Temperature sensor for automobile preheating system

Abstract

The utility model discloses a temperature sensor for an automobile preheating system, which comprises a plug and a sensor connected with the plug through a wire harness, and is characterized in that a movable mounting workpiece is sleeved on the wire harness, one end of the mounting workpiece far away from the sensor is provided with a movable limiting assembly, and the limiting assembly is connected with the plug. The installation workpiece is connected with the sensor through movement, and the limiting assembly abuts against the surface wall of the battery pack and limits movement of the sensor. By sleeving the mounting workpiece on the wire harness between the connecting plug and the sensor, when the sensor is mounted on the surface of the power battery, the mounting workpiece is moved to enable the limiting assembly on the mounting workpiece to abut against the heat dissipation lamination on the surface of the power battery, so that the sensor is mounted and limited.

Description

Technical Field

[0001] The utility model relates to the technology of sensor field, in particular to a temperature sensor used in an automobile preheating system. Background Art

[0002] With the popularity of electric vehicles, the temperature sensor of the electric vehicle preheating system plays a vital role in the thermal management of the entire vehicle compared to the car. The temperature sensor can monitor the temperature of the battery in real time to ensure that the battery operates within a safe and appropriate temperature range, thereby protecting the battery life and performance. In low temperature environments, the power battery pack of electric vehicles needs to be preheated to improve its performance and charging efficiency.

[0003] As for the temperature sensors used in electric vehicles, due to the special design of the battery pack of electric vehicles, the sensors cannot be inserted into the oil cylinder like the temperature sensors used in automobiles, but are attached to the surface of the power battery. At this time, the temperature sensor is prone to poor adhesion to the surface of the power battery due to the lack of limit, which in turn affects the accuracy of the preheating system. Utility Model Content

[0004] In view of this, the present invention aims to solve the deficiencies in the prior art, and its main purpose is to provide a temperature sensor for a car preheating system, which solves the connection problem between the temperature sensor and the power battery.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a temperature sensor for an automobile preheating system, comprising a plug and a sensor connected to the plug through a wiring harness, characterized in that a movable mounting workpiece is sleeved on the wiring harness, a movable limiting component is provided at one end of the mounting workpiece away from the sensor, the mounting workpiece is connected to the sensor by movement, the limiting component abuts against the surface wall of a battery pack and limits the movement of the sensor.

[0006] Furthermore, the limiting assembly includes extension blocks installed on opposite sides of the end surface of the workpiece, and a clamping groove formed between the two extension blocks.

[0007] Furthermore, the extension block is a flexible product and is formed integrally with the installation workpiece, and the two extension blocks are squeezed to tilt inwards / outwards.

[0008] Furthermore, a receiving groove is provided at one end of the installation workpiece corresponding to the sensor, the installation workpiece is docked with the sensor, and the sensor is received in the receiving groove.

[0009] Furthermore, a concave connecting groove is provided at the connection between the installation workpiece and the extension block, a torsion sleeve is provided in the connecting groove, and the extension block is connected to the torsion sleeve.

[0010] Furthermore, the torsion sleeve comprises a rod body connected to the inner wall of the connecting groove, and a sleeve sleeved on the rod body, and the extension block sleeves the sleeve.

[0011] Furthermore, a threaded hole communicating with the connecting groove is provided on one side wall of the installation workpiece, a threaded rod is threadedly connected to the threaded hole, and one end of the threaded rod is connected to an end surface of the sleeve.

[0012] Furthermore, a card interface is provided at the other end of the threaded rod, and the card interface is pluggable and provided with a guide rod.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that by sleeve-fitting the installation workpiece on the wiring harness between the connecting plug and the sensor, when the sensor is installed on the surface of the power battery, the installation workpiece is moved so that the upper limit assembly of the installation workpiece conflicts with the heat dissipation stack on the surface of the power battery, thereby limiting the installation of the sensor.

[0014] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of embodiment 1 of the present utility model.

[0016] Figure 2 It is a three-dimensional diagram of the installation workpiece of Example 2 of the utility model.

[0017] Figure 3 It is a cross-sectional view of the installation workpiece of Example 2 of the utility model.

[0018] Figure 4 It is a cross-sectional view of the twist sleeve of Example 2 of the utility model.

[0019] Figure 5 It is a top view of the threaded rod of Example 2 of the utility model.

