Parallel voltage and temperature sensing integrated terminal structure

Abstract

The utility model relates to the technical field of terminals, in particular to a parallel voltage and temperature sensing integrated terminal structure, which comprises a shell, a first fixing part, a second fixing part, a temperature sensing acquisition module and a voltage acquisition module, and is characterized in that the first fixing part and the second fixing part are horizontally distributed at an interval along the length direction of the shell and extend outwards; the temperature sensing acquisition module is borne on the first fixing part, the voltage acquisition module is borne on the second fixing part, and the battery pack has the advantage that the internal space of the battery pack is saved.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and in particular to a parallel voltage and temperature sensing integrated terminal structure. Background Technology

[0002] Safety monitoring of new energy vehicle battery packs relies on the real-time acquisition of temperature and voltage data, which is also a core technical requirement to ensure vehicle performance and lifespan.

[0003] In related technologies: Currently, voltage and temperature sensing terminals in the industry generally adopt a split structure. The temperature sensing acquisition module is connected to the thermistor of the battery pack through an independent terminal, while the voltage acquisition module needs to be connected to the battery terminals separately. As the energy density of battery packs increases, the utilization rate of internal space has become a key indicator.

[0004] The existing voltage and temperature sensing separate terminals have the following problems: the device is large in size and the internal wiring harness is complex, which seriously reduces the internal space utilization of the battery pack and does not meet the design requirements of compact battery systems. Summary of the Invention

[0005] To save internal space in the battery pack, this application provides a parallel voltage and temperature sensing integrated terminal structure.

[0006] The parallel voltage and temperature sensing integrated terminal structure provided in this application adopts the following technical solution:

[0007] A parallel voltage and temperature sensing integrated terminal structure includes a housing, a first fixing part, a second fixing part, a temperature sensing acquisition module, and a voltage acquisition module. The first fixing part and the second fixing part extend outward along the length direction of the housing and are horizontally spaced apart. The temperature sensing acquisition module is supported on the first fixing part, and the voltage acquisition module is supported on the second fixing part.

[0008] By adopting the above solution, the housing with integrated functional settings can simultaneously collect temperature and voltage signals from the battery pack. Furthermore, the parallel layout between the temperature and voltage acquisition modules reduces signal crosstalk, achieving integrated monitoring of both parameters while saving internal space in the battery pack.

[0009] Preferably, the housing has a flat structure, and a wiring section extends in the opposite direction on the other side of the housing.

[0010] By adopting the above solution, the flat shell structure is adapted to the narrow installation space of the battery pack of new energy vehicles, and the wiring section is responsible for centrally storing the wiring harness, further reducing space occupation and improving assembly efficiency.

[0011] Preferably, it further includes a reinforcing portion, which is curved and is respectively connected between the first fixing portion and the housing and between the second fixing portion and the housing.

[0012] By adopting the above scheme, the curved surface design of the reinforcing part effectively disperses the mechanical stress at the connection between the first and second fixing parts and the shell, reduces the local stress concentration caused by the right angle structure, and can also buffer the vibration energy of the battery pack to a certain extent.

[0013] Preferably, the first fixing part is formed by continuously stamping and folding the housing to create a cylindrical structure, which is used for potting and encapsulating the temperature sensing module.

[0014] By adopting the above solution, a seamless cylindrical structure is formed by continuous stamping. Combined with the potting process, the sealing and protection of the temperature sensing module is effectively improved.

[0015] Preferably, the outer wall of the first fixing part is provided with inwardly recessed first anti-slip grooves at intervals along the length direction of the first fixing part.

[0016] By adopting the above solution, the friction coefficient of the inner wall of the first fixing part is increased, reducing the occurrence of the temperature sensing module falling off under vibration conditions after sealing.

[0017] Preferably, the second fixing part includes a first wing and a second wing. The first wing and the second wing extend outward along the length direction of the second fixing part and are spaced apart. The first wing and the second wing respectively surround at least a portion of the second fixing part to form a crimping area for crimping the voltage acquisition module.

