Protective structure of rotary transformer sensor

Abstract

The utility model discloses a rotary transformer sensor protection structure, and belongs to the technical field of protection structures. The device mainly comprises a rotary transformer assembly which is used for detecting internal data of a motor; the protection assembly is arranged at one end of the rotary transformer assembly, and a wire rod is installed in the wire groove; the upper protective cover is arranged at one end of the rotary transformer assembly, and the wiring block is located at the bottom of the upper protective cover; the welding ribs are arranged at the two ends of the welding ribs, the welding ribs adopt an ultrasonic plastic welding process, the welding ribs are arranged at the two ends of the welding ribs, the welding ribs are arranged at the two ends of the welding ribs, the welding ribs are arranged at the two ends of the welding ribs, and the welding ribs are arranged at the two ends of the welding ribs. Thus, seamless welding can be achieved between the upper protective cover and the lower protective cover, the welding strength is high, the sealing performance is good, the water-tight performance can be guaranteed, redundant gaps can be prevented from being generated between the upper protective cover and the lower protective cover, and meanwhile the waterproof and dustproof effects are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of protective structures, and in particular to a protective structure for a rotary transformer sensor. Background Art

[0002] Resolver sensor, also known as resolver, is usually installed inside the motor. It is a sensor used to detect the rotational position or angle in a mechanical or physical system. At the same time, the resolver can measure the angle or position of the rotating part relative to a reference point and convert this information into electrical or digital signal output;

[0003] The current resolver sensor structure consists of a stator, on which a coil is wound, and a rotor is arranged inside the stator, on which a coil is wound, and the inside of the stator is connected to the conveying shaft of the motor, and a connector for providing power is installed at the end of the stator, and the connector is connected to an external interface, and a plug is arranged inside the connector, and a protective structure is arranged outside the connector, and the protective structure includes upper and lower protective covers;

[0004] However, in the prior art, the upper and lower protective covers on the outside of the connector of the resolver sensor are respectively used in conjunction with the buckle and the notch, which is difficult to assemble and inefficient. In addition, this structure causes a certain gap between the upper and lower protective covers, making it difficult to waterproof and dustproof the upper and lower protective covers.

[0005] Therefore, it is necessary to provide a rotary sensor protection structure to solve the above problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is to provide a protection structure for a rotary sensor, which solves the problem of gaps existing in the protective cover during installation.

[0008] The technical solution adopted by the present application to solve the technical problem is: a rotary sensor protection structure, comprising:

[0009] A resolver component, which is used to detect internal data of the motor;

[0010] A protection component is provided at one end of the resolver component, and is used to protect the input end of the resolver component. The protection component includes:

[0011] A junction block, which is arranged at one end of the resolver assembly, and has a plurality of wire grooves formed thereon, wherein wires are installed inside the wire grooves;

[0012] An upper protective cover, which is arranged at one end of the resolver assembly, and the wiring block is located at the bottom of the upper protective cover;

[0013] A lower protective cover is arranged at one end of the resolver assembly, and the wiring block is located on the lower protective cover.

[0014] Furthermore, the junction block is provided with copper pins, which are used to achieve continuous transmission of current or signal.

[0015] Furthermore, the upper protective cover is provided with grooves at both ends of the bottom close to the welding rib, and the grooves are adapted to the shape of the welding rib.

[0016] Furthermore, a plurality of isolation blocks are fixedly mounted on the bottom of the upper protective cover, and through holes are provided inside the isolation blocks. The through holes are adapted to the diameter of the wires, and the wires pass through the through holes.

[0017] Furthermore, a plurality of groups of circular bosses are fixedly installed inside the upper protective cover, and a plurality of groups of circular holes are opened on the wiring block near the circular bosses, and the circular holes and the circular bosses are adapted to each other.

[0018] The beneficial effect of the present application is that the present application provides a rotational sensor protection structure, which changes the original clip and slot fixing method of the upper protective cover and the lower protective cover, and provides welding ribs at both ends of the welding ribs, and the welding ribs adopt ultrasonic plastic welding technology, so that seamless welding can be achieved between the upper protective cover and the lower protective cover, with high welding strength, good sealing, and guaranteed water and air tightness. It can also avoid the upper protective cover and the lower protective cover from having extra gaps, while also achieving waterproof and dustproof effects.

[0019] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0021] In the attached picture:

[0022] Figure 1 This is an overall schematic diagram of a rotary sensor protection structure in this application;

[0023] Figure 2 for Figure 1 Schematic diagram of the isolation block of the middle protection component;

[0024] Figure 3 for Figure 1 Schematic diagram of the explosion of the upper protective cover and the lower protective cover of the middle protective assembly;

[0025] Figure 4 for Figure 3 Schematic diagram of the circular boss of the middle protection component;

[0026] Among them, the reference numerals in the figure are:

[0027] 1. Rotary transformer assembly; 11. Keyway; 2. Protective assembly; 21. Upper protective cover; 22. Lower protective cover; 23. Copper needle; 24. Isolation block; 25. Round boss; 26. Wiring block; 27. Round hole; 28. Welding rib; 29. ​​Boss. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] like Figure 1-Figure 3 As shown, the present application provides a resolver sensor protection structure, comprising a resolver component 1, and a protection component 2 fixedly mounted at one end of the resolver component 1, wherein the resolver component 1 is used to detect internal data of the motor, and the protection component 2 is used to protect the input end of the resolver component 1;

[0031] Meanwhile, the protection component 2 includes a wiring block 26, which is used to connect an external power supply. Meanwhile, a plurality of wire grooves are provided inside the wiring block 26, and wires are installed at the wire grooves. The wiring block 26 fixes the wires through the wire grooves, and a copper needle 23 is provided on the wiring block 26, so that the resolver component 1 can realize continuous transmission of current or signal during operation through the wiring block 26;

[0032] The junction block 26 is provided with an upper protective cover 21, and a lower protective cover 22 is fixedly installed at the bottom of the upper protective cover 21. The upper protective cover 21 and the lower protective cover 22 can be assembled and installed, so that the parts inside the resolver can be sealed and protected by the upper protective cover 21 and the lower protective cover 22;

[0033] A key slot 11 is provided at the outer circumference of the resolver assembly 1, and a protrusion 29 is fixedly installed at one end of the upper protective cover 21 close to the key slot 11. The protrusion 29 is adapted to the inside of the key slot 11, so that when the resolver assembly 1 and the protective assembly 2 are assembled and installed, the key slot 11 can be inserted into the protrusion 29, so as to improve the stability between the two.

