Connection structure, battery and electrical equipment

Abstract

This application belongs to the technical field of batteries, and provides a connection structure, a battery, and an electrical device. The connection structure includes a male member, a female member, a marking member, and a locking member, the female member includes a first engaging portion and a through hole for inserting the male member, the marking member includes a second engaging portion for engaging with the first engaging portion, and the locking member is attached to the female member and configured to move from the first position to the second position when the insertion depth of the male member reaches a predetermined value to lock the male member and drive the second engaging portion to separate from the first engaging portion. According to the technical solution of this application, the male member and the female member can be avoided from being assembled incorrectly, and the accuracy of assembly can be improved.

Description

[Technical field]

[0001] The present application relates to the technical field of batteries, and specifically to connection structures, batteries and electrical equipment. [Background technology]

[0002] In the prior art, when assembling a male member and a female member, whether the male member and the female member are assembled correctly is generally confirmed by a user's experience or visual inspection. Since such a judgment method is prone to errors in judgment, it is common for the male member and the female member to be assembled incorrectly. Summary of the Invention

[0003] The embodiments of the present application aim to provide a connection structure, a battery, and an electrical equipment that can increase the accuracy of connector assembly and avoid incorrect assembly of the male and female members of the connection structure.

[0004] In a first aspect, an embodiment of the present application provides a quick connector, the quick connector comprising a male member, a female member, an indicia member, and a locking member, the female member including a first engagement portion and a through hole for inserting the male member, the indicia member including a second engagement portion for engaging with the first engagement portion, the locking member being attached to the female member and configured to move from a first position to a second position when an insertion depth of the male member reaches a predetermined value, thereby locking the male member, and to drive the second engagement portion to separate from the first engagement portion.

[0005] In the technical solution of the embodiment of the present application, before the male member is inserted into the through hole of the female member, both the mark member and the lock member are pre-attached to the female member. Specifically, the mark member is annularly mounted on a part of the outer circumference of the female member, the second engaging part of the mark member engages with the first engaging part on the outer circumference of the female member, the lock member and the mark member are located on the same side of the female member, the lock member is also annularly mounted on a part of the outer circumference of the female member, and the lock member movably engages with the female member through the mark member, at this time, the position of the lock member is the first position. When the male member and the female member are assembled, that is, the male member is inserted into the through hole of the female member, and after the insertion depth of the male member reaches a predetermined value, the lock member moves from the first position in the direction approaching the female member to a position where it cannot move, and the lock member and the female member are locked, and at the same time, the male member is locked in the through hole of the female member by the lock member. While the locking member moves from the first position toward the female member, the position of the locking member that abuts against the mark member changes, and the outer diameter of the part of the locking member that abuts against the mark member gradually increases, so that the outer wall of the locking member presses the inner wall of the mark member and applies a force to the inner wall of the mark member in a direction away from the female member, so that the second engaging part of the mark member and the first engaging part of the female member are separated. According to the technical solution of the embodiment of the present application, when the mark member and the locking member are installed and the male member and the female member are correctly assembled, the mark member is automatically separated from the female member, and the locking member cannot move relative to the female member, and if the user can observe these two objective events, he can confirm that the male member and the female member are correctly assembled, thus avoiding the male member and the female member being incorrectly assembled, and improving the accuracy rate of assembly.

[0006] In some embodiments, the first engagement portion is configured as a first engagement groove provided on the outer periphery of the female member, and the second engagement portion is configured as a first engagement hook provided on the mark member. An inner wall surface of the first engagement groove on the outer periphery of the female member is aligned with an outer wall surface of the first engagement hook of the mark member, and the mark member and the female member are connected by a method in which the first engagement hook engages in the first engagement groove. In this way, the structure is simple, the mark member can be easily separated from the female member by pressing it with the lock member, and the efficiency of assembly of the female member and the male member can be improved on the premise that the correct assembly of the female member and the male member can be guaranteed.

[0007] In some embodiments, there are two first engagement grooves, the two first engagement grooves are spaced apart on the outer periphery of the female member, there are two first engagement hooks, the two first engagement hooks are for engaging with the two first engagement grooves, respectively. Two sets of first engagement grooves and first engagement hooks configured to be engageable are provided, and the two sets of first engagement grooves and first engagement hooks are located at symmetrical ends of the outer periphery of the female member, respectively, thus ensuring the stability of the connection between the mark member and the female member.

