CN219977588U

CN219977588U - Temperature measuring element packaging structure and motor

Info

Publication number: CN219977588U
Application number: CN202321553171.8U
Authority: CN
Inventors: 王生建; 佟鑫; 刘津津; 夏冰冰
Original assignee: Valeo Automotive ePowertrain Systems Shanghai Co Ltd
Current assignee: Valeo Automotive ePowertrain Systems Shanghai Co Ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-11-07
Anticipated expiration: 2033-06-16

Abstract

The utility model discloses a temperature measuring element packaging structure and motor, its characterized in that, temperature measuring element packaging structure includes: a temperature sensor having a sensing portion and two lead portions; two wire harnesses, each of which is connected to a corresponding lead portion, forming a connection portion, the connection portion being a welded structure; an outer coating layer coating the temperature sensor and the connection portion; wherein, the outer coating layer at least directly coats the induction part, at least one lead part and a connecting part corresponding to the lead part.

Description

Temperature measuring element packaging structure and motor

Technical Field

The utility model relates to the field of motors, in particular to a temperature measuring element packaging structure and a motor.

Background

With the wide application of temperature measurement in civil and commercial fields, the temperature measuring element, especially the packaging structure of the temperature measuring element, is also subject to higher requirements. In the conventional temperature element packaging structure, two lead portions (a first lead portion and a second lead portion) of a temperature sensor are typically connected to two wire harnesses (a first wire harness and a second wire harness), respectively, for example, the first lead portion is welded to the first wire harness, the second lead portion is welded to the second wire harness, and thereafter, two inner coating layers (a first coating layer and a second coating layer) are provided through the temperature element packaging structure, wherein the first coating layer coats the first lead portion and the first wire harness, for example, and the second coating layer coats the second lead portion and the second wire harness, for example. Finally, the temperature sensor, the wire harness and the two inner cladding layers are covered by the outer cladding layer Bao Fushang. However, when the temperature measuring element packaging structure is adopted, after the outer cladding layer is assembled to the inner cladding layer, after the outer cladding layer is heated and contracted, two lead parts of the temperature sensor are bent due to stress and even lead parts are broken due to stress conduction between the two inner cladding layers and the outer cladding layer, so that the temperature measuring element is damaged, and the temperature measuring function of the temperature measuring element cannot be realized.

Therefore, there is a need for a temperature measuring element packaging structure that can well package and protect the temperature measuring element, and has high reliability and stability, while achieving a good temperature measuring function.

Disclosure of Invention

The utility model provides a temperature measuring element packaging structure and a motor aiming at the problems. The temperature measuring element packaging structure provided by the utility model can well package and protect the temperature measuring element on the basis of realizing a good temperature measuring function, and has higher reliability and stability.

According to an aspect of the present utility model, there is provided a temperature measuring element package structure, including: a temperature sensor having a sensing portion and two lead portions; two wire harnesses, each of which is connected to a corresponding lead portion, forming a connection portion, the connection portion being a welded structure; an outer coating layer coating the temperature sensor and the connection portion; wherein, the outer coating layer at least directly coats the induction part, at least one lead part and a connecting part corresponding to the lead part.

In some embodiments, the outer cladding directly encapsulates the sensing portion, one lead portion, and a connection portion corresponding to the lead portion.

In some embodiments, the outer cladding directly encapsulates the sensing portion, the two lead portions, and the connection portion corresponding to the lead portions.

In some embodiments, the other lead portion and its corresponding connection portion are coated with an inner coating layer.

In some embodiments, the inner cladding layer comprises FEP material.

In some embodiments, the inner cladding is a heat shrink tube.

In some embodiments, the two connection portions are located at different positions along the length of the wire harness.

In some embodiments, the outer cover comprises a PTFE material.

In some embodiments, the temperature sensor is a negative temperature coefficient sensor.

According to another aspect of the present utility model, there is provided an electric motor characterized in that it comprises: a rotor; a stator; and a temperature measuring device for measuring the temperature of the stator winding, wherein the temperature measuring device is provided with the packaging structure of the temperature measuring element.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art. The following drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the utility model.

FIG. 1 shows a schematic diagram of a temperature sensing element package 100 according to an embodiment of the utility model;

FIG. 2 shows a schematic diagram of a variation of the temperature sensing element package structure 100 according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are also within the scope of the utility model.

As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.

