Stable connection type transformer
The design of the locking block and positioning block ensures a stable connection between the locking seat and the housing, solving the problem of unstable connection of the transformer in high temperature or high vibration environment, and realizing stable operation and improved production efficiency.
Patent Information
- Application Number
- CN202520187463.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-06
AI Technical Summary
In existing transformers, the metal terminals and coils are prone to separation under high temperature or high vibration environments, resulting in unstable connections, which leads to complex production processes, high costs, and low efficiency.
The design employs a locking block and positioning block. The locking seat slides along the guide slope and locks into the fixing groove. Combined with the limiting groove and fixing post, a stable connection between the locking seat and the housing is achieved, ensuring a stable connection between the metal terminal and the coil end.
This improves the connection stability between the card holder and the housing, ensuring a stable connection between the metal terminals and the coil ends under high temperature or high vibration environments, thereby reducing production costs and increasing production efficiency.
Smart Images
Figure CN223857991U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field especially relates to a stable connection formula transformer. BACKGROUND
[0002] With the continuous development of electronic technology, the transformer is widely used in various environments in life, such as urban power supply system, high-vibration construction site or other high-temperature environment, which requires the quality of the transformer in the production process to be continuously improved, so that the transformer can maintain stable operation in various use scenarios and reduce the occurrence of adverse phenomena of the transformer.
[0003] In the production process of the transformer, the coil in the shell needs to be connected with the external metal terminal, so as to realize power conduction. The metal terminal of the existing transformer is fixed in the clamping seat. The clamping seat and the shell usually need to be glued and baked to be fixed, so that the metal terminal and the end part of the coil are continuously connected. However, the two materials of the clamping seat and the shell are inconsistent in material quality and different in expansion coefficient, which is easy to cause separation in high-temperature or high-vibration environment, causing the metal terminal and the coil to separate, unstable connection, and the gluing and baking fixing mode increases the production process difficulty and the manual manufacturing time during production and manufacturing, improves the manufacturing cost, and reduces the production efficiency. SUMMARY
[0004] The main purpose of the utility model is to provide a stable connection type transformer, which aims to solve the problem that the pins and the coil separate in high-temperature or high-vibration environment, and the connection is unstable.
[0005] To achieve the above purpose, the utility model provides a stable connection type transformer, which comprises:
[0006] Winding, comprising a magnetic core and a surrounding coil;
[0007] Shell, provided with a mounting cavity for accommodating and fixing the winding, the shell side surface comprises a clamping block and a positioning block arranged at intervals, the clamping block is provided with a guide slope, and the positioning block is provided with a fixing groove;
[0008] Clamping seat, sliding along the guide slope and passing through the clamping block, the bottom of the clamping seat is clamped into the fixing groove, so that the clamping seat is fixed between the positioning block and the clamping block;
[0009] Metal terminal, fixed in the clamping seat and connected with the end part of the surrounding coil.
[0010] Optionally, one end of the clamping block away from the positioning block is a first end, and the other end is a second end, in the direction from the first end to the second end, the distance from the guide slope to the shell side surface gradually increases.
[0011] Optionally, a limiting slot extending along the sliding direction is formed on the side of the clamping seat close to the shell, and a limiting block is arranged on the side of the shell between the clamping block and the positioning block, and the limiting block extends into the limiting slot.
[0012] Optionally, the width of the limiting slot is equal to the width of the limiting block.
[0013] Optionally, the limiting block is connected to the second end of the clamping block, and the width of the clamping block is greater than the width of the limiting block.
[0014] Optionally, notches are arranged on both sides of the clamping block, and the notches are used for the end of the surrounding coil to extend out of the mounting cavity.
[0015] Optionally, the clamping block is arranged at intervals and at least two clamping blocks are arranged, and at least one notch is arranged between the two adjacent clamping blocks.
[0016] Optionally, a fixing column is arranged at the bottom of the clamping seat, the fixing slot is a hole structure penetrating through the positioning block, and the fixing column is inserted into the fixing slot.
[0017] Optionally, the metal terminal is Y-shaped to receive the end of the surrounding coil.
[0018] Optionally, a baffle is arranged on the inner wall of the mounting cavity, the winding is arranged in two groups, and the baffle is located between the two groups of windings.
