FPC temperature acquisition structure

Abstract

The application discloses a kind of FPC temperature acquisition structures, including temperature acquisition module and the bridging structure of connecting temperature acquisition module and aluminum base FPC, temperature acquisition module is by temperature acquisition shell, temperature probe and conducting sheet composition, bridging structure is by bridge and terminal connector composition, the plug-in part of temperature acquisition shell is inserted in the plug-in interface of bridge and is provided with sealing structure between the two, the connection sealing property of conducting sheet and terminal connector can be guaranteed by means of sealing structure, and temperature probe is fixed in mounting groove by pouring glue and is connected with conducting sheet, the connection sealing property of temperature probe and conducting sheet can be guaranteed, the temperature acquisition module of the present technical solution is connected quickly by connector between bridge, so that temperature information collected by temperature acquisition module is transmitted to aluminum base FPC by bridge, such design is convenient to install and maintain, reduce production cost, simultaneously have dustproof sealing effect, improve entire product protection grade and safety factor.

Description

Technical Field

[0001] This invention relates to the field of electric battery technology, and more specifically to an FPC temperature acquisition structure. Background Technology

[0002] With the increasing number of new energy vehicles on the road, the use of battery packs is also growing. Automotive battery packs are mainly composed of multiple battery cell modules connected in series and parallel. Flexible printed circuit boards (FPCs) are used to connect these modules to collect information such as voltage and temperature. Current FPCs are typically manufactured using copper substrates and surface mount technology (SMT) is used to mount nickel strips and NTC components onto the FPC to obtain temperature information from the battery cell modules, thus enabling real-time monitoring and acquisition of battery pack temperature data.

[0003] With the increasing demand for automotive battery packs, more and more manufacturers are adopting aluminum-based FPCs to better control costs. This is because aluminum is relatively inexpensive. However, aluminum is a reactive metal that easily forms aluminum oxide on its surface, making it impossible to mount nickel strips and temperature sensors on aluminum-based FPCs using traditional surface mount technology (SMT). Therefore, some manufacturers are using connectors to connect temperature sensors to aluminum-based FPCs. Existing connectors include... Figure 10 The FPC temperature acquisition structure shown includes a temperature acquisition module, a connector structure, and an aluminum-based FPC. The temperature acquisition module includes a copper-based circuit board 01 with substrate connection lines 04, two reinforcing plates 02 glued to the front and back of the copper-based circuit board 01 by adhesive, and a temperature sensor 03 attached to the copper-based circuit board. The connector structure includes a connector 05 that is plugged into the copper-based circuit board. The connector 05 is provided with a first connection terminal 06 and a second connection terminal 07. Specifically, the connector 05 is plugged into the copper-based circuit board 01 so that the first connection terminal is electrically connected to the copper-based circuit board. Then, the connector is connected to the aluminum-based FPC through the second connection terminal, thereby realizing the electrical connection between the temperature acquisition module and the aluminum-based FPC.

[0004] The FPC temperature sensing structure described above still has the following problems: First, the structure of this temperature sensing module is complex, requiring double-sided reinforcing plates to strengthen the copper-based circuit board, and the entire copper-based circuit board area is large, requiring more materials and increasing production costs; second, the protection level of the copper-based circuit board and connector mating connection is low, with large connection gaps and even exposure, which prevents the copper-based circuit board from meeting the requirements for waterproofing and dustproofing, resulting in poor connection sealing and affecting the performance of the FPC temperature sensing structure. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that there are large gaps or even exposures when copper-based circuit boards and connectors are connected in the prior art, resulting in poor connection sealing, low product protection level and affecting product performance.

[0006] To solve the above-mentioned technical problems, the present invention provides an FPC temperature acquisition structure, including a temperature acquisition module and a bridging structure connecting the temperature acquisition module and the aluminum-based FPC, wherein;

[0007] The temperature sensing module includes: a temperature sensing housing, a temperature probe disposed in the temperature sensing housing, and at least one conductive sheet. The temperature sensing housing is wrapped around the conductive sheet and has a mounting groove for accommodating the temperature probe. The temperature probe is fixed in the mounting groove by potting glue and connected to the conductive sheet. The temperature sensing housing has a plug portion protruding towards the bridging structure side. One end of the conductive sheet extends to the plug portion and is partially exposed.

[0008] The bridging structure includes a bridge and at least one terminal connector disposed on the bridge. The front end of the bridge is provided with a plug interface that matches and connects to the plug portion. The terminal connector has a clamping portion disposed in the plug interface for clamping the conductive sheet, and a connecting portion extending out of the rear end of the bridge to connect to the aluminum-based FPC. A sealing structure is provided between the plug interface and the plug portion to maintain tight contact. When the plug portion is inserted into the plug interface, it drives the conductive sheet to form a plug-in engagement with the clamping portion.

