Quick-plug type detachable temperature sensor applied to monitoring electric vehicle motor copper bar

Abstract

The utility model discloses a copper bar quick-insertion type detachable temperature sensor applied to monitoring an electric vehicle motor, and relates to the technical field of quick installation and disassembly of temperature sensors. A quick-plug detachable temperature sensor applied to monitoring a motor copper bar of an electric vehicle comprises a plastic part and further comprises a metal buckle arranged on the plastic part. The metal buckle comprises a bottom surface part, a bent part, an inclined part and a pressing part; according to the utility model, the metal buckle is arranged on the plastic part, the thermistor for monitoring the temperature is attached to the metal buckle, and the metal buckle is inserted into the connected object through the pressing part and the bottom surface part on the metal buckle, so that the metal buckle is connected with the connected object, and the thermistor cannot be damaged while quick assembly and quick disassembly are realized; and meanwhile, the temperature of a connected object can be quickly conducted to the thermistor by using the metal buckle, so that quick monitoring response of the temperature is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of fast-installation and disassembly temperature sensors, in particular to a fast-insertion and disassembly temperature sensor used for monitoring copper bars of electric vehicle motors. Background Art

[0002] An important component of new energy electric vehicles is the electric motor. The hazards of electric vehicle motor overheating are multifaceted;

[0003] First, overheating of the motor will accelerate the aging of motor components, thus shortening the life of the motor; this is because high temperature environment will cause the performance of materials inside the motor to deteriorate. For example, the insulation material of the coil may accelerate aging due to high temperature, which in turn causes motor failure;

[0004] Secondly, if the motor overheats continuously, it is easy to cause damage to the internal parts of the motor. For example, the bearings and magnetic steel may be deformed or damaged due to high temperature, which may lead to the overall failure of the motor. This will affect the driving performance of the electric vehicle and may even cause the electric vehicle to fail to operate normally.

[0005] In addition, motor overheating may also lead to more serious consequences; for example, the high temperature inside the motor may cause the insulation material to fail, resulting in safety hazards such as short circuits and fires; in order to ensure the long life of the motor and to achieve its best performance, the temperature of the motor also needs to be continuously monitored, so it is crucial to monitor the temperature of the stator winding, which is an important means for the motor to fully utilize all its advantages and avoid the risk of overheating;

[0006] The traditional installation method of motor products is generally to bury the winding directly. If the motor design allows, the temperature sensor can be buried directly inside the motor winding; this can more accurately sense the temperature inside the motor and avoid the influence of heat transfer; the specific operation steps include selecting a suitable location, cleaning the winding surface, drilling holes to bury the sensor, etc.; but this buried winding installation method is easy to cause damage to the temperature sensor head. Excessive pressure during the burial process causes the NTC to crack, resulting in abnormal resistance of the temperature sensor, or other parts of the sensor are pierced, causing the temperature sensor to short-circuit. For this reason, we propose a quick-insert and detachable temperature sensor for monitoring the copper busbar of electric vehicle motors. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor, which can overcome the above problems or at least partially solve the above problems.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor, comprising a plastic part, and also comprising: a metal buckle arranged on the plastic part; the metal buckle comprises a bottom portion, a bending portion, an inclined portion, and a pressing portion, and is used to connect the plastic part to a connected object through the metal buckle; a thermistor attached to the bottom portion of the metal buckle, and the thermistor is connected to an electric wire.

[0009] Preferably, the plastic part comprises a first mounting end and a second mounting end which are integrally formed, and the metal buckle is integrally formed with the plastic part by injection molding.

[0010] Furthermore, a boss is provided on the second mounting end, and the wire cores of the electric wire are respectively located on both sides of the boss.

[0011] Furthermore, a mounting groove is provided on the second mounting end, the thermistor is located in the mounting groove, and the thermistor and the wire are encapsulated by high temperature resistant epoxy resin and plastic parts.

[0012] Furthermore, the metal buckle also includes a bent portion and a pressing plate formed by opening a groove on the pressing portion.