[0019] The beneficial effects of the utility model lie in: the connection stability and convenience between the clamping seat and the shell are improved, the metal terminal and the end of the coil are stably connected, and the disconnection does not occur, and the transformer can also stably operate in a high-temperature or high-vibration environment; wherein the clamping block and the positioning block are arranged at intervals, the clamping block is provided with a guide slope, the positioning block is provided with a fixing slot, the clamping seat slides along the guide slope, the clamping block deforms to make the clamping seat pass through the clamping block and be clamped between the positioning block and the clamping block, the clamping seat is vertically limited, the bottom of the clamping seat is synchronously clamped into the fixing slot, the clamping seat cannot be separated from the shell in the direction away from the shell, and then the clamping seat is fixedly connected to the shell, so that the metal terminal and the end of the surrounding coil are stably connected. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the structure shown in the drawings without creative labor.
[0021] Figure 1 It is the whole structure schematic view of the stable connection type transformer of the utility model;
[0022] Figure 2 It is the structure schematic view before the stable connection type transformer of the utility model is assembled;
[0023] Figure 3 It is the explosion structure schematic view of the stable connection type transformer of the utility model;
[0024] Figure 4 It is Figure 3 It is the enlarged structure schematic view of the A area shown in the figure;
[0025] Figure 5 It is Figure 3 It is the explosion structure schematic view of the transformer from another view shown in the figure;
[0026] Label explanation:
[0027] 1, winding;11, magnetic core;12, coil;
[0028] 2, shell;21, installation cavity;211, baffle;22, clamping block;221, guide inclined surface;222, first end;223, second end;23, positioning block;231, fixed groove;24, limiting block;25, notch;
[0029] 3, clamping seat;31, limiting groove;32, fixed column;
[0030] 4, metal terminal;41, external terminal;42, internal terminal;
[0031] The realization, functional characteristics and advantages of the utility model will be further described with reference to the accompanying drawings. Specific implementation
[0032] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0033] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.
[0034] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.
[0035] An embodiment of the utility model provides a stable connection type transformer, refer to Figures 1 to 5 , comprising:
[0036] Winding 1, including magnetic core 11 and ring winding 12;
[0037] Shell 2 is provided with the installation cavity 21 of accommodating and fixing winding 1, the shell 2 side includes the clamping block 22 and the positioning block 23 arranged at intervals, the clamping block 22 is provided with guide slope 221, the positioning block 23 is provided with fixed groove 231;
[0038] Clamping seat 3 is along guide slope 221 and crosses clamping block 22, the bottom of clamping seat 3 is clamped into fixed groove 231, so that clamping seat 3 is fixed between positioning block 23 and clamping block 22;
[0039] Metal terminal 4 is fixed to clamping seat 3 and is connected with the end of ring winding 12.
[0040] The embodiment simplifies the connection stability and convenience between the clamping seat 3 and the shell 2, stably connects the metal terminal 4 and the end of the coil, does not occur from the separation, and can also make the transformer stably run in a high temperature or high vibration environment; wherein the clamping blocks 22 and the positioning blocks 23 are arranged at intervals, the clamping block 22 is provided with a guide slope 221, the positioning block 23 is provided with a fixed groove 231, the clamping seat 3 slides along the guide slope 221, and the clamping block 22 deforms to make the clamping seat 3 pass through the clamping block 22 and be clamped between the positioning block 23 and the clamping block 22, the clamping seat 3 is vertically limited, the bottom of the clamping seat 3 is synchronously clamped into the fixed groove 231, so that the clamping seat 3 does not separate from the shell 2 in the direction away from the shell 2, and then the clamping seat 3 is fixedly connected on the shell 2, so that the metal terminal 4 is stably connected with the end of the coil 12. Specifically, the shell 2 is provided with a mounting cavity 21 for mounting the winding 1, the winding 1 includes a magnetic core 11 and a coil 12, the magnetic core 11 includes two magnetic blocks that are attached, and the two magnetic blocks are designed to be separated left and right, and after the coil 12 is wound around one of the magnetic blocks, the two magnetic blocks are attached, which facilitates the winding installation of the coil 12. In the embodiment, the direction of the clamping block 22 to the positioning block 23 is vertical, when assembling, the clamping seat 3 is moved vertically, the bottom of the clamping seat 3 does not abut the guide slope 221 and slides along the guide slope 221, the clamping seat 3 extrudes the clamping block 22 in the center direction of the shell 2, so that the clamping block 22 deforms, and then the clamping seat 3 passes through the clamping block 22 and enters the interval between the clamping block 22 and the positioning block 23, the bottom of the clamping seat 3 is clamped into the fixed groove 231 to limit the movement of the clamping seat 3 in the direction away from the shell 2, so that the clamping seat 3 is installed and fixed relative to the shell 2, and then the metal terminal 4 on the clamping seat 3 is connected with the coil 12 to realize the inflow and outflow of current.