[0009] As a preferred embodiment, the sealing structure is a sealing ring disposed between the plug and the connector, wherein the outer wall of the sealing ring has at least one ring of contact protrusions; the sealing ring is nested on the connector; or, the sealing ring is embedded in the inner wall of the connector around the connector.

[0010] As a preferred embodiment, the temperature sensing housing includes a positioning support member that forms a positioning fit with the conductive sheet, and the conductive sheet is fixedly connected inside the temperature sensing housing through the positioning support member.

[0011] As a preferred embodiment, the positioning support and the temperature sampling housing are fixedly connected or integrally formed.

[0012] As a preferred embodiment, two conductive sheets are provided on the positioning support member, and the positioning support member is provided with at least one positioning boss in a T-shape. Each positioning boss is formed with two spaced positioning slots between it and the positioning support member. The two conductive sheets are respectively engaged in the two positioning slots and are positioned relative to the positioning support member.

[0013] As a preferred embodiment, the positioning support includes a support base plate and a support boss connected to one end of the support base plate, as well as two positioning bosses respectively formed on the support base plate and the support boss. The support bosses are set higher than the support base plate, and the support base plate is provided with at least one limiting protrusion extending along its length direction and spaced between two conductive sheets.

[0014] As a preferred embodiment, the conductive sheet includes a positioning part that passes through the positioning support and the positioning groove formed by the two sets of positioning bosses, and a contact part that extends from the positioning part and connects to the plug part. A limiting wall is formed in the positioning groove between the positioning boss and the support boss. A bent part that cooperates with and abuts against the limiting wall is formed between the contact part and the positioning part. A contact protrusion that cooperates with the clamping part is integrally stamped on the contact part.

[0015] As a preferred embodiment, the temperature sensing housing has a cavity formed inside to accommodate the positioning support and two conductive sheets, with the other ends of the two conductive sheets extending into the mounting groove, and the temperature probe being an NTC element attached to the other end of the two conductive sheets.

[0016] As a preferred embodiment, the plug portion includes a plugging protrusion formed at one end of the temperature sensing housing, and two plug rod structures disposed on one side of the plugging protrusion. The sealing ring is fitted on the plugging protrusion, and one end of the two conductive pieces is inserted into the plug rod structure. The plug rod structure has a contact groove with exposed conductive pieces. The terminal connector is inserted into the contact groove through the clamping part to form a plug-in engagement with the conductive pieces.

[0017] As a preferred embodiment, the insertion rod structure includes two guide rods arranged in parallel opposite directions and a contact groove formed between the two guide rods, and two limiting slots are provided on the opposite side walls of the two guide rods, so that the two sides of the contact portion of the conductive sheet are respectively inserted into the two limiting slots.

[0018] As a preferred embodiment, the clamping part includes a lower engagement protrusion formed by bending one end of the terminal connector, and two upper engagement protrusions bent and extended to form on both sides of the terminal connector and higher than the lower engagement protrusion. The two upper engagement protrusions are respectively located above the two sides of the lower engagement protrusion, and a bite structure for inserting a conductive sheet is formed between the lower engagement protrusion and the two upper engagement protrusions. The lower engagement protrusion and the two upper engagement protrusions respectively abut against the two sides of the conductive sheet.

[0019] As a preferred embodiment, the connecting portion includes a connecting piece extending to one side of the aluminum-based FPC. The connecting piece is pressed and fixed to the aluminum-based FPC by a toothed structure and contacts the connection circuit on the aluminum-based FPC. The toothed structure includes multiple pressing teeth arranged alternately on the two sides of the connecting piece. After piercing the aluminum-based FPC, the multiple pressing teeth are pressed onto the same connection circuit of the aluminum-based FPC.

[0020] As a preferred embodiment, a locking structure is provided between the temperature sensing housing and the bridge to keep their relative positions fixed. The locking structure includes a metal frame covering the outside of the bridge, a plurality of elastic buckles disposed on the port sidewall of the metal frame, and a plurality of buckle protrusions correspondingly disposed at one end of the temperature sensing housing and engaging with the plurality of elastic buckles.

[0021] The technical solution of this invention has the following advantages compared with the prior art:

[0022] 1. In the FPC temperature acquisition structure provided by this invention, the temperature acquisition module is electrically connected to the aluminum-based FPC via a bridge. This temperature acquisition module consists of a temperature acquisition shell, a temperature probe, and a conductive sheet. The bridge is connected to the aluminum-based FPC via a terminal connector. The plug of the temperature acquisition shell is inserted into the connector's interface, causing the conductive sheet to engage with the clamping part of the terminal connector, thereby establishing circuit continuity between the conductive sheet, the terminal connector, and the aluminum-based FPC. A sealing structure is provided between the connector and the plug to seal and isolate the connection gap, ensuring the sealing performance of the conductive sheet and the terminal connector, as well as the temperature measurement... The probe is sealed in the mounting groove and connected to the conductive sheet using potting compound. The potting compound structure ensures a tight seal between the temperature probe and the conductive sheet, preventing the conductive sheet from being exposed and thus improving the overall protection level of the product, achieving waterproof and dustproof effects. The temperature sensing module and the bridge are quickly connected via connectors using this technology, allowing the temperature information collected by the temperature sensing module to be transmitted to the aluminum-based FPC through the bridge. This design has excellent electrical and mechanical properties, achieving modularity and convenient installation, facilitating installation and maintenance, reducing production costs, and providing dustproof sealing, improving product safety and environmental adaptability.