[0008] In some embodiments, the locking member is provided with a second engagement groove, the indicia member is provided with a second engagement hook for engaging with the second engagement groove, and the locking member is configured to drive the second engagement hook to disengage from the second engagement groove when the locking member moves from the first position to the second position. The indicia member is engaged in the first engagement groove of the female member by the first engagement hook, so that the position of the indicia member relative to the female member is fixed. The indicia member is provided with the second engagement hook and the locking member is provided with the second engagement groove, so that when the locking member is located in the first position, the second engagement hook just engages in the second engagement groove of the locking member to connect the locking member and the indicia member. On the one hand, the position of the locking member can be determined, that is, when the second engaging hook of the marking member is exactly engaged in the second engaging groove of the locking member, the locking member is exactly located at the first position, and at this time, it can be ensured that the male member is smoothly inserted into the through-hole of the female member. On the other hand, when the locking member moves from the first position to the second position, the locking member presses the marking member, so that the marking member is separated from the female member and the locking member, which can be an objective reference condition for the user to confirm whether the female member and the male member are correctly assembled.

[0009] In some embodiments, there are two second engagement grooves, and the two second engagement grooves are provided on both sides of the locking member, and there are two second engagement hooks, and the two second engagement hooks are for engaging with the two second engagement grooves, respectively. Two sets of engageable second engagement grooves and second engagement hooks are provided, and the two sets of second engagement grooves and second engagement hooks are located on symmetrical ends of the indicia member or the locking member, respectively, which can ensure the stability of the connection between the indicia member and the locking member.

[0010] In some embodiments, an annular groove is provided on the outer circumferential surface of the male member, the locking member includes an engagement base and two connection arms provided below the engagement base, the two connection arms are provided below the engagement base at a distance from each other, two second engagement grooves are formed between the two connection arms and the engagement base, and the engagement base is configured to be engaged in the annular groove when the locking member is located at the second position. When the male member is inserted into the through hole of the female member and the annular groove and the engagement base of the locking member are located on the same plane, the insertion depth of the male member reaches a predetermined value, whereby the locking member moves from the first position to the second position and the inner wall surface of the engagement base of the locking member comes into contact with the outer wall surface of the annular groove of the male member. Since the inner diameter of the engaging base is equal to or smaller than the outer diameter of the annular groove of the male member, when the engaging base is engaged in the annular groove, the male member cannot move further downward along the through hole of the female member, and at this time the locking member is locked with the male member and also with the female member, thus locking the male member and the female member and completing the assembly of the male member and the female member.

[0011] In some embodiments, a third engagement groove is provided on the outer periphery of the female member, and a third engagement hook is further provided on the locking member, and the third engagement hook is configured to be engaged in the third engagement groove when the locking member is located at the first position. The third engagement groove is provided on the outer periphery of the female member, and the third engagement hook is provided correspondingly on the locking member, and when the third engagement hook of the locking member and the third engagement groove of the female member are engaged, the locking member is located exactly at the first position, thus allowing the position of the locking member to be determined, allowing the locking member to be quickly located at the first position during installation, and preventing the locking member from unintentionally falling off from the female member. And when the locking member is located at the first position, the engagement base of the locking member is located between the inner diameter and the outer diameter of the through hole of the female member, so that it is ensured that the male member is smoothly inserted into the through hole of the female member.

[0012] In some embodiments, the number of the third engagement grooves is two, the two third engagement grooves are spaced apart on the outer periphery of the female member, the number of the third engagement hooks is two, the two third engagement hooks are provided at the ends of the two connecting arms that are remote from the engagement base, two sets of the third engagement grooves and the third engagement hooks that are configured to be engageable are provided, and the two sets of the third engagement grooves and the third engagement hooks are located at symmetrical ends of the female member or the locking member, respectively, thereby ensuring the stability of the connection between the female member and the locking member.

[0013] In some embodiments, a groove is provided on the connecting arm on a side away from the through hole, and the groove abuts against the female member when the male member is inserted into the through hole. By providing the groove, when the male member and the female member are assembled, the groove abuts against a part of the outer periphery of the female member, increasing the contact area between the locking member and the female member, thereby ensuring the stability of the connection between the locking member and the female member.

[0014] In some embodiments, a position limiting groove is provided on the side of the locking member facing the through hole, and a position limiting block corresponding to the position limiting groove is provided on the edge of the through hole, and the position limiting block is configured to be engaged in the position limiting groove when the locking member is located at the second position. A position limiting block is provided on the outside of the edge of the through hole of the female member, and a position limiting groove is provided correspondingly on the locking member, so that when the locking member moves to the second position, i.e., when the female member and the male member are correctly assembled, the position limiting block is exactly engaged in the position limiting groove, thereby preventing the locking member from moving, and thus indicating to the user that the female member and the male member are correctly assembled, the configuration is simple and easy to operate.

