JP2020085649A - Mobile body detector and method for manufacturing mobile body detector - Google Patents

Abstract

To provide a mobile body detector and a method for manufacturing a mobile body detector having a high production efficiency.SOLUTION: A mobile body detector 100 includes: a magnetism detection element 10 for outputting an electric signal according to the movement of a detection target body D; a magnet 20 for applying a magnetic field to the magnetism detection element 10; a lead terminal 30 connected to the magnetism detection element 10; a first housing 40 having a container 43 containing the magnetism detection element 10, the magnet 20, and the lead terminal 30; a second housing 50 over the container 43, which is engaged with and connected to the first housing 40 and faces the detection target body D; protrusions 31c and 32c in the end of the lead terminal 30 which is closer to the magnetism detection element 10 and on the outer side of the container 43; and a recess part R in the surface of the container 43 which is closer to the lead terminal 30, the recess part R facing the protrusions 31c and 32c.SELECTED DRAWING: Figure 4

Description

The present invention relates to a moving body detection device that uses a magnetic detection element, and a method for manufacturing the moving body detection device.

A moving body detection device is used for detecting the movement of a moving body that moves linearly or rotates. For example, in a moving body detection device (rotation detection device) disclosed in Patent Document 1, lead terminals are insert-molded in a middle case.

JP, 2008-164439, A

In the moving body detection device disclosed in Patent Document 1, in the step of insert-molding the lead terminal in the middle case, when the position of the lead terminal is displaced by the molding pressure of the resin or the like, the distance between the plurality of lead terminals is regulated. As described above, there is a possibility that a defective product may occur such that the connection with the magnetic detection element may be hindered or lead terminals may come into contact with each other to cause a short circuit inside the middle case, and there is room for improvement.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a moving object detection device and a method for manufacturing the moving object detection device, which have high production efficiency.

The moving body detection device 100 of the present invention is
A magnetic detection element 10 that outputs an electric signal according to the movement of the detected object D;
A magnet 20 for applying a magnetic field to the magnetic detection element 10,
A lead terminal 30 connected to the magnetic detection element 10,
A first housing 40 having an accommodating portion 43 for accommodating the magnetic detection element 10, the magnet 20, and the lead terminal 30;
A second housing 50 that covers the accommodation portion 43, is fitted and connected to the first housing 40, and is arranged to face the detected object D;
Protrusions 31c and 32c are provided on the outer peripheral side of the accommodating portion 43 at the end of the lead terminal 30 on the magnetic detection element 10 side,
A recess R is provided on the surface of the accommodating portion 43 on the lead terminal 30 side,
The recess R is characterized in that it is formed at a position facing the protrusions 31c, 32c.

The method for manufacturing the moving body detection device 100 according to the present invention is
A magnetic detection element 10 that outputs an electric signal according to the movement of the detected object D;
A magnet 20 for applying a magnetic field to the magnetic detection element 10,
A lead terminal 30 connected to the magnetic detection element 10,
A first housing 40 having an accommodating portion 43 for accommodating the magnetic detection element 10, the magnet 20, and the lead terminal 30;
A method for manufacturing a moving object detection device 100, comprising: a second housing 50 that covers the accommodation portion 43 and is fitted and connected to the first housing 40 and that is arranged to face the detected object D.
A step of providing protrusions 31c and 32c on the outer peripheral side of the accommodating portion 43 at the end of the lead terminal 30 on the magnetic detection element 10 side;
A step of providing a concave portion R at a position of the surface of the accommodating portion 43 on the side of the lead terminal 30 facing the protruding portions 31c, 32c;
The manufacturing method of the moving body detection device 100 is characterized by including.

According to the present invention, it is possible to provide a moving body detection device with high production efficiency and a method for manufacturing the moving body detection device.

The figure which shows the moving body detection apparatus which concerns on one Embodiment of this invention. The figure which looked at FIG. 1 from the downward direction (-Z direction). Sectional drawing on the AA line of FIG. The figure which removed the 2nd housing from the moving body detection device of FIG. The figure which shows a lead terminal. The figure which looked at the 1st housing of Drawing 4 from the upper part (+Z direction). The figure which shows the positional relationship of a recessed part and a lead terminal. The figure which shows the 2nd housing of FIG.