[0023] 2. In the FPC temperature acquisition structure provided by this invention, the conductive sheet is fixedly connected to the temperature acquisition housing through a positioning support. The function of this positioning support is to position and install the conductive sheet and enhance the structural strength of the conductive sheet. Preferably, the positioning support and the temperature acquisition housing are integrally formed, that is, the pre-assembled positioning support and conductive sheet are integrally injection molded with the temperature acquisition housing using insert injection molding. During the injection molding process, the conductive sheet can withstand the impact of the plastic flow rate without deformation or positional displacement due to the supporting and fixing function of the positioning support. The installation position is accurate and reliable, ensuring product consistency. This temperature acquisition module has a simple structure, is easy to manufacture, simplifies the installation structure, reduces installation parts, and can make the conductive sheet smaller while ensuring the structural strength of the conductive sheet, which is beneficial to reducing the size of the temperature acquisition module and reducing production costs.

[0024] 3. In the FPC temperature acquisition structure provided by the present invention, the positioning support is provided with a T-shaped positioning boss, and two spaced positioning slots are formed between the positioning boss and the positioning support. Two conductive sheets are respectively snapped into the two positioning slots, thereby positioning and installing the two conductive sheets on the positioning support. At the same time, the two conductive sheets are separated by a certain distance, which can realize the integrated installation of the positioning support and the conductive sheets, which is beneficial to improving installation efficiency.

[0025] 4. In the FPC temperature acquisition structure provided by the present invention, the conductive sheet includes a positioning part inserted in the positioning slot and a contact part extending and connected in the plug part, and a bent part is formed between the contact part and the positioning part. According to the positioning slot formed between the positioning boss and the support boss, a limiting wall is formed. When the conductive sheet is installed on the positioning support, the bent part is driven to cooperate with the limiting wall to abut against it, thereby limiting the installation of the conductive sheet.

[0026] 5. In the FPC temperature acquisition structure provided by the present invention, the plug has two plug-in structures. By opening contact grooves on the plug-in structures to expose the conductive sheet, and by fitting a sealing ring on the plug-in protrusion, the advantages of this design are that the plug-in structures provide support, fixation, and guiding connection for one end of the conductive sheet, further improving the structural strength and verticality of the conductive sheet, ensuring that the conductive sheet remains horizontal and can be plugged into the clamping part, thus avoiding deformation and shaking of the conductive sheet during insertion and removal, effectively enhancing the stability of the conductive sheet connection. When the plug is plugged into the interface, the plug-in protrusion achieves a sealed connection with the interface through the sealing ring, ensuring a reliable connection between the conductive sheet and the clamping part in the sealed environment of the interface, and ensuring a sealed connection between the temperature acquisition module and the bridge.

[0027] 6. In the FPC temperature acquisition structure provided by the present invention, the clamping part is composed of a lower biting protrusion and two upper biting protrusions, and a bite structure is formed between the lower biting protrusion and the two upper biting protrusions. With this structure, when the plug is inserted into the corresponding interface, one end of the conductive sheet is inserted into the bite structure. The lower biting protrusion and the two upper biting protrusions press against the two sides of the conductive sheet respectively, thereby achieving the clamping and fixing effect on the conductive sheet, improving the clamping force of the clamping part on the conductive sheet, ensuring tight and reliable contact, avoiding loosening, and ensuring reliable and stable electrical contact between the terminal connector and the conductive sheet.

[0028] 7. In the FPC temperature acquisition structure provided by the present invention, the terminal connector is fixed to the aluminum-based FPC by pressing with multiple protruding tooth structures. The advantage of this design is that the terminal connector can maintain a fixed connection with the aluminum-based FPC by pressing, and at the same time, the terminal connector can achieve an electrical connection with the circuit on the aluminum-based FPC. This avoids the use of traditional nickel sheet soldering and does not require materials such as solder paste and flux to obtain a reliable connection. It has the advantages of high connection strength, good tightness and good impact resistance. The riveting process is mature, adaptable to automated production, and improves production efficiency.

