High-temperature-resistant NTC sensor tightly attached to I-shaped copper bar for temperature measurement

Abstract

The utility model discloses a high-temperature-resistant NTC (Negative Temperature Coefficient) sensor tightly attached to an I-shaped copper bar for temperature measurement, and belongs to the field of temperature sensors. A high-temperature-resistant NTC sensor tightly attached to an I-shaped copper bar for temperature measurement comprises a heating component, an NTC temperature sensor body and a buckle assembly, an installation cavity is formed in the buckle assembly, the heating component is connected into the installation cavity in the buckle assembly, the heating component is tightly attached to the inner wall of the buckle assembly, and the NTC temperature sensor body is connected with the NTC temperature sensor body. The NTC temperature sensor body is tightly attached to the outer wall of the buckle assembly. The guide part is used for assembling a heating part and is arranged on the buckle assembly; the fixing part is used for fixing the heating component and is arranged at one end, far away from the guide part, of the buckle assembly; according to the utility model, the problems of assembling and fixing the motor heating component and the NTC temperature sensor are solved, and the heat conduction efficiency and the temperature change precision are improved; the heating part in the driving motor is convenient to assemble, the production efficiency is improved, and the heating part can be fixed and disassembled and is convenient to repair.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensors, in particular to a high-temperature resistant NTC sensor which is closely fitted to an I-shaped copper busbar for temperature measurement. Background Art

[0002] With the rapid development of new energy vehicles, the drive motor is the core component of new energy vehicles, and its performance directly affects the vehicle's power, environmental protection and safety; NTC temperature sensor, as the information source of the electronic control system of pure electric vehicles, is a key component of the electronic control system of pure electric vehicles and is also one of the core contents of research in the field of electric vehicle electronic technology.

[0003] The NTC temperature sensor is composed of NTC temperature sensing chip, packaging materials and other components; the vibration frequency inside the drive motor is high, and the temperature of the drive motor of an electric vehicle changes frequently in different environments. In addition, the temperature sensor and the internal heating components of the drive motor are difficult to assemble and are not convenient to disassemble and repair. This can easily lead to poor heat transfer efficiency and signal acquisition accuracy between the NTC temperature sensor and the internal heating components of the drive motor. In view of this, the present utility model is proposed. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes a high temperature resistant NTC sensor which is closely fitted to an I-shaped copper busbar for temperature measurement.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high temperature resistant NTC sensor for measuring temperature by tightly fitting an I-shaped copper bar, comprising a heating component and an NTC temperature sensor body, and also comprising:

[0007] A buckle assembly, wherein a mounting cavity is provided inside the buckle assembly, the heat generating component is connected to the mounting cavity in the buckle assembly, the heat generating component is closely fitted to the inner wall of the buckle assembly, and the NTC temperature sensor body is closely fitted to the outer wall of the buckle assembly;

[0008] A guide portion for assembling a heat-generating component, arranged on the buckle assembly;

[0009] The fixing portion for fixing the heating component is arranged on an end of the buckle assembly away from the guide portion.

[0010] Preferably, the buckle assembly is arranged in a U-shape, and the guide portion and the fixing portion are respectively arranged at two ends of the U-shaped buckle assembly.

[0011] Furthermore, both ends of the buckle assembly are respectively provided with a riveting structure for fixing the NTC temperature sensor body.

[0012] Furthermore, the riveting structure includes a first pressing plate and a second pressing plate, the first pressing plate and the second pressing plate wrap the NTC temperature sensor body, the first pressing plate and the second pressing plate are both provided with corresponding inclined surfaces, and the first pressing plate and the second pressing plate are both integrally formed with the buckle assembly.

[0013] Furthermore, a first pre-fixing plate and a second pre-fixing plate for pre-fixing the NTC temperature sensor body are respectively provided near the two rivet structures on the buckle assembly, and the first pre-fixing plate and the second pre-fixing plate are both integrally formed with the buckle assembly.

[0014] Furthermore, the buckle assembly is also integrally provided with a side plate for limiting the NTC temperature sensor body.

[0015] Preferably, a convex block and a protruding portion are provided on the heat-generating component, a groove is provided between the convex block and the protruding portion, and the fixing portion is arranged in the groove.

[0016] Preferably, the buckle assembly is made of metal.

