Connector and battery
By introducing a guide body and extension tube into the joint, the joint length mismatch problem caused by cell expansion is solved, and adaptive adjustment of joint length is achieved, reducing the risk of accidents and improving assembly accuracy and sealing.
Patent Information
- Application Number
- CN202422050579.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The volume expansion of the battery cell during operation causes the joint length to mismatch, causing installation accidents.
A joint is designed including a guide body and an extension tube that guides the extension tube to increase the joint length as the battery cell expands to adapt to the distance variation between adjacent cooling devices.
Through the coordination of the guide body and the extension tube, the joint can adapt to the increase in distance caused by the expansion of the battery cell, reduce the chance of safety accidents, and improve assembly accuracy and sealing performance.
Smart Images
Figure CN223076497U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of batteries, and particularly relates to a connector and a battery. Background Art
[0002] During normal operation of the battery cell, a liquid cooling system is usually required for cooling to ensure that the battery cell operates at a normal working temperature. The cooling system includes multiple cooling devices, and adjacent cooling devices are usually connected by a connector. In the related art, when the temperature of the battery cell rises, the volume of the battery cell expands, which will drive an increase in the distance between adjacent cooling devices. However, the length of the connector is fixed, which easily leads to a mismatch in the length dimension of the connector, thus causing an installation accident. Summary of the Utility Model
[0003] To solve the above technical problems, an embodiment of this application provides a connector and a battery, which can increase the overall length of the connector during the volume expansion of the battery cell to adapt to the increased distance between adjacent cooling devices.
[0004] In a first aspect, a connector is provided, including:
[0005] A connector body, on the outer surface of which a guiding body is convexly provided;
[0006] An extension tube sleeved on the connector body, and the extension tube is matched with the guiding body;
[0007] Wherein, the guiding body is used to guide the extension tube to move away from the connector body under the action of an external force, so as to increase the overall length of the connector.
[0008] According to the first aspect of this application, the guiding body includes a plurality of guiding fins, the plurality of guiding fins are distributed along the length direction of the connector body, and the plurality of guiding fins are inclined towards the direction close to the target end wall relative to the axis of the connector body;
[0009] Wherein, the target end wall represents the end wall of the connector body extending into the extension tube.
[0010] According to the first aspect of this application, the inclination angles of the plurality of guiding fins are the same.
[0011] According to the first aspect of this application, for the same guiding fin, along the inclination direction of the guiding fin, the diameter of the guiding fin gradually increases, and the maximum diameter of the guiding fin is greater than the maximum diameter of the extension tube.
[0012] According to the first aspect of the present application, a first limiting protrusion is further provided on the outer surface of the joint body, and the first limiting protrusion is provided between the target end wall and the guiding body; wherein, the target end wall represents the end wall of the joint body extending into the extension tube.
[0013] A second limiting protrusion is provided on the inner surface of the extension tube, and the second limiting protrusion is used to abut against the first limiting protrusion to prevent the extension tube from detaching from the joint body.
[0014] According to the first aspect of the present application, the joint further includes:
[0015] A washer, sleeved on the joint body, the washer is provided between the first limiting protrusion and the guiding body, and the side wall of the washer abuts against the side wall of the first limiting protrusion.
[0016] According to the first aspect of the present application, a groove is provided on the joint body, and the groove is provided between the first limiting protrusion and the target end wall;
[0017] The joint further includes:
[0018] A sealing ring, sleeved on the joint body, and a part of the sealing ring is embedded in the groove.
[0019] According to the first aspect of the present application, the groove includes a first abutting side wall and a second abutting side wall arranged opposite to each other, both the first abutting side wall and the second abutting side wall are planar structures, and chamfers are provided at the edges of both the first abutting side wall and the second abutting side wall;
[0020] The sealing ring includes a first transition side wall and a second transition side wall arranged opposite to each other, both the first transition side wall and the second transition side wall are planar structures, and the first transition side wall and the second transition side wall respectively abut against the first abutting side wall and the second abutting side wall.
[0021] According to the first aspect of the present application, the joint further includes:
[0022] A flange, sleeved on the outer wall of the extension tube.