[0029] 8. In the FPC temperature acquisition structure provided by the present invention, multiple toothed structures are arranged alternately on both sides of the connecting piece and pressed onto the same circuit of the aluminum-based FPC. This increases the contact area between the connecting piece and the connection circuit on the aluminum-based FPC, making the contact more firm and reliable, and has excellent tensile and shear strength. It ensures close contact between the toothed structure and the aluminum-based FPC, so that an electrical connection is formed between the terminal connector and the aluminum-based FPC. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the FPC temperature acquisition structure provided for the invention;

[0032] Figure 2 A cross-sectional schematic diagram of the FPC temperature acquisition structure provided for the invention;

[0033] Figure 3 A schematic diagram of the split-explosion structure of the FPC temperature acquisition structure provided for the invention;

[0034] Figure 4This is a schematic diagram of the temperature sampling module of the invention.

[0035] Figure 5 This is a schematic diagram of the separate structure of the temperature-collecting housing and the conductive sheet of the invention.

[0036] Figure 6 A schematic diagram of the bridge device for the invention;

[0037] Figure 7 A schematic diagram of the bridge device of the invention at the interface position;

[0038] Figure 8 This is a schematic diagram of the installation structure of the conductive sheet and the positioning support of the invention.

[0039] Figure 9 This is a structural schematic diagram of the terminal connector of the invention.

[0040] Figure 10 This is a schematic diagram of an existing FPC temperature sampling structure.

[0041] Figure descriptions: a. Temperature sensing module; b. Bridging structure; 1. Temperature sensing housing; 11. Plug part; 111. Plug protrusion; 112. Guide rod; 113. Limiting slot; 114. Contact groove; 12. Mounting groove; 13. Snap-on boss; 2. Conductive sheet; 21. Positioning part; 22. Contact part; 23. Bending part; 3. Temperature probe; 4. Bridging device; 41. Plug interface; 42. Plug hole; 43. 5. Pressure plate; 6. Terminal connector; 7. Clamping part; 8. Lower engagement protrusion; 9. Upper engagement protrusion; 10. Connecting part; 11. Connecting piece; 12. Pressing tooth; 13. Sealing ring; 14. Positioning support; 15. Positioning boss; 16. Positioning slot; 17. Support base plate; 18. Support boss; 19. Limiting protrusion; 20. Metal frame; 21. Elastic buckle plate; 22. Aluminum-based FPC. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Example

[0046] This invention provides, for example Figure 1-9 The FPC temperature acquisition structure shown includes a temperature acquisition module a and a bridging structure b connecting the temperature acquisition module a and the aluminum-based FPC 9. The following describes the arrangement of the temperature acquisition module a and the bridging structure b:

[0047] The temperature sensing module a includes: a temperature sensing housing 1, a temperature measuring probe 3 disposed in the temperature sensing housing 1, and at least one conductive sheet 2. The temperature sensing housing 1 is wrapped around the conductive sheet 2 and has a mounting groove 12 for accommodating the temperature measuring probe 3. The temperature measuring probe 3 is fixed in the mounting groove 12 by potting glue and connected to the conductive sheet 2. The temperature sensing housing 1 has a plug portion 11 protruding towards the side of the bridging structure b. One end of the conductive sheet 2 extends to the plug portion 11 and is partially exposed.

[0048] The bridging structure b includes a bridge 4 and at least one terminal connector 5 disposed on the bridge 4. The front end of the bridge 4 is provided with a plug interface 41 that matches and connects to the plug portion 11. The terminal connector 5 has a clamping portion 51 disposed in the plug interface 41 for clamping the conductive sheet 2, and a connecting portion 52 extending out of the rear end of the bridge 4 to connect to the aluminum-based FPC 9. A sealing structure is provided between the plug interface 41 and the plug portion 11 to maintain tight contact. When the plug portion 11 is inserted into the plug interface 41, it drives the conductive sheet 2 to form a plug-in engagement with the clamping portion 51.

[0049] In the above embodiment, the temperature sampling module is electrically connected to the aluminum-based FPC via a bridge 4. This temperature sampling module consists of a temperature sampling housing 1, a temperature measuring probe 3, and a conductive sheet 2. The bridge 4 is connected to the aluminum-based FPC via a terminal connector. The plug portion 11 of the temperature sampling housing 1 is inserted into the plug interface 41 of the bridge 4, causing the conductive sheet 2 to engage with the clamping portion 51 of the terminal connector 5. This establishes circuit continuity between the conductive sheet 2, the terminal connector 5, and the aluminum-based FPC. A sealing structure is provided between the plug interface 41 and the plug portion 11 to seal and isolate the connection gap between them, thereby ensuring the sealing performance of the connection between the conductive sheet 2 and the terminal connector 5, and the measurement... The temperature probe 3 is sealed in the mounting groove 12 with potting compound and connected to the conductive sheet 2. The potting compound structure ensures the sealing of the connection between the temperature probe 3 and the conductive sheet 2, thus preventing the conductive sheet 2 from being exposed. This improves the overall protection level of the product and achieves waterproof and dustproof effects. The temperature sensing module and the bridge are quickly connected via connectors, so that the temperature information collected by the temperature sensing module is transmitted to the aluminum-based FPC through the bridge 4. This design has excellent electrical and mechanical properties, achieves modularity and convenient installation, facilitates installation and maintenance, reduces production costs, and also has a dustproof and sealing function, improving the safety factor of product use and making it highly adaptable to the environment.

