Temperature measuring device and motor

Abstract

The utility model relates to the technical field of motor temperature monitoring, aims to solve the problem of how to improve the installation efficiency of a temperature measuring device, and provides the temperature measuring device and a motor. The temperature measuring device comprises a fixing piece, a temperature measuring piece and a pressing structure. The fixing piece is provided with a first cavity and a second cavity, the first cavity is used for allowing the target piece to penetrate through, and the second cavity communicates with the first cavity. And the temperature measuring piece is inserted into the second cavity. The pressing structure comprises a connecting part and an elastic part which are connected, the connecting part is connected to the temperature measuring piece, and the elastic part is located in the second cavity, elastically abuts against the position between the fixing piece and the temperature measuring piece and is used for elastically pressing the temperature measuring piece against the target piece. The temperature measuring device has the advantages that during installation, the target piece is sleeved with the fixing piece firstly, then the temperature measuring piece and the pressing structure are inserted into the second cavity together, installation is convenient and fast, and therefore the installation efficiency of the temperature measuring device can be improved. For example, the target may be a winding of the electric machine.

Description

Technical Field

[0001] The present application relates to the technical field of motor temperature monitoring, and in particular to a temperature measuring device and a motor. Background Art

[0002] A temperature measuring device is provided in the related art for detecting the temperature of a motor. The temperature measuring device measures the temperature of the winding by tying a temperature measuring element to the winding of the motor.

[0003] However, the installation efficiency of the temperature measuring device in the related art is low. Utility Model Content

[0004] The present application provides a temperature measuring device and a motor to solve the problem of how to improve the installation efficiency of the temperature measuring device.

[0005] According to one aspect of the present application, a temperature measuring device is provided, comprising a fixing member, a temperature measuring member, and a pressing structure. The fixing member is provided with a first cavity and a second cavity, the first cavity being for allowing a target member to pass through, and the second cavity being connected to the first cavity. The temperature measuring member is plugged into the second cavity. The pressing structure comprises a connected connecting portion and an elastic portion, the connecting portion being connected to the temperature measuring member, the elastic portion being located in the second cavity and elastically pressing between the fixing member and the temperature measuring member, for elastically pressing the temperature measuring member against the target member.

[0006] The temperature measuring device can be installed by simply placing the fixing member over the target part and then inserting the temperature measuring part and the pressing structure into the second cavity. This makes installation quick and easy, thereby improving the installation efficiency of the temperature measuring device. For example, the target part can be a motor winding.

[0007] In one embodiment, the elastic portion has a first end and a second end, the first end is connected to the connecting portion, the second end is tilted toward a side away from the temperature measuring component, and the second end elastically presses against the fixing component.

[0008] In one embodiment, the fixing member has a first anti-slip portion protruding toward the inner side of the second cavity, and the second end abuts against the first anti-slip portion along the extension direction of the second cavity.

[0009] In one embodiment, the compression structure further includes a second anti-slip portion, one end of which is connected to the connecting portion and the other end of which extends toward the fixing member, and the first anti-slip portion is sandwiched between the second end and the second anti-slip portion.

[0010] In one embodiment, the connecting portion includes a sleeve portion and an extension portion. The sleeve portion is sleeved on the outside of the temperature measuring component, and one end of the extension portion is connected to the sleeve portion, and the other end extends into the second cavity and is connected to the elastic portion.

[0011] In one embodiment, the fixing member includes a first side plate and two second side plates; the two second side plates are bent and connected to opposite sides of the first side plate. The first cavity and the second cavity are located inside the first side plate and the two second side plates, with the second cavity located on a side of the first cavity closer to the first side plate.

[0012] In one embodiment, the fixing member is configured to engage the target member.

[0013] In one embodiment, the fixing member has an opening connected to the first cavity away from the second cavity, and the fixing member has a plurality of latching portions located on both sides of the opening. The plurality of latching portions are spaced apart to allow the target object to enter the first cavity and engage with the latching portions.

[0014] In one embodiment, the pressing structure is a sheet metal part; and / or,

[0015] The fixing element is produced by injection molding and / or stamping.

[0016] According to another aspect of the present application, a motor is provided, comprising a winding and a temperature measuring device as described in any one of the above embodiments, wherein the target part is the winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the structure of a motor in one embodiment of the present application (only the stator assembly of the motor is shown in the figure).

[0019] Figure 2 for Figure 1 Schematic diagram of the assembly state of the temperature measuring device and the target part in the illustrated embodiment.

[0020] Figure 3 for Figure 1 A schematic structural diagram of the temperature measuring device in the illustrated embodiment.

[0021] Figure 4 for Figure 1 Exploded view of the temperature measuring device in the illustrated embodiment.