[0020] Description of the accompanying drawings:

[0021] 10 plug, 20 sensor, 30 mounting workpiece, 31 receiving groove, 32 connecting groove, 33 twist sleeve, 331 rod body, 332 sleeve, 34 threaded hole, 35 threaded rod, 36 card interface, 37 guide rod;

[0022] 40 is a limit assembly, 41 is an extension block, and 42 is a card slot. DETAILED DESCRIPTION

[0023] Please refer to Figure 1-5As shown, it shows the specific structure of the preferred first embodiment of the utility model, which is a temperature sensor for automobile preheating system, a plug 10 and a sensor 20 connected to the plug 10 through a wiring harness, characterized in that: a movable mounting workpiece 30 is sleeved on the wiring harness, and a movable limit assembly 40 is provided at the end of the mounting workpiece 30 away from the sensor 20, the mounting workpiece 30 is connected to the sensor 20 by movement, the limit assembly 40 contacts the surface wall of the battery pack and limits the movement of the sensor 20. Compared with the traditional temperature sensor used in automobile preheating system, which is installed on the surface of the power battery pack by bolts. The temperature sensor used in the automobile preheating system is locked between the heat dissipation laminates on the power battery through the mounting workpiece 30 and the limit assembly 40, so that the sensing end of the sensor 20 fits the surface of the power battery, and the locking degree of the sensor 20 itself is to avoid the separation of the sensor 20 and the power battery.

[0024] Specifically, one end of the harness is connected to the plug 10, which is connected to the central control system of the car. In cold weather, the smart car can remotely control the car to preheat first. The sensor 20 connected to the other end of the harness is a temperature sensor, which can sense the temperature by fitting with the power battery or other parts of the preheating system. When the sensed temperature reaches a preset value, the hollow system controls the preheating system to stop working. When the sensor 20 is used, the installation workpiece 30 is moved to make the installation workpiece 30 contact the sensor 20 and contact the heat dissipation stack on the surface of the power battery. After contact, the installation workpiece 30 is locked between the two heat dissipation stacks by adjusting the upper limit assembly 40 on the installation workpiece 30, thereby completing the limit of the sensor 20, so as to facilitate the installation of the sensor 20 on the power battery and perform temperature detection on the power battery.

[0025] like Figure 2 As shown, illustratively, the limiting assembly 40 includes extension blocks 41 on both sides of the end surface of the installation workpiece 30, and a slot 42 formed between the two extension blocks 41. The two extension blocks 41 are located at one end of the installation workpiece 30 away from the sensor 20. When the installation workpiece 30 hits the sensor 20, the surface walls of the extension blocks 41 on both sides of the other end of the installation workpiece 30 hit between the two heat dissipation laminates on the electric battery, thereby forming a limit for the installation workpiece 30.

[0026] like Figure 2 As shown, the extension block 41 is a flexible product and is integrally formed with the installation workpiece 30. The two extension blocks 41 are pressed to tilt inwards / outwards. The flexible product referred to as the extension block 41 can be plastic or memory metal. When the two extension blocks 41 are located between the two heat dissipation stacks, the two extension blocks can tilt inwards or outwards according to the spacing between the two heat dissipation stacks due to the gap between the two extension blocks.

[0027] Specifically, when the spacing between the two heat dissipation laminations is smaller than the spacing between the two extension blocks 41, the two extension blocks 41 are pressed against the inner walls of the two heat dissipation laminations, and tilt inwards and gradually approach each other. When the spacing between the two heat dissipation laminations is larger than the spacing between the two extension blocks 41, the two extension blocks 41 tilt outwards and come into contact with the inner walls of the two heat dissipation laminations, thereby limiting the installation workpiece 30.

[0028] like Figure 2 As shown, illustratively, a receiving groove 31 is provided at one end of the installation workpiece 30 corresponding to the sensor 20, and the installation workpiece 30 is docked with the sensor 20, and the sensor 20 is received in the receiving groove 31. By providing the receiving groove 31 at one end of the installation workpiece 30 corresponding to the sensor 20, the sensor 20 can be inserted into the receiving groove 31 and limited, so that after the installation workpiece 30 is limited by the extension block 41 and the two heat dissipation stacks, the sensor 20 is also limited because it is inserted into the receiving groove 31, thereby completing the limitation of the sensor 20.

[0029] In one embodiment, Figure 5 As shown, illustratively, a concave connection groove 32 is provided at the connection between the installation workpiece 30 and the extension block 41, a torsion sleeve 33 is provided in the connection groove 32, and the extension block 41 is connected to the torsion sleeve 33. By providing two opposite connection grooves 32 on both sides of the installation workpiece 30 away from the sensor 20, the torsion sleeve 33 is connected in the two connection grooves 32, and the extension block 41 is sleeved with the torsion sleeve 33, so that the extension block 41 can adapt to the heat dissipation stacks with different spacings by resetting the torsion sleeve 33.

[0030] like Figure 3 As shown, the torsion sleeve 33 includes a rod body 331 connected to the inner wall of the connection groove 32, and a sleeve 332 sleeved on the rod body 331, and the extension block 41 sleeves the sleeve 332. One end of the rod body 331 is fixed to the inner wall of the connection groove 32, and one end of the rod body 331 sleeves the sleeve 332, and one end of the sleeve 332 away from the rod body 331 abuts against the inner wall of the connection groove 32, and the extension block 41 sleeves and fixes the sleeve 332. When the extension block 41 rotates, the sleeve 332 rotates around the rod body 331.