[0050] As a preferred embodiment, refer to Figure 1-2 The sealing structure is a sealing ring 6 disposed between the connector 41 and the plug portion 11. The outer wall of the sealing ring 6 has at least one ring of contact protrusions. The sealing ring 6 is nested on the plug portion 11 and inserted into the connector 41 of the bridge 4 through the plug portion 11, ensuring tight contact between the sealing ring 6 and the inner wall of the connector 41 to form a sealing mating surface. This ensures that the conductive sheet 2 and the terminal connector 5 are not exposed during the connection of the connector 41 and provides excellent sealing performance. Alternatively, the sealing ring 6 can be embedded around the inner wall of the connector 41, achieving a similar sealing fit between the connector portion and the connector 41.

[0051] The following is combined with Figure 1-5 The specific structure of the temperature sampling module is described in detail below:

[0052] The temperature sensing housing 1 includes a positioning support 7 that forms a positioning fit with the conductive sheet 2. The conductive sheet 2 is fixedly connected to the temperature sensing housing 1 through the positioning support 7. Preferably, the positioning support 7 and the temperature sensing housing 1 are integrally formed. Specifically, the pre-assembled positioning support 7 and the conductive sheet 2 are integrally injection molded with the temperature sensing housing 1 using insert injection molding. The function of this positioning support 7 is to position and install the conductive sheet 2 and to enhance the structural strength of the conductive sheet 2. During the injection molding process, the conductive sheet 2 can withstand the impact of the plastic flow rate without deformation or positional displacement due to the support and fixation of the positioning support 7. The installation position is accurate and reliable, ensuring product consistency. This temperature sensing module has a simple structure, is easy to mold and manufacture, simplifies the installation structure, reduces the number of installation parts, and can make the conductive sheet 2 smaller while ensuring the structural strength of the conductive sheet 2. This is beneficial for reducing the size of the temperature sensing module and lowering production costs.

[0053] In a further preferred embodiment, two conductive sheets 2 are provided on the positioning support 7. The positioning support 7 is provided with at least one positioning boss 71 in a T-shape. Each positioning boss 71 and the positioning support 7 are formed with two spaced positioning slots 72. The two conductive sheets 2 are respectively engaged in the two positioning slots 72 and positioned relative to the positioning support 7, thereby positioning and installing the two conductive sheets 2 on the positioning support 7. At the same time, the two conductive sheets 2 are separated from each other by a certain distance. This can realize the integrated installation of the positioning support 7 and the conductive sheets 2, which is beneficial to improving installation efficiency. The temperature-collecting housing 1 has a cavity formed inside to accommodate the positioning support 7 and two conductive sheets 2. The other ends of the two conductive sheets 2 extend into the mounting groove 12. The temperature probe 3 is an NTC element attached to the other end of the two conductive sheets 2. The NTC element is encapsulated and fixed in the mounting groove 12 by a thermally conductive adhesive structure, thereby achieving a sealed connection between the NTC element and the two conductive sheets 2. During installation, the temperature-collecting housing is installed in the preset position of the battery cell, and the temperature information of the battery cell is collected by the NTC element. Then, the collected temperature information is transmitted to the aluminum-based FPC through a bridging structure.

[0054] As a specific structural arrangement, the positioning support 7 includes a support base plate 73 and a support boss 74 connected to one end of the support base plate 73, as well as two positioning bosses 71 respectively formed on the support base plate 73 and the support boss 74. The support boss 74 is set higher than the support base plate 73. The support base plate 73 is provided with at least one limiting protrusion 75 extending along its length direction, and the limiting protrusion 75 is positioned between the two conductive sheets 2. As can be seen from the above structure, there are two positioning bosses 71 on the positioning support 7, and two sets of positioning slots 72 are formed between them and the positioning support 7, thereby achieving a multi-point positioning effect for the two conductive sheets 2 on the positioning support 7, ensuring the stability of the conductive sheet installation.

