A temperature sensor

Abstract

The utility model relates to a temperature sensor, including sensor body and double position buckle, the double position buckle has: the installation structure for connecting with the component to be measured, clamping structure, the clamping structure includes first pressure joint and second pressure joint, first pressure joint with second pressure joint all are connected on the installation structure, sensor body is close to solid connection with first pressure joint and second pressure joint respectively. In the utility model, through first pressure joint and second pressure joint, the sensor body is pressed tightly fixed, realizes the double position fixed of sensor body, stable and reliable, can effectively prevent sensor body from falling off, guarantees the structural stability of temperature sensor, and then improves its detection accuracy.

Description

Technical Field

[0001] This utility model relates to a temperature sensor. Background Technology

[0002] With the rapid development of new energy vehicles, high-power engines, fast charging, and supercharging technologies are constantly being upgraded. This has led to more frequent high-temperature and overheating situations, posing certain safety risks. Therefore, temperature sensors are installed on the motor and charging system to monitor the temperature of these components and respond promptly to prevent overheating-related safety accidents. However, current methods for installing temperature sensors on motors and charging systems suffer from problems such as poor reliability of the sensor mounting structure, leading to issues like sensor heads easily detaching. Utility Model Content

[0003] This utility model relates to a temperature sensor that can at least solve some of the defects of the prior art.

[0004] This utility model relates to a temperature sensor, including a sensor body and a dual-position snap fastener, wherein the dual-position snap fastener has:

[0005] Mounting structure for connecting to the component under test;

[0006] The clamping structure includes a first pressing part and a second pressing part, both of which are connected to the mounting structure. The sensor body is respectively pressed and fixed to the first pressing part and the second pressing part.

[0007] As one embodiment, the first pressing part includes two first pressing plates. Both first pressing plates are deformable plates and are disposed opposite to each other on the mounting structure. The two first pressing plates are respectively pressed onto the housing head of the sensor body and the housing head is held tightly by the two plates.

[0008] As one embodiment, the housing head includes two opposing first head sidewalls and two opposing second head sidewalls;

[0009] The first pressing plate includes a first constraint plate segment and a first pressing plate segment. The two ends of the first constraint plate segment are respectively connected to the mounting structure and the first pressing plate segment through transition plate segments. The transition plate segment is a deformable plate segment. The two first constraint plate segments abut against the two first head sidewalls respectively. The two first pressing plate segments press against one of the second head sidewalls and make the other second head sidewall abut against the mounting structure.

[0010] As one embodiment, the second pressing part includes two second pressing plates. Both second pressing plates are deformable plates and are disposed opposite to each other on the mounting structure. The two second pressing plates are respectively pressed onto the tail of the housing of the sensor body and the tail of the housing is held tightly by the two plates.

[0011] As one embodiment, the tail portion of the housing includes two opposing first tail sidewalls and two opposing second tail sidewalls;

[0012] The second pressing plate includes a second constraint plate segment and a second pressing plate segment. The two ends of the second constraint plate segment are respectively connected to the mounting structure and the second pressing plate segment through transition plate segments. The transition plate segment is a deformable plate segment. The two second constraint plate segments abut against the two first tail side walls respectively. The two second pressing plate segments are pressed against one of the second tail side walls and the other second tail side wall is attached to the mounting structure.

[0013] As one embodiment, the clamping structure further includes an end baffle, which is connected to the mounting structure, and the housing end of the sensor body abuts against the end baffle.

[0014] As one embodiment, the mounting structure includes a grooved clamp suitable for fitting onto the component to be tested. The grooved clamp includes a groove bottom plate and two groove side plates. The groove bottom plate has a first plate surface opposite to the groove opening and a second plate surface opposite to the groove opening. The first pressing part and the second pressing part are both connected to the groove bottom plate, and the sensor body is pressed against the second plate surface by the first pressing part and the second pressing part.

[0015] As one embodiment, the mounting structure further includes an inverted pressure plate, the pressing surface of which is opposite to the first plate surface, and the inverted pressure plate is connected to the grooved clamping plate through an elastic part so that its pressing surface is movable relative to the first plate surface.

