Oil temperature detection device, speed reducer and vehicle
By designing a simplified oil temperature detection device, including a reducer housing, a temperature sensor, and a data acquisition unit, the problem of complex oil temperature detection in existing technologies is solved, and the accuracy and efficiency of reducer performance testing are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHERY NEW ENERGY AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-02
AI Technical Summary
Existing technologies use overly complex oil temperature detection devices within reducers, which affects the accuracy of performance testing.
Design an oil temperature detection device that includes a reducer housing, a temperature sensor, an oil drain plug, and a data acquisition unit. The temperature sensor detects and records the oil temperature inside the reducer, and the data acquisition unit is used for data processing and display.
It achieves simplified oil temperature detection, improves the accuracy and efficiency of reducer performance testing, is applicable to various types of reducers, and reduces testing costs.
Smart Images
Figure CN224315460U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, specifically to an oil temperature detection device, a speed reducer, and a vehicle. Background Technology
[0002] A speed reducer is a mechanical device used to reduce the speed of the input shaft and increase the torque of the output shaft. Vehicles typically install speed reducers to lower engine speed and increase torque, thereby meeting the vehicle's power demands under different driving conditions and improving the efficiency of the transmission system and the vehicle's handling performance. The performance of the speed reducer is crucial to the vehicle's performance; therefore, before leaving the factory, speed reducers need to undergo tests on their durability, NVH (Noise, Vibration, and Harshness) levels, and efficiency. Since the oil temperature inside the speed reducer affects the viscosity of the gear oil, thus impacting various performance characteristics, the oil temperature inside the speed reducer needs to be controlled or recorded during performance testing to obtain more accurate results.
[0003] In related technologies, oil temperature detection devices for detecting the oil temperature inside the reducer are too complex. Utility Model Content
[0004] In view of this, this application provides an oil temperature detection device, a reducer, and a vehicle, which can detect and record the oil temperature inside the reducer using a simple structure.
[0005] On the one hand, embodiments of this application provide an oil temperature detection device, which includes a reducer housing, a temperature sensor, an oil drain plug, and a data acquisition unit;
[0006] The reducer housing has an oil drain hole, and the reducer housing contains oil.
[0007] The drain plug can be detachably inserted into the drain hole;
[0008] One end of the temperature sensor passes through the drain plug into the reducer housing and is located in the oil, while the other end is electrically connected to the data acquisition unit.
[0009] Optionally, the device further includes a seal that abuts against the inner surface of the drain plug;
[0010] One end of the temperature sensor passes through the drain plug and the seal in sequence to enter the reducer housing.
[0011] Optionally, the drain plug has a first through hole, the seal has a second through hole, and one end of the temperature sensor passes through the first through hole and the second through hole in sequence to enter the reducer housing;
[0012] The outer diameter of the seal is larger than the diameter of the first through hole.
[0013] Optionally, the device further includes an adhesive member, one side of which is bonded to the surface of the seal facing the drain plug, and the other side of which is bonded to the surface of the drain plug facing the seal.
[0014] Optionally, the outer diameter of the adhesive is the same as that of the seal.
[0015] Optionally, the seal includes a first part and a second part, with the two sides of the first part connected to the second part and the drain plug, respectively. The first part is a cylinder and the second part is a cone.
[0016] Optionally, the first portion has external threads;
[0017] The drain hole has an internal thread, and the external thread is threadedly engaged with the internal thread.
[0018] Optionally, the temperature sensor is a thermocouple sensor.
[0019] On the other hand, this application also provides a speed reducer, which includes an oil temperature detection device as described in any one of the above embodiments of this application.
[0020] On the other hand, this application also provides a vehicle that includes an oil temperature detection device as described in any one of the above embodiments of this application.
[0021] The oil temperature detection device provided in this application includes a reducer housing, a temperature sensor, a drain plug, and a data acquisition unit. One end of the temperature sensor passes through the drain plug and enters the reducer housing, where it is submerged in the oil. The other end is electrically connected to the data acquisition unit. By inserting the drain plug with the temperature sensor into the drain hole on the reducer housing, and activating the data acquisition unit, the unit can detect and record the oil temperature inside the reducer housing using the temperature sensor. This facilitates timely control and accurate recording of oil temperature data during reducer performance testing, thereby improving the accuracy of reducer performance test results. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of an oil temperature detection device provided in an embodiment of this application;
[0024] Figure 2 This is a schematic diagram of a portion of the structure of an oil temperature detection device provided in an embodiment of this application;
[0025] Figure 3 This is a side view schematic diagram of a portion of the structure of an oil temperature detection device provided in an embodiment of this application.