[0013] Furthermore, a snap groove is provided on the first mounting end, and the inclined portion, the pressing portion, the bent portion and the pressing plate are all located in the snap groove.

[0014] Furthermore, a surface of the bottom surface portion close to the pressure plate is embedded in the surface of the buckle groove.

[0015] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model arranges a metal buckle on the plastic part, and attaches a thermistor for monitoring temperature to the metal buckle, and inserts the pressing part and the bottom surface part on the metal buckle on the connected object, so that the metal buckle is connected to the connected object, thereby realizing quick installation and quick removal without causing damage to the thermistor. At the same time, the metal buckle can also be used to quickly transfer the temperature on the connected object to the thermistor, thereby realizing a rapid monitoring response of the temperature.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor proposed by the utility model;

[0019] Figure 2This is a bottom view of a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor proposed by the utility model;

[0020] Figure 3 This is a structural schematic diagram of a first mounting end and a second mounting end of a quick-insertion detachable temperature sensor for monitoring a copper busbar of an electric vehicle motor, which is proposed in the utility model;

[0021] Figure 4 A schematic diagram of the connection between a metal buckle of a quick-insert detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor and a connected object proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the installation groove and boss of a quick-insert detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor proposed by the utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the thermistor and bottom portion of a quick-insert detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor proposed by the utility model;

[0024] Figure 7 The utility model is a schematic structural diagram of a metal buckle of a quick-insert and detachable temperature sensor for monitoring a copper busbar of an electric vehicle motor.

[0025] In the figure: 1. plastic part; 10. snap-fit ​​groove; 11. first mounting end; 12. second mounting end; 13. boss; 14. wire; 15. mounting groove; 16. thermistor; 2. metal snap; 21. bottom surface; 22. bending portion; 23. inclined portion; 24. pressing portion; 25. bent portion; 26. pressure plate; 27. slot; 3. connected object. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] Example: Refer to Figure 1-Figure 7 A quick-insert detachable temperature sensor for monitoring copper busbars of electric vehicle motors includes a plastic part 1, and also includes: a metal buckle 2 arranged on the plastic part 1; the metal buckle 2 includes a bottom portion 21, a bending portion 22, an inclined portion 23, and a pressing portion 24, which is used to connect the plastic part 1 to a connected object 3 through the metal buckle 2; a thermistor 16 attached to the bottom portion 21 of the metal buckle 2, and the thermistor 16 is connected to a wire 14;

[0028] The plastic part 1 comprises an integrally formed first mounting end 11 and a second mounting end 12, and the metal buckle 2 is integrally formed with the plastic part 1 by injection molding;

[0029] The second mounting end 12 is provided with a mounting groove 15, in which the thermistor 16 is located. The thermistor 16 and the wire 14 are packaged with the plastic part 1 by means of a high temperature resistant epoxy resin.

[0030] The metal buckle 2 further includes a bent portion 25 and a pressing plate 26 formed by opening a slot 27 on the pressing portion 24;

[0031] When the device is in use, the thermistor 16 for monitoring temperature is attached to the bottom surface 21 of the metal buckle 2, and the thermistor 16 is inserted into the connected object 3 through the metal buckle 2. Since the thermistor 16 is connected to the metal buckle 2, when the connected object 3 heats up, the temperature can be quickly transferred to the thermistor 16 for monitoring temperature through the metal buckle 2, so that the temperature can be monitored more quickly while being convenient for installation and disassembly;

[0032] Therefore, the device is provided with a metal buckle 2 on the plastic part 1, and the thermistor 16 for monitoring the temperature is attached to the metal buckle 2, and the metal buckle 2 is inserted into the connected object 3 through the pressing part 24 and the bottom part 21 on the metal buckle 2, so that the metal buckle 2 is connected to the connected object 3, thereby achieving quick installation and quick removal without causing damage to the thermistor 16, and at the same time, the metal buckle 2 can be used to quickly transfer the temperature on the connected object 3 to the thermistor 16, thereby achieving a rapid monitoring response of the temperature.