[0041] Further, the card block 22 has a first end 222 away from the positioning block 23 and a second end 223, and the distance between the guide slope 221 and the side surface of the shell 2 gradually increases from the first end 222 to the second end 223. The first end 222 of the card block 22 is away from the card seat 3, and the second end 223 is close to the card seat 3. The direction from the first end 222 to the second end 223 is vertical, and the guide slope 221 extends from the first end 222 to the second end 223. It can be understood that the sliding direction of the card seat 3 can be changed to horizontal sliding, and the guide slope 221 can also be changed according to the sliding direction of the card seat 3. In the embodiment, the guide slope 221 is inclined, and the distance between the guide slope 221 and the side surface of the shell 2 gradually increases from the first end 222 to the second end 223, that is, the thickness of the second end 223 of the card block 22 is greater than the thickness of the first end 222, so that the card seat 3 can slide along the guide slope 221. Specifically, the guide slope 221 on the first end 222 is smoothly and transitionally connected with the side surface of the shell 2, so that the card seat 3 can slide more smoothly from the side surface of the shell 2 to the guide slope 221.
[0042] Further, the card seat 3 is close to one side of the shell 2 and is provided with a limiting groove 31 extending in the sliding direction, and the side surface of the shell 2 is provided with a limiting block 24 between the card block 22 and the positioning block 23, and the limiting block 24 extends into the limiting groove 31. The extending direction of the limiting groove 31 is the same as the sliding direction of the card seat 3, the limiting block 24 is located on the side surface of the shell 2 between the card block 22 and the positioning block 23, and the limiting block 24 cooperates with the limiting groove 31 to limit the card seat 3 from sliding horizontally relative to the shell 2 after the card seat 3 slides into the card block 22 and the positioning block 23. In the embodiment, the limiting groove 31 is open at both ends in the extending direction, so that part of the structure of the limiting block 24 can enter the limiting groove 31 through the opening at the lower end of the limiting groove 31 and slide in the limiting groove 31 in advance when the card seat 3 slides along the guide slope 221, thereby playing a role of early guiding.
[0043] Further, the width of the limiting groove 31 is equal to the width of the limiting block 24. In the embodiment, the lateral width of the limiting groove 31 is equal to the lateral width of the limiting block 24, so that after the limiting block 24 extends into the limiting groove 31, the two side surfaces of the limiting block 24 are in contact with the two side walls of the limiting groove 31, preventing the clamping seat 3 from shaking left and right. It can be understood that the limiting groove 31 can also have other structural forms, for example, the limiting groove 31 is a circular groove or a square groove, and the limiting block 24 is also correspondingly provided as a circular groove or a square groove, so that after the clamping seat 3 slides between the clamping block 22 and the positioning block 23, the limiting block 24 is also clamped into the limiting groove 31, which can also achieve the purpose of limiting the clamping seat 3 from shaking left and right. In the embodiment, the limiting block 24 is provided with two, and the limiting groove 31 is also correspondingly provided with two, so as to enhance the limiting effect of the limiting block 24.