[0015] In some embodiments, the indicia member is provided with a pull portion for a user to remove the indicia member from the locking member. By providing the pull portion, when the male member and the female member are assembled, the user can easily remove the indicia member from the locking member by the pull portion, and a handheld portion is provided for the user to remove the indicia member, making it easier for the user to operate.

[0016] In some embodiments, the indicia member has a mounting notch configured to receive a portion of the locking member, such that the locking member can be fitted around a portion of the outer circumference of the female member through the mounting notch and through the indicia member to connect with the female member.

[0017] In some embodiments, a positioning post is provided on the side of the indicia member facing the locking member, and a positioning hole is provided on the side of the locking member facing the indicia member, and the positioning post is adapted to be inserted into the positioning hole to connect the locking member and the indicia member.

[0018] In a second aspect, an embodiment of the present application provides a battery, the battery comprising the connection structure according to the above embodiment, the connection structure being for connecting a cooling pipe of a cooling system of the battery.

[0019] In a third aspect, an embodiment of the present application provides an electrical device, comprising a battery according to the above embodiment, the battery being for providing electrical energy.

[0020] The above description is the outline content of the technical solution of the present application, and in order to more clearly understand the technical means of the present application, one can refer to the content of the specification. In order to easily understand the above and other objectives, features and advantages of the present application, the following lists specific embodiments of the present application. [Brief description of the drawings]

[0021] In order to more clearly describe the technical solutions of the embodiments of the present application, the drawings used in the embodiments of the present application are briefly described below, in which it should be noted that the drawings described are only for illustrating some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without using inventive abilities.

[0022] [Figure 1] FIG. 1 is a schematic diagram of a vehicle according to some embodiments of the present application. [Diagram 2] FIG. 2 is a schematic diagram of an assembled connection structure according to some embodiments of the present application. [Diagram 3] FIG. 2 is a schematic exploded view of a connection structure according to an embodiment of the present application. [Figure 4] 1 is a schematic configuration diagram of a locking member according to an embodiment of the present application. [Diagram 5] FIG. 2 is a schematic diagram of an indicia member according to an embodiment of the present application. [Figure 6] FIG. 2 is a schematic diagram of a female member according to an embodiment of the present application. [Figure 7] FIG. 13 is a schematic diagram of another marking member according to an embodiment of the present application. [Figure 8] FIG. 1 is a schematic cross-sectional view of a lock member and a female member according to an embodiment of the present application when they are connected to each other. [Figure 9] FIG. 2 is a schematic cross-sectional view of the mark member and the female member according to the embodiment of the present application when they are connected to each other. [Figure 10] FIG. 2 is a schematic cross-sectional view of a lock member and a mark member according to an embodiment of the present application when they are connected to each other. [Figure 11] FIG. 2 is a schematic cross-sectional view of a connection structure according to an embodiment of the present application, viewed from a certain angle. [Figure 12] FIG. 4 is a schematic cross-sectional view of the connection structure according to the embodiment of the present application viewed from another angle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, the embodiments of the technical solution of the present application will be described in detail with reference to the drawings. The following embodiments are illustrative, and are only intended to more clearly explain the technical solution of the present application, and are not intended to limit the scope of protection of the present application.

[0024] Unless otherwise specified, all technical and scientific terms used herein have the meanings that are commonly understood by those skilled in the art. The terms used herein are only for describing specific examples and are not intended to limit the present application. The terms "include", "have" and any variations thereof in the description of the present application, claims and the above drawings mean inclusive and non-exclusive.

[0025] In the description of the embodiments of the present application, technical terms such as "first", "second", etc. are merely used to distinguish similar objects, and do not express or imply relative importance, or imply the number of technical features, and do not limit a specific order or ranking. In the description of the embodiments of the present application, unless otherwise specifically limited, "plurality" means two or more.

[0026] In this specification, the term "embodiment" means that a particular feature, configuration, or characteristic described using the embodiment is included in at least one embodiment of the present application. The use of this term in various parts of the specification does not necessarily refer to the same embodiment, nor is it an independent embodiment or an alternative embodiment that is mutually exclusive with other embodiments. It is understood by those skilled in the art that the embodiment described in this specification may be combined with other embodiments.

[0027] In the description of the embodiments of the present application, the term "and / or" is merely used to describe the relationship between related objects and represents three types of relationships, for example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the symbol " / " in this specification generally represents a relationship indicated by "or" between the related objects before and after it.

[0028] In describing the embodiments of the present application, the term "plurality" means two or more (including two); similarly, "multiple sets" means two or more sets (including two sets); and "multiple sheets" means two or more (including two sheets).

[0029] In describing the embodiments of the present application, directions or positional relationships expressed by technical terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial direction," "radial direction," "circumferential direction," etc., are based on the drawings and are merely intended to conveniently and simply describe the embodiments of the present application, and do not expressly or imply that the relevant devices or elements necessarily have a specific direction or are configured or operated in a specific direction, and therefore should not be understood as limiting the embodiments of the present application.