[0033] A boss 13 is provided on the second mounting end 12, and the cores of the wire 14 are respectively located on both sides of the boss 13. The boss 13 can separate the cores on the wire 14 to avoid the situation where the cores contact each other during packaging and cause a short circuit.

[0034] A buckle groove 10 is provided on the first mounting end 11, and the inclined portion 23, the pressing portion 24, the bent portion 25, and the pressing plate 26 are all located in the buckle groove 10, which can effectively limit the metal buckle 2. At the same time, when the metal buckle 2 is inserted into the connected object 3, the metal buckle 2 can be prevented from being skewed, thereby making the connection between the metal buckle 2 and the connected object 3 more firmly.

[0035] The provision of the bent portion 25 can facilitate the insertion of the metal buckle 2 onto the connected object 3 .

[0036] The side of the bottom surface 21 close to the pressing plate 26 is embedded in the surface of the buckle groove 10, which makes the connection between the metal buckle 2 and the plastic part 1 more secure;

[0037] In one embodiment, a side of the bottom portion 21 close to the pressure plate 26 is embedded in the surface of the buckle groove 10, and a side of the bottom portion 21 close to the pressure plate 26 protrudes from the surface of the buckle groove 10. Therefore, when the metal buckle 2 is connected to the connected object 3, both sides of the connected object 3 can contact the metal buckle 2, so that the temperature can be transferred to the thermistor 16 faster.

[0038] The utility model provides a metal buckle 2 on a plastic part 1, and attaches a thermistor 16 for monitoring temperature to the metal buckle 2, and inserts the metal buckle 2 on a connected object 3 through a pressing portion 24 and a bottom portion 21 on the metal buckle 2, so that the metal buckle 2 is connected to the connected object 3, thereby achieving quick installation and quick removal without causing damage to the thermistor 16, and at the same time, the metal buckle 2 can be used to quickly conduct the temperature of the connected object 3 to the thermistor 16, thereby achieving a rapid monitoring response of the temperature.

[0039] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the present invention can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor, comprising a plastic part (1), characterized in that: Also includes: A metal buckle (2) disposed on the plastic part (1); The metal buckle (2) comprises a bottom surface portion (21), a bent portion (22), an inclined portion (23), and a pressing portion (24), and is used to connect the plastic component (1) and the connected object (3) through the metal buckle (2); A thermistor (16) is attached to the bottom surface (21) of the metal buckle (2), and the thermistor (16) is connected to the wire (14).

2. According to claim 1, a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor is characterized in that: The plastic part (1) comprises a first mounting end (11) and a second mounting end (12) which are integrally formed, and the metal buckle (2) and the plastic part (1) are integrally formed by injection molding.

3. According to claim 2, a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor is characterized in that: A boss (13) is provided on the second mounting end (12), and the wire cores of the electric wire (14) are respectively located on both sides of the boss (13).

4. According to claim 3, a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor is characterized in that: The second mounting end (12) is provided with a mounting groove (15), the thermistor (16) is located in the mounting groove (15), and the thermistor (16) and the wire (14) are encapsulated by high temperature resistant epoxy resin and the plastic part (1).

5. According to claim 2, a quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor is characterized in that: The metal buckle (2) also includes a bent portion (25) and a pressing plate (26) formed by opening a groove (27) on the pressing portion (24).

6. The quick-insert and detachable temperature sensor for monitoring the copper busbar of an electric vehicle motor according to claim 5 is characterized in that: A snap-fit ​​groove (10) is provided on the first mounting end (11), and the inclined portion (23), the pressing portion (24), the bent portion (25), and the pressing plate (26) are all located in the snap-fit ​​groove (10).

7. A quick-insert and detachable temperature sensor for monitoring copper bars of electric vehicle motors according to claim 6, characterized in that: A surface of the bottom surface portion (21) close to the pressing plate (26) is embedded in the surface of the buckle groove (10).

Images