A linear motor core assembly

Abstract

This utility model provides a linear motor core assembly, belonging to the field of motor technology. It solves the problem of high processing difficulty in existing core assemblies. This linear motor core assembly includes a long strip-shaped core body and a row of guide strips. The upper side of the core body has positioning grooves for horizontally mounting the guide strips, and the lower side of the core body has a row of vertically arranged positioning plates for winding copper wire. The core body consists of two vertically arranged baffles and a row of identical winding frames. The winding frames are distributed along the length of the core body and located between the two baffles. The winding frames include horizontally arranged base plates, a row of positioning grooves evenly distributed on the top of the base plates, and a row of positioning plates evenly distributed on the bottom of the base plates. The end faces of adjacent base plates are attached together, and adjacent base plates are locked together by a concave-convex connection structure. The base plate at the beginning and the base plate at the end are respectively pressed and fixed against the two baffles. This linear motor core assembly has low processing difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and relates to a linear motor, and more particularly to a linear motor core assembly. Background Technology

[0002] A linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without requiring any intermediate conversion mechanism.

[0003] An existing linear motor structure, such as a novel linear motor cooling device disclosed in the Chinese Patent Database (application number: 201810858094.4), includes a stator unit and a mover unit. The mover unit is slidably disposed on the stator unit. The mover unit includes a coil, an iron core structure, several trapezoidal blocks, and a cooling structure. The iron core structure includes several iron core laminations. The trapezoidal blocks are parallel to the gaps between the iron core laminations. The coil is wrapped around the iron core laminations. The cooling structure includes a transition block and several water pipes. The transition block is disposed on the outside of the mover unit. The transition block has a water inlet, a water outlet, and several transition block water channels. The water inlet, the transition block water channels, the water pipes, and the water outlet are connected. The water pipes are arranged around the mover unit and are close to the coil.

[0004] In the aforementioned linear motor, the core is made up of a row of silicon steel sheets evenly distributed along the width of the core. The silicon steel sheets are integral structures and are stamped. Since the core has a certain length, longer silicon steel sheets will increase the stamping difficulty, resulting in greater overall processing difficulty for the core. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a linear motor core assembly that reduces processing difficulty.

[0006] The objective of this utility model can be achieved through the following technical solution: A linear motor core assembly includes a long strip-shaped core body and a row of profile strips distributed along the length of the core body. The upper side of the core body has positioning grooves for horizontally mounting the profile strips, and the number of positioning grooves and profile strips are the same and their positions correspond one-to-one. The lower side of the core body has a row of vertically arranged positioning plates for winding copper wire. The core body is characterized by being composed of two vertically arranged baffles and a row of identical winding frames. The row of winding frames is distributed along the length of the core body and is located between the two baffles. The winding frames include horizontally arranged base plates, a row of positioning grooves is evenly distributed on the top of the base plates, and a row of positioning plates is evenly distributed on the bottom of the base plates. The end faces of two adjacent base plates are attached together, and the two adjacent base plates are locked together by a concave-convex connection structure. The base plate at the head and the base plate at the tail are respectively pressed and fixed against the two baffles.

[0007] In the actual product, the baffle is formed by stacking and fixing a row of baffle silicon steel sheets distributed along the width direction of the iron core body; the winding frame is formed by stacking and fixing a row of winding frame silicon steel sheets distributed along the width direction of the iron core body.

[0008] The iron core body is disassembled into baffles and winding frames, and the iron core body is formed by combining the baffles and winding frames. In this way, only the silicon steel sheets corresponding to the two components that make up the baffles and winding frames need to be processed during actual processing, which effectively shortens the processing length of the silicon steel sheets and thus greatly reduces the processing difficulty.

[0009] In the aforementioned linear motor core assembly, the concave-convex connection structure between two adjacent substrates includes a first strip-shaped protrusion formed on the end face of one substrate and a first strip-shaped groove formed on the other substrate and matching the first strip-shaped protrusion. The first strip-shaped groove extends through the width of the core body, and the first strip-shaped protrusion is locked in the first strip-shaped groove. Thus, the two winding frames can be connected by pushing in from one side, which facilitates assembly.

[0010] In the aforementioned linear motor core assembly, the cross-section of the first strip-shaped protrusion is approximately T-shaped. The first strip-shaped protrusion consists of a first head and a first rod, with the first rod positioned between the first head and the corresponding substrate. The approximately T-shaped cross-section of the first strip-shaped protrusion, when fitted with the first strip-shaped groove, restricts the movement of the winding frame along the length of the core body, facilitating assembly.

[0011] In the aforementioned linear motor core assembly, the end face of the first head away from the first rod is a convex arc surface to increase the contact area between the first strip-shaped protrusion and the first strip-shaped groove, making the connection between adjacent winding frames more stable.

[0012] In the linear motor core assembly described above, baffles are attached to the end face of the corresponding base plate; the two baffles are respectively provided with a second strip groove for the first strip protrusion to be inserted into and a second strip protrusion for being inserted into the first strip groove. This design simplifies both the baffle design and the connection of the baffle to the corresponding winding frame.

[0013] In the aforementioned linear motor core assembly, the bottom wall of the positioning plate is lower than the bottom wall of the baffle to facilitate the winding of the positioning plates at the beginning and end.

[0014] Compared with existing technologies, this linear motor core assembly has the following advantages:

[0015] 1. The iron core body is disassembled into baffles and winding frames, and the iron core body is formed by combining the baffles and winding frames. In this way, only the silicon steel sheets corresponding to the two components that make up the baffles and winding frames need to be processed during actual processing, which effectively shortens the processing length of the silicon steel sheets and thus greatly reduces the processing difficulty.

[0016] 2. The cross-section of the first strip protrusion is approximately T-shaped, so that it cooperates with the first strip groove to restrict the movement of the winding frame in the length direction of the iron core body, which facilitates assembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the core assembly of this linear motor.

[0018] Figure 2 This is a three-dimensional schematic diagram of the iron core body.

[0019] Figure 3 This is a three-dimensional schematic diagram of a winding frame.

[0020] In the figure, 1 is the iron core body; 1a is the positioning groove; 1b is the positioning plate; 1c is the baffle; 1c1 is the second strip groove; 1c2 is the second strip protrusion; 1d is the winding frame; 1d1 is the base plate; 1d2 is the first strip protrusion; 1d2a is the first head; 1d2b is the arc surface; 1d3 is the first strip groove; 2 is the profile bar; 2a is the bolt hole. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] Example 1: As Figure 1 As shown, the linear motor core assembly includes a long strip-shaped core body 1 and a row of strips 2 distributed along the length of the core body 1, with the length of the strips 2 extending along the width of the core body 1.

[0023] in,

[0024] The strip 2 has a row of vertically penetrating bolt holes 2a, and the row of bolt holes 2a is evenly distributed along the width direction of the iron core body 1.

[0025] like Figure 1 and Figure 2 As shown, the upper side of the iron core body 1 has positioning grooves 1a for horizontally installing the profile strips 2, and the number of positioning grooves 1a and profile strips 2 are the same and their positions correspond one-to-one. The positioning grooves 1a are through-holes and are arranged through the width direction of the iron core body 1. In the actual product, the cross-section of the positioning groove 1a is an inverted T-shape that matches the profile strip 2. The profile strip 2 is inserted into the corresponding positioning groove 1a, and the profile strip 2 and the iron core body 1 are fixed together by welding. The lower side of the iron core body 1 has a row of vertically arranged positioning plates 1b for winding copper wire, and the row of positioning plates 1b is evenly distributed along the length direction of the iron core body 1.

[0026] Specifically

[0027] like Figure 2and Figure 3 As shown, the iron core body 1 consists of two vertically arranged baffles 1c and a row of identical winding frames 1d, with the row of winding frames 1d extending along the length of the iron core body 1. The two baffles 1c are identical in shape and size, and are arranged side by side along the length of the iron core body 1, with the row of winding frames 1d positioned between the two baffles 1c. The winding frame 1d includes a horizontally arranged base plate 1d1, a row of positioning grooves 1a evenly distributed on the top of the base plate 1d1, and a row of positioning plates 1b evenly distributed on the bottom of the base plate 1d1. The end faces of two adjacent base plates 1d1 are attached together, and adjacent base plates 1d1 are locked together by a concave-convex connection structure; the first base plate 1d1 and the last base plate 1d1 are respectively pressed and fixed onto the two baffles 1c.

[0028] In the actual product, baffle 1c is formed by stacking and fixing a row of baffle silicon steel sheets distributed along the width direction of the iron core body 1; winding frame 1d is formed by stacking and fixing a row of winding frame silicon steel sheets distributed along the width direction of the iron core body 1. Preferably, the row of baffle silicon steel sheets is fixed together by rivets, and the row of winding frame silicon steel sheets is also fixed together by rivets.

[0029] The iron core body 1 is split into a baffle 1c and a winding frame 1d, and the iron core body 1 is formed by combining the baffle 1c and the winding frame 1d. In this way, only the silicon steel sheets corresponding to the two components that make up the baffle 1c and the winding frame 1d need to be processed during actual processing, which effectively shortens the processing length of the silicon steel sheets and greatly reduces the processing difficulty.

[0030] In this embodiment,

[0031] like Figure 2 and Figure 3 As shown, in two adjacent substrates 1d1, the concave-convex connection structure includes a first strip-shaped protrusion 1d2 formed on the end face of one substrate 1d1 and a first strip-shaped groove 1d3 formed on the other substrate 1d1 and matching the first strip-shaped protrusion 1d2. The lengths of both the first strip-shaped protrusion 1d2 and the first strip-shaped groove 1d3 extend along the width direction of the core body 1. At this time, each winding frame 1d has the aforementioned first strip-shaped protrusion 1d2 and first strip-shaped groove 1d3 at both ends. The first strip-shaped groove 1d3 extends through the core body 1 along its width direction, and the first strip-shaped protrusion 1d2 is engaged in the first strip-shaped groove 1d3. Thus, the two winding frames 1d can be connected by pushing in from one side, facilitating assembly. Preferably, the lengths of both the first strip-shaped protrusion 1d2 and the first strip-shaped groove 1d3 are the same as the width of the core body 1.