[0030] In the description of the embodiments of the present application, unless otherwise clearly defined or limited, technical terms such as "attached", "linked", "connected", and "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may also be a direct connection, an indirect connection via an intermediate object, or the interiors of two elements may communicate with each other or the two elements may interact with each other. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present application according to the specific situation.

[0031] At present, with the development of market conditions, the applications of power batteries are becoming more and more widespread. Power batteries are not only used in energy storage power systems such as hydroelectric power stations, thermal power stations, wind power stations, and solar power stations, but also in electric transportation such as electric bicycles, electric motorcycles, and electric cars, military equipment, aerospace, and other fields. With the continuous expansion of the application of power batteries, the market demand is also expanding.

[0032] It is necessary to connect the cooling pipes of the cooling system of the power battery with each other by a connecting structure so as to communicate with each other. Before using the connecting structure for the cooling pipes, it is necessary to first correctly assemble the female and male members of the connecting structure. When assembling the male and female members into the connecting structure, in order to check whether the male and female members are correctly assembled, the user generally judges by visual inspection or by the sound of the male and female members hitting each other during assembly. With such a judgment method, it is easy to make an error in judgment, so it is common for the male and female members to be assembled incorrectly. When the male and female members are not correctly assembled, it is difficult for the user to find out, so the incorrectly assembled connecting structure cannot function when used in the cooling pipes of the battery, which affects the service life of the battery. The inventors have noticed this.

[0033] In view of the above, in order to solve the problem that the male member and the female member are often assembled incorrectly, and that it is difficult for users to find that the male member and the female member are assembled incorrectly, the inventors have designed a connection structure through research. The connection structure includes a male member, a female member, a mark member, and a lock member. The female member is provided with a through hole, into which the male member is inserted to realize the assembly of the male member with the female member. Before the male member is inserted into the female member, both the mark member and the lock member are pre-attached to the female member, specifically, the mark member is ring-mounted on a part of the outer circumference of the female member and engaged with the female member, the lock member and the mark member are located on the same side of the female member, the lock member is also ring-mounted on a part of the outer circumference of the female member, and the lock member is movably engaged with the female member through the mark member, and the position of the lock member is a first position. When assembling the male member and the female member, i.e., inserting the male member into the through hole of the female member, and after the insertion depth of the male member reaches a predetermined value, the locking member moves from the first position toward the female member until it is locked with the female member, and when the locking member is locked with the female member, the locking member is located at the second position, and at the same time, the male member is locked in the through hole of the female member by the locking member. While the locking member moves from the first position to the second position, the position of the locking member that abuts against the mark member changes, and the outer diameter of the part of the locking member that abuts against the mark member gradually becomes larger, whereby the outer wall of the locking member presses against the inner wall of the mark member and applies a force to the inner wall of the mark member in a direction away from the female member, and as a result, the mark member is separated from the female member. According to the technical solution of the embodiments of the present application, a marking member and a locking member are installed, and when the locking member moves from the first position to the second position, the marking member is automatically separated from the female member, and the locking member cannot move relative to the female member. If the user can observe these two objective phenomena, he or she can confirm that the male member and the female member are correctly assembled, and thus the male member and the female member can be avoided from being incorrectly assembled, and the accuracy rate of assembly can be improved.

[0034] The connection structure 400 and the battery 100 according to the embodiment of the present application can be used in, but are not limited to, electrical equipment such as vehicles, ships, and aircraft. The connection structure 400 and the battery 100 according to the present application can be used to configure a power supply system for the electrical equipment. In this way, the male and female members of the connection structure 400 in the cooling system of the battery 100 can be avoided from being assembled incorrectly, the accuracy of assembly can be improved, and the normal use of the cooling pipe of the battery cooling system can be ensured.

[0035] The embodiment of the present application provides an electric device that uses a battery as a power source. The electric device includes, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, an electric car, an electric car, a boat, an aircraft, etc. The electric toy includes a stationary or mobile one, for example, a game machine, an electric car toy, an electric boat toy, and an electric airplane toy, etc. The aircraft includes an airplane, a rocket, a space shuttle, and a spaceship, etc.

[0036] Referring to FIG. 1, FIG. 1 is a schematic configuration diagram of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 includes a fuel vehicle, a natural gas vehicle, or a new energy vehicle, and the new energy vehicle includes an electric vehicle, a hybrid vehicle, or a range extender electric vehicle, etc. A battery 100 is disposed inside the vehicle 1000, and the cooling pipes of the cooling system of the battery 100 are connected by a connection structure 400 according to an embodiment of the present application, and the battery 100 is disposed at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000, for example, as a power source for driving the vehicle 1000. The vehicle 1000 further includes a control device 200 and an engine 300, and the control device 200 controls the power supply from the battery 100 to the engine 300, for example, used to supply work electricity during starting, navigation, and running of the vehicle 1000.