[0017] Compared with the prior art, the utility model provides a high temperature resistant NTC sensor that fits tightly to the I-shaped copper bar for temperature measurement, which has the following beneficial effects:

[0018] 1. The high-temperature resistant NTC sensor that fits tightly to the I-shaped copper busbar for temperature measurement, the three parts of the NTC temperature sensor body, the buckle assembly and the heating component of the drive motor are tightly together, which can improve the heat transfer efficiency and the accuracy of the collected signal between the NTC temperature sensor body and the heating component of the drive motor. In order to facilitate the assembly and repair of the buckle assembly and the heating component 2, a fixing part is designed on one side of the buckle assembly, which can facilitate the fixing and disassembly of the heating component, and a guide part is designed on the other side of the buckle assembly, which can facilitate the assembly of the heating component and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper busbar, which is proposed in the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a high-temperature resistant NTC sensor that fits tightly against an I-shaped copper bar for temperature measurement proposed by the utility model. Figure 2 ;

[0021] Figure 3 This is a front view of a high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper busbar proposed by the utility model;

[0022] Figure 4This is a side cross-sectional view of a high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper busbar, as proposed by the utility model;

[0023] Figure 5 This is a left view of a high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper busbar proposed by the utility model;

[0024] Figure 6 This is a structural schematic diagram of a buckle assembly in a high-temperature resistant NTC sensor for measuring temperature by tightly fitting an I-shaped copper bar, which is proposed in the utility model;

[0025] Figure 7 This is a schematic structural diagram of a heating component in a high-temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper busbar, which is proposed by the utility model.

[0026] In the figure: 1. snap-fit ​​assembly; 101. first pressing plate; 102. second pressing plate; 103. first pre-fixing plate; 104. second pre-fixing plate; 105. side plate; 106. guide portion; 107. fixing portion; 108. mounting cavity; 2. heating component; 201. bump; 202. extension portion; 203. groove; 3. NTC temperature sensor body. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Reference Figure 1-Figure 7 A high-temperature resistant NTC sensor for measuring temperature by tightly fitting an I-shaped copper busbar comprises a heating component 2 and an NTC temperature sensor body 3, and also comprises a snap assembly 1. An installation cavity 108 is provided inside the snap assembly 1. The heating component 2 is connected to the installation cavity 108 in the snap assembly 1, and the heating component 2 is tightly fitted to the inner wall of the snap assembly 1, and the NTC temperature sensor body 3 is tightly fitted to the outer wall of the snap assembly 1; a guide portion 106 for assembling the heating component 2 is provided on the snap assembly 1, and a fixing portion 107 for fixing the heating component 2 is also provided on the snap assembly 1, and the fixing portion 107 is arranged on an end of the snap assembly 1 away from the guide portion 106.

[0030] In the utility model, the three parts of the NTC temperature sensor body 3, the buckle assembly 1 and the heating component 2 of the drive motor are tightly attached together, which can improve the heat transfer efficiency and the accuracy of the collected signal between the NTC temperature sensor body 3 and the heating component 2 of the drive motor. In order to facilitate the assembly and repair of the buckle assembly 1 and the heating component 2, a fixing portion 107 is designed on one side of the buckle assembly 1, which can facilitate the fixing and disassembly of the heating component 2. A guide portion 106 is designed on the other side of the buckle assembly 1, which can facilitate the assembly of the heating component 2 and improve production efficiency. The buckle assembly 1 is made of metal to ensure conduction.

[0031] Reference Figure 1-Figure 6 The snap assembly 1 is set to be U-shaped, and the guide part 106 and the fixing part 107 are respectively arranged at both ends of the U-shaped snap assembly 1, which can make the heating component 2 tightly against the inner wall of the snap assembly 1, thereby improving the heat transfer efficiency between the NTC temperature sensor body 3 and the driving motor heating component 2 and the accuracy of the collected signal.

[0032] Reference Figure 1-Figure 6 Both ends of the buckle assembly 1 are respectively provided with a riveting structure for fixing the NTC temperature sensor body 3.

[0033] Reference Figure 1-Figure 6 The riveting structure includes a first pressing plate 101 and a second pressing plate 102. The first pressing plate 101 and the second pressing plate 102 wrap the NTC temperature sensor body 3. The first pressing plate 101 and the second pressing plate 102 are both provided with corresponding inclined surfaces. The first pressing plate 101 and the second pressing plate 102 are both integrally formed with the buckle assembly 1.