Although the present utility model makes various references to certain modules in a system according to embodiments of the present utility model, any number of different modules may be used and run on a user terminal and/or server. The modules are merely illustrative, and different aspects of the systems and methods may use different modules.

A flowchart is used in the present utility model to describe the operations performed by a system according to embodiments of the present utility model. It should be understood that the preceding or following operations are not necessarily performed in order precisely. Rather, the various steps may be processed in reverse order or simultaneously, as desired. Also, other operations may be added to or removed from these processes.

According to an aspect of the present utility model, a temperature sensing element package structure 100 is provided. Fig. 1 shows a schematic view of a temperature measuring element package structure 100 according to an embodiment of the present utility model, and fig. 2 shows a schematic view of a variation of the temperature measuring element package structure 100 according to an embodiment of the present utility model.

Referring to fig. 1 and 2, the temperature measuring element package structure 100 includes, for example: the temperature sensor 110, two wire harnesses (e.g., wire harness 121, wire harness 122, respectively), and an outer cover 130.

Wherein, the temperature sensor refers to a sensing device for realizing temperature sensing. It can be, for example, a negative temperature coefficient sensor, or can also select different types of sensors according to actual needs.

The temperature sensor 110 has, for example, a sensing portion 113 and two lead portions 111 and 112.

The sensing part 113 is a section for realizing temperature sensing in the temperature sensor. For example, the sensing part may be provided with a temperature sensing resistor or a temperature sensing capacitor, which may vary the resistance or capacitance value with different temperatures, thereby achieving reliable and flexible sensing of the temperature.

The lead part refers to a section of the temperature sensor for connecting with an external component to form a temperature sensing loop for temperature sensing. In particular, the sensing part of the temperature sensor is for example mounted or welded to a section of the stator winding of the motor to be measured, and the two lead parts of the temperature sensor can for example be connected to respective wiring harnesses, which are connected to respective measuring devices, so that temperature measurement is achieved.

Each of the two wire harnesses is connected to a corresponding lead portion, forming a connection portion, which is a welded structure.

In fig. 1, schematic sections of the connection 131, 132 are schematically shown, it being understood that the connection refers to a connection section of the wire harness and the lead part, which connection may for example be a welded structure, i.e. a welded connection characterizing one end of the wire harness to the respective lead part.

For example, the wire harness 121 is connected to the lead portion 111, for example, to form a connection portion 131; and the wire harness 112 is connected to the lead portion 122, for example, to form a connection portion 132.

The outer coating layer 130 is an outer coating structure for the temperature measuring element package structure 100, and referring to fig. 1, the outer coating layer 130 covers, for example, the temperature sensor 110 and the connection portions 131 and 132.

And wherein the outer coating layer 130 directly coats at least the sensing part 113, at least one lead part, and a connection part corresponding to the lead part.

For example, the outer coating layer may directly cover the sensing part, one lead part, and a connection part corresponding to the lead part; alternatively, the outer coating layer may directly cover the sensing part, the two lead parts, and the connection parts corresponding to the lead parts.

In the utility model, the temperature measuring element packaging structure comprises: the temperature sensor, the two wire harnesses and the outer cladding layer are arranged, each of the two lead parts of the temperature sensor is connected to the corresponding lead part to form a connecting part, and the outer cladding layer is arranged to at least directly cover the sensing part, the at least one lead part and the connecting part corresponding to the lead part, so that the temperature measuring element can be well packaged and protected on the premise of realizing a good temperature measuring function.

In some embodiments, the outer cladding 130 directly covers the sensing part 113, one lead part, and a connection part corresponding to the lead part.

For example, referring to fig. 1, the outer coating layer 130 directly covers the sensing portion 113, the lead portion 112, and the connection portion 132 corresponding to the lead portion 112. However, it should be understood that the above only gives an example of one cladding, and the cladding layer 130 may be provided to directly cover the sensing portion 113, the lead portion 111, and the connection portion 131 corresponding to the lead portion 111 according to actual needs.

It will be appreciated that the other lead portion (i.e. the lead portion which is not directly covered) and the corresponding connection portion may be provided with an inner covering layer, for example.

Based on the above, in the utility model, the outer cladding layer is arranged to directly cover the sensing part, one lead part and the connecting part corresponding to the lead part, so that on the basis of realizing good packaging of the temperature measuring element, the bending fracture of the lead part is effectively prevented, and the temperature measuring element packaging structure with higher reliability and stability is realized.