[0037] 2, 3 and 12, FIG. 2 is a schematic diagram of a connection structure 400 according to some embodiments of the present application in an assembled state, FIG. 3 is a schematic exploded diagram of the connection structure 400 according to the embodiments of the present application, and FIG. 12 is a schematic cross-sectional view of the connection structure according to the embodiments of the present application from another angle. In some embodiments, the connection structure 400 includes a male member 1, a female member 2, a mark member 3, and a lock member 4. The female member 2 includes a first engagement portion and a through hole 202 for inserting the male member 1. The mark member 3 includes a second engagement portion for engaging with the first engagement portion. The lock member 4 is attached to the female member 2, and is configured to move from the first position to the second position when the insertion depth of the male member 1 reaches a predetermined value, thereby locking the male member 1, and to drive the second engagement portion to separate from the first engagement portion.

[0038] The male member 1 is a connection member having a through hole in the middle, and the female member 2 is a connection member having a through hole 202 inside that is aligned with the male member 1. The male member 1 is fitted into the through hole 202 of the female member 2 and fixed to the female member 2. Specifically, after the male member 1 and the female member 2 are correctly assembled by cooperation of the marking member 3 and the locking member 4, they are used in the cooling pipe of the cooling system of the battery 100 to communicate the cooling pipe. The first position is a position where the male member 1 can be smoothly inserted into the through hole 202 of the female member 2 when the locking member 4 and the female member 2 are connected, and the second position is a position where the male member 1 cannot move further down along the through hole 202 of the female member 2 when the locking member 4 and the female member 2 are locked.

[0039] Before the male member 1 is inserted into the through-hole 202 of the female member 2, the mark member 3 and the locking member 4 are both attached in advance to the female member 2. Specifically, the mark member 3 is annularly attached to a part of the outer periphery of the female member 2, the second engagement portion of the mark member 3 engages with the first engagement portion on the outer periphery of the female member 2, the locking member 4 and the mark member 3 are located on the same side of the female member 2, the locking member 4 is also annularly attached to a part of the outer periphery of the female member 2, and the locking member 4 is movably engaged with the female member 2 through the mark member 3, and the position where the locking member 4 is located at this time is the first position. When assembling the male member 1 and the female member 2, that is, when the male member 1 is inserted into the through hole 202 of the female member 2 and the insertion depth of the male member 1 reaches a predetermined value, the locking member 4 moves from the first position in a direction approaching the female member 2 to a position where it cannot move, the locking member 4 and the female member 2 are locked, and at the same time, the male member 1 is locked in the through hole 202 of the female member 2 by the locking member 4. While the locking member 4 moves from the first position in a direction approaching the female member 2, the position of the locking member 4 that abuts against the mark member 3 changes, and the outer diameter of the part of the locking member 4 that abuts against the mark member 3 gradually becomes larger, whereby the outer wall of the locking member 4 presses the inner wall of the mark member 3 and applies a force to the inner wall of the mark member 3 in a direction away from the female member 2, and as a result, the second engagement portion of the mark member 3 and the first engagement portion of the female member 2 are separated. According to the technical solution of the embodiment of the present application, the mark member 3 and the lock member 4 are installed, and when the male member 1 and the female member 2 are correctly assembled, the mark member 3 is automatically separated from the female member 2, and the lock member 4 cannot move relative to the female member 2. If the user can observe these two objective phenomena, he can confirm that the male member 1 and the female member 2 are correctly assembled, and therefore, the male member 1 and the female member 2 can be avoided from being incorrectly assembled, and the accuracy rate of assembly can be improved.

[0040] 3, 5, 6 and 9, Fig. 5 is a schematic diagram of the mark member 3 according to an embodiment of the present application, Fig. 6 is a schematic diagram of the female member 2 according to an embodiment of the present application, and Fig. 9 is a schematic cross-sectional diagram of the mark member and the female member according to an embodiment of the present application when they are connected. In some embodiments of the present application, the first engagement portion is configured as a first engagement groove 201 provided on the outer periphery of the female member 2, and the second engagement portion is configured as a first engagement hook 301 provided on the mark member 3.