[0034] In the utility model, by setting up two sets of rivet structures, the NTC temperature sensor body 3 can be fixed so that it fits tightly on the buckle assembly 1, thereby improving the heat transfer efficiency and the accuracy of signal collection between the NTC temperature sensor body 3 and the heating component 2 of the drive motor. Specifically, when in use, the first pressing plate 101 and the second pressing plate 102 are bent respectively so that they are against the NTC temperature sensor body 3. The first pressing plate 101 and the second pressing plate 102 are provided with inclined surfaces, which can improve the fixing effect.

[0035] Reference Figure 1-Figure 6 A first pre-fixing plate 103 and a second pre-fixing plate 104 for pre-fixing the NTC temperature sensor body 3 are respectively provided near the two riveting structures on the buckle assembly 1. The first pre-fixing plate 103 and the second pre-fixing plate 104 are both integrally formed with the buckle assembly 1.

[0036] Reference Figure 1-Figure 6The buckle assembly 1 is also integrally provided with a side plate 105 for limiting the NTC temperature sensor body 3 .

[0037] In the utility model, the NTC temperature sensor body 3 can be preliminarily fixed by the first pre-fixing plate 103 and the second pre-fixing plate 104, which is convenient for the subsequent operation of the riveting structure, and can ensure that the NTC temperature sensor body 3 and the buckle assembly 1 are tightly fitted, and the side plate 105 can limit the end of the NTC temperature sensor body 3 for easy installation.

[0038] Reference Figure 7 A protrusion 201 and an extension 202 are provided on the heat-generating component 2, a groove 203 is provided between the protrusion 201 and the extension 202, and the fixing portion 107 is arranged in the groove 203. The fixing portion 107 can effectively fix and disassemble the heat-generating component 2, thereby improving the use effect.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high temperature resistant NTC sensor for measuring temperature by tightly fitting an I-shaped copper bar, comprising a heating component (2) and an NTC temperature sensor body (3), characterized in that: Also includes: A buckle assembly (1), wherein a mounting cavity (108) is provided inside the buckle assembly (1), the heat generating component (2) is connected to the mounting cavity (108) inside the buckle assembly (1), and the heat generating component (2) is tightly fitted to the inner wall of the buckle assembly (1), and the NTC temperature sensor body (3) is tightly fitted to the outer wall of the buckle assembly (1); A guide portion (106) for assembling a heat-generating component (2), arranged on the buckle assembly (1); A fixing portion (107) for fixing the heating component (2) is arranged on an end of the buckle assembly (1) away from the guide portion (106).

2. A high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper bar according to claim 1, characterized in that: The buckle assembly (1) is arranged in a U shape, and the guide portion (106) and the fixing portion (107) are respectively arranged at two ends of the U-shaped buckle assembly (1).

3. A high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper bar according to claim 2, characterized in that: Both ends of the buckle assembly (1) are respectively provided with a riveting structure for fixing the NTC temperature sensor body (3).

4. A high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper bar according to claim 3, characterized in that: The riveting structure comprises a first pressing plate (101) and a second pressing plate (102); the first pressing plate (101) and the second pressing plate (102) wrap the NTC temperature sensor body (3); the first pressing plate (101) and the second pressing plate (102) are both provided with corresponding inclined surfaces; the first pressing plate (101) and the second pressing plate (102) are both integrally formed with the buckle assembly (1).

5. A high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper bar according to claim 3, characterized in that: A first pre-fixing plate (103) and a second pre-fixing plate (104) for pre-fixing the NTC temperature sensor body (3) are respectively provided at positions close to the two riveting structures on the buckle assembly (1); the first pre-fixing plate (103) and the second pre-fixing plate (104) are both integrally formed with the buckle assembly (1).

6. A high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper bar according to claim 3, characterized in that: The buckle assembly (1) is also integrally provided with a side plate (105) for limiting the position of the NTC temperature sensor body (3).

7. The high temperature resistant NTC sensor for measuring temperature by tightly fitting the I-shaped copper bar according to claim 1, characterized in that: The heating component (2) is provided with a convex block (201) and a protruding portion (202), a groove (203) is provided between the convex block (201) and the protruding portion (202), and the fixing portion (107) is arranged in the groove (203).

8. A high temperature resistant NTC sensor for measuring temperature in close contact with an I-shaped copper bar according to any one of claims 1 to 7, characterized in that: The buckle assembly (1) is made of metal.

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