[0018] By adopting the above scheme, the first and second winglets are spaced apart to form a guide channel, which reduces the deviation of the wire harness installation position and is used to bend and crimp the voltage acquisition module. The double-winglet wrapping structure disperses the bending stress of the wire harness to both sides, extending the service life of the wire.

[0019] Preferably, the second wing is provided with inwardly recessed second anti-slip grooves at intervals along the length direction of the second fixing part, and the two ends of the second anti-slip grooves extend along the inner wall of the second wing.

[0020] By adopting the above solution, the second anti-slip groove and the inner wall of the second wing form a mechanical snap, which improves the lateral tensile strength of the second wing and effectively reduces the chip detachment of the voltage acquisition module. The second anti-slip groove also disperses and transmits the vibration energy of the wire harness through the inner wall of the wing, further increasing the vibration resistance.

[0021] Preferably, the wiring portion has folding portions on both sides perpendicular to the wiring portion, and the end of the folding portion away from the wiring portion extends toward the wiring portion and is provided with a limiting member.

[0022] By adopting the above scheme, the structure forms a wire harness guide channel through the vertical folding parts on both sides. The limiting member at the end of the folding part can laterally constrain the wire harness. The wiring part, folding part and limiting member work together to realize the directional arrangement and position locking of the wire harness, effectively reducing the occurrence of wire harness mess and friction damage.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The housing with integrated function settings can simultaneously collect temperature and voltage signals from the battery pack. The parallel layout between the temperature and voltage acquisition modules reduces signal crosstalk, achieving integrated monitoring of dual parameters while saving internal space in the battery pack.

[0025] 2. Improved assembly efficiency and vibration resistance of the device;

[0026] 3. It extends the service life of key components. Attached Figure Description

[0027] Figure 1 This is a front structural diagram of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the reverse structure of an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Housing; 2. First fixing part; 21. First anti-slip groove; 22. Glue-filling area; 3. Second fixing part; 31. First wing; 32. Second wing; 321. Second anti-slip groove; 33. Pressing area; 4. Reinforcing part; 5. Wiring part; 51. Folding part; 52. Limiting member. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0031] This application discloses a parallel voltage and temperature sensing integrated terminal structure. (Refer to...) Figure 1-2 A parallel voltage and temperature sensing integrated terminal structure includes a housing 1, a first fixing part 2, a second fixing part 3, a temperature sensing acquisition module, and a voltage acquisition module. In this embodiment, the housing 1 is made of all-metal material. The first fixing part 2 and the second fixing part 3 are integrally formed with the housing 1. The first fixing part 2 and the second fixing part 3 extend outward along the length direction of the housing 1 and are horizontally spaced.

[0032] Correspondingly, the temperature sensing module is installed on the first fixed part 2, and the voltage sensing module is installed on the second fixed part 3. Therefore, the housing 1 adopts a functional integrated structure. The temperature sensing module and the voltage sensing module are arranged in parallel inside the housing 1, which reduces the occurrence of signal crosstalk and improves the detection accuracy of the device.

[0033] Furthermore, while achieving simultaneous monitoring of both temperature and voltage parameters, the device optimizes space utilization through a compact layout, effectively saving internal space in the battery pack.

[0034] Specifically, in this embodiment, the housing 1 is configured with a flat structure, and a wiring portion 5 is provided on the other side of the housing 1. The wiring portion 5 and the housing 1 are integrally formed.

[0035] Therefore, based on the flat shape of the housing 1 and its adaptability to the narrow space inside the battery pack, the wiring section 5 integrates the wire harness management function. Through the continuous structural design, the wiring harness path planning and fixing are realized, which not only ensures the reliability of electrical connection, but also further improves the space utilization efficiency and assembly convenience.