[0016] As one embodiment, the pressing surface is provided with a non-reverse part for engaging with the mating groove on the component to be tested.

[0017] As one embodiment, the elastic part is a spring sheet, one end of which is connected to one end of the groove bottom plate, the inverted pressure plate is connected to the other end of the spring sheet, and the middle part of the spring sheet is bent at least once.

[0018] This utility model has at least the following beneficial effects:

[0019] In this invention, the sensor body is pressed and fixed by the first pressing part and the second pressing part, realizing the dual-position fixation of the sensor body, which is stable and reliable, effectively preventing the sensor body from falling off, ensuring the structural stability of the temperature sensor, and thus improving its detection accuracy. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of the temperature sensor provided in the embodiment of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the double-position buckle provided in the embodiment of this utility model;

[0023] Figure 3 This is a cross-sectional view of a double-position snap fastener;

[0024] Figure 4 This is a schematic diagram of the sensor body provided in an embodiment of the present invention. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1-3 This utility model provides a temperature sensor, including a sensor body and a double-position snap fastener, wherein the double-position snap fastener has:

[0027] Mounting structure for connecting to the component under test;

[0028] The clamping structure includes a first crimping part 21 and a second crimping part 22, both of which are connected to the mounting structure. The sensor body is respectively crimped and fixed to the first crimping part 21 and the second crimping part 22.

[0029] In one embodiment, such as Figure 4The aforementioned sensor body includes a housing 11 and a temperature-sensing element 13 encapsulated within the housing 11. The temperature-sensing element 13 is connectable to a wire 12, which extends from the housing 11. The temperature-sensing element 13 can be a thermistor, platinum resistance thermometer, or other temperature-sensing element. Optionally, the temperature-sensing element 13 and the wire 12 are welded together using a combination of resistance welding and laser welding to form a welded semi-finished product, which is then encapsulated in the housing 11.

[0030] Preferably, the sensor body is encapsulated in a plastic encapsulation manner. After the encapsulation shell 11 covers the temperature sensing head of the welded semi-finished product (completely covering the temperature sensing element 13), the encapsulation shell 11 can be used to complete the plastic encapsulation of the welded semi-finished product by high-temperature melting.

[0031] Optionally, the aforementioned encapsulation housing 11 is a fluoroplastic housing, and the aforementioned sensor body is correspondingly a fluoroplastic encapsulated temperature sensor. Further, the encapsulation housing 11 includes an inner tube and an outer tube. Under high temperature conditions, the inner tube melts into a molten state, serving a sealing function, while the outer tube shrinks, serving a shaping and insulating protection function.

[0032] In one embodiment, such as Figure 1 and Figure 4 The aforementioned encapsulation housing 11 is rectangular, which facilitates clamping by the clamping structure; however, it is not limited to this shape of encapsulation housing 11, and cylindrical or irregularly shaped encapsulation housing 11 is also applicable to this embodiment.

[0033] The above-described mounting structure is used to connect to the component under test, that is, to mount the sensor body onto the component under test. In one embodiment, such as... Figures 1-3 The installation structure includes a grooved clamp 31 suitable for fitting onto the component to be tested. The grooved clamp 31 not only securely fastens to the component to be tested, but also facilitates guided installation and prevents the double-position buckle from wobbling left and right during and after installation.

[0034] The aforementioned grooved clamp 31 includes a groove bottom plate 311 and two groove side plates 312. The groove bottom plate 311 has a first plate surface opposite to the groove opening and a second plate surface opposite to the groove opening. The two groove side plates 312 are connected to the two long sides of the groove bottom plate 311, so that the three together form a C-shaped groove.

[0035] Understandably, the component under test has a mounting position that is compatible with the aforementioned slotted clamp 31. For example, when applied to the motor and charging system of new energy vehicles, the aforementioned slotted clamp 31 can be fastened to the copper busbar therein.

[0036] Optionally, such as Figure 2The aforementioned side plate 312 of the groove includes an arc-shaped plate segment (shown in the figure, not labeled) and a straight plate segment. The two ends of the arc-shaped plate segment are connected to the bottom plate 311 of the groove and the straight plate segment, respectively. The center side of the arc-shaped plate segment faces the groove cavity. The arc-shaped plate segment not only improves the structural strength of the groove clamping plate 31, but also facilitates the implementation of guided installation. The mounting position on the component under test is designed with a corresponding shape.