[0023] In a second aspect, a battery is further provided, including:
[0024] A battery cell;
[0025] A plurality of cooling devices for cooling the battery cell;
[0026] The joint as described in the previous embodiment, at least two adjacent cooling devices are connected by the joint.
[0027] In the joint and battery provided by the embodiments of the present application, under the condition that the volume of the battery cell expands, driving the distance between two adjacent cooling devices to increase, the extension tube is guided by the guiding body to move away from the joint body, so that the overall length of the joint increases to adapt to the increased distance between two adjacent cooling devices, reducing the probability of safety accidents. Description of the Drawings
[0028] By describing the embodiments of the present application in more detail in combination with the drawings, the above and other objects, features and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application, and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.
[0029] Figure 1 Schematic structural diagram of a joint provided by an exemplary embodiment of the present application.
[0030] Figure 2 Schematic structural diagram of a joint body provided by an exemplary embodiment of the present application.
[0031] Figure 3 Schematic structural diagram of an extension tube provided by an exemplary embodiment of the present application.
[0032] Figure 4 Schematic structural diagram of a joint provided by an exemplary embodiment of the present application in the first state.
[0033] Figure 5 Schematic structural diagram of a joint provided by an exemplary embodiment of the present application in the second state.
[0034] Figure 6 Schematic structural diagram of a joint body provided by an exemplary embodiment of the present application after being separated from the sealing ring.
[0035] Reference numerals: 100 - joint; 110 - joint body; 111 - guiding body; 1111 - guiding fin; 112 - target end wall; 113 - first limiting protrusion; 114 - groove; 1141 - first abutting side wall; 1142 - second abutting side wall; 1143 - chamfer; 120 - extension tube; 121 - second limiting protrusion; 130 - washer; 140 - sealing ring; 141 - first transition side wall; 142 - second transition side wall; 150 - flange. Detailed Description of the Embodiments
[0036] Next, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein.
[0037] An embodiment of the present application provides a battery, which includes a battery cell, a plurality of cooling devices, and a joint. The plurality of cooling devices cool the battery cell to ensure that the operating temperature of the battery cell is within the normal range. At least two adjacent cooling devices are connected by the joint, and the joint can be used to transfer a cooling medium between two adjacent cooling devices.
[0038] In practical applications, when the temperature of the battery cell rises, the volume of the battery cell expands, which will drive the distance between two adjacent cooling devices to increase. Since the overall length of the joint in the related art is fixed, it is easy to cause the length dimension of the joint not to match the distance between two adjacent cooling devices, thereby triggering a safety accident. For this reason, the joint provided in the embodiment of the present application can increase its overall length while the distance between two adjacent cooling devices increases, so as to adapt to the increased distance between two adjacent cooling devices. The joint will be introduced in detail below.
[0039] Figure 1 FIG. is a schematic structural diagram of a joint provided for an exemplary embodiment of the present application. As Figure 1 shown, the joint 100 provided in the embodiment of the present application may include a joint body 110 and an extension tube 120. A guide body 111 is convexly provided on the outer surface of the joint body 110, and the extension tube 120 is sleeved on the joint body 110, and the extension tube 120 can cooperate with the guide body 111.
[0040] It should be noted that when the extension tube 120 is subjected to an external force, the guide body 111 can guide the extension tube 120 to move away from the joint body 110 ( Figure 1 the direction indicated by the arrow A in ), so that the overlapping length between the extension tube 120 and the guide body 111 is shortened, and the overall length of the joint 100 increases.
[0041] Specifically, in practical applications, when the volume of the battery cell expands, it drives the distance between two adjacent cooling devices to increase. During this process, the extension tube 120 will be subjected to the pulling force of the cooling device. In this way, the guide body 111 can guide the extension tube 120 to move away from the joint body 110, and the overall length of the joint 100 increases to adapt to the increased distance between two adjacent cooling devices and reduce the probability of a safety accident.