[0036] Meanwhile, in this embodiment, the first fixing part 2 is a cylindrical structure formed by folding and enclosing the shell 1 after continuous stamping, and serves as a potting area 22 for sealing the temperature sensing module in the first fixing part 2 with silicone.

[0037] Correspondingly, the continuous stamping process enables the shell 1 to form a seamless cylindrical structure, which not only ensures the streamline continuity of the metal of the shell 1, but also reduces the decrease in strength of the material after heat input caused by traditional welding, thereby enhancing the axial tensile strength of the shell 1.

[0038] Furthermore, the potting process uses epoxy resin, and the pressure gradient control is used to achieve complete wetting of the adhesive in the first fixing part 2, forming a triple protective barrier including mechanical sealing, chemical bonding and elastic filling. This effectively enhances the sealing and protection of the first fixing part 2, and indirectly improves the response rate and detection accuracy of the temperature sensing module, enabling the temperature sensing module to operate reliably for a long time under the harsh conditions of the battery pack.

[0039] Furthermore, in this embodiment, the outer wall of the first fixing part 2 is integrally formed with an inwardly recessed and spaced first anti-slip groove 21 along the length direction of the first fixing part 2, in order to increase the effective contact area, thereby improving the friction coefficient of the inner wall of the first fixing part 2. After the colloid is cured, it forms a dog-tooth interlocking mechanical anchor with the first anti-slip groove 21, effectively reducing the occurrence of the temperature sensing acquisition module falling off under vibration conditions after sealing.

[0040] In addition, the second fixing part 3 includes a first wing 31 and a second wing 32. In this embodiment, the first wing 31 and the second wing 32 are integrally formed with the second fixing part 3. There are two of each of the first wing 31 and the second wing 32, which are symmetrical about the extension direction of the second fixing part 3.

[0041] Furthermore, the first wing 31 and the second wing 32 are spaced apart along the length direction of the second fixing part 3 and extend obliquely upward. Therefore, the first wing 31 and the second wing 32 respectively surround at least a part of the second fixing part 3 to form a crimping area 33 for crimping the voltage acquisition module.

[0042] Correspondingly, the first wing 31 and the second wing 32 are spaced apart to form a guide channel, which effectively reduces the axial deviation of the wire harness installation position and is used to bend and crimp the voltage acquisition module. The double wing wrapping structure generates a symmetrical support effect during the bending and crimping process. The double wing wrapping structure disperses the bending stress of the wire harness to both sides, extending the service life of the wire.

[0043] Meanwhile, in this embodiment, the second wing 32 is integrally formed with an inwardly recessed and spaced second anti-slip groove 321 along the length direction of the second fixing part 3. The two ends of the second anti-slip groove 321 extend along the inner wall of the second wing 32 and form a mechanical snap with the inner wall of the second wing 32, which improves the lateral tensile strength of the second wing 32 and effectively reduces the occurrence of voltage acquisition module chip detachment. The second anti-slip groove 321 also disperses and conducts the vibration energy of the wire harness through the inner wall of the wing, further increasing the vibration resistance. This structural design, through the synergistic effect of geometric constraints and energy dissipation, enables the voltage acquisition module to maintain a reliable connection in the high-frequency vibration environment of the battery pack.

[0044] On the other hand, it also includes a reinforcing part 4, which is connected between the first fixing part 2 and the housing 1 and between the second fixing part 3 and the housing 1. In this embodiment, the reinforcing part 4 is curved, and the reinforcing part 4, the housing 1, the first fixing part 2 and the second fixing part 3 are all integrally formed.

[0045] Therefore, the curved surface geometry of the reinforcing part 4 optimizes the mechanical load in the joint area of ​​the first fixing part 2, the second fixing part 3 and the shell 1. By continuously changing the curvature, the stress concentration coefficient of the traditional right-angle connection structure is reduced, making the stress gradient distribution more gradual.