[0055] Combination Figure 5 and Figure 8 As shown, the conductive sheet 2 includes a positioning part 21 that passes through the positioning groove 72 formed by the positioning support 7 and the two positioning bosses 71, and a contact part 22 that extends from the positioning part 21 and connects to the plug part 11. The NTC element is mounted on the positioning part 21 of the conductive sheet 2. A limiting wall is formed in the positioning groove 72 between the positioning bosses 71 and the support bosses 74. A bent part 23 is formed between the contact part 22 and the positioning part 21. The conductive sheet 2 is installed on the positioning support 7, and the bent part 23 is driven to cooperate with the limiting wall, thereby limiting the installation of the conductive sheet 2. It has good tensile and shear resistance, thereby enhancing the installation and fastening effect of the conductive sheet 2 and making it less prone to loosening. Since the contact part 22 is used to insert and cooperate with the clamping part 51 of the terminal connector 5, a contact protrusion that cooperates with the clamping part 51 is integrally stamped on the contact part 22, which can increase the contact surface between the contact part and the clamping part and make the contact tighter.

[0056] The following combination Figure 4-5 The specific arrangement of the plug portion 11 is described in detail below:

[0057] The plug portion 11 includes a plugging protrusion 111 formed at one end of the temperature-collecting housing 1, and two plug rod structures disposed on one side of the plugging protrusion 111. The plugging protrusion 111 is adapted to the shape and size of the plug interface 41, and the sealing ring 6 is fitted on the plugging protrusion 111. One end of each of the two conductive pieces 2 is inserted into the two plug rod structures. The plug rod structures have contact grooves 114 that expose a portion of the conductive pieces 2. The terminal connector 5 is provided in the bridge 4 for each of the two conductive pieces 2. The plug interface 41 has two plug rod holes 42 formed at intervals to mate with the two plug rod structures. The insertion hole 42 accommodates the clamping part 51 of the terminal connector 5. Since the two ends of the conductive sheet 2 belong to the positioning part 21 and the contact part 22 respectively, the contact part 22 extends and passes through the contact. When the plug part 11 is inserted into the insertion interface 41, the terminal connector 5, through the clamping part 51, inserts into the contact groove 114 to form a plug-in fit with the conductive sheet 2. Simultaneously, the plugging protrusion 111 achieves a sealed connection with the insertion interface 41 through the sealing ring 6, ensuring a reliable connection between the conductive sheet 2 and the clamping part 51 in the sealed environment of the insertion interface 41, and ensuring a sealed connection between the temperature sampling module a and the bridge 4. Further preferably, the insertion rod structure includes two parallel and opposite guide rods 112 and a contact groove 114 formed between the two guide rods 112. Two limiting slots 113 are provided on the opposite sidewalls of the two guide rods 112, allowing the two sides of the contact part of the conductive sheet 2 to be inserted into the two limiting slots 113 respectively. The advantage of this design is that the plug structure supports, fixes, and guides one end of the conductive sheet, further improving the structural strength and verticality of the conductive sheet. This ensures that the conductive sheet remains horizontal and can be inserted into the clamping part, thus preventing deformation and shaking of the conductive sheet during insertion and removal, and effectively enhancing the stability of the conductive sheet connection.

[0058] In this embodiment, although the preferred method is to integrally form the positioning support 7 with the temperature-collecting housing 1, it is clear that the positioning support 7 can also be fixedly connected to the temperature-collecting housing 1. The fixed connection can be achieved by snap-fit ​​connection, screw connection, or ultrasonic welding. Those skilled in the art can select the connection method between the positioning support 7 and the temperature-collecting housing 1 based on the above description; other equivalent embodiments will not be elaborated upon here.

[0059] The following is combined with Figure 1-2 , Figure 6-7 The specific structure of the bridging structure is described in detail below:

[0060] The terminal connector 5 and the bridge 4 are integrally formed or fixedly connected. The bridge 4 has a terminal slot formed in it to accommodate the terminal connector 5, and a pressure plate 43 is provided at the rear end of the bridge 4 to limit and press the terminal connector 5. The clamping part 51 is set in the insertion interface 41 of the bridge 4. Specifically, the clamping part 51 includes a lower engagement protrusion 511 bent from one end of the terminal connector 5, and two upper engagement protrusions 512 bent on both sides of the terminal connector 5 and extending above the lower engagement protrusion 511. The lower engagement protrusion 511 and the two upper engagement protrusions 512 form a jaw structure for inserting the conductive sheet 2. With this structure, when the plug part 11 is inserted into the socket 41, one end of the conductive sheet 2 is inserted into the jaw structure. The lower engagement protrusion 511 and the two upper engagement protrusions 512 press against the two sides of the conductive sheet 2, thereby achieving the clamping and fixing effect of the conductive sheet 2, increasing the clamping force of the clamping part 51 on the conductive sheet 2, ensuring tight and reliable contact, avoiding loosening, and ensuring reliable and stable electrical contact between the terminal connector and the conductive sheet.