[0037] Furthermore, both the first pressing part 21 and the second pressing part 22 are connected to the bottom plate 311 of the groove, and the sensor body is pressed against the second plate surface by the first pressing part 21 and the second pressing part 22.

[0038] Optionally, such as Figure 1 and Figure 2 Extension plates 3111 can be extended outward from the two longitudinal ends of the bottom plate 311 (the longitudinal direction is parallel to the length of the groove, that is, parallel to the guide installation direction of the groove clamping plate 31), and the first pressing part 21 and the second pressing part 22 are respectively provided on the two extension plates 3111. This method can reliably constrain the sensor body and prevent the sensor body from shaking.

[0039] In one embodiment, such as Figures 1-3 The mounting structure further includes an inverted pressure plate 32, the pressing surface of which is opposite to the first plate surface. The inverted pressure plate 32 is connected to the grooved clamping plate 31 through an elastic part so that its pressing surface is movable relative to the first plate surface.

[0040] In the initial state, the distance between the pressing surface of the inverted clamping plate 32 and the first plate surface of the groove bottom plate 311 is less than the thickness of the component at the installation position, ensuring that after the groove clamping plate 31 is installed in the installation position, the inverted clamping plate 32 can clamp the component to be tested; and based on the elastic effect of the elastic part, it is ensured that the distance between the inverted clamping plate 32 and the groove bottom plate 311 during installation can adapt to the structural parameters of the component to be tested, and that after installation, the inverted clamping plate 32 can apply a certain pressure to the component to be tested, thereby ensuring the installation reliability of the temperature sensor.

[0041] The clamping action of the slotted clamping plate 31 and the pressing action of the inverted pressure plate 32 are coupled together to effectively improve the installation reliability of the temperature sensor and prevent the temperature sensor from shaking or falling off. At the same time, based on the above installation structure, the temperature sensor can be efficiently disassembled and assembled, and the installation and maintenance are very convenient, making it easy to use in new energy vehicles and other applications.

[0042] Preferably, such as Figures 1-3The elastic part is a spring piece 33, one end of which is connected to one end of the groove bottom plate 311, and the inverted pressure plate 32 is connected to the other end of the spring piece 33. The spring piece 33 is bent at least once in the middle. The spring piece 33 is connected to one longitudinal end of the groove bottom plate 311. In the structure with the extension plate 3111, the spring piece 33 can be connected to the extension plate 3111 on the corresponding side. The inverted pressure plate 32, spring piece 33, and groove bottom plate 311 together can roughly form a clamp. Bending the spring piece 33 at least once ensures its resistance to deformation and prevents irreversible deformation during installation and use. Preferably, the spring piece 33 is designed to be bent multiple times.

[0043] Preferably, such as Figure 3 The pressing surface is provided with a non-reverse stop 321 for engaging with the mating groove on the component under test. This method can further improve the installation reliability of the temperature sensor and provide better anti-detachment effect. Moreover, by using the non-reverse stop 321 to engage with the mating groove on the component under test, the temperature sensor can be positioned and installed, thereby improving the installation accuracy of the temperature sensor. Furthermore, the non-reverse stop 321 is plate-shaped, inclined relative to the pressing surface, and extends inclined towards the elastic part. This type of non-reverse stop 321 can play a role in preventing reverse installation, preventing the grooved clamp 31 from separating from the component under test in the opposite direction of the guide installation. The non-reverse stop 321 can be an elastic plate, which facilitates engagement with the mating groove of the component under test and allows it to be separated from the mating groove under external force.

[0044] In this embodiment, the sensor body is pressed and fixed by the first pressing part 21 and the second pressing part 22, realizing the dual-position fixation of the sensor body, which is stable and reliable, effectively preventing the sensor body from falling off, ensuring the structural stability of the temperature sensor, and thus improving its detection accuracy.