[0026] Figure label:
[0027] 100. Gearbox housing; 110. Oil drain hole;
[0028] 200. Temperature sensor;
[0029] 300, drain plug; 310, first through hole;
[0030] 400. Data Acquisition Device;
[0031] 500, Seal; 510, Second through hole; 520, First part; 530, Second part; 521, External thread;
[0032] 600. Adhesive components.
[0033] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0035] In the embodiments of this application, directional terms such as "upper," "lower," and "side" are generally used in the following ways: Figure 1The relative positions shown are based on established rules, and these directional terms are used merely to more clearly describe the structures and their relationships, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged. Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art.
[0036] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0037] Combination Figure 1 and Figure 2 As shown in the figure, this application embodiment provides an oil temperature detection device, which includes a reducer housing 100, a temperature sensor 200, an oil drain plug 300, and a data acquisition unit 400. It should be noted that the oil temperature detection device in this application embodiment can be applied to bench testing or whole-vehicle testing scenarios of reducers. When performing bench testing on a reducer, the reducer housing 100 in the oil temperature detection device provided in this application embodiment is the housing of the reducer under test. The original oil drain plug 300 on the reducer housing 100 under test can be removed, and the oil drain plug 300 equipped with the temperature sensor 200 can be installed into the oil drain hole 110 on the reducer housing 100 under test. During vehicle testing, the reducer housing 100 in the oil temperature detection device provided in this application embodiment is the reducer housing 100 on the vehicle under test. The drain plug 300 on the original reducer housing 100 on the vehicle under test can be removed, and the drain plug 300 with the temperature sensor 200 assembled on it can be assembled into the drain hole 110 of the reducer housing 100 on the vehicle under test. In some embodiments, the temperature sensor 200 is a thermocouple sensor.
[0038] The reducer housing 100 has an oil drain hole 110, and the reducer housing 100 contains oil. The oil drain plug 300 is removably inserted into the oil drain hole 110.
[0039] One end of the temperature sensor 200 passes through the drain plug 300 and enters the reducer housing 100, where it is submerged in oil. The other end is electrically connected to the data acquisition unit 400. It should be noted that the data acquisition unit 400 in this embodiment is capable of receiving and processing the oil temperature data detected by the temperature sensor 200.
[0040] It should be understood that when the performance of the reducer needs to be tested, after activating the data acquisition unit 400, the data acquisition unit 400 can detect and record the oil temperature inside the reducer housing 100 through the temperature sensor 200. This facilitates timely control and accurate recording of oil temperature data during reducer performance testing, thereby improving the accuracy of the reducer performance test results. It should be noted that the data acquisition unit 400 can be electrically connected to electronic devices with display functions, such as computers or mobile phones, allowing the electronic devices to receive and display oil temperature data in a timely manner. This allows testers to adjust the oil temperature promptly according to performance test conditions, or to more intuitively understand oil temperature changes under specific test conditions. Furthermore, since the drain plug 300 is detachably inserted into the drain hole 110, it is easier to assemble the drain plug 300 and temperature sensor 200 together onto the reducer housing 100, or to remove them together from the reducer housing 100, improving the assembly and replacement efficiency of the oil temperature detection device. In addition, the size of the drain hole 110 of different reducers is generally the same, so the same drain plug 300 can be used on a variety of different models of reducers. Thus, when the drain plug 300 and the temperature sensor 200 are assembled together, they can be used on a variety of reducers, which improves the utilization rate and applicability of the drain plug 300 with temperature detection function.
[0041] The following is in conjunction with the appendix Figures 1 to 3 The details and functions of the oil temperature detection device provided in the embodiments of this application will be described in more specific and detailed manner.
[0042] Combination Figure 1 and Figure 2 As shown, in some embodiments, the device further includes a seal 500 that abuts against the inner surface of the drain plug 300. One end of the temperature sensor 200 passes sequentially through the drain plug 300 and the seal 500 to enter the reducer housing 100. It should be understood that the seal 500 seals the drain plug 300, preventing oil leakage. It should be noted that the seal 500 is cold-resistant and heat-resistant, thus preventing damage from oil temperature changes and ensuring that the seal 500 maintains a good seal against the drain plug 300.
[0043] Combination Figure 2 and Figure 3As shown, in some embodiments, the drain plug 300 has a first through hole 310, and the seal 500 has a second through hole 510. One end of the temperature sensor 200 passes through the first through hole 310 and the second through hole 510 in sequence to enter the reducer housing 100. The outer diameter of the seal 500 is larger than the diameter of the first through hole 310. This arrangement ensures that the seal 500 provides a good seal around the first through hole 310 to prevent oil leakage from the first through hole 310, thereby improving the sealing performance of the reducer during performance testing and thus improving the accuracy of the test results.
[0044] like Figure 3 As shown, in some embodiments, the device further includes an adhesive 600, one side of which is bonded to the surface of the seal 500 facing the drain plug 300, and the other side of which is bonded to the surface of the drain plug 300 facing the seal 500. It should be noted that the adhesive 600 can be, for example, a cured adhesive. The adhesive 600 allows the seal 500 and the drain plug 300 to be assembled together, while also ensuring a tight seal between the seal 500 and the drain plug 300.
[0045] Combination Figure 3 As shown, in some embodiments, the outer diameter of the adhesive 600 is the same as that of the seal 500. This arrangement ensures that oil does not flow into the gap between the seal 500 and the drain plug 300, thereby ensuring that the seal 500 can effectively seal the drain plug 300.
[0046] Combination Figure 2 and Figure 3 As shown, in some embodiments, the seal 500 includes a first portion 520 and a second portion 530. The two sides of the first portion 520 are connected to the second portion 530 and the drain plug 300, respectively. The first portion 520 is cylindrical, and the second portion 530 is conical. It should be noted that the cylindrical first portion 520 can improve the stability of the seal 500 and prevent deformation. The conical second portion 530 can provide a guiding effect when the assembled seal 500 and drain plug 300 are installed into the drain hole 110, facilitating assembly. The first portion 520 and the second portion 530 can be an integrally formed structure.
[0047] like Figure 2 and Figure 3 As shown, in some embodiments, the first portion 520 has an external thread 521. The drain hole 110 has an internal thread (not shown), and the external thread 521 and the internal thread are threadedly engaged. This arrangement can improve the assembly efficiency and stability between the seal 500 and the reducer housing 100.
[0048] In summary, the oil temperature detection device provided in this application embodiment has a simple structure and low cost. Furthermore, since the same drain plug 300 equipped with the temperature sensor 200 can be adapted to different models of reducers, its applicability is high, improving the utilization rate of the oil temperature detection device and further saving costs.
[0049] On the other hand, this application also provides a speed reducer, which includes an oil temperature detection device as described in any one of the above embodiments of this application. It should be noted that the speed reducer provided in this application can be, for example, a speed reducer to be tested in bench testing or vehicle testing. By installing an oil temperature detection device on the speed reducer, the oil temperature during the testing process can be accurately and conveniently detected and recorded.
[0050] On the other hand, this application also provides a vehicle, which includes the oil temperature detection device as described in any one of the above embodiments of this application. It should be noted that the vehicle provided in this application embodiment can be, for example, a vehicle under test in a whole vehicle test. By installing the oil temperature detection device on the reducer of the vehicle under test, the oil temperature during the test process can be accurately and conveniently detected and recorded.
[0051] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.
[0052] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. An oil temperature detecting device characterized by comprising: The device includes a reducer housing (100), a temperature sensor (200), an oil drain plug (300), and a data acquisition unit (400). The reducer housing (100) has an oil drain hole (110), and the reducer housing (100) contains oil. The drain plug (300) is detachably inserted into the drain hole (110); One end of the temperature sensor (200) passes through the drain plug (300) into the reducer housing (100) and is located in the oil, while the other end is electrically connected to the data acquisition unit (400). The device further includes a seal (500) that abuts against the inner surface of the drain plug (300); One end of the temperature sensor (200) passes through the drain plug (300) and the seal (500) in sequence to enter the reducer housing (100); The device further includes an adhesive member (600), one side of which is bonded to the surface of the seal (500) facing the drain plug (300), and the other side is bonded to the surface of the drain plug (300) facing the seal (500). The adhesive component (600) is a cured adhesive.
2. The oil temperature detecting device according to claim 1, characterized by The drain plug (300) has a first through hole (310), the seal (500) has a second through hole (510), and one end of the temperature sensor (200) passes through the first through hole (310) and the second through hole (510) in sequence to enter the reducer housing (100); The outer diameter of the seal (500) is larger than the diameter of the first through hole (310).
3. The oil temperature detecting device according to claim 1, characterized by The outer diameter of the adhesive (600) is the same as that of the seal (500).
4. The oil temperature detecting device according to claim 1, characterized by The sealing element (500) includes a first part (520) and a second part (530). The two sides of the first part (520) are connected to the second part (530) and the drain plug (300) respectively. The first part (520) is a cylinder and the second part (530) is a cone.
5. The oil temperature detecting device according to claim 4, characterized by The first part (520) has an external thread (521); The drain hole (110) has an internal thread, and the external thread (521) is threadedly engaged with the internal thread.
6. The oil temperature detecting device according to claim 1, characterized by The temperature sensor (200) is a thermocouple sensor.
7. A speed reducer characterized by, The reducer includes an oil temperature detection device as described in any one of claims 1 to 6.
8. A vehicle characterized by comprising: The vehicle includes an oil temperature detection device as described in any one of claims 1 to 6.