[0034] In the prior art, the upper protective cover 21 and the lower protective cover 22 are used in cooperation with each other through buckles and notches. Since the buckles and notches are not sealed, a gap is generated between the two, which makes it easy for external moisture or dust to enter the interior. For this reason:

[0035] like Figure 3 As shown, both ends of the lower protective cover 22 are provided with welding ribs 28, and at the same time, grooves matching the shape of the welding ribs 28 are provided at both ends of the bottom of the upper protective cover 21 near the welding ribs 28. At the same time, the welding ribs 28 are made by ultrasonic plastic welding technology, so that the welding process between the upper protective cover 21 and the lower protective cover 22 can be completed in a short time through the welding ribs 28. Compared with the traditional snap-fit ​​method, the production efficiency can be significantly improved, and at the same time, the generation of excess gaps between the upper protective cover 21 and the lower protective cover 22 can be avoided, so as to prevent external moisture or dust from entering the interior of the protective component 2;

[0036] Ultrasonic welding fuses plastic parts together through localized high temperatures, creating a connection that is usually stronger than snap fit, which helps ensure better stability and durability of the product during use;

[0037] At the same time, ultrasonic welding does not require additional snap-on parts and assembly procedures, so it can reduce production costs, and ultrasonic welding can achieve seamless connection, making the product appearance more neat and beautiful;

[0038] When the wire is installed inside the junction block 26, in the prior art, the junction block 26 will contact the copper needle 23, which will cause the wire inside the junction block 26 to touch the copper needle 23. In addition, the actual resolver sensor will continuously generate vibration and friction during assembly and use. Over a long period of time, the wire will continuously contact the copper needle 23, causing the wire to wear and lead to electrical transmission failure. Therefore:

[0039] like Figure 2 and Figure 4As shown, a plurality of isolation blocks 24 are fixedly installed at the bottom of the upper protective cover 21, and a through hole is opened inside the isolation block 24, which is adapted to the diameter of the wire so that the wire can pass through the position of the through hole, and there is a certain gap between the isolation block 24 and the inner top of the upper protective cover 21, and the gap is adapted to the clamping connection of one end of the copper needle 23, so that when the wire passes through the through hole, the isolation block 24 can prevent the wire from contacting the copper needle 23, thereby preventing the vibration or friction generated by the rotary sensor during use from affecting the wire;

[0040] At the same time, a plurality of groups of circular bosses 25 are fixedly installed inside the upper protective cover 21, and a plurality of groups of circular holes 27 are opened on the wiring block 26 near the circular bosses 25. At the same time, the circular holes 27 and the circular bosses 25 are adapted to each other, so that when installed between the upper protective cover 21 and the lower protective cover 22, the plurality of groups of circular bosses 25 will respectively enter the corresponding circular holes 27, so as to improve the overall stability of the resolver sensor.

[0041] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary sensor protection structure, characterized in that: include: A resolver component (1), the resolver component (1) being used to detect internal data of a motor; A protection component (2), the protection component (2) being arranged at one end of the resolver component (1), the protection component (2) being used to protect the input end of the resolver component (1), the protection component (2) comprising: A wiring block (26), the wiring block (26) being arranged at one end of the resolver assembly (1), the wiring block (26) being provided with a plurality of wire grooves, and wires being installed inside the wire grooves; An upper protective cover (21), the upper protective cover (21) being arranged at one end of the resolver assembly (1), and the wiring block (26) being located at the bottom of the upper protective cover (21); A lower protective cover (22), the lower protective cover (22) being arranged at one end of the resolver assembly (1), the wiring block (26) being located on the lower protective cover (22); A welding rib (28) is arranged on the lower protective cover (22).

2. The protective structure of a resolver sensor according to claim 1, characterized in that: The wiring block (26) is provided with a copper needle (23), and the copper needle (23) is used to achieve continuous transmission of current or signal.

3. The protective structure of a resolver sensor according to claim 1, characterized in that: The upper protective cover (21) is provided with grooves at both ends of the bottom close to the welding rib (28), and the grooves are adapted to the shape of the welding rib (28).

4. The protective structure of a resolver sensor according to claim 1, characterized in that: A plurality of groups of isolation blocks (24) are fixedly mounted on the bottom of the upper protective cover (21), and a through hole is provided inside the isolation block (24), and the through hole is adapted to the diameter of the wire.

5. The protective structure of a resolver sensor according to claim 1, characterized in that: A plurality of groups of circular bosses (25) are fixedly mounted inside the upper protective cover (21), and a plurality of groups of circular holes (27) are opened on the wiring block (26) near the circular bosses (25), and the circular holes (27) and the circular bosses (25) are mutually adapted.

6. The protective structure of a resolver sensor according to claim 1, characterized in that: A keyway (11) is provided on the outer circumference of the rotary transformer assembly (1), and a protrusion (29) is fixedly mounted on one end of the upper protective cover (21) close to the keyway (11), and the protrusion (29) is adapted to the inside of the keyway (11).

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