[0042] It should be noted that during the battery production process, due to production process problems, the actual distance between two adjacent cooling devices after assembly may be greater than the predetermined distance. In such a case, the extension tube 120 can also be manually pulled. In this way, the guiding body 111 can guide the extension tube 120 to move away from the joint body 110, increasing the overall length of the joint 100 to adapt to the actual distance between two adjacent assembled cooling devices and improving the assembly accuracy.
[0043] As Figure 1 shown, the joint 100 may further include a flange 150 sleeved on the outer wall of the extension tube 120. In practical applications, the flange 150 can be used to connect the cooling device to relatively fix the joint 100 and the cooling device.
[0044] Figure 2 Schematic diagram of the structure of the joint body provided by an exemplary embodiment of the present application. As Figure 2 shown, the guiding body 111 may include a plurality of guiding fins 1111 distributed along the length direction of the joint body 110, and the plurality of guiding fins 1111 are inclined towards the target end wall 112 (the end wall where the joint body 110 extends into the extension tube 120) relative to the axis of the joint body 110.
[0045] It should be understood that during the process of the extension tube 120 gradually moving away from the joint body 110, the plurality of guiding fins 1111 can successively guide the extension tube 120. In this way, it can be ensured that the guiding body 111 can always guide the extension tube 120 during the movement of the extension tube 120, avoiding the situation of deflection or jamming of the extension tube 120 during the movement.
[0046] In one embodiment, the guiding body 111 may also include an integral inclined guiding surface, and the inclined guiding surface is inclined towards the target end wall 112 relative to the axis of the joint body 110.
[0047] As Figure 2 shown, the inclination angles of the plurality of guiding fins 1111 are the same. In this way, the guiding directions of the plurality of guiding fins 1111 for the extension tube 120 are the same, which can avoid guiding the extension tube 120 to different directions (such as mutually inclined directions) by different guiding fins 1111.
[0048] As Figure 2As shown, for the same guiding fin 1111, along the inclined direction of the guiding fin 1111, the diameter of the guiding fin 1111 gradually increases, and the maximum diameter of the guiding fin 1111 is greater than the inner diameter of the extension tube 120. It should be understood that when the guiding fin 1111 is located inside the extension tube 120, under the pressing action of the inner wall of the extension tube 120, a part of the guiding fin 1111 is compressed; during the movement of the extension tube 120, the guiding fin 1111 plays the aforementioned guiding role for the extension tube 120; when the guiding fin 1111 is located outside the extension tube 120, the pressure pressing the guiding fin 1111 is removed, and the guiding fin 1111 will undergo elastic reset. At this time, the maximum diameter of the guiding fin 1111 is greater than the inner diameter of the extension tube 120. In this way, it is possible to prevent the extension tube 120 from moving in the direction opposite to the current moving direction, and ensure that the overall length of the joint 100 is adapted to the distance between two adjacent cooling devices.
[0049] Figure 3 is a schematic structural view of an extension tube provided by an exemplary embodiment of the present application. As Figure 2 and Figure 3 shown, a first limiting protrusion 113 is further provided on the outer surface of the joint body 110. The first limiting protrusion 113 is provided between the target end wall 112 (the end wall where the joint body 110 extends into the extension tube 120) and the guiding body 111, and a second limiting protrusion 121 is provided on the inner surface of the extension tube 120.
[0050] It should be noted that as the extension tube 120 gradually moves away from the joint body 110, multiple guiding fins 1111 will gradually move outside the extension tube 120. When all the guiding fins 1111 are completely outside the extension tube 120, by the mutual abutment of the first limiting protrusion 113 and the second limiting protrusion 121, it is possible to limit the extension tube 120 from continuing to move away from the joint body 110, thereby preventing the extension tube 120 from detaching from the joint body 110, and ensuring that the joint 100 can still transfer the cooling medium between two adjacent cooling devices.