[0032] To further explain, the cross-section of the first strip-shaped protrusion 1d2 is approximately T-shaped. The first strip-shaped protrusion 1d2 consists of a first head 1d2a and a first rod, with the first rod positioned between the first head 1d2a and the corresponding substrate 1d1. The approximately T-shaped cross-section of the first strip-shaped protrusion 1d2 allows it to engage with the first strip-shaped groove 1d3 to restrict the movement of the winding frame 1d along the length of the core body 1, facilitating assembly. Preferably, the end face of the first head 1d2a furthest from the first rod is a convex arc surface 1d2b to increase the contact area between the first strip-shaped protrusion 1d2 and the first strip-shaped groove 1d3, making the connection between adjacent winding frames 1d more stable.

[0033] like Figure 2 As shown, baffle 1c is attached to the end face of the corresponding substrate 1d1; the two baffles 1c are respectively provided with a second strip groove 1c1 for the first strip protrusion 1d2 to be inserted into and a second strip protrusion 1c2 for being inserted into the first strip groove 1d3. The shape and size of the second strip groove 1c1 match the first strip protrusion 1d2, and the shape and size of the second strip protrusion 1c2 match the first strip groove 1d3. This design facilitates both the design of the baffle 1c and its connection to the corresponding winding frame 1d. Further, the bottom wall of the positioning plate 1b is lower than the bottom wall of the baffle 1c to facilitate winding of the positioning plates 1b at the beginning and end.

[0034] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that: in two adjacent substrates 1d1, the concave-convex connection structure includes a row of protrusions formed on one of the substrates 1d1 and a socket opened on the other substrate 1d1 that matches the protrusions. The row of protrusions is distributed along the width direction of the iron core body 1. The number of protrusions and sockets are the same and their positions correspond one-to-one. Each protrusion is inserted into the corresponding socket.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A linear motor core assembly, comprising a long strip-shaped core body (1) and a row of profile strips (2) distributed along the length of the core body (1), wherein the upper side of the core body (1) has positioning grooves (1a) for horizontally mounting the profile strips (2), and the number of positioning grooves (1a) and profile strips (2) are the same and their positions correspond one-to-one; the lower side of the core body (1) has a row of vertically arranged positioning plates (1b) for winding copper wire, characterized in that, The iron core body (1) consists of two vertically arranged baffles (1c) and a row of identical winding frames (1d). The row of winding frames (1d) is distributed along the length of the iron core body (1) and is located between the two baffles (1c). The winding frame (1d) includes a horizontally arranged base plate (1d1), a row of positioning grooves (1a) is evenly distributed on the top of the base plate (1d1), and a row of positioning plates (1b) is evenly distributed on the bottom of the base plate (1d1). The end faces of two adjacent base plates (1d1) are attached together, and the two adjacent base plates (1d1) are locked together by a concave-convex connection structure. The base plate (1d1) at the head and the base plate (1d1) at the tail are respectively pressed and fixed on the two baffles (1c).

2. The linear motor core assembly according to claim 1, characterized in that, In two adjacent substrates (1d1), the concave-convex connection structure includes a first strip-shaped protrusion (1d2) formed on the end face of one of the substrates (1d1) and a first strip-shaped groove (1d3) formed on the other substrate (1d1) and matching the first strip-shaped protrusion (1d2). The first strip-shaped groove (1d3) is provided through the width direction of the iron core body (1), and the first strip-shaped protrusion (1d2) is locked in the first strip-shaped groove (1d3).

3. The linear motor core assembly according to claim 2, characterized in that, The cross-section of the first strip-shaped protrusion (1d2) is approximately T-shaped. The first strip-shaped protrusion (1d2) consists of a first head (1d2a) and a first rod, with the first rod located between the first head (1d2a) and the corresponding substrate (1d1).

4. The linear motor core assembly according to claim 2, characterized in that, The end face of the first head (1d2a) away from the first rod is a convex arc surface (1d2b).

5. The linear motor core assembly according to claim 2, 3, or 4, characterized in that, The baffle (1c) is attached to the end face of the corresponding substrate (1d1); the two baffles (1c) are respectively provided with a second strip groove (1c1) for the first strip protrusion (1d2) to be inserted into and a second strip protrusion (1c2) for being inserted into the first strip groove (1d3).

6. The linear motor core assembly according to claim 1, characterized in that, The bottom wall of the positioning plate (1b) is lower than the bottom wall of the baffle (1c).

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