[0041] The first engagement groove 201 is a recessed groove provided on the outer periphery of the female member 2, recessed in a direction approaching the axis of the female member 2. The first engagement groove 201 may have any shape, such as a rectangle, a circle, or a trapezoid. Correspondingly, the first engagement hook 301 is provided on the mark member 3, and the shape of the first engagement hook 301 is formed to match the inner wall surface of the first engagement groove. The first engagement hook 301 is a block-shaped one that can be fitted into the first engagement groove 201, and when fitted into the first engagement groove 201, the first engagement hook 301 can move only along a direction parallel to the radial direction of the female member 2.

[0042] The inner wall surface of the first engagement groove 201 on the outer periphery of the female member 2 is aligned with the outer wall surface of the first engagement hook 301 of the mark member 3, and the mark member 3 and the female member 2 are connected by a method in which the first engagement hook 301 engages into the first engagement groove 201. In this way, the configuration is simple, and it is easier to separate the mark member 3 from the female member 2 by pressing the mark member 3 with the lock member 4, and the efficiency of assembly of the female member 2 and the male member 1 can be improved on the premise that correct assembly of the female member 2 and the male member 1 can be guaranteed.

[0043] As shown in Figures 5 and 6, in some embodiments of the present application, there are two first engagement grooves 201, the two first engagement grooves 201 being spaced apart on the outer periphery of the female member 2, and there are two first engagement hooks 301, the two first engagement hooks 301 being for engaging with the two first engagement grooves 201, respectively.

[0044] Two sets of first engagement grooves 201 and first engagement hooks 301 that are configured to be engageable are provided, and the two sets of first engagement grooves 201 and first engagement hooks 301 are respectively positioned at symmetrical ends of the outer periphery of the female member 2, thereby ensuring the stability of the connection between the mark member 3 and the female member 2.

[0045] 4, which is a schematic diagram of the locking member 4 according to the embodiments of the present application. In some embodiments of the present application, the locking member 4 is provided with a second engagement groove 401, the indicia member 3 is provided with a second engagement hook 302, the second engagement hook 302 is for engaging with the second engagement groove 401, and the locking member 4 is configured to drive the second engagement hook 302 to separate from the second engagement groove 401 when the locking member 4 moves from the first position to the second position.

[0046] The second engagement groove 401 is a structure formed by connecting an engagement base 402 of the locking member 4 and one connection arm 403. The second engagement hook 302 is a protruding block. The outer periphery of the second engagement hook 302 is configured to match the inner wall of the second engagement groove 401 and can engage with the second engagement groove 401.

[0047] The mark member 3 is engaged with the first engagement groove 201 of the female member 2 by the first engagement hook 301, so that the position of the mark member 3 relative to the female member 2 is fixed. The mark member 3 is provided with the second engagement hook 302 and the locking member 4 is provided with the second engagement groove 401, so that when the locking member 4 is located at the first position, the second engagement hook 302 is engaged exactly with the second engagement groove 401 of the locking member 4, so that the locking member 4 and the mark member 3 are connected. Meanwhile, the position of the locking member 4 can be determined, that is, when the second engagement hook 302 of the mark member 3 is engaged exactly with the second engagement groove 401 of the locking member 4, the locking member 4 is located exactly at the first position, and at this time, it can be ensured that the male member 1 is smoothly inserted into the through hole 202 of the female member 2. On the other hand, when the locking member 4 moves from the first position to the second position, the locking member 4 presses the marking member 3, so that the marking member 3 is separated from the female member 2 and also from the locking member 4, which provides an objective reference condition for the user to confirm whether the female member 2 and the male member 1 are correctly assembled.

[0048] Referring to FIG. 4, in some embodiments of the present application, there are two second engagement grooves 401, and the two second engagement grooves 401 are correspondingly provided on both sides of the locking member 4, and there are two second engagement hooks 302, and the two second engagement hooks 302 are for engaging with the two second engagement grooves 401, respectively.

[0049] Two sets of second engagement grooves 401 and second engagement hooks 302 that are configured to be engageable are provided, and the two sets of second engagement grooves 401 and second engagement hooks 302 are located at opposite ends of the mark member 3 or the lock member 4, respectively, thereby ensuring the stability of the connection between the mark member 3 and the lock member 4.

[0050] 3 and 4, in some embodiments of the present application, an annular groove 101 is provided on the outer circumferential surface of the male member 1, and the locking member 4 includes an engagement base 402 and two connection arms 403 provided below the engagement base 402, the two connection arms 403 are provided below the engagement base 402 with a gap between them, and two second engagement grooves 401 are formed between the two connection arms 403 and the engagement base 402. The engagement base 402 is configured to be engaged in the annular groove 101 when the locking member 4 is located at the second position.