[0051] Figure 4 is a schematic structural view of a joint provided by an exemplary embodiment of the present application in a first state. Figure 5 A schematic structural view of a joint provided by an exemplary embodiment of the present application in a second state. As Figure 4 and Figure 5 shown, as Figure 4 shown, the state shown is the state where the length of the joint 100 is the shortest. In this state, the overall size of the joint 100 is small and the assembly is more convenient; when the distance between two adjacent cooling devices changes, the extension tube 120 moves away from the joint body 110, and the length of the joint 100 gradually increases. The longest state of the joint 100 is Figure 5The state shown, in which multiple guiding fins 1111 are completely outside the extension tube 120, the guiding fins 1111 abut against the end wall of the extension tube 120 to prevent the extension tube 120 from moving towards the joint body 110, and the first limiting protrusion 113 and the second limiting protrusion 121 abut against each other, which can limit the extension tube 120 from continuing to move away from the joint body 110, thereby restricting the extension tube 120 from detaching from the joint body 110.
[0052] It should be noted that when it is necessary to switch the joint from Figure 5 the state shown to Figure 4 the state shown, only a force opposite to the previous one (a force opposite to the pulling force that pulls the extension tube 120 to move away from the joint body 110) needs to be applied to the extension tube 120, so that the extension tube 120 moves towards the joint body 110, the guiding fins 1111 are gradually compressed and enter the extension tube 120, and the overall length of the joint 100 gradually shortens.
[0053] As Figure 2 shown, the joint 100 may further include a washer 130. The washer 130 is sleeved on the joint body 110, the washer 130 is disposed between the first limiting protrusion 113 and the guiding body 111, and the side wall of the washer 130 abuts against the side wall of the first limiting protrusion 113.
[0054] Specifically, in actual application, when the extension tube 120 moves to Figure 5 the state shown, the washer 130 abuts between the first limiting protrusion 113 and the second limiting protrusion 121. The washer 130 can play a buffering role to prevent the first limiting protrusion 113 and the second limiting protrusion 121 from colliding with each other and being damaged, and at the same time, it can also prevent the first limiting protrusion 113 and the second limiting protrusion 121 from wearing due to long-term contact.
[0055] As Figure 2 shown, the joint 100 may further include a sealing ring 140. The sealing ring 140 is sleeved on the joint body 110. In the state where the extension tube 120 is sleeved on the joint body 110, the outer wall of the sealing ring 140 abuts against the inner wall of the extension tube 120. In this way, the sealing ring 140 can improve the sealing performance between the extension tube 120 and the joint body 110 and avoid the leakage of the cooling medium inside the joint 100.
[0056] As Figure 2As shown, the joint body 110 is further provided with a groove 114, which is arranged between the first limiting protrusion 113 and the target end wall 112 (the end wall of the joint body 110 extending into the extension pipe 120). A part of the sealing ring 140 is embedded in the groove 114. In this way, the groove 114 can limit the sealing ring 140, prevent the sealing ring 140 from sliding relative to the joint body 110, and is conducive to further improving the sealing performance between the joint body 110 and the extension pipe 120.
[0057] Figure 6 It is a schematic structural diagram of the joint body and the sealing ring separated in an exemplary embodiment of the present application. As Figure 6 shown, the groove 114 includes a first abutting side wall 1141 and a second abutting side wall 1142 which are oppositely arranged. Both the first abutting side wall 1141 and the second abutting side wall 1142 are planar structures, and chamfers 1143 are provided at the edges of the first abutting side wall 1141 and the second abutting side wall 1142; correspondingly, the sealing ring 140 includes a first transition side wall 141 and a second transition side wall 142 which are oppositely arranged. Both the first transition side wall 141 and the second transition side wall 142 are planar structures.
[0058] It should be understood that since the first transition side wall 141, the second transition side wall 142, the first abutting side wall 1141, and the second abutting side wall 1142 are all planar structures, after the sealing ring 140 is snapped into the groove 114, the first transition side wall 141 abuts against the first abutting side wall 1141, and the second transition side wall 142 abuts against the second abutting side wall 1142. In this way, the abutting of plane against plane can prevent the sealing ring 140 from disengaging from the groove 114 after being squeezed (when the extension pipe 120 moves relative to the joint body 110, the sealing ring 140 will be squeezed), and ensure good sealing performance between the extension pipe 120 and the joint body 110 during the movement of the extension pipe 120.
[0059] It should be noted that the chamfers 1143 at the edges of the first abutting side wall 1141 and the second abutting side wall 1142 can guide the sealing ring 140 to be snapped into the groove 114, facilitating the quick assembly of the sealing ring 140.