[0045] The first crimping portion 21 and the second crimping portion 22 are arranged sequentially along a predetermined direction, that is, the first crimping portion 21 and the second crimping portion 22 define the mounting direction of the sensor body. This mounting direction can be such that the sensor body has a large temperature sensing area. When the encapsulation housing 11 is cuboid in shape, the first crimping portion 21 and the second crimping portion 22 are arranged sequentially along the length direction of the encapsulation housing 11, so that the head and tail of the encapsulation housing 11 can be fixed by the first crimping portion 21 and the second crimping portion 22 respectively.

[0046] In one embodiment, such as Figure 1 and Figure 2The first pressing part 21 includes two first pressing plates 211. Both first pressing plates 211 are deformable plates and are disposed opposite to each other on the mounting structure. The two first pressing plates 211 are respectively pressed onto the housing head of the sensor body and the housing head is held tightly by the two plates.

[0047] The deformable nature of the first pressing plate 211 facilitates the assembly and disassembly of the sensor body in the first pressing part 21, and also allows for adjustment of the pressing force on the head of the housing, thus achieving reliable fixation of the sensor body.

[0048] In the structure described above with extension plate 3111, two first pressing plates 211 can be disposed on the extension plate 3111 on the corresponding side.

[0049] Furthermore, such as Figure 1 and Figure 2 The housing head includes two opposing first head sidewalls and two opposing second head sidewalls; the first pressing plate 211 includes a first constraint plate segment 2111 and a first pressing plate segment 2112, the two ends of the first constraint plate segment 2111 are respectively connected to the mounting structure and the first pressing plate segment 2112 through a transition plate segment 2113, the transition plate segment 2113 is a deformable plate segment; the two first constraint plate segments 2111 abut against the two first head sidewalls respectively, and the two first pressing plate segments 2112 press against one of the second head sidewalls and make the other second head sidewall abut against the mounting structure.

[0050] The first pressing plate 211 can be made of metal, which can also improve the heat conduction effect to a certain extent. The first constraint plate segment 2111 and the first pressing plate segment 2112 can be made of rigid plates or metal plates with a certain plastic deformation capacity (the plastic deformation capacity is weaker than that of the transition plate segment 2113). The transition plate segment 2113 is preferably made of a plate with a certain plastic deformation capacity, including but not limited to metal plates with plastic deformation capacity. For example, aluminum alloy, copper, copper alloy, titanium alloy, etc., or high-performance plastic plates such as PP and PE.

[0051] In one embodiment, such as Figure 1 and Figure 2 The second pressing part 22 includes two second pressing plates 221. Both second pressing plates 221 are deformable plates and are disposed opposite to each other on the mounting structure. The two second pressing plates 221 are respectively pressed onto the tail of the housing of the sensor body and the two plates hold the tail of the housing tightly.

[0052] The deformable nature of the second pressing plate 221 facilitates the assembly and disassembly of the sensor body in the second pressing part 22, and also allows for adjustment of the clamping force on the tail of the housing, thus achieving reliable fixation of the sensor body.

[0053] In the structure described above with extension plate 3111, two second pressing plates 221 can be disposed on the extension plate 3111 on the corresponding side.

[0054] Furthermore, such as Figure 1 and Figure 2 The tail portion of the housing includes two opposing first tail sidewalls and two opposing second tail sidewalls; the second pressing plate 221 includes a second constraint plate segment (shown in the figure, not labeled) and a second pressing plate segment (shown in the figure, not labeled), the two ends of the second constraint plate segment are respectively connected to the mounting structure and the second pressing plate segment through transition plate segments (shown in the figure, not labeled), the transition plate segment is a deformable plate segment; the two second constraint plate segments abut against the two first tail sidewalls respectively, and the two second pressing plate segments press against one of the second tail sidewalls and make the other second tail sidewall abut against the mounting structure.

[0055] The second pressing plate 221 can be made of metal, which can also improve the heat conduction effect to a certain extent. The second constraint plate segment and the second pressing plate segment can be made of rigid plates or metal plates with a certain plastic deformation capacity (the plastic deformation capacity is weaker than that of the transition plate segment). The transition plate segment preferably uses a plate with a certain plastic deformation capacity, including but not limited to metal plates with plastic deformation capacity. For example, aluminum alloy, copper, copper alloy, titanium alloy, etc., or high-performance plastic plates such as PP and PE.