[0022] Figure 5 for Figure 1 A cross-sectional view of the temperature measuring device in the illustrated embodiment.

[0023] Figure 6 for Figure 1A schematic structural diagram of the fixing member in the illustrated embodiment.

[0024] Description of main component symbols:

[0025] Motor 1

[0026] Temperature measuring device 100

[0027] Fixing 10

[0028] First cavity 10a

[0029] Second cavity 10b

[0030] Opening 10c

[0031] First anti-fall-off portion 11

[0032] First side plate 12

[0033] Second side plate 13

[0034] Buckle portion 14

[0035] Temperature measuring device 20

[0036] Compression structure 30

[0037] Connecting portion 31

[0038] socket portion 311

[0039] Extension portion 312

[0040] Elastic portion 32

[0041] First end 321

[0042] Second end 322

[0043] Second anti-fall-off portion 33

[0044] Winding 200

[0045] Solder Point 201

[0046] Target part 200a

[0047] The following specific implementation methods will further illustrate this application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0048] The technical solutions 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, rather than all the embodiments.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered therein. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an element centered therein. When an element is considered to be "set on" another element, it may be directly set on the other element or there may also be an element centered therein. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" as used herein includes any and all combinations of one or more of the relevant listed items.

[0051] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.

[0052] Example

[0053] Figure 1 Schematic diagram of the structure of the motor 1 in one embodiment of the present application (only the stator assembly of the motor 1 is shown in the figure); Figure 2 for Figure 1 A schematic diagram of the assembled state of the temperature measuring device 100 and the target part 200a in the illustrated embodiment; Figure 3 for Figure 1 A schematic structural diagram of the temperature measuring device 100 in the illustrated embodiment.

[0054] See also Figure 1 and Figure 2 The embodiment of the present application provides a motor 1, comprising a winding 200 and a temperature measuring device 100, wherein the temperature measuring device 100 is used to measure the temperature of a target part 200a, where the target part 200a is the winding 200. Optionally, the motor 1 can be applied to new energy vehicles.

[0055] In this way, the temperature of the winding 200 of the motor 1 can be detected by the temperature measuring device 100 to prevent the motor 1 from burning due to excessive temperature of the winding 200 under severe working conditions.

[0056] Optionally, the target part 200a may be a weld point 201 of the winding 200. It should be noted that, due to differences in the electric drive assembly structure of the motor 1, uneven cooling of the motor 1 can easily occur. By having the temperature measuring device 100 detect the temperature of the weld point 201 of the winding 200, the temperature measuring device 100 can detect the temperature at the highest point of the winding 200, thereby ensuring that the motor 1 is not damaged by excessive temperatures. Furthermore, since the temperature measuring device 100 can be installed at any weld point 201 of the winding 200, the installation location of the temperature measuring device 100 is more flexible.

[0057] Figure 4 for Figure 1 An exploded view of the temperature measuring device 100 in the illustrated embodiment.

[0058] See also Figures 2 to 4 This embodiment provides a temperature measuring device 100, including a fixing member 10, a temperature measuring member 20 (such as a thermistor) and a pressing structure 30. The fixing member 10 is provided with a first cavity 10a and a second cavity 10b, the first cavity 10a is used for the target member 200a to pass through, and the second cavity 10b is connected to the first cavity 10a. The temperature measuring member 20 is inserted into the second cavity 10b. The pressing structure 30 includes a connected connecting portion 31 and an elastic portion 32, the connecting portion 31 is connected to the temperature measuring member 20, and the elastic portion 32 is located in the second cavity 10b and elastically presses between the fixing member 10 and the temperature measuring member 20, and is used to elastically press the temperature measuring member 20 against the target member 200a.

[0059] In the temperature measuring device 100, the elastic portion 32 elastically presses the temperature measuring element 20 against the target part 200a, thereby securing the temperature measuring element 20 relative to the target part 200a and closely adhering to the target part 200a, thereby improving the temperature measurement accuracy of the temperature measuring element 20. When installing the temperature measuring device 100, one only needs to first install the fixing member 10 on the target part 200a, pass the target part 200a through the first cavity 10a, and then insert the temperature measuring element 20 and the clamping structure 30 connected to the temperature measuring element 20 into the second cavity 10b. This makes the installation operation quick and convenient, and eliminates the need to tie the temperature measuring device 100. This improves the installation efficiency of the temperature measuring device 100 and further reduces labor and manufacturing costs.

[0060] Figure 5 for Figure 1 A cross-sectional view of the temperature measuring device 100 in the illustrated embodiment.