[0060] The basic principle of the present application has been described above in combination with specific embodiments. However, it should be pointed out that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations. It cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above-disclosed specific details are only for the purpose of illustration and easy understanding, rather than limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.
[0061] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "comprising," "including," "having," etc. are open-ended terms that mean "including but not limited to" and can be used interchangeably with each other. The word "or" and "and" used herein refer to the phrase "and / or" and can be used interchangeably with it, unless the context clearly indicates otherwise. The phrase "such as" used herein refers to the phrase "such as but not limited to" and can be used interchangeably with it.
[0062] It should also be noted that in the devices, equipment, and methods of this application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of this application.
[0063] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.
[0064] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.
Claims
1. A connector, characterized in that, Comprising: A joint body (110), on the outer surface of which a guiding body (111) protrudes; An extension pipe (120) sleeved on the joint body (110), and the extension pipe (120) cooperates with the guiding body (111); Wherein, the guiding body (111) is used to guide the extension pipe (120) to move away from the joint body (110) when the extension pipe (120) is subjected to an external force, so as to increase the overall length of the joint.
2. The joint according to claim 1, characterized in that, The guiding body (111) includes a plurality of guiding fins (1111), the plurality of guiding fins (1111) are distributed along the length direction of the joint body (110), and the plurality of guiding fins (1111) are inclined towards the direction close to the target end wall (112) relative to the axis of the joint body (110); Wherein, the target end wall (112) represents one end wall of the joint body (110) extending into the extension pipe (120).
3. The joint according to claim 2, characterized in that, The inclination angles of the plurality of guiding fins (1111) are the same.
4. The joint according to claim 2, characterized in that, For the same guiding fin (1111), along the inclination direction of the guiding fin (1111), the diameter of the guiding fin (1111) gradually increases, and the maximum diameter of the guiding fin (1111) is greater than the maximum diameter of the extension pipe (120).
5. The joint according to claim 1, characterized in that, A first limiting protrusion (113) is further provided on the outer surface of the joint body (110), and the first limiting protrusion (113) is arranged between the target end wall (112) and the guiding body (111); wherein, the target end wall (112) represents one end wall of the joint body (110) extending into the extension pipe (120); A second limiting protrusion (121) is provided on the inner surface of the extension pipe (120), and the second limiting protrusion (121) is used to abut against the first limiting protrusion (113) to limit the extension pipe (120) from detaching from the joint body (110).
6. The joint according to claim 5, wherein The joint further includes: A washer (130) sleeved on the joint body (110), the washer (130) is arranged between the first limiting protrusion (113) and the guiding body (111), and the side wall of the washer (130) abuts against the side wall of the first limiting protrusion (113).
7. The joint according to claim 5, characterized in that, The joint body (110) is provided with a groove (114), and the groove (114) is arranged between the first limiting protrusion (113) and the target end wall (112); The joint further includes: A sealing ring (140) sleeved on the joint body (110), and a part of the sealing ring (140) is embedded in the groove (114).
8. The joint according to claim 7, characterized in that, The groove (114) includes a first abutting side wall (1141) and a second abutting side wall (1142) arranged oppositely, both the first abutting side wall (1141) and the second abutting side wall (1142) are plane structures, and chamfers (1143) are provided at the edges of the first abutting side wall (1141) and the second abutting side wall (1142); The sealing ring (140) includes a first transition side wall (141) and a second transition side wall (142) which are oppositely arranged. Both the first transition side wall (141) and the second transition side wall (142) are planar structures, and the first transition side wall (141) and the second transition side wall (142) respectively abut against the first abutting side wall (1141) and the second abutting side wall (1142).
9. The joint according to any one of claims 1 to 8, characterized in that, The joint further includes: A flange (150) sleeved on the outer wall of the extension pipe (120).
10. A battery, characterized in that, Comprising: An electric core; A plurality of cooling devices for cooling the electric core; For the joint according to any one of claims 1 to 9, at least two adjacent ones of the cooling devices are connected by the joint.