[0051] The engaging base 402 has a U-shaped structure, which includes an arc-shaped portion and an extension portion connected to both ends of the arc-shaped portion. The annular groove 101 is a structure formed by recessing the outer wall surface of the male member 1 within a specified height range in a direction approaching the axis of the male member 1 on the circumference. When the engaging base 402 is engaged in the annular groove 101, the inner wall surface of the engaging base 402 abuts against the outer wall surface of the annular groove 101.

[0052] When the male member 1 is inserted into the through hole 202 of the female member 2 and the annular groove 101 and the engagement base 402 of the locking member 4 are located on the same plane, the insertion depth of the male member 1 reaches a predetermined value, whereby the locking member 4 moves from the first position to the second position and the inner wall surface of the engagement base 402 of the locking member 4 comes into contact with the outer wall surface of the annular groove 101 of the male member. Since the inner diameter of the engagement base 402 is equal to or smaller than the outer diameter of the annular groove 101 of the male member 1, when the engagement base 402 is engaged in the annular groove 101, the male member 1 cannot move further downward along the through hole 202 of the female member 2, and at this time the locking member 4 is locked with the male member 1 and also with the female member 2, so that the male member 1 and the female member 2 are locked together, completing the assembly of the male member 1 and the female member 2.

[0053] 4, 6, 8, 10 and 11, Fig. 8 is a schematic cross-sectional view of the locking member 4 and the female member 2 according to the embodiment of the present application when they are connected, Fig. 10 is a schematic cross-sectional view of the locking member 4 and the marking member 3 according to the embodiment of the present application when they are connected, and Fig. 11 is a schematic cross-sectional view of the connection structure according to the embodiment of the present application seen from a certain angle. In some embodiments of the present application, a third engagement groove 203 is provided on the outer periphery of the female member 2, and a third engagement hook 404 is further provided on the locking member 4. The third engagement hook 404 is configured to be engaged in the third engagement groove 203 when the locking member 4 is located at the first position.

[0054] A third engagement groove 203 is provided on the outer periphery of the female member 2, and a third engagement hook 404 is provided correspondingly on the locking member 4. When the third engagement hook 404 of the locking member 4 and the third engagement groove 203 of the female member 2 are engaged, the locking member 4 is exactly located at the first position, and thus the position of the locking member 4 can be determined, the locking member 4 can be quickly located at the first position during installation, and unintentional removal of the locking member 4 from the female member 2 can be prevented. When the locking member 4 is located at the first position, the engagement base 402 of the locking member 4 is located between the inner diameter and the outer diameter of the through hole 202 of the female member 2, so that it is ensured that the male member 1 is smoothly inserted into the through hole 202 of the female member 2.

[0055] In some embodiments of the present application, there are two third engagement grooves 203, the two third engagement grooves 203 being spaced apart on the outer periphery of the female member 2, and there are two third engagement hooks 404, the two third engagement hooks 404 being respectively provided at the ends of the two connecting arms 403 that are away from the engagement base 402.

[0056] Two sets of third engagement grooves 203 and third engagement hooks 404 that are configured to be engageable are provided, and the two sets of third engagement grooves 203 and third engagement hooks 404 are located at symmetrical ends of the female member 2 or the locking member 4, respectively, thereby ensuring the stability of the connection between the female member 2 and the locking member 4.

[0057] 8, in some embodiments of the present application, a groove 405 is provided on the side of the connecting arm 403 away from the through hole 202. The groove 405 abuts against the female member 2 when the male member 1 is inserted into the through hole 202.

[0058] By providing groove 405, when the male member 1 and the female member 2 are assembled, groove 405 abuts against part of the outer periphery of the female member 2, increasing the contact area between the locking member 4 and the female member 2 and ensuring the stability of the connection between the locking member 4 and the female member 2.

[0059] 8, in some embodiments of the present application, a position limiting groove 406 is provided on the side of the locking member 4 facing the through hole 202, and a position limiting block 204 corresponding to the position limiting groove 406 is provided on the edge of the through hole 202. The position limiting block 204 is configured to be engaged in the position limiting groove 406 when the locking member 4 is located at the second position.

[0060] A position limiting block 204 is provided on the outside of the edge of the through hole 202 of the female member 2, and a position limiting groove 406 is provided in the locking member 4 correspondingly. When the locking member 4 moves to the second position, that is, when the female member 2 and the male member 1 are correctly assembled, the position limiting block 204 fits exactly into the position limiting groove 406, thereby preventing the locking member 4 from moving, resulting in a simple configuration and easy operation.

[0061] 5, in some embodiments of the present application, the indicia member 3 is provided with a pull portion 303. The pull portion 303 is for a user to remove the indicia member 303 from the lock member 4.

[0062] By providing the pull portion 303, when the male member 1 and the female member 2 are assembled, the user can easily remove the mark member 3 from the lock member 4 using the pull portion 303, providing a handle for the user to remove the mark member 3, and facilitating user operation.

