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CN-224232691-U - Temperature sampling structure and battery pack

CN224232691UCN 224232691 UCN224232691 UCN 224232691UCN-224232691-U

Abstract

The application discloses a temperature sampling structure and a battery pack, which belong to the technical field of batteries, wherein the temperature sampling structure is used for detecting the temperature of a single battery, one side of the single battery along a second direction is provided with a circuit component, and the temperature sampling structure comprises: and the detection piece is connected with the large battery surface of the single battery and is used for detecting the temperature of the large battery surface. The detection part is arranged on the large surface of the battery and can be more close to the heating source, so that the transmission distance from the inside to the detection part is reduced, heat dissipation and temperature attenuation are reduced, measurement errors are reduced, the accuracy of sampling is improved, the risk of thermal runaway caused by abnormal temperature of the battery is reduced, and the safety is improved. Meanwhile, the connecting piece on the temperature sampling structure not only can connect the detecting piece with the circuit component, but also can directly install the detecting piece on the large surface of the battery through the bearing part, so that the convenience of installing the detecting piece is improved.

Inventors

  • YANG QIUPING
  • GAO XING
  • ZHOU WENXING
  • GUO FUJIE

Assignees

  • 浙江凌骁能源科技有限公司
  • 浙江零跑科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (10)

  1. 1. A temperature sampling structure for detecting a temperature of a single battery (10), the single battery (10) being provided with a circuit assembly (30) along one side of a second direction (Y), the temperature sampling structure comprising: A detection member (21) connected to the battery large surface (11) of the single battery (10) and configured to detect the temperature of the battery large surface (11); The connecting piece (22) is respectively connected with the detecting piece (21) and the circuit assembly (30), the connecting piece (22) comprises a bearing part (221), and the detecting piece (21) is connected with the large battery surface (11) through the bearing part (221).
  2. 2. The temperature sampling structure according to claim 1, characterized in that the connection (22) further comprises: -an intermediate portion (222), the intermediate portion (222) comprising an electrical circuit (224), the electrical circuit (224) being connected to the carrier portion (221); And a first abutting part (223) connected to one side of the circuit (224) away from the bearing part (221), wherein the first abutting part (223) is used for being connected with the circuit assembly (30).
  3. 3. The temperature sampling structure according to claim 2, characterized in that the circuit (224) is a flexible structure.
  4. 4. The temperature sampling structure according to claim 2, characterized in that the intermediate portion (222) and the carrying portion (221) are of one-piece construction.
  5. 5. A battery pack, comprising: The plurality of single batteries (10) are arranged at intervals along a first direction (X), and each single battery (10) is provided with a battery large surface (11) along two sides of the first direction (X); A circuit assembly (30) located at one side of the unit cell (10) along a second direction (Y) and connected to the unit cell (10), the second direction (Y) intersecting the first direction (X); The temperature sampling structure according to any one of claims 1 to 4, which is connected to the battery face (11), the circuit assembly (30), respectively.
  6. 6. The battery pack according to claim 5, wherein the detecting member (21) of the temperature sampling structure is connected to the middle of the battery large face (11) through a connecting member (22).
  7. 7. The battery pack according to claim 5, wherein the circuit assembly (30) comprises a second docking portion (31), the second docking portion (31) being connected with the first docking portion (223) of the temperature sampling structure.
  8. 8. The battery pack according to claim 5, wherein the unit battery (10) includes a connection portion (12), the connection portion (12) is disposed on the battery large surface (11), the detection member (21) of the temperature sampling structure is connected to a carrying portion (221), and the carrying portion (221) is connected to the battery large surface (11) through the connection portion (12).
  9. 9. The battery pack according to claim 8, wherein the connection portion (12) is a magnetic coating that is magnetically connected with the carrying portion (221).
  10. 10. The battery pack of claim 5, wherein the battery pack further comprises: The plurality of separators (40) are arranged at intervals along the first direction (X), a placement space (41) is formed between two adjacent separators (40), each single battery (10) is respectively positioned in one placement space (41) and connected with two adjacent separators (40), and one side, away from the large battery surface (11), of the detection part (21) of the temperature sampling structure is connected with the separators (40); The side of the separating piece (40) facing the single battery (10) is provided with a containing cavity (42), and at least part of the temperature sampling structure is arranged in the containing cavity (42).

Description

Temperature sampling structure and battery pack Technical Field The application belongs to the technical field of batteries, and particularly relates to a temperature sampling structure and a battery pack. Background The battery pack is an integral device which combines a plurality of single batteries (battery cells) in a serial-parallel connection mode and integrates a management system, a heat dissipation system and a protection structure. The energy storage device is a core component of energy storage equipment and is widely applied to the fields of electric automobiles, hybrid electric automobiles, energy storage power stations and the like. In order to know the temperature change of the single battery in the working process, the temperature of the single battery needs to be sampled, but the sampling accuracy is low, and the temperature difference between the single battery and the inside of the single battery is large. Disclosure of utility model The embodiment of the utility model aims to provide a temperature sampling structure and aims to solve the technical problem that the accuracy of temperature sampling of a single battery is low. According to the technical scheme, the temperature sampling structure is used for detecting the temperature of a single battery, one side of the single battery along a second direction is provided with a circuit component, and the temperature sampling structure comprises: the detection piece is connected with the large battery surface of the single battery and is used for detecting the temperature of the large battery surface; The connecting piece is respectively connected with the detecting piece and the circuit assembly, the connecting piece comprises a bearing part, and the detecting piece is connected with the large battery surface through the bearing part. In some embodiments, the connector comprises: An intermediate portion comprising a circuit connected to the carrier portion; the first butt joint part is connected to one side of the circuit, which is away from the bearing part, and the first butt joint part is used for being connected with the circuit assembly. In some embodiments, the circuit is a flexible structure. In some embodiments, the intermediate portion and the load-bearing portion are of unitary construction. The embodiment of the application also provides a battery pack, which comprises: The plurality of single batteries are arranged at intervals along a first direction, and the two sides of each single battery along the first direction are provided with large battery surfaces; The circuit component is positioned at one side of the single battery along a second direction and is connected with the single battery, and the second direction is intersected with the first direction; The temperature sampling structure according to any one of the above claims, which is connected to the battery face and the circuit component, respectively. In some embodiments, the detecting member of the temperature sampling structure is connected to the middle of the large surface of the battery through a connecting member. In some embodiments, the circuit assembly includes a second docking portion that is connected with the first docking portion of the temperature sampling structure. In some embodiments, the single battery includes a connection portion, the connection portion is disposed on the large battery surface, the detection member of the temperature sampling structure is connected to a carrying portion, and the carrying portion is connected to the large battery surface through the connection portion. In some embodiments, the connection portion is a magnetic coating that is magnetically attached to the carrier portion. In some embodiments, the battery pack further comprises: The plurality of separators are arranged at intervals along the first direction, a placement space is arranged between two adjacent separators, each single battery is respectively positioned in one placement space and connected with two adjacent separators, and one side, away from the large surface of the battery, of the detection part of the temperature sampling structure is connected with the separator; The separator has a holding chamber towards one side of battery cell, at least part of temperature sampling structure set up in hold the intracavity. The temperature sampling structure has the beneficial effects that the temperature sampling structure is used for detecting the temperature of the single battery, one side of the single battery along the second direction is provided with the circuit component, the temperature sampling structure comprises a detection piece and a connecting piece, the detection piece is connected with the large battery surface of the single battery and is used for detecting the temperature of the large battery surface, the connecting piece is respectively connected with the detection piece and the circuit component, the connecting piece comprises a bearing part, and