[0056] Based on the first crimping part 21 and the second crimping part 22 of the above structure, the sensor body can be fixed by crimping, which can improve the assembly efficiency of the temperature sensor.

[0057] In one embodiment, such as Figures 1-3 The clamping structure further includes an end baffle 23, which is connected to the mounting structure, and the housing end of the sensor body abuts against the end baffle 23. In the structure with the extension plate 3111 described above, the end baffle 23 can be disposed on the extension plate 3111 on the corresponding side. Based on the end baffle 23, not only can the sensor body be positioned and installed, but also the installation stability and reliability of the sensor body can be further improved by the cooperation of the end baffle 23 with the first pressing part 21 and the second pressing part 22.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature sensor, comprising a sensor body, characterized in that, It also includes a double-position snap fastener, the double-position snap fastener having: Mounting structure for connecting to the component under test; The clamping structure includes a first pressing part and a second pressing part, both of which are connected to the mounting structure. The sensor body is respectively pressed and fixed to the first pressing part and the second pressing part.

2. The temperature sensor as described in claim 1, characterized in that: The first pressing part includes two first pressing plates. Both first pressing plates are deformable plates and are disposed opposite to each other on the mounting structure. The two first pressing plates are respectively pressed onto the housing head of the sensor body and the housing head is held tightly by the two plates.

3. The temperature sensor as described in claim 2, characterized in that: The housing head includes two opposing first head sidewalls and two opposing second head sidewalls; The first pressing plate includes a first constraint plate segment and a first pressing plate segment. The two ends of the first constraint plate segment are respectively connected to the mounting structure and the first pressing plate segment through transition plate segments. The transition plate segment is a deformable plate segment. The two first constraint plate segments abut against the two first head sidewalls respectively. The two first pressing plate segments press against one of the second head sidewalls and make the other second head sidewall abut against the mounting structure.

4. The temperature sensor as described in claim 1, characterized in that: The second pressing part includes two second pressing plates. Both second pressing plates are deformable plates and are disposed opposite to each other on the mounting structure. The two second pressing plates are respectively pressed onto the tail of the housing of the sensor body and the tail of the housing is held tightly by the two plates.

5. The temperature sensor as described in claim 4, characterized in that: The tail portion of the housing includes two opposing first tail sidewalls and two opposing second tail sidewalls; The second pressing plate includes a second constraint plate segment and a second pressing plate segment. The two ends of the second constraint plate segment are respectively connected to the mounting structure and the second pressing plate segment through transition plate segments. The transition plate segment is a deformable plate segment. The two second constraint plate segments abut against the two first tail side walls respectively. The two second pressing plate segments are pressed against one of the second tail side walls and the other second tail side wall is attached to the mounting structure.

6. The temperature sensor as described in claim 1, characterized in that: The clamping structure also includes an end baffle, which is connected to the mounting structure, and the end of the sensor body housing is abutted against the end baffle.

7. The temperature sensor as described in claim 1, characterized in that: The mounting structure includes a slotted clamp suitable for fitting onto the component to be tested. The slotted clamp includes a slotted bottom plate and two slotted side plates. The slotted bottom plate has a first plate surface opposite to the slot opening and a second plate surface opposite to the slot opening. The first pressing part and the second pressing part are both connected to the slotted bottom plate, and the sensor body is pressed against the second plate surface by the first pressing part and the second pressing part.

8. The temperature sensor as described in claim 7, characterized in that: The mounting structure also includes an inverted pressure plate, the pressing surface of which is opposite to the first plate surface, and the inverted pressure plate is connected to the grooved clamping plate through an elastic part so that its pressing surface is movable relative to the first plate surface.

9. The temperature sensor as described in claim 8, characterized in that: The pressing surface is provided with a non-reverse part for engaging with the mating groove on the component to be tested.

10. The temperature sensor as described in claim 8, characterized in that: The elastic part is a spring sheet, one end of which is connected to one end of the groove bottom plate, and the inverted pressure plate is connected to the other end of the spring sheet. The middle part of the spring sheet is bent at least once.

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