[0061] like Figure 1 and Figure 9 As shown, the connecting part 52 includes a connecting piece 521 that extends horizontally to one side of the aluminum-based FPC 9. The connecting piece 521 is pressed and fixed to the aluminum-based FPC by a toothed structure and contacts the connection circuit on the aluminum-based FPC 9. The advantage of this design is that the terminal connector 5 can be fixedly connected to the aluminum-based FPC by the pressing method, while the terminal connector 5 can be electrically connected to the circuit on the aluminum-based FPC. This avoids the use of traditional nickel sheet soldering and does not require solder paste or flux to obtain a reliable connection. It has the advantages of high connection strength, good tightness and good impact resistance. The riveting process is mature, adaptable to automated production, and improves production efficiency. Specifically, the protruding tooth structure includes multiple pressing protrusions 522 staggered on both sides of the connecting piece 521. After piercing the aluminum-based FPC, the multiple pressing protrusions 522 are pressed onto the same connection circuit of the aluminum-based FPC. This installation can increase the contact area between the connecting piece 521 and the connection circuit on the aluminum-based FPC, making the contact more firm and reliable, and having good tensile and shear strength. It ensures tight contact between the pressing protrusions and the aluminum-based FPC and forms an electrical connection between the terminal connector and the aluminum-based FPC.

[0062] In the FPC temperature acquisition structure provided in this embodiment, the bridge 4 is pressed onto the aluminum-based FPC 9 via the terminal connector 5, so that the terminal connector 5 is electrically connected to the substrate circuit on the aluminum-based FPC. Then, the temperature acquisition module a is inserted into the bridge 4, so that the NTC element is electrically connected to the terminal connector 5 via the conductive sheet 2, thereby establishing a circuit connection between the temperature acquisition module a and the aluminum-based FPC. In this way, the aluminum-based FPC and the temperature acquisition module can be used together to acquire the temperature of the battery cell, which solves the problem in the prior art that temperature sensors cannot be directly mounted on the aluminum-based FPC, resulting in the FPC being unable to acquire the temperature of the battery cell normally. Furthermore, the temperature acquisition module in this embodiment can be pulled out from the bridge 4 to separate from the aluminum-based FPC, which is convenient for installation and disassembly, easy for maintenance and replacement, and will not cause any impact on the aluminum-based FPC, saving costs and improving the service life of the aluminum-based FPC.

[0063] To ensure the stability and reliability of the connection between the temperature sensing module a and the bridge 4, a locking structure is provided between the temperature sensing housing 1 and the bridge 4 to maintain their relative positions. (Refer to...) Figure 1 The locking structure includes a metal housing 8 covering the outside of the bridge 4, multiple elastic buckles 81 disposed on the port sidewall of the metal housing 8, and multiple snap-fit ​​protrusions 13 correspondingly disposed at one end of the temperature acquisition housing 1 and engaging with the multiple elastic buckles 81. This metal housing 8 has an electromagnetic shielding effect. The engagement between the multiple elastic buckles 81 and the multiple snap-fit ​​protrusions 13 locks the temperature acquisition module and the bridge. This design prevents the male plug and female socket from being accidentally disconnected or opened during use. The installation is stable and reliable, ensuring the safety and reliability of the connector during use and improving product performance.

[0064] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An FPC temperature acquisition structure, comprising a temperature acquisition module (a) and a bridging structure (b) connecting the temperature acquisition module (a) and an aluminum-based FPC (9), characterized in that: The temperature sampling module (a) includes: a temperature sampling housing (1) and a temperature probe (3) disposed in the temperature sampling housing (1) and at least one conductive sheet (2). The temperature sampling housing (1) is wrapped around the conductive sheet (2) and has a mounting groove (12) for accommodating the temperature probe (3). The temperature probe (3) is fixed in the mounting groove (12) by potting glue and connected to the conductive sheet (2). The temperature sampling housing (1) has a plug portion (11) protruding to the side of the bridging structure (b). One end of the conductive sheet (2) extends to the plug portion (11) and is partially exposed. The bridging structure (b) includes: a bridge (4) and at least one terminal connector (5) disposed on the bridge (4). The front end of the bridge (4) is provided with a plug interface (41) that matches and connects to the plug part (11), and a sealing structure is provided between the plug interface (41) and the plug part (11) to keep them in close contact. The terminal connector (5) has a clamping part (51) disposed in the plug interface (41) for clamping the conductive sheet (2), and a connecting part (52) extending out of the rear end of the bridge (4) to connect to the aluminum-based FPC (9). When the plug part (11) is inserted into the plug interface (41), it drives the conductive sheet (2) to form a plug-in engagement with the clamping part (51). The temperature collection housing (1) includes a positioning support (7) that forms a positioning fit with the conductive sheet (2), and the conductive sheet (2) is fixedly connected inside the temperature collection housing (1) through the positioning support (7); Two conductive sheets (2) are provided on the positioning support (7). The positioning support (7) is provided with at least one positioning boss (71) in a T-shape. Two positioning slots (72) are formed between each positioning boss (71) and the positioning support (7). The two conductive sheets (2) are respectively engaged in the two positioning slots (72) and maintain a relative position with the positioning support (7).