[0061] In some embodiments, combined Figure 4 and Figure 5As shown, the elastic portion 32 has a first end 321 and a second end 322. The first end 321 is connected to the connecting portion 31, and the second end 322 is tilted toward the side away from the temperature measuring element 20. The second end 322 elastically abuts against the fixing member 10. During installation, when the temperature measuring element 20 is inserted into the fixing member 10, the tilted portion of the elastic portion 32 is squeezed by the fixing member 10 and compressed toward the temperature measuring element 20, thereby facilitating the insertion of the temperature measuring element 20 into the fixing member 10.

[0062] In some embodiments, as Figure 5 As shown, the fixing member 10 has a first anti-slip portion 11 protruding toward the inside of the second cavity 10b, and the second end 322 abuts the first anti-slip portion 11 along the extension direction of the second cavity 10b to prevent the temperature measuring member 20 from slipping out of the fixing member 10 along the extension direction of the second cavity 10b toward the side closer to the first anti-slip portion 11. It can be understood that the temperature measuring member 20 is inserted into the second cavity 10b along the extension direction of the second cavity 10b. During installation, the temperature measuring member 20 is inserted into the second cavity 10b in the direction from the second end 322 to the first end 321. Due to the provision of the first anti-slip portion 11, the temperature measuring member 20 can be prevented from being pulled out of the fixing member 10 in a direction opposite to the installation direction.

[0063] In some embodiments, as Figures 3 to 5 As shown, the clamping structure 30 also includes a second anti-slip portion 33, one end of which is connected to the connecting portion 31 and the other end extends toward the fixing member 10, and the first anti-slip portion 11 is clamped between the second end 322 and the second anti-slip portion 33. In this way, by providing the second anti-slip portion 33, it is possible to prevent the temperature measuring component 20 from being pulled out of the fixing member 10 along the installation direction. Therefore, providing the first anti-slip portion 11 and the second anti-slip portion 33 can prevent the temperature measuring component 20 from being pulled out of the fixing member 10 toward either side along the extension direction of the second cavity 10b. When disassembling the temperature measuring device 100, the fixing member 10 needs to be removed from the target component 200a (see figure).

[0064] In some embodiments, as Figure 4 and Figure 5 As shown, the connecting portion 31 includes a sleeve portion 311 and an extension portion 312. The sleeve portion 311 is sleeved onto the outside of the temperature measuring element 20. The extension portion 312 has one end connected to the sleeve portion 311 and the other end extending into the second cavity 10b and connected to the elastic portion 32. Thus, the sleeve portion 311 is sleeved onto the temperature measuring element 20, facilitating the installation of the compression structure 30 on the temperature measuring element 20. Furthermore, since the sleeve portion 311 is located outside the second cavity 10b, it prevents the sleeve portion 311 from interfering with the contact between the portion of the temperature measuring element 20 located in the second cavity 10b and the target part 200a, thereby improving the accuracy of the temperature measurement of the target part 200a by the temperature measuring element 20.

[0065] Figure 6 for Figure 1 A schematic structural diagram of the fixing member 10 in the illustrated embodiment.

[0066] In some embodiments, as Figure 6 As shown, the fixing member 10 includes a first side panel 12 and two second side panels 13. The two second side panels 13 are bent and connected to either side of the first side panel 12. The first cavity 10a and the second cavity 10b are located inside the first side panel 12 and the two second side panels 13, with the second cavity 10b located on the side of the first cavity 10a closer to the first side panel 12. This simplifies the structure of the fixing member 10 and facilitates manufacturing.

[0067] In some embodiments, combined Figure 2 and Figure 3 As shown, the fixing member 10 is configured to be able to engage with the target member 200 a , so that the fixing member 10 can be installed on the target member 200 a , making the installation of the temperature measuring device 100 more convenient and quick.

[0068] In some embodiments, as Figure 6 As shown, the fixing member 10 is provided with an opening 10c, which is connected to the first cavity 10a away from the second cavity 10b. The fixing member 10 is provided with a plurality of buckle portions 14 located on both sides of the opening 10c. The plurality of buckle portions 14 are arranged at intervals to allow the target part 200a (see Figure 2 ) enters the first cavity 10a and engages with the snap portion 14, thereby facilitating installation of the fixing member 10 on the target part 200a and reliably securing the fixing member 10 to the target part 200a. During installation, the side of the fixing member 10 with the opening 10c is positioned opposite the target part 200a. The fixing member 10 is then pressed toward the target part 200a to securely fasten the fixing member 10 to the target part 200a. The temperature measuring member 20 and the clamping structure 30 are then inserted into the fixing member 10. In this embodiment, there are four snap portions 14, one on each side of the opening 10c.