Hereinafter, a mobile body detection device according to an embodiment for carrying out the present invention will be described with reference to the drawings.
In the following description, the front-back direction is the X direction, the left-right direction is the Y direction, and the up-down direction is the Z direction with reference to the state of the moving object detection device 100 shown in FIG. In addition, the direction in which the arrows indicating the X direction, the Y direction, and the Z direction face is the + (plus) direction, and the opposite direction is the − (minus) direction.
As shown in FIGS. 2 and 3, the moving body detection device 100 of the present invention includes a magnetic detection element 10 that outputs an electric signal according to the movement of the detection target D, and a magnet 20 that applies a magnetic field to the magnetic detection element 10. A lead terminal 30 connected to the magnetic detection element 10, a first housing 40 to which the magnetic detection element 10, the magnet 20 and the lead terminal 30 are attached on one side, and a first housing 40 covering one side and fitted. A second housing 50 that is coupled and connected to face the object to be detected is provided. The first housing 40 is provided with a fixing portion 42 for fixedly installing the fixing target 70 and a lead. A part of the terminal 30 is embedded and integrated.

The moving body detection device 100 is configured, for example, as a rotation detection device provided near the axle of the front wheels of a two-wheeled vehicle, and measures the vehicle speed from the detected number of rotations of the front wheels. That is, in the moving body detection device 100, the axle of the front wheel is the detected body D, the vehicle body near the axle is the fixed target 70, and the fixed portion 42 of the first housing 40 is fixed to the fixed target 70. The second housing 50, which is fitted and connected to the housing 40, is arranged so as to face the axle.

The magnetic detection element 10 is composed of a Hall IC or the like that senses a change in the magnetic field due to the movement (rotation) of the moving body D that is the detected body. The magnetic detection element 10 is provided such that a terminal 10b projects rearward (-X direction) at a right angle from the upper end of the detection unit 10a with respect to a detection unit (detection surface) 10a having a vertical plane (YZ plane) at the tip. There is. The magnetic detection element 10 is housed in the housing portion 43 of the first housing 40. The accommodating portion 43 is formed integrally with the first housing 40, and is formed so as to project forward (+X direction). As shown in FIG. 4, the accommodating portion 43 has a first recess 43a that is open near the front center and is open upward (+Z direction). The detection unit 10a of the detection element 10 is housed, and the distal end surface (the end surface in the +X direction) of the detection unit 10a is located in the opening near the front center portion and arranged to face the detection target.

The magnet 20 is for applying a magnetic field to the magnetic detection element 10. The magnet 20 is, for example, a ferrite magnet formed in a rectangular parallelepiped shape. As shown in FIG. 3, the magnet 20 is provided in the rear (-X direction) adjacent to the first recess 43a in which the magnetic detection element 10 is housed, and in the second recess 43b opened downward (-Z direction). It has been housed from.

As shown in FIG. 5, the lead terminal 30 includes leads 31 and 32. 3 and 5, the leads 31 and 32 are exposed from the rear end portions 31a and 32a exposed from the connector portion 44, which will be described later, and near the middle of the accommodating portion 43 and the connector portion 44. It is provided with terminal connecting portions 31b and 32b electrically connected to the terminal 10b of the detection element 10 and projecting portions 31c and 32c at the end portion (direction toward the detection portion 10a) opposite to the end portions 31a and 32a. . The protrusions 31c and 32c are provided on one side of the leads 31 and 32. The leads 31 and 32 are supported in parallel with the ends 31a and 32a by a mold or a jig (not shown) so that the protrusions 31c and 32c are oriented outward with respect to the two leads 31 and 32. It is arranged in parallel with the upper surface of the housing portion 43 integrally molded with the housing 40 and is embedded and integrated with the first housing 40 and the housing portion 43 by insert molding (see FIG. 6 ). At this time, the positions of the lead terminals 30 between the protrusions 31c and 32c in the tip (+X) direction and the left and right (Y) direction are regulated by a mold or a jig (not shown) so that the leads 31 and 32 come into contact with each other. And the recess R is formed in the accommodating portion 43. The recess R is a mark of a mold not shown. FIG. 7 shows the positional relationship between the recess R and the protrusions 31c and 32c. The recess R is formed at a position facing the protrusions 31c and 32c. The length in the Y direction of the recess R is shorter than the length in the Y direction between the protrusions 31c and 32c. Since the length of the recess R in the Y direction is shorter than the length between the protrusions 31c and 32c, the leads 31 and 32 do not come into contact with each other even if the position of the mold (not shown) varies. Further, when the resin molding pressure is applied and the positions of the leads 31 and 32 are displaced, the inner surfaces of the protrusions 31c and 32c in the +X direction come into contact with a mold (not shown), so that the leads 31 and 32 do not contact. The recess R is formed parallel to the detection unit 10a. The terminal connection portions 31b and 32b of the leads 31 and 32 are electrically connected to the terminals 10b and 10b of the magnetic detection element 10 by resistance welding, respectively, and the rear end portions 31a and 32a are rear connectors of the first housing 40. The detection signal can be led to the outside as a connector pin protruding into the portion 44.