[0031] like Figure 4 As shown, illustratively, a threaded hole 34 connected to the connection groove 32 is provided on one side wall of the installation workpiece 30, a threaded rod 35 is connected to the inner thread of the threaded hole 34, and one end of the threaded rod 35 is connected to one end face of the sleeve 332. One end of the threaded hole 34 is connected to the inner cavity of the connection groove 32, and the other end is connected to the outside of the surface wall of the installation workpiece 30, the threaded hole 34 is connected to the inner thread of the threaded rod 35, and one end of the threaded rod 35 is fixed to the sleeve 332. With the twisting of the threaded rod 35, the sleeve 332 will drive the extension block 41 to tilt outward or inward, and the tilt angle is larger, so as to adapt to heat dissipation stacks with different spacing sizes.

[0032] Specifically, since the threaded rod 35 moves forward or inward when rotating, in order to enable the sleeve 332 to cooperate with the movement of the threaded rod 35, there is a space for displacement between the sleeve 332 and the rod body 311 it is sleeved with, so that the sleeve 332 has space to move with the threaded rod 35.

[0033] like Figure 4 As shown, for example, a card interface 36 is provided at the other end of the threaded rod 35, and the card interface 36 is provided with a pluggable guide rod 37. Because the installation workpiece 30 is located between two heat dissipation laminations when in use, it is difficult for the user to touch it. For this reason, a card interface 36 is provided on the threaded rod 35, and the inner wall of the card interface 36 has edges and corners. The guide rod 37 plugged into the card interface 36 can drive the threaded rod 35 to rotate through the correspondence between the edges and corners and the card interface 36.

[0034] Specifically, the guide rod 37 may be a screwdriver, and the card interface 36 corresponding to the guide rod 37 may be a cross hole or a plum blossom hole.

[0035] In summary, the design focus of the utility model is that after the receiving groove 31 on the installation workpiece 30 is docked with the sensor 20, the extension block 41 on the installation workpiece 30 is clamped between the heat dissipation stacks fixed on the power battery through adjustable characteristics, so that the sensing end of the sensor 20 is fitted with the surface of the power battery.

[0036] The sleeve 332 can also be used to drive the extension block 41 to move by twisting the threaded rod 35 to increase the inclination angle of the extension block 41, thereby adapting to heat dissipation stacks with different spacings and making the temperature sensor more closely connected to the power battery.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A temperature sensor for a car preheating system, comprising a plug (10) and a sensor (20) connected to the plug (10) via a wiring harness, characterized in that: A movable mounting workpiece (30) is sleeved on the wiring harness, and a movable limiting component (40) is provided at one end of the mounting workpiece (30) away from the sensor (20). The mounting workpiece (30) is connected to the sensor (20) by movement, and the limiting component (40) contacts the surface wall of the battery pack and limits the movement of the sensor (20).

2. A temperature sensor for a car preheating system according to claim 1, characterized in that: The limiting assembly (40) comprises extending blocks (41) opposite to each other on both sides of the end surface of the mounting workpiece (30), and a clamping groove (42) formed between the two extending blocks (41).

3. A temperature sensor for a car preheating system according to claim 2, characterized in that: The extension block (41) is a flexible product and is integrally formed with the installation workpiece (30). The two extension blocks (41) are squeezed to tilt inwards / outwards.

4. A temperature sensor for a car preheating system according to claim 1, characterized in that: An accommodating groove (31) is provided at one end of the installation workpiece (30) corresponding to the sensor (20); the installation workpiece (30) is butted against the sensor (20), and the sensor (20) is received in the accommodating groove (31).

5. The temperature sensor for a car preheating system according to claim 2, characterized in that: An inwardly concave connecting groove (32) is provided at the connection point between the installation workpiece (30) and the extension block (41), a torsion sleeve (33) is provided in the connecting groove (32), and the extension block (41) is connected to the torsion sleeve (33).

6. A temperature sensor for a car preheating system according to claim 5, characterized in that: The twist sleeve (33) comprises a rod body (331) connected to the inner wall of the connecting groove (32), and a sleeve (332) sleeved on the rod body (331), and the extension block (41) sleeved on the sleeve (332).

7. A temperature sensor for a car preheating system according to claim 6, characterized in that: A threaded hole (34) communicating with the connecting groove (32) is provided on one side wall of the installation workpiece (30); a threaded rod (35) is internally threadedly connected to the threaded hole (34); one end of the threaded rod (35) is connected to an end surface of the sleeve (332).

8. A temperature sensor for a car preheating system according to claim 7, characterized in that: The other end of the threaded rod (35) is provided with a card interface (36), and the card interface (36) is pluggable and provided with a guide rod (37).

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