[0069] In some embodiments, the compression structure 30 is a sheet metal part to facilitate the production of the compression structure 30 and to facilitate connecting the compression part to the temperature measuring part 20. Optionally, the compression structure 30 clamps the temperature measuring part 20 through the sleeve portion 311 to fix the compression structure 30 relative to the temperature measuring part 20.

[0070] In some embodiments, the fixing member 10 is made by injection molding and stamping to reduce the production cost of the fixing member 10 .

[0071] In some embodiments, the fixing member 10 is made by injection molding or stamping.

[0072] During installation, the temperature measuring device 100 provided in this embodiment is assembled by tightening the clamping structure 30 against the temperature measuring element 20, and buckling the fixing element 10 onto the target element 200a. The temperature measuring element 20 and the clamping structure 30 are then inserted between the fixing element 10 and the target element 200a to complete the installation. This makes the installation of the temperature measuring device 100 simple and quick, reducing labor costs. When inserting the temperature measuring element 20, the temperature measuring element 20 is inserted along the extension direction of the second cavity 10b, and the first end 321 of the elastic portion 32 passes through the first anti-slip portion 11 before the second end 322. After the second end 322 passes through the first anti-slip portion 11, the second end 322 approaches the fixing element 10 under the action of the elastic force, thereby elastically pressing against the fixing element 10 and the temperature measuring element 20, causing the side of the temperature measuring element 20 away from the fixing element 10 to be in close contact with the target element 200a, thereby improving temperature measurement accuracy. Once the temperature measuring element 20 is connected, the first anti-detachment portion 11 and the second anti-detachment portion 33 prevent the temperature measuring element 20 from detaching toward either side along the extension direction of the second cavity 10b, ensuring a secure installation of the temperature measuring element 20. To disassemble the temperature measuring device 100, the fixing member 10 is removed away from the target element 200a, allowing the target element 200a to disengage from between the multiple locking portions 14, thereby facilitating quick disassembly of the temperature measuring device 100.

[0073] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present application should not depart from the spirit and scope of the technical solutions of the present application.

Claims

1. A temperature measuring device, characterized in that: include: The fixing member is provided with a first cavity and a second cavity, wherein the first cavity is used for the target member to pass through, and the second cavity is communicated with the first cavity; The temperature measuring component is plugged into the second cavity; as well as, A clamping structure, the clamping structure includes a connected connecting part and an elastic part, the connecting part is connected to the temperature measuring part, the elastic part is located in the second cavity, and elastically presses between the fixing part and the temperature measuring part, and is used to elastically press the temperature measuring part against the target part.

2. The temperature measuring device according to claim 1, characterized in that The elastic portion has a first end and a second end, the first end is connected to the connecting portion, the second end is tilted toward a side away from the temperature measuring component, and the second end elastically presses against the fixing component.

3. The temperature measuring device according to claim 2, characterized in that The fixing member has a first anti-slip portion protruding toward the inner side of the second cavity, and the second end abuts against the first anti-slip portion along the extending direction of the second cavity.

4. The temperature measuring device according to claim 3, characterized in that The compression structure further includes a second anti-slip portion; One end of the second anti-slip portion is connected to the connecting portion, and the other end extends toward the fixing member, and the first anti-slip portion is sandwiched between the second end and the second anti-slip portion.

5. The temperature measuring device according to claim 1, characterized in that: The connecting portion includes a sleeve portion and an extension portion; The sleeve portion is sleeved on the outside of the temperature measuring component, one end of the extension portion is connected to the sleeve portion, and the other end extends into the second cavity and is connected to the elastic portion.

6. The temperature measuring device according to claim 1, characterized in that The fixing member comprises a first side plate and two second side plates; the two second side plates are respectively bent and connected to both sides of the first side plate; The first cavity and the second cavity are located on inner sides of the first side plate and the two second side plates, and the second cavity is located on a side of the first cavity close to the first side plate.

7. The temperature measuring device according to claim 1, characterized in that The fixing member is configured to be capable of engaging with the target member.

8. The temperature measuring device according to claim 7, characterized in that: The fixing member is provided with an opening, the opening being connected to a side of the first cavity away from the second cavity, and the fixing member is provided with a plurality of buckle portions located on both sides of the opening; The plurality of snap-fit ​​portions are spaced apart to allow the target component to enter the first cavity and snap-fit ​​with the snap-fit ​​portions.

9. The temperature measuring device according to claim 1, characterized in that: The pressing structure is a sheet metal part; and / or, The fixing element is made by injection molding and / or stamping.

10. A motor, characterized in that: include: winding; as well as, The temperature measuring device according to any one of claims 1 to 9, wherein the target part is the winding.

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