As shown in FIG. 4, the first housing 40 is formed concentrically with a main body portion 41 having a substantially oval outer shape in which two large and small arc portions are connected, and a central portion of the small arc portion of the main body portion 41. The fixing portion 42, the accommodating portion 43 integrally formed by projecting forward (+X direction) from the central portion of the large arc portion of the main body portion 41, and projecting rearward (−X direction) from the large arc portion of the main body portion 41. And a connector portion 44 integrally formed with each other, and is made of a synthetic resin such as a polybutylene terephthalate (PBT) resin. The two arc portions may have the same size.

The fixing portion 42 is provided with a metal-made cylindrical collar 42 a and is integrated with a portion of the first housing 40 that projects downward (in the −Z direction) from the body portion 41. The fixing portion 42 is integrated by insert-molding a metal cylindrical collar 42a on the small arc portion of the main body portion 41. As shown in FIG. 3, the first housing 40 can be fixed to the collar 42a by inserting a fixing bolt from the rear (-X direction) and tightening it on the fixing target 70.
In the body portion 41, a portion surrounded by an inner edge portion of the large arc portion and a semicircular portion on the large arc portion side of the collar 42a of the small arc portion is a side wall portion 41a, and an inner portion surrounded by the side wall portion 41a is The rear (-X direction) side is closed by a flat plate-shaped bottom plate portion 41b which is a recess.

The bottom plate portion 41b is a contact surface in the X direction with the second housing 50. The bottom plate portion 41b is brought into contact with the flange portion 52 of the second housing 50.

The accommodating portion 43 is made of synthetic resin and has a columnar portion 43c as shown in FIG. An O-ring groove is formed in the outer peripheral portion of the columnar portion 43c, and an O-ring 45 is attached to the second housing 50, which will be fit and connected as described later, to establish a sealed state.
The terminal connecting portions 31b and 32b are exposed from the middle (near the center) of the accommodation portion 43 in the longitudinal (X) direction. A recess R is formed between the terminal connecting portions 31b and 32b.
As described above, the accommodating portion 43 is provided with the first concave portion 43a and the second concave portion 43b. The magnetic detecting element 10 is provided in the first concave portion 43a (see FIG. 3), and the second concave portion 43b is provided with the magnetic detecting element 10. The magnets 20 are mounted respectively.

The connector part 44 is formed in a hollow rectangular tube shape and has an opening at the rear (-X direction), and projects rearward from the bottom plate part 41b of the main body part 41 to be integrally formed. (Not shown) can be connected in a predetermined direction, and the locking concavo-convex portion can hold the locked connection state of the connectors.

As shown in FIGS. 1 and 8, the second housing 50 is fitted and connected so as to cover one side (front side (+X direction)) of the housing portion 43 (see FIG. 3) of the first housing 40, and to be detected. It is provided with a bottomed cylindrical portion 51 arranged to face the body D (see FIG. 2 ), and a flange portion 52 integrally formed at the open end of the cylindrical portion 51. The second housing 50 is made of the same synthetic resin as the first housing 40, for example, a synthetic resin such as polybutylene terephthalate (PBT) resin.
In the second housing 50, the cylindrical portion 51 functions as a cover that covers the magnetic detection element 10, the magnet 20, and the like housed in the housing portion 43 formed integrally with the first housing 40. A plurality of reinforcing ribs 51a are integrally formed on the outer periphery at equal intervals in the circumferential direction. The ribs 51a increase rigidity and reduce the influence of vibration from the fixing target 70. Further, the rib 51 a has a function as a guide when the O-ring 53 is attached and a guide when the moving object detection device 100 is attached to the fixed object 70. An O-ring groove 51b is formed behind the rib 51a of the cylindrical portion 51, and an O-ring 53 is attached to seal between the O-ring 53 and the fixing target 70. Transmission to the housing 40 is suppressed.
The flange portion 52 is formed in an outer shape that conforms to the inner shape of the side wall portion 41a of the first housing 40, closes the side wall portion 52a that surrounds the periphery, and the opening on the front side of the side wall portion 52a. The cover 51 is integrally formed with the portion 51. The bottom surface 52c of the side wall portion 52a is a contact surface in the X direction with the first housing 40.
Accordingly, by mounting and connecting the second housing 50 so as to cover the inside of the first housing 40, the flange portion 52 of the second housing 50 is provided inside the side wall portion 41 a of the first housing 40. The side wall portion 52a of the first housing 40 is fitted to the side wall portion 52a so that the opening portion of the side wall portion 41a is closed by the lid plate portion 52b, and the flange portion 52 has the same thickness as the fixing portion 42 of the first housing 40. ..
That is, when the height of the side wall portion 41a of the main body portion 41 of the first housing 40 and the height of the side wall portion 52a of the flange portion 52 of the second housing 50 are in a fitted and connected state, the lid plate portion 52b is The thickness is set to be the same as that of the fixed portion 42 of the first housing 40.
Further, the flange portion 52 of the second housing 50 is sandwiched between the first housing 40 and the fixed object 70 when the first housing 40 is fixedly installed on the fixed object 70 (see FIG. 3) by the fixing portion 42. Therefore, the moving body detection device 100 can be securely held on the fixed object 70.

Between the first housing 40 and the second housing 50, as shown in FIGS. 4 and 8, a connection holding mechanism 60 that holds the fitting connection state is provided.
The first housing 40, which is the fixed side fixed to the fixing target 70, has four engaging recesses 61 formed as substantially rectangular holes in the side wall portion 41a.
On the side wall portion 52a of the second housing 50, which is the connecting side to be fitted and connected to the first housing 40, the engaging convex portion 62 having a hook that engages with the engaging concave portion 61 from the inside toward the outside is provided. It is integrally formed.
Accordingly, by mounting the side wall portion 52a of the second housing 50 inside the side wall portion 41a of the first housing 40 and connecting the side wall portion 52a of the second housing 50, the hook of the engaging convex portion 62 of the second housing 50 can be the first hook. The engagement holding state of the first housing 40 and the second housing 50 is held by the connection holding mechanism 60 by engaging with the hole of the engagement recess 61 of the housing 40.
The engaging recess 61 and the engaging protrusion 62 may be provided with the engaging protrusion 62 on the first housing 40 and the engaging recess 61 on the second housing 50, on the contrary.
Further, in the moving body detection device 100, when the first housing 40 is fixedly installed on the fixed object 70 via the fixing portion 42, the flange portion 52 of the second housing 50 fitted and connected to the first housing 40 is removed. , The first housing 40 and the fixed object 70 are sandwiched, and even if a problem occurs in the fitting and connection state by the connection holding mechanism 60, the moving object detection device 100 can be securely held on the fixed object 70. You can

As shown in FIG. 3, such a moving body detecting device 100 has an O-ring 45 mounted on a columnar portion 43c, and a second housing in a first housing 40 in which the magnetic detection element 10 and the magnet 20 are housed in the housing portion 43. The housing 50 is covered and fitted and connected, and the engagement concave portion 61 and the engagement convex portion 62 of the connection holding mechanism 60 are engaged to maintain the connected state. Further, the O-ring 53 is mounted in the O-ring groove 51b of the second housing 50 in advance.
Next, the moving body detection device 100 is mounted on the collar 42a of the fixed portion 42 of the first housing 40 by mounting the second housing 50 in the mounting hole 71 facing the detected body D formed in the fixed object 70. It is fixed by tightening the inserted mounting bolt on the fixing target 70. A connector for mounting is externally connected to the connector portion 44 so that a detection signal can be output to the outside.
As a result, the moving object detection device 100 is fixed to the fixing target 70 with the mounting bolts, the detected object D and the magnetic detection element 10 are in a state of facing each other, and the movement amount (rotation speed, etc.) of the detected object is the magnetic detection element. It is detected (measured) at 10.
When the moving object detection device 100 is, for example, a rotation detection device, the axle of the front wheel of the two-wheeled vehicle is the detected object D, the vehicle body near the axle is the fixed object 70, and the fixed object 70 has the first housing. By fixing the fixing portion 42 of the second housing 40, the tip of the second housing 50 fitted and connected to the first housing 40 is arranged in the mounting hole 71 so as to face the axle. As a result, the rotational speed of the axle is measured from the magnetic change caused by the rotation of the axle of the two-wheeled vehicle, which is the detected object D, and the vehicle speed is calculated and output to the outside, or the rotational speed of the axle is detected. Is output.

In the moving body detection device 100, the accommodating portion 43 is integrally formed in the first housing 40, the lead terminal 30 is embedded and integrated by insert molding, and the magnetic detection element 10 is accommodated in the first recess 43 a of the accommodating portion 43. Then, since the magnet 20 is housed in the second recess 43b and the first housing 40 is fixed to the fixing target 70 via the fixing portion 42, the vibration system of the detection object D and the moving object detection device 100 are fixed. The vibration system is the same.
As a result, in the conventional device, the second housing 50 is fixed to the fixing target 70 on the device side, and the first housing 40 is connected to the second housing 50. The magnetic detection element 10 and the magnet 20 are transmitted via the second housing 50 to the first housing 40 in which the magnet 20 is housed and fixed, and the vibrations are transmitted from the two vibrating systems. However, according to the moving body detection device 100 of the present invention, the number of vibration systems is one, and it is possible to suppress the influence of vibration and perform detection with high accuracy.
In the moving body detection device 100, the second housing 50 is arranged inside the first housing 40 so that the second housing 50 is fitted and connected. Therefore, the second housing 50 can be made compact, and the size and weight can be reduced. The influence of vibration can be suppressed by reducing the mass of the vibration system.
Further, since the second housing 50 is mounted in the mounting hole 71 of the fixing target 70 via the O ring 53 mounted on the outer periphery of the O ring groove 51b, the O ring 53 absorbs vibration from the fixing target 70. Therefore, the vibration reducing effect can be expected.

As described above in detail with the embodiments, according to the moving body detection device 100 of the present invention, the magnetic detection element 10 that outputs an electric signal according to the movement of the detected body, and the magnetic detection element 10. A magnet 20 for applying a magnetic field to the magnetic field, a lead terminal 30 connected to the magnetic detection element 10, a first housing 40 in which the magnetic detection element 10, the magnet 20 and the lead terminal 30 are mounted on one side, and a first housing 40. A second housing 50 which is fitted and connected to cover one side and is arranged so as to face the object to be detected. In the first housing 40, a fixing portion for fixedly installing the fixing target 70. Since 42 is provided and a part of the lead terminal 30 is embedded and integrated, the vibration system of the fixed object 70 and the vibration system of the magnetic detection element 10 and the magnet 20 are the same, and detection by a different vibration system is performed. It is possible to suppress deterioration of accuracy and detect with high accuracy.
Further, since the magnetic detection element 10 and the magnet 20 are fixed to the first housing 40 which is fixed to the fixing target 70, it is necessary to fix the magnetic detection element 10 and the magnet 20 by filling the second housing 50 with resin and curing it. Therefore, the curing time is not required, and the production can be efficiently performed in a short time.

According to the moving body detection device 100 of the present invention, the second housing 50 is provided with the flange portion 52 that is sandwiched between the first housing 40 and the fixing target 70 when the fixing portion 42 is fixedly installed. The second housing 50 can be securely fixed via the first housing 40. As a result, even if the fitting connection between the first housing 40 and the second housing 50 is released, the fixed state of the fixed object 70 can be maintained as it is.

According to the moving body detection device 100 of the present invention, the fixed portion 42 is provided with the metal-made cylindrical collar 42a and is integrated with the first housing 40, and the flange portion 52 is provided around the fixed portion 42. Since it is formed in at least a part, it can be securely fixed to the fixing target 70 by the metal collar 42a of the fixing portion 42, and the flange portion 52 is sandwiched and fixed when the fixing portion 42 is fixed. Therefore, it can be more firmly and surely fixed.

The leads 31 and 32 are supported in parallel at the end portions 31a and 32a by using a mold or jig, and the tips of the leads 31 and 32 are further supported at the protruding portions 31c and 32c by using the mold and jig ( By regulating the position in the +X) direction, when the lead terminal 30 is insert-molded in the first housing 40, it is possible to suppress the positional deviation of the lead terminal 30 due to the molding pressure of the resin or the like. That is, the distance between the leads 31 and 32 exceeds the specified value, which hinders the connection with the magnetic detection element 10, or the defective products such as the leads 31 and 32 contacting each other to cause a short circuit inside the first housing 40. Can be suppressed. Therefore, a moving object detection device with high production efficiency can be obtained.

An example of a method of manufacturing the moving body detection device 100 will be briefly described.

