both opposite side walls of the base frame 100 in the front-to-back direction.

[0043] In some embodiments, a recess 120 is provided at the junction of adjacent side walls of the base frame 100. The recess 120 serves as a guide and can guide the installation of the base frame 100 when matched with the columns on the circuit board. It can also position the base frame 100 in the horizontal direction to avoid displacement of the base frame 100 after installation.

[0044] In some embodiments, a plurality of pins 300 are provided, and the plurality of pins 300 are symmetrically distributed about a center line of the front-to-back direction of the base frame 100 .

[0045] In some embodiments, one end of the pin 300 extends into the base frame 100, and the other end of the pin 300 protrudes out of the base frame 100. The other end of the pin 300 is bent to form a contact portion 310. It can be understood that one end of the pin 300 is used to wrap the lead on the coil, or the lead on the coil can be welded to one end of the pin 300.

[0046] In some embodiments, a shielding layer 140 is embedded in the base frame 100 , and the shielding layer 120 can shield the interference of external signals on the coil in the base frame 100 .

[0047] In some embodiments, shielding layer 140 includes a metal sheet or a metal mesh.

[0048] In some embodiments, a guide groove 221 is disposed on one side of the shielding portion 220 close to the base frame 100 , and the guide groove 221 is used to guide airflow to enter or exit the base frame 100 .

[0049] In some embodiments, a clamping block 500 is also included. The clamping block 500 is arranged on the inner wall of the base frame 100. The clamping block 500 is used to clamp the coil. The clamping block 500 is used to stop the coil. It can be understood that the clamping block 500 is arranged in a wedge shape, that is, the clamping block can gradually clamp the coil, that is, the closer the coil is to the clamping block 500 during installation, the tighter it is installed.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A method for manufacturing an open type network transformer housing, characterized in that: The following steps are involved: Taking a material, taking a formed base frame (100), wherein the base frame (100) is provided with pins (300) on two opposite side walls in the front-to-back direction, and a bearing platform (110) is provided on the base frame (100); Installing a slider (600), placing the base frame (100) into a mold, taking at least one slider (600), applying a lubricant to the side of the slider (600) that contacts the base frame (100), and then slidingly connecting the slider (600) to one end of the base frame (100), and making the slider (600) cover the opening at one end of the base frame (100); Injection molding, wherein the adhesive and the base frame (100) are bonded together to form an integral body by means of injection molding, and then the slider (600) on the mold is removed from the front end or the rear end of the base frame (100), and the remaining injected adhesive part forms a cover body (200), wherein the cover body (200) comprises a connecting portion (210) and a shielding portion (220), wherein the connecting portion (210) is connected to the supporting platform (110), and a vent (400) with a predetermined spacing is formed between the shielding portion (220) and one end of the base frame (100), and the vent (400) extends in a horizontal direction; In the step of installing the slider (600), there are two sliders (600), both of which are slidably arranged at one end of the base frame (100), and the sliders (600) protrude from the base frame (100) in the front-rear direction. After the injection molding is completed, the two sliders (600) are pulled out of the base frame (100), so that an opening is formed between the cover body (200) and the base frame (100); In the step of installing the slider (600), one end of the base frame (100) is provided with two grooves (130) spaced apart in the left-right direction, the grooves (130) are used to load the sticky liquid, and the width of the slider (600) in the left-right direction is greater than the distance between the two grooves (130); One end of the pin (300) extends into the base frame (100), and the other end of the pin (300) protrudes out of the base frame (100).

2. The method for manufacturing an open type network transformer housing according to claim 1, characterized in that: A recess (120) is provided at the junction of two adjacent side walls of the base frame (100).

3. The method for manufacturing an open type network transformer housing according to claim 1, characterized in that: A plurality of the pins (300) are provided, and the plurality of the pins (300) are symmetrically distributed about a center line in the front-to-back direction of the base frame (100).

4. The method for manufacturing an open type network transformer housing according to claim 1, characterized in that: The other end of the pin (300) is bent to form a contact portion (310).

5. The method for manufacturing an open type network transformer housing according to claim 1, characterized in that: The base frame (100) is embedded with a shielding layer (140), and the shielding layer (140) comprises a metal sheet or a metal mesh.

6. The method for manufacturing an open type network transformer housing according to claim 1, characterized in that: A guide groove (221) is provided on one side of the shielding portion (220) close to the base frame (100).

7. The method for manufacturing an open type network transformer housing according to claim 1, characterized in that: It also comprises a clamping block (500), wherein the clamping block (500) is arranged on the inner wall of the base frame (100), and the clamping block (500) is used for clamping the coil.

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