CN220963965U

CN220963965U - Charging socket with overheat protection

Info

Publication number: CN220963965U
Application number: CN202323060593.4U
Authority: CN
Inventors: 郑伟; 孙良忠; 田曜
Original assignee: ZHEJIANG ZHONGXUN ELECTRONICS CO Ltd
Current assignee: ZHEJIANG ZHONGXUN ELECTRONICS CO Ltd
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-05-14
Anticipated expiration: 2033-11-13

Abstract

The utility model discloses a charging socket with overheat protection, which comprises: the body is provided with a containing cavity, and the containing cavity is provided with a first opening; the first conductive piece is accommodated in the accommodating cavity; the second conductive piece is accommodated in the accommodating cavity; the temperature controller is accommodated in the accommodating cavity, and is connected with the first conductive piece and the second conductive piece in series to form a power supply loop; the temperature controller is provided with a switch module, the temperature controller detects the temperature of the first conductive piece or the second conductive piece or the accommodating cavity, and when the detected temperature exceeds a preset value, the temperature controller controls the switch module to disconnect the power supply loop. The temperature controller is connected in series in the whole power supply loop, and when the temperature is too high, the power supply loop can be disconnected to stop power supply, so that the normal operation of the whole charging socket is ensured. Compared with the prior art, the structure has the advantages that the built-in protection effect is formed, the temperature controller is directly located in the body of the charging socket, so that the integrated effect is formed, and the assembly is more convenient in the process of being installed and fixed with the electric vehicle.

Description

Charging socket with overheat protection

Technical Field

The utility model relates to the technical field of sockets, in particular to a charging socket with overheat protection.

Background

Electric vehicles, also known as battery cars or electric bicycles. The electric vehicle provides great convenience for the life of people. The number of electric vehicles per city is increasing. The problem of charging electric vehicles has been a focus of attention, particularly in the charging process, combustion accidents often occur.

The existing means for preventing combustion is basically power-off protection by external control and by an external charger. But external control can not monitor the inside of the battery car in real time, especially the position of a charging socket of the battery car, is also an accident point easy to burn, and when the temperature on the anode and cathode conducting plates is higher, the charging socket is easy to burn and melt, so that the combustion accident is caused, the combustion accident is obviously not practical only by an external charger, and the external charger can not detect the temperature on the anode and cathode conducting plates in real time. Therefore, how to realize temperature detection on the positive and negative conductive plates and timely control interruption of the whole electrical loop becomes a technical problem which needs to be solved by the technicians in the field.

Disclosure of utility model

Therefore, the technical problem to be solved by the utility model is how to realize the temperature detection on the positive and negative conductive plates and timely control the interruption of the whole electrical circuit. To this end, a charging socket with overheat protection, comprising:

the body is provided with a containing cavity, and the containing cavity is provided with a first opening;

the first conductive piece is accommodated in the accommodating cavity;

the second conductive piece is accommodated in the accommodating cavity;

The temperature controller is accommodated in the accommodating cavity, and is connected with the first conductