Sensor sheath structure and motor controller

Abstract

The utility model provides a sensor sheath structure and a motor controller. The sensor sheath structure comprises a sheath body and a connecting piece arranged on the sheath body. Wherein the sheath body is provided with an accommodating cavity with an opening in one end and a via hole communicated with the other end of the accommodating cavity, a limiting part is arranged on the sheath body, the sensor can be inserted into the accommodating cavity from the opening, the limiting part can abut against the sensor to limit the insertion displacement of the sensor, and the via hole is used for allowing a PIN of the sensor to penetrate through. The connecting piece is used for being connected with an installation carrier of the sensor. According to the sensor sheath structure provided by the utility model, the accommodating cavity into which the sensor can be inserted is arranged, so that the sensor can be well protected, and the displacement of the sensor can be limited through the arrangement of the limiting part, so that the normal work of the sensor can be ensured; through the arrangement of the connecting piece, the sheath body can be connected to the mounting carrier, so that the connection firmness between the sensor and the mounting carrier can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a sensor sheath structure. At the same time, the utility model also relates to a motor controller provided with the sensor sheath structure. Background Technique

[0002] A motor controller is an electronic device used to control the operation of an electric motor. It realizes functions such as starting, stopping, speed regulation, forward and reverse rotation, and protection control of the motor by adjusting parameters such as the current, voltage, frequency, and phase sequence of the motor. With the gradual increase in the ownership of electric vehicles, as a key component of electric vehicles, vehicle manufacturers pay more and more attention to the design of motor controllers. However, the space of the motor controller itself is limited, and Hall sensors and the like are usually welded separately on the PCB (Printed Circuit Board), which has many disadvantages. For example, due to the cramped space, manual assembly of Hall sensors is required, it is difficult to achieve production line automation, the efficiency is low, and at the same time, it is easy to cause the Hall sensor to be installed insecurely, affecting the performance of the motor. Content of the Utility Model

[0003] In view of this, the utility model aims to propose a sensor sheath structure, which has a good protective effect on the sensor and can improve the installation firmness of the sensor.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A sensor sheath structure includes a sheath body and a connecting member provided on the sheath body;

[0006] The sheath body has a receiving cavity with one end open and a through hole communicating with the other end of the receiving cavity, and a limiting portion is provided on the sheath body. The sensor can be inserted into the receiving cavity from the open end, and the limiting portion can abut against the sensor to limit the insertion displacement of the sensor. The through hole is used for the PIN pins of the sensor to pass through;

[0007] The connecting member is used to connect with the installation carrier of the sensor.

[0008] Further, the sheath body has a main body portion and convex blocks provided at two opposite ends of the main body portion;

[0009] The receiving cavity is provided on the main body portion, and the convex blocks are used for being grabbed by an external suction cup, and at least one of the convex blocks is provided with the connecting member.

[0010] Further, the main body portion is in a long strip shape, and the convex blocks are located at both ends in the length direction of the main body portion;

[0011] In the width direction of the main body portion, the convex block is recessed with respect to the main body portion.

[0012] Furthermore, the connecting member includes a needle body disposed on the convex block, and the needle body is made of metal.

[0013] Furthermore, the needle body protrudes outward with respect to the main body portion along the insertion direction of the sensor;

[0014] A guiding surface is provided at the free end of the needle body, and the guiding surface is used to guide the needle body to insert into the mounting carrier.

[0015] Furthermore, the needle body is injection-molded together with the sheath body.

[0016] Furthermore, the limiting portion includes a limiting plate disposed in the through hole, and the limiting plate can abut against the sensor to limit the insertion displacement of the sensor in the receiving cavity.

[0017] Furthermore, the limiting plates are provided on both opposite sides of the through hole.

[0018] Compared with the prior art, the present utility model has the following advantages:

[0019] The sensor sheath structure of the present utility model can provide good protection for the sensor by providing a receiving cavity for the sensor to insert, and the setting of the limiting portion can limit the displacement of the sensor, which is beneficial to ensuring the normal operation of the sensor; in addition, the setting of the connecting member can connect the sheath body to the mounting carrier, thereby improving the connection firmness between the sensor and the mounting carrier.

[0020] In addition, the sheath body has a main body portion and convex blocks provided at two opposite ends of the main body portion, and the convex blocks are used for being grabbed by an external suction cup, which is convenient for realizing automated production. And in the width direction of the main body portion, the convex block is recessed with respect to the main body portion, which is convenient for the external suction cup to grab the convex block.

[0021] Secondly, the connecting member includes a needle body made of metal, which has a simple structure. At the same time, it is also convenient for the connecting member to be welded to the mounting carrier, and can also ensure good connection firmness between the two. By providing a guiding surface at the free end of the needle body, it is convenient for the needle body to insert into the mounting carrier, which can improve the connection efficiency between the two. Injecting the needle body and the sheath body together is convenient for processing and manufacturing, and can also improve the connection firmness between the two.

[0022] In addition, the limiting portion includes a limiting plate disposed in the through hole, which has a simple structure and is convenient for design and implementation. By providing the limiting plates on both opposite sides of the through hole, the limiting effect on the sensor can be improved, which is beneficial to ensuring the normal operation of the sensor.

[0023] Another object of the present utility model is to provide a motor, wherein a sensor sheath structure as described above is provided in the controller of the motor, and a sensor is provided in the accommodation cavity.

[0024] Further, the sensor is a Hall sensor.

[0025] For the motor of the present utility model, by providing the sensor sheath structure as described above, it can provide good protection for the sensor, which is beneficial to ensuring the normal operation of the sensor, and thus beneficial to ensuring the working performance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0027] Figure 1 is a schematic structural diagram of the sensor sheath structure according to an embodiment of the present utility model from a first perspective;

[0028] Figure 2 is a schematic structural diagram of the sensor sheath structure according to an embodiment of the present utility model from a second perspective;

[0029] Figure 3 is a schematic structural diagram of the sensor sheath structure according to an embodiment of the present utility model from a third perspective;

[0030] Figure 4 is a schematic structural diagram of the sensor sheath structure according to an embodiment of the present utility model from a fourth perspective;

[0031] Figure 5 is a schematic structural diagram of the sensor sheath structure according to an embodiment of the present utility model from a fifth perspective;

[0032] Figure 6 is an assembly state diagram of the sensor sheath structure and the sensor according to an embodiment of the present utility model;

[0033] Figure 7 is an assembly state diagram of the sensor sheath structure and the sensor from another perspective according to an embodiment of the present utility model;

[0034] Figure 8 is a cross-sectional view of the sensor sheath structure and the sensor in an assembled state according to an embodiment of the present utility model.

[0035] Description of the reference numerals:

[0036] 1. Sheath body; 2. Sensor; 3. PCB board; K. Groove

[0037] 101. Main body part; 102. Bump; 103. Needle body; 104. Limiting plate;

[0038] 201. PIN needle; 1031. Guiding surface. Specific implementation manner

[0039] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0040] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present utility model, it should be noted that in this embodiment, the orientation words such as "upper, lower, left, right, front, back" are defined based on the up and down direction, left and right direction, and front and back direction of the vehicle. Among them, the up and down direction of the vehicle is also the height direction (Z direction) of the vehicle, the front and back direction of the vehicle is also the length direction (X direction) of the vehicle, and the left and right direction of the vehicle is also the width direction (Y direction) of the vehicle. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connected", "connecting parts" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0043] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0044] In view of the limited space of the existing motor controller itself, Hall sensors and the like are usually welded separately on the PCB board 3 (Printed Circuit Board). Due to the cramped space, manual assembly of Hall sensors is required, which is difficult to achieve production line automation, with low efficiency. At the same time, it is also easy to cause the Hall sensor to be insecurely installed, affecting the performance of the motor. This embodiment particularly proposes a novel sensor sheath structure, including a sheath body 1 and a connecting member provided on the sheath body 1.

[0045] Among them, the sheath body 1 has a receiving cavity with one end open, and a through hole communicating with the other end of the receiving cavity. A limiting portion is provided on the sheath body 1. The sensor 2 can be inserted into the receiving cavity from the open end, and the limiting portion can abut against the sensor 2 to limit the insertion displacement of the sensor 2. The through hole is used for the PIN pin 201 of the sensor 2 to pass through. And the connecting member is used to connect with the mounting carrier of the sensor 2.

[0046] The sensor sheath structure of this embodiment can provide good protection for the sensor 2 by providing a receiving cavity for the sensor 2 to insert. The setting of the limiting portion can limit the displacement of the sensor 2, which is beneficial to ensuring the normal operation of the sensor 2. In addition, the setting of the connecting member can connect the sheath body 1 to the mounting carrier, thereby improving the connection firmness between the sensor 2 and the mounting carrier.

[0047] Based on the above overall introduction, an exemplary structure of the sensor sheath structure of this embodiment is referred to Figures 1 to 8 as shown in. As a preferred implementation manner, the sheath body 1 of this embodiment is generally rectangular for easy processing and manufacturing. Specifically, as shown in Figures 1 to 5 the sheath body 1 of this embodiment has a main body portion 101 and bumps 102 provided at two opposite ends of the main body portion 101. The above-mentioned receiving cavity is provided on the main body portion 101. The bumps 102 are used for external suction cups to grasp, and at least one of the bumps 102 is provided with a connecting member. Such a design facilitates the external suction cup to grasp the sheath body 1 by grasping the bumps 102, facilitating the realization of automated production. And, as a further implementation manner, the cross-section of the bump 102 of this embodiment is rectangular, which is convenient for processing and manufacturing, and at the same time can have a good contact area with the external suction cup, improving the adsorption firmness.

[0048] Among them, for the convenience of explaining this embodiment, the sensor 2 is taken as an example of a Hall sensor for explanation. Of course, in addition to being a Hall sensor, the sensor sheath structure of this embodiment can also be applied to other sensors 2. And based on the fact that the existing Hall sensors are usually rectangular, for the convenience of processing and manufacturing, as Figure 1 and Figure 2As shown in the figure, the main body portion 101 is in a strip shape, and the bumps 102 are located at both ends of the main body portion 101 in the length direction. Moreover, in the width direction of the main body portion 101, the bumps 102 are recessed with respect to the main body portion 101.

[0049] Moreover, in combination Figures 6 to 8 As shown in the figure, the main body portion 101 preferably conforms to the shape of the sensor 2. And when the sensor 2 is inserted into the accommodation cavity, a gap is formed between the side wall of the accommodation and the sensor 2, so as to facilitate the insertion of the sensor 2. Such a design is conducive to fully reducing the volume of the main body portion 101, and further reducing the overall occupied space of the sheath body 1. In addition, to further facilitate the insertion of the sensor 2 into the accommodation cavity, as Figure 1 As shown in the figure, the main body portion 101 is provided with a groove K at the open end of the accommodation cavity. This groove K can avoid fingers when inserting the sensor 2, which is conducive to inserting the sensor 2 deeper into the accommodation cavity, facilitating the connection between the sensor 2 and the mounting carrier, and also conducive to weight reduction. In this embodiment, the bumps 102 are recessed with respect to the main body portion 101, which is conducive to being grasped by an external suction cup and can improve the grasping firmness.

[0050] In combination Figures 1 to 3 As shown in the figure, as a preferred embodiment, the connecting member of this embodiment includes a needle body 103 provided on the bump 102, and the needle body 103 is made of metal. With such a setting, it is convenient to weld the needle body 103 to the mounting carrier. Generally, the mounting carrier can be a PCB board 3. Moreover, the setting of the needle body 103 enables the needle body 103 and the PIN pin 201 of the sensor 2 to be fixed on the PCB board 3 by wave soldering at the same time, which can reduce the process and save costs. In addition, it can more firmly fix the sensor 2 on the PCB board 3, ensure the stability of the signal acquisition of the sensor 2, and at the same time, the sheath body 1 can play a good protective role for the sensor 2 and limit the offset amount of the sensor 2.

[0051] As Figure 1 and Figure 4 As shown in the figure, as a preferred embodiment, the cross-section of the needle body 103 of this embodiment is rectangular, so as to have better structural strength, thereby improving the connection firmness between the sheath body 1 and the PCB board 3. In addition, as Figure 1 and Figure 2 As shown in the figure, as a further embodiment, a needle body 103 is provided on each bump 102 to further improve the connection firmness between the sheath body 1 and the PCB. In addition, continue to refer to Figure 1 and Figure 2As shown, as a preferred embodiment, the needle body 103 protrudes outward relative to the main body portion 101 along the insertion direction of the sensor 2, so as to facilitate the connection between the needle body 103 and the PCB board 3. At the same time, a guiding surface 1031 is provided at the free end of the needle body 103, and the guiding surface 1031 is used to guide the needle body 103 to be inserted into the mounting carrier. By providing the guiding surface 1031 at the free end of the needle body 103, it is convenient for the needle body 103 to be inserted onto the PCB board 3, and the connection efficiency between the two can be improved.

[0052] In addition, as a preferred embodiment, the needle body 103 of this embodiment is injection-molded together with the sheath body 1. Such a setting facilitates processing and manufacturing, and at the same time can also improve the connection firmness between the two. Among them, the sheath body 1 can be specifically made of nylon 66 to have a good insulation effect. It should be noted that the cross-section of the needle body 103 is not limited to a rectangle. In addition, in addition to injection-molding the needle body 103 and the sheath body 1 together, other conventional methods can also be used to connect them together, and the sheath body 1 can also be made of other insulating materials.

[0053] Combined with Figure 3 、 Figure 4 and Figure 8 As shown, as a preferred embodiment, the limiting portion of this embodiment includes a limiting plate 104 provided in the through hole. The limiting plate 104 can abut against the sensor 2 to limit the insertion displacement of the sensor 2 in the accommodation cavity. This structure is simple and convenient for design and implementation. And, as a preferred embodiment, as Figure 4 and Figure 8 shown, limiting plates 104 are provided on both opposite sides of the through hole. In this embodiment, by providing limiting plates 104 on both opposite sides of the through hole, the limiting effect on the sensor 2 can be improved, which is beneficial to ensuring the normal operation of the sensor 2.

[0054] The sensor sheath structure of this embodiment, by adopting the above structure, can not only fully protect the structure of the sensor 2, but also limit the tolerance of the sensor 2, so that the assembly can be automated and the assembly difficulty can be reduced.

[0055] In addition, this embodiment also relates to a motor controller, which is provided with the above sensor sheath structure and a sensor 2 provided in the accommodation cavity. Among them, as a further embodiment, the sensor 2 is a Hall sensor.

[0056] The motor controller of this embodiment, by providing the above sensor sheath structure, can have a good protective effect on the sensor 2, which is beneficial to ensuring the normal operation of the sensor 2, and thus beneficial to ensuring the working performance of the motor.

[0057] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sensor sheath structure, characterized in that: It comprises a sheath body (1), and a connecting piece arranged on the sheath body (1); The sheath body (1) has a receiving cavity with an open end and a through hole communicating with the other end of the receiving cavity, and a limiting portion is provided on the sheath body (1), the sensor (2) can be inserted into the receiving cavity through the open end, and the limiting portion can abut against the sensor (2) to limit the insertion displacement of the sensor (2), and the through hole is used for allowing a PIN needle (201) of the sensor (2) to pass through; The connecting piece is used to be connected to a mounting carrier of the sensor (2).

2. The sensor sheath structure according to claim 1, characterized in that: The sheath body (1) comprises a main body portion (101) and protrusions (102) arranged at two opposite ends of the main body portion (101); The accommodating cavity is arranged on the main body part (101), the protrusion (102) is used for being grasped by an external suction cup, and the connecting piece is arranged on at least one of the protrusions (102).

3. The sensor sheath structure according to claim 2, characterized in that: The main body part (101) is in the shape of an elongated strip, and the protrusions (102) are located at two ends of the main body part (101) in the length direction; In the width direction of the main body part (101), the protrusion (102) is arranged concavely relative to the main body part (101).

4. The sensor sheath structure according to claim 2, characterized in that: The connecting piece comprises a needle body (103) arranged on the protrusion (102), and the needle body (103) is made of metal.

5. The sensor sheath structure according to claim 4, characterized in that: The needle body (103) is arranged to protrude outward relative to the main body (101) along the insertion direction of the sensor (2); The free end of the needle body (103) is provided with a guide surface (1031), and the guide surface (1031) is used to guide the needle body (103) to be inserted into the installation carrier.

6. The sensor sheath structure according to claim 4, characterized in that: The needle body (103) and the sheath body (1) are injection molded together.

7. The sensor sheath structure according to any one of claims 1 to 6, characterized in that: The limiting portion comprises a limiting plate (104) arranged in the through hole, and the limiting plate (104) can abut against the sensor (2) to limit the insertion displacement of the sensor (2) in the accommodating cavity.

8. The sensor sheath structure according to claim 7, characterized in that: The limiting plates (104) are provided on two opposite sides of the through hole.

9. A motor controller, characterized in that: The controller of the motor is provided with a sensor sheath structure as claimed in any one of claims 1 to 8, and a sensor (2) arranged in the accommodating cavity.

10. The motor controller according to claim 9, characterized in that: The sensor (2) is a Hall sensor.

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