2. The FPC temperature acquisition structure according to claim 1, characterized in that: The sealing structure is a sealing ring (6) disposed between the plug interface (41) and the plug portion (11). The outer wall of the sealing ring (6) is provided with at least one ring of contact protrusions, and the sealing ring (6) is nested on the plug portion (11); or, the sealing ring (6) is embedded in the inner wall of the plug interface (41) around the plug interface (41).

3. The FPC temperature acquisition structure according to claim 1, characterized in that: The positioning support (7) and the temperature collection shell (1) are fixedly connected or integrally formed.

4. The FPC temperature acquisition structure according to claim 1, characterized in that: The positioning support (7) includes a support base plate (73) and a support boss (74) connected to one end of the support base plate (73), as well as two positioning bosses (71) respectively formed on the support base plate (73) and the support boss (74). The support boss (74) is set higher than the support base plate (73). The support base plate (73) is provided with at least one limiting protrusion (75) extending along its length direction and spaced between the two conductive sheets (2).

5. The FPC temperature acquisition structure according to claim 4, characterized in that: The conductive sheet (2) includes a positioning part (21) inserted into the positioning groove (72) formed by the positioning support (7) and the two sets of positioning bosses (71), and a contact part (22) extending from the positioning part (21) and connected to the plug part (11). A limiting wall is formed in the positioning groove (72) between the positioning boss (71) and the support boss (74). A bent part (23) is formed between the contact part (22) and the positioning part (21) to cooperate with the limiting wall. A contact protrusion that cooperates with the clamping part (51) is integrally stamped on the contact part (22).

6. The FPC temperature acquisition structure according to claim 5, characterized in that: The temperature sensing housing (1) has a cavity formed inside to accommodate the positioning support (7) and two conductive sheets (2). The other ends of the two conductive sheets (2) extend into the mounting groove (12). The temperature probe (3) is an NTC element attached to the other end of the two conductive sheets.

7. The FPC temperature acquisition structure according to claim 1, characterized in that: The plug part (11) includes a plugging protrusion (111) formed at one end of the temperature sensing housing (1) and two plug rod structures disposed on one side of the plugging protrusion (111). A sealing ring (6) is fitted on the plugging protrusion (111). One end of each of the two conductive pieces (2) is inserted into the two plug rod structures. The plug rod structures have contact grooves (114) that expose the conductive pieces (2). The plug interface (41) has two plug holes (42) formed at intervals to cooperate with the two plug rod structures. The plug holes (42) accommodate the clamping part (51) of the terminal connector (5). The terminal connector (5) is inserted into the contact groove (114) through the clamping part (51) to form a plug-in cooperation with the conductive piece (2).

8. The FPC temperature acquisition structure according to claim 7, characterized in that: The insertion rod structure includes two parallel and opposite guide rods (112) and a contact groove (114) formed between the two guide rods (112). Two limiting slots (113) are provided on the opposite side walls of the two guide rods (112), so that the two sides of the contact portion of the conductive sheet (2) are respectively inserted into the two limiting slots (113).

9. An FPC temperature acquisition structure according to any one of claims 1-8, characterized in that: The clamping part (51) includes a lower biting protrusion (511) formed by bending one end of the terminal connector (5), and two upper biting protrusions (512) formed by bending and extending on both sides of the terminal connector (5) and higher than the lower biting protrusion (511). The two upper biting protrusions (512) are respectively located above the two sides of the lower biting protrusion (511), and a biting structure for inserting the conductive sheet (2) is formed between the lower biting protrusion (511) and the two upper biting protrusions (512). The lower biting protrusion (511) and the two upper biting protrusions (512) respectively abut against the two sides of the conductive sheet (2).

10. The FPC temperature acquisition structure according to claim 9, characterized in that: The connecting part (52) includes a connecting piece (521) extending to one side of the aluminum-based FPC (9). The connecting piece (521) is pressed and fixed to the aluminum-based FPC (9) by a tooth structure and contacts the connection circuit on the aluminum-based FPC (9). The tooth structure includes a plurality of pressing teeth (522) arranged alternately on both sides of the connecting piece (521). The plurality of pressing teeth (522) are pressed onto the same connection circuit of the aluminum-based FPC after piercing the aluminum-based FPC.

11. The FPC temperature acquisition structure according to claim 10, characterized in that: A locking structure is provided between the temperature sampling housing (1) and the bridge (4) to keep their relative positions fixed. The locking structure includes a metal frame (8) covering the outside of the bridge (4), a plurality of elastic buckles (81) provided on the port sidewall of the metal frame (8), and a plurality of buckle protrusions (13) correspondingly provided at one end of the temperature sampling housing (1) and forming a snap-fit ​​with the plurality of elastic buckles (81).

Images