In some embodiments, in the case that the outer cladding 130 directly covers the sensing part 113, one lead part, and a connection part corresponding to the one lead part, the other lead part and the corresponding connection part thereof are covered with the inner cladding 140.

The inner coating layer refers to a component which is arranged inside the outer coating layer and is used for realizing packaging and coating of the temperature-measuring related element.

For example, referring to FIG. 1, an inner cladding layer 140 is shown. At this time, the inner coating layer 140 coats, for example, the lead portion 111 and the corresponding connection portion 131, thereby coating the lead portion 111 and the corresponding connection portion 131. And the outer cladding 130 is further coated on the inner cladding 140, for example, so that a good coating of the temperature measuring element is achieved.

It should be appreciated that the above is given as an example of only one inner cladding layer. The inner coating layer 140 may be further provided to cover the lead portion 112 and the corresponding connection portion 132, and the outer coating layer may be provided to directly cover the sensing portion 113, the lead portion 111, and the connection portion 131 corresponding to the lead portion 111, according to actual needs.

Based on the above, in the present utility model, when the outer coating layer directly coats the sensing part, one lead part and the connection part corresponding to the lead part, the inner coating layer is coated on the other lead part and the connection part corresponding to the other lead part, so that the outer coating layer directly coats the one lead part and the connection part corresponding to the other lead part, and the other lead part and the connection part corresponding to the other lead part are coated between the inner coating layer, so that the packaging reliability of the temperature measuring element can be improved when the good reliable coating of the temperature measuring element is realized and the bending fracture of the lead part of the temperature measuring element is prevented, the lead part and the connection part corresponding to the lead part are further protected through the inner coating layer.

Fig. 2 shows an embodiment of a variation of the temperature sensing element package structure. Referring to fig. 2, in some embodiments, the outer cladding 130 may directly cover the sensing part 113, the two lead parts 111, 112, and the connection parts 131, 132 corresponding to the lead parts, for example.

Based on the above, by arranging the outer cladding layer to directly cover the sensing part, the two lead parts and the connecting parts corresponding to the lead parts, on one hand, the situation of bending fracture of the lead parts caused by stress conduction of the inner outer cladding layer can be prevented, thereby realizing the temperature measuring element packaging structure with higher reliability and stability. On the other hand, the element number of the temperature measuring element packaging structure is reduced, and the manufacturing cost is reduced.

In some embodiments, the inner cladding layer comprises FEP material.

The FEP material refers to a fluorinated ethylene propylene copolymer material. However, it should be appreciated that the inner cladding may also comprise other materials, for example, depending on the actual needs.

Based on the above, by setting the inner coating layer to include the FEP material, that is, the soft plastic, it is possible to utilize the characteristics of the FEP material such as low friction coefficient, electrical property and electrical insulation not affected by temperature, to realize good coating and insulation of the lead portion and the connection portion corresponding to the lead portion, and to improve the reliability of the encapsulation structure of the temperature measuring element.

In some embodiments, the inner cladding is a heat shrink tube.

The heat-shrinkable tube is a heat-shrinkable sleeve, and has the advantages of insulation, corrosion resistance, wear resistance, high temperature resistance, high mechanical strength, good chemical resistance and the like.

For example, the inner coating layer may be a heat shrink tube made of FEP material, or the inner coating layer may be a heat shrink tube made of other materials or composite materials. Embodiments of the present utility model are not limited by the manner and materials of manufacture of the heat shrink tubing.

Based on the above, by providing the inner coating layer as the heat shrink tube, insulation protection of the cable can be well achieved via the heat shrink tube, and particularly, good insulation protection of the welding point of the wire harness and the lead part in the connection part can be achieved.

It should be understood that the length direction of the wire harness refers to a direction extending along the length of the wire harness, such as the Lo direction in fig. 1.

It should be appreciated that embodiments of the present utility model are not limited by the specific fore-aft positions of the two connection portions.

Based on the above, through setting up two connecting portions and being located different positions along the length direction of pencil for can prevent effectively that the condition that leads to temperature control component to become invalid or the function is impaired because producing electric connection between two connecting portions (for example two welding points in connecting portion contact), improved this temperature measuring component packaging structure's stability and reliability.

In some embodiments, the outer cover comprises a PTFE material.

The PTFE material is polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE) material. However, it should be appreciated that the outer cover may also include other materials, as desired.