[0046] Furthermore, the strengthening part 4 generates controllable elastic deformation under dynamic load, absorbing and converting the vibration energy generated during the operation of the battery pack. While ensuring structural stiffness, it achieves the dual goals of stress distribution optimization and vibration attenuation, which is in line with the technological development trend of lightweight and high reliability of new energy battery packs.

[0047] On the other hand, folding portions 51 are provided on both sides of the wiring portion 5 perpendicular to the wiring portion 5. A limiting member 52 extends from the end of the folding portion 51 away from the wiring portion 5 toward the wiring portion 5. In this embodiment, the wiring portion 5, the folding portion 51 and the limiting member 52 are all integrally formed. The folding portion 51 is provided with an arc-shaped structure. The included angle between the limiting member 52 and the folding portion 51 is set as an acute angle.

[0048] Therefore, the vertical arrangement of the folding part 51 and the wiring part 5 forms a guide channel. Combined with the acute angle design of the limiting part 52, it realizes the three-point positioning of the wire harness, and helps to lock the position of the wire harness and provide mechanical protection, effectively reducing the occurrence of wire harness mess and friction damage.

[0049] The implementation principle of the parallel voltage and temperature sensing integrated terminal structure in this application embodiment is as follows: the device can simultaneously collect the temperature signal and voltage signal of the battery pack through the housing 1 with integrated functions. The parallel layout between the temperature sensing module and the voltage sensing module reduces signal crosstalk, and the wiring part 5 guides the wiring harness to improve assembly efficiency. This achieves integrated monitoring of dual parameters and saves internal space of the battery pack.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A parallel voltage and temperature sensing integrated terminal structure, characterized in that, It includes a housing (1), a first fixing part (2), a second fixing part (3), a temperature sensing acquisition module and a voltage acquisition module. The first fixing part (2) and the second fixing part (3) extend outward along the length direction of the housing (1) and are horizontally spaced apart. The temperature sensing acquisition module is supported on the first fixing part (2) and the voltage acquisition module is supported on the second fixing part (3).

2. The parallel voltage and temperature sensing integrated terminal structure according to claim 1, characterized in that, The housing (1) is configured in a flat shape, and a wiring section (5) extends in the opposite direction on the other side of the housing (1).

3. The parallel voltage and temperature sensing integrated terminal structure according to claim 1, characterized in that, It also includes a reinforcing part (4), which is curved and is connected between the first fixing part (2) and the housing (1) and between the second fixing part (3) and the housing (1).

4. The parallel voltage and temperature sensing integrated terminal structure according to claim 1, characterized in that, The first fixing part (2) is formed by continuously stamping and folding the housing (1) to form a cylindrical structure, which is used for potting and encapsulating the temperature sensing module.

5. The parallel voltage and temperature sensing integrated terminal structure according to claim 4, characterized in that, The outer wall of the first fixing part (2) is provided with inwardly recessed first anti-slip grooves (21) at intervals along the length direction of the first fixing part (2).

6. The parallel voltage and temperature sensing integrated terminal structure according to claim 1, characterized in that, The second fixing part (3) includes a first wing (31) and a second wing (32). The first wing (31) and the second wing (32) extend outward along the length direction of the second fixing part (3) and are spaced apart. The first wing (31) and the second wing (32) respectively surround at least a part of the second fixing part (3) to form a crimping area (33) for crimping the voltage acquisition module.

7. The parallel voltage and temperature sensing integrated terminal structure according to claim 6, characterized in that, The second wing (32) is provided with inwardly recessed second anti-slip grooves (321) at intervals along the length direction of the second fixing part (3), and the two ends of the second anti-slip grooves (321) extend along the inner wall of the second wing (32).

8. The parallel voltage and temperature sensing integrated terminal structure according to claim 2, characterized in that, Folding portions (51) are provided on both sides of the wiring portion (5) perpendicular to the wiring portion (5), and a limiting member (52) is provided at one end of the folding portion (51) away from the wiring portion (5) toward the wiring portion (5).

Images