[0044] Further, the limiting block 24 is connected to the second end 223 of the clamping block 22, and the width of the clamping block 22 is greater than the width of the limiting block 24. In the embodiment, the limiting block 24 is integrally connected with the second end 223 of the clamping block 22, and the width of the clamping block 22 is greater than the width of the limiting groove 31. In the embodiment, the shell 2 can be made of plastic or other materials, so that the shell 2 can be deformed to a certain extent. When the clamping seat 3 is installed in the shell 2, the edge of the lower end of the clamping seat 3 slides along the guide inclined surface 221. Since the guide inclined surface 221 is inclined, as the clamping seat 3 slides downward, the extrusion force of the clamping seat 3 on the guide inclined surface 221 increases, and the clamping block 22 deforms towards the center of the shell 2 as a whole, so that the clamping seat 3 can continue to move vertically. When the clamping seat 3 passes the clamping block 22, the clamping block 22 restores the deformation, and the second end 223 of the clamping block 22 abuts against the upper end of the clamping seat 3. Specifically, the second end 223 of the clamping block 22 abuts against the upper end opening edge of the limiting groove 31, the limiting block 24 enters the limiting groove 31, the lower end of the clamping seat 3 abuts against the positioning block 23, and the lower end of the clamping seat 3 extends into the fixed groove 231, so that the clamping seat 3 is limited in the direction perpendicular to the side surface of the shell 2.
[0045] Further, the shell 2 is provided with a notch 25 on both sides of the clamping block 22, the notch 25 is for the end of the surrounding coil 12 to extend out of the mounting cavity 21. In the embodiment, the first end 222 of the clamping block 22 is located at the upper end edge, the notch 25 is opened on the upper side edge of the shell 2, and the notch 25 extends downward from the upper side edge of the cavity wall of the mounting cavity 21. The end of the surrounding coil 12 extends out of the mounting cavity 21 and is used to connect the metal terminal 4 on the clamping seat 3, the extension length of the notch 25 is not less than the width of the end of the surrounding coil 12, so that the surrounding coil 12 can be completely accommodated in the notch 25. The notch 25 is located on both sides of the clamping block 22 in the width direction, when the clamping seat 3 is pressed on the guide slope 221, the notch 25 on both sides of the clamping block 22 can improve the deformation effect of the clamping block 22 relative to the shell 2, thereby making the clamping seat 3 more easily mounted on the shell 2.
[0046] Further, the clamping block 22 is arranged at least in two, and at least one notch 25 is arranged between the two adjacent clamping blocks 22. In the embodiment, the clamping block 22 is provided with three, so as to improve the clamping limiting effect of the clamping block 22 on the clamping seat 3. The three clamping blocks 22 are arranged in transverse direction, and one notch 25 is arranged between the two adjacent clamping blocks 22, so that the deformation effect of each clamping block 22 is the same when being pressed by the clamping seat 3. Specifically, the notch 25 is provided with four, corresponding to the four inlet and outlet ends of the two surrounding coils 12, and ensuring that both sides of any clamping block 22 are provided with a notch 25.
[0047] Further, the bottom of the clamping seat 3 is provided with a fixing column 32, the fixing groove 231 is a hole structure penetrating the positioning block 23, and the fixing column 32 is inserted into the fixing groove 231. The fixing column 32 extends in the vertical direction, and the fixing column 32 can be inserted into the fixing groove 231 to make the clamping seat 3 more stable. Specifically, when the clamping seat 3 slides along the guide inclined surface 221, the clamping block 22 is extruded and deformed, the lower end of the fixing column 32 enters the fixing groove 231 from the upper side opening of the fixing groove 231, and as the clamping seat 3 continuously slides downward, the fixing column 32 continues to be inserted downward. When the clamping seat 3 passes the clamping block 22, the upper end of the clamping seat 3 abuts against the lower end of the clamping block 22, the lower end of the clamping seat 3 abuts against the upper side of the positioning block 23, the clamping seat 3 is limited in the up-down direction relative to the shell 2, and at the same time, the fixing column 32 is inserted into the fixing groove 231, the clamping seat 3 is limited in the front-back and left-right directions relative to the shell 2, and then the clamping seat 3 is stably fixed on the shell 2 and cannot shake or separate, and the metal terminal 4 is stably electrically connected with the surrounding coil 12. It should be noted that the fixing column 32 and the positioning block 23 are respectively provided with two, the two fixing columns 32 are respectively arranged at the two ends of the bottom of the clamping seat 3, the two positioning blocks 23 are equally spaced from the two fixing columns 32 and correspond in position, and when the clamping seat 3 is limited between the clamping block 22 and the positioning block 23, the two fixing columns 32 are respectively inserted into the two fixing grooves 231, so that the clamping seat 3 is more firmly fixed. It should be noted that the fixing member can also not be provided, for example, the fixing groove 231 is a left-right through opening groove structure, and the lower end of the clamping seat 3 can be entirely clamped into the fixing groove 231, so that after the clamping seat 3 enters between the clamping block 22 and the positioning block 23, the lower end of the clamping seat 3 can be clamped into the fixing groove 231, thereby limiting the clamping seat 3 in the direction perpendicular to the side surface of the shell 2.