Based on the above, by providing the outer cladding layer including the PTFE material, it is possible to achieve good cladding and insulation of the lead portion and the connection portion corresponding to the lead portion by utilizing the material characteristics of the FEP material such as corrosion resistance, high temperature resistance, and the like, and to improve the reliability of the temperature measuring element package structure.

The negative temperature coefficient sensor includes, for example, a negative temperature coefficient resistor whose resistance value decreases significantly with an increase in temperature, and whose sensitivity is high, so that a high-sensitivity temperature measurement can be achieved.

Based on the above, the temperature sensor is a negative temperature coefficient sensor, so that the flexible measurement of the temperature can be realized in a simple and convenient way according to the characteristic that the resistance value of the resistor in the negative temperature coefficient sensor is obviously reduced along with the temperature rise, and the temperature measuring element has higher sensitivity and reliability.

According to another aspect of the present utility model, there is provided an electric motor characterized in that it comprises: the temperature measuring device comprises a rotor, a stator and a temperature measuring device for measuring the temperature of a stator winding, wherein the temperature measuring device is provided with the temperature measuring element packaging structure.

For example, the temperature measuring element packaging structure can be mounted or welded on a component needing temperature detection, such as a winding or a chignon part of a motor stator, so as to realize reliable detection of the temperature of the motor stator winding.

However, it should be understood that the temperature measuring element package may be mounted in other locations of the motor stator, for example, as desired. The embodiment of the utility model is not limited by the installation position of the temperature measuring element packaging structure and the specific temperature measuring task thereof.

The temperature measuring element packaging structure can have the structure as described above, and the functions as described above are realized, and are not described herein.

Based on the above, in the utility model, the motor is provided with the temperature measuring device for measuring the temperature of the stator winding, and the temperature measuring device is provided with the packaging structure of the temperature measuring element, so that the reliable measurement of the temperature of the stator winding can be realized in a simple and convenient manner, and the good packaging and protection of the temperature measuring element can be realized through the packaging structure of the temperature measuring element.

The utility model uses specific words to describe embodiments of the utility model. Reference to "a first/second embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the utility model. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the utility model may be combined as suitable.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The foregoing is illustrative of the present utility model and is not to be construed as limiting thereof. Although a few exemplary embodiments of this utility model have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this utility model. Accordingly, all such modifications are intended to be included within the scope of this utility model as defined in the following claims. It is to be understood that the foregoing is illustrative of the present utility model and is not to be construed as limited to the specific embodiments disclosed, and that modifications to the disclosed embodiments, as well as other embodiments, are intended to be included within the scope of the appended claims. The utility model is defined by the claims and their equivalents.

Reference numerals:

100 temperature measuring element packaging structure

110 temperature sensor

111 lead part

112 lead part

113 sensor

121 harness

122 wire harness

130 outer coating

131 connecting part

132 connection portion

140 inner coating layer

Lo wire harness length direction.

Claims

1. The utility model provides a temperature measurement component packaging structure which characterized in that includes:

a temperature sensor having a sensing portion and two lead portions;

two wire harnesses, each of which is connected to a corresponding lead portion, forming a connection portion, the connection portion being a welded structure;

an outer coating layer coating the temperature sensor and the connection portion;

wherein, the outer coating layer at least directly coats the induction part, at least one lead part and a connecting part corresponding to the lead part.

2. The package structure of claim 1, wherein the outer coating directly covers the sensing portion, one lead portion, and a connection portion corresponding to the lead portion.

3. The package structure of claim 1, wherein the outer coating directly covers the sensing portion, the two lead portions, and the connection portion corresponding to the lead portions.

4. The package structure of claim 2, wherein the other lead portion and its corresponding connection portion are covered with an inner covering layer.

5. The temperature sensing element package of claim 4, wherein the inner cladding comprises FEP material.

6. The packaging structure of claim 4 or 5, wherein the inner cladding is a heat shrink tube.

7. The package structure of claim 1, wherein the two connection portions are located at different positions along a length direction of the wire harness.

8. The temperature sensing element package of claim 1, wherein the outer cladding comprises a PTFE material.

9. The temperature sensing element package structure of claim 1, wherein the temperature sensor is a negative temperature coefficient sensor.

10. An electric machine, the electric machine comprising:

a rotor;

a stator; and

temperature measuring device for measuring the temperature of a stator winding, the temperature measuring device having a temperature measuring element packaging structure according to any one of claims 1-9.