[0063] As shown in FIG. 5, in some embodiments of the present application, the indicia member 3 is provided with a mounting notch 304 , which is configured to receive a portion of the locking member 4 .

[0064] By providing the mounting notch 304, the lock member 4 can be connected to the female member 2 by passing through the mark member 3 from the mounting notch 304 and annularly mounting it on a part of the outer periphery of the female member 2.

[0065] 7, in some embodiments of the present application, a positioning post 305 is provided on the side of the indicia member 3 facing the locking member 4, and a positioning hole (not shown) is provided on the side of the locking member 4 facing the indicia member 3. The positioning post 305 is inserted into the positioning hole to connect the locking member 4 and the indicia member 3.

[0066] The above examples are merely for illustrating the technical solution of the present application, and are not intended to limit it. Although the present application has been described in detail with reference to the above examples, those skilled in the art may modify the technical solutions described in the above examples, and may make equivalent substitutions for some or all of the technical features therein. These modifications or substitutions do not deviate the essence of the technical solution from the scope of the technical solutions of the examples of the present application, and are within the scope of the claims and the specification of the present application. In particular, as long as there is no structural contradiction, the technical features described in the examples can be arbitrarily combined. The present application is not limited to the specific examples disclosed in the specification, and includes all technical solutions within the scope of the claims.

Claims

1. The connector includes a male member, a female member, a marking member, and a locking member. The female member includes a first engagement portion and a through hole for inserting the male member, the indicia member includes a second engagement portion for engaging with the first engagement portion; the locking member is attached to the female member, and is configured to move from a first position to a second position when an insertion depth of the male member reaches a predetermined value, thereby locking the male member, and to drive the second engagement portion to separate from the first engagement portion; An annular groove is provided on the outer circumferential surface of the male member, and the locking member includes an engagement base and two connecting arms provided below the engagement base, the two connecting arms being provided below the engagement base with a space therebetween, and the engagement base is configured to be engaged in the annular groove when the locking member is located at the second position. A connection structure characterized by:

2. The first engaging portion is configured as a first engaging groove provided on the outer periphery of the female member, and the second engaging portion is configured as a first engaging hook provided on the mark member. The connection structure according to claim 1 .

3. The first engagement groove is provided in two pieces, and the two first engagement grooves are provided at an interval on the outer periphery of the female member, There are two first engagement hooks, and the two first engagement hooks are for engaging with the two first engagement grooves, respectively. The connection structure according to claim 2 .

4. A second engagement groove is provided on the locking member, a second engagement hook is provided on the indicia member, and the second engagement hook is adapted to engage with the second engagement groove, and the locking member is configured to drive the second engagement hook to separate from the second engagement groove when the locking member moves from the first position to the second position. The connection structure according to any one of claims 1 to 3.

5. There are two second engagement grooves, and the two second engagement grooves are provided on both sides of the locking member, There are two second engagement hooks, and the two second engagement hooks are for engaging with the two second engagement grooves, respectively.

5. The connection structure according to claim 4.

6. The two second engagement grooves are formed between the two connection arms and the engagement base.

6. The connection structure according to claim 4 or 5.

7. A third engagement groove is provided on the outer periphery of the female member, and a third engagement hook is further provided on the locking member, and the third engagement hook is configured to be engaged in the third engagement groove when the locking member is located at the first position. The connection structure according to any one of claims 1 to 6.

8. The third engagement groove is provided in two pieces, and the two third engagement grooves are provided at an interval on the outer periphery of the female member, The third engagement hooks are provided in two pieces, and the two third engagement hooks are provided at the ends of the two connecting arms that are separated from the engagement base, respectively. The connection structure according to claim 7 .

9. A groove is provided on the connecting arm on a side away from the through hole, and the groove abuts against the female member when the male member is inserted into the through hole. The connection structure according to claim 6 .

10. A position limiting groove is provided on the side of the locking member facing the through hole, and a position limiting block corresponding to the position limiting groove is provided on an edge of the through hole, and the position limiting block is configured to be engaged in the position limiting groove when the locking member is located at the second position. The connection structure according to any one of claims 1 to 9.

11. The indicia member is provided with a pull portion for allowing a user to remove the indicia member from the locking member. The connection structure according to any one of claims 1 to 10.

12. The indicia member has a mounting notch, the mounting notch being configured to receive a portion of the locking member. The connection structure according to any one of claims 1 to 11.

13. A battery, The connection structure according to any one of claims 1 to 12 is provided for connecting a cooling pipe of a cooling system of the battery. A battery characterized in that

14. A battery according to claim 13, said battery being for providing electrical energy.

1. An electrical installation comprising:

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