1) The leads 31 and 32 are formed so as to include the terminal connecting portions 31b and 32b and the protruding portions 31c and 32c by using a mold or a jig (not shown).
2) The leads 31 and 32 and the collar 42a are insert-molded in the first housing 40. At this time, the leads 31 and 32 are supported in parallel by using a die or jig (not shown), and the protrusions 31c and 32c are regulated by a die or jig (not shown). A recess R is formed on the surface. By fixing the ends 31a and 32a with a mold or jig and restricting the protrusions 31c and 32c, it is possible to suppress the positional deviation of the lead terminal 30 due to the molding pressure of the resin, and the leads 31 and 32 are parallel to each other. It is formed while maintaining a stable state.
3) The magnetic detection element 10 is fixed to the first recess 43a and the magnet 20 is fixed to the second recess 43b by a method such as bonding.
4) The terminal 10b of the magnetic detection element 10 and the terminal connecting portions 31b and 32b are resistance-welded.
5) Mount the O-ring 45 in the housing portion 43.
6) The O-ring 53 is attached after fitting the second housing 50 and the first housing 40, or the O-ring 53 is attached to the second housing 50 and then the second housing 50 and the first housing 40 are attached. The housing 40 is fitted.

The present invention is not limited to the above embodiments.
For example, in the above-described embodiment, the case where the moving object detection device 100 is used as the rotation detection device to detect an object to be rotationally moved has been described as an example, but the present invention is not limited to this. May be

Although the magnetic detection element 10 has been described by taking the case of being configured by the Hall IC as an example, the magnetic detection element 10 is not limited to this and may be any type such as another type.

Although the case where the leads 31 and 32 have different shapes has been described as an example, objects having the same shape may be arranged so as to be symmetrical.

The material of the first housing 40, the second housing 50, and the like is not particularly limited, and a commonly used synthetic resin or the like can be used.

The X, Y, and Z directions in the moving body detection device 100 are set for the sake of explanation, and the mounting direction of the moving body detection device 100 and the like are not limited to these directions.

INDUSTRIAL APPLICABILITY The present invention is applicable to a moving body (rotation) detecting device that detects the rotation of an axle of a two-wheeled vehicle using a magnetic detecting element, and a method for manufacturing the moving body (rotation) detecting device.

100 moving body detection device 10 magnetic detection element 10a detection unit (detection surface)
10b terminal 20 magnet 30 lead terminal 31 lead 31a end portion 31b terminal connection portion 32 lead 32a end portion 32b terminal connection portion 40 first housing 41 main body portion 41a side wall portion 41b bottom plate portion (contact surface)
42 fixing part 42a collar 43 accommodating part 43a first recess 43b second recess 43c columnar part 44 connector part 45 O-ring 50 second housing 51 cylindrical part 51a rib 51b O-ring groove 52 flange part 52a side wall part 52b lid plate part 52c Bottom (contact surface)
53 O-ring 60 Connection holding mechanism 61 Engagement concave portion 62 Engagement convex portion 70 Fixing target 71 Mounting hole D Moving body (detected body)
R recess

Claims (2)

A magnetic detection element that outputs an electric signal according to the movement of the detected object,
A magnet for applying a magnetic field to the magnetic detection element,
A lead terminal connected to the magnetic detection element,
A first housing having a housing for housing the magnetic detection element, the magnet, and the lead terminal;
A moving body detection device comprising: a second housing that covers the accommodation portion, is fitted and connected to the first housing, and is disposed to face the detected body;
An end of the lead terminal on the side of the magnetic detection element, a protrusion on the outer peripheral side of the accommodating portion,
A recess on the lead terminal side surface of the accommodating portion,
The moving body detection device, wherein the concave portion is formed at a position facing the protruding portion. A magnetic detection element that outputs an electric signal according to the movement of the detected object,
A magnet for applying a magnetic field to the magnetic detection element,
A lead terminal connected to the magnetic detection element,
A first housing having a housing for housing the magnetic detection element, the magnet, and the lead terminal;
A method for manufacturing a moving body detection device, comprising: a second housing that covers the accommodation portion, is fitted and connected to the first housing, and is disposed so as to face the detected body,
An end of the lead terminal on the magnetic detection element side, a step of providing a protrusion on the outer peripheral side of the accommodating portion;
A step of providing a concave portion at a position facing the protruding portion on the surface of the accommodating portion on the lead terminal side,
A method of manufacturing a moving body detection device, comprising:

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