[0048] Further, the metal terminal 4 is Y-shaped to receive the end of the surrounding coil 12. In this embodiment, the metal terminal 4 is embedded in the clamping seat 3 by injection molding, the metal terminal 4 includes an external connecting end 41 and an internal connecting end 42, the external connecting end 41 is electrically connected with an external power element, and the internal connecting end 42 is electrically connected with the surrounding coil 12. The metal terminal 4 is provided with at least two to correspond to a group of windings 1, one internal connecting end 42 of the metal terminal 4 is connected with an input end of the surrounding coil 12 and inputs current to the surrounding coil 12, and the other internal connecting end 42 of the metal terminal 4 is connected with an output end of the surrounding coil 12 and receives outflowing current of the surrounding coil 12. The internal connecting end 42 of the metal terminal 4 is provided in a Y-shaped structure, specifically, the internal connecting end 42 of the metal terminal 4 includes three pins, one pin in the middle is offset to the left, and the pins on both sides are offset to the right, and the end of the surrounding coil 12 is clamped between the middle pin on the left and the two pins on the right, thereby realizing quick and stable connection.
[0049] Further, the inner wall of the mounting cavity 21 is provided with a baffle 211, the winding 1 is provided with two groups, and the baffle 211 is located between the two groups of windings 1. In this embodiment, the winding 1 is provided with two groups, that is, it includes two ring-shaped coils 12 and two magnetic cores 11, and the metal terminal 4 is correspondingly provided with four metal terminals 4. The cavity wall of the mounting cavity 21 is provided with two baffles 211, the baffle 211 is located at the middle position of the inner wall of the mounting cavity 21, the two windings 1 are located on the two sides of the baffle 211 respectively, and the baffle 211 separates the two windings 1 to prevent the ring-shaped coil 12 from being in contact and causing short circuit due to excessive current.
[0050] The above is only optional embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.
Claims
1. A stable connection type transformer, characterized by, The application relates to a winding device, which comprises a winding including a magnetic core and a coil, a shell provided with a mounting cavity for fixing the winding, and a clamping block and a positioning block arranged at the side of the shell, wherein the clamping block is provided with a guide slope, and the positioning block is provided with a fixing groove. The metal terminal is fixed to the clamping seat and connected with the end of the coil. The end of the clamping block away from the positioning block is a first end, and the other end is a second end. The distance between the guide slope and the side of the shell gradually increases in the direction from the first end to the second end. The clamping seat is provided with a limiting groove extending along the sliding direction at the side close to the shell.
2. The stable connection type transformer according to claim 1, characterized by The side of the shell is provided with a limiting block between the clamping block and the positioning block, and the limiting block extends into the limiting groove.
3. The stable connection type transformer according to claim 2, characterized by The width of the limiting groove is equal to the width of the limiting block.
4. The stable connection type transformer according to claim 3, characterized by The limiting block is connected to the second end of the clamping block, and the width of the clamping block is greater than the width of the limiting block.
5. The stable connection type transformer according to claim 3, wherein The shell is provided with a notch at the two sides of the clamping block, and the notch is used for the end of the coil to extend out of the mounting cavity.
6. The stable connection type transformer according to claim 1, wherein At least two clamping blocks are arranged at intervals, and at least one notch is arranged between the two clamping blocks.
7. The stable connection type transformer according to claim 6, wherein The bottom of the clamping seat is provided with a fixing column, the fixing groove is a hole structure penetrating through the positioning block, and the fixing column is inserted into the fixing groove.
8. The stable connection type transformer according to claim 1, wherein The metal terminal is Y-shaped and used for receiving the end of the coil.
9. The stable connection type transformer according to claim 1, wherein The inner wall of the mounting cavity is provided with a baffle, the winding is provided with two groups, and the baffle is located between the two groups of windings.
10. The stable connection type transformer according to any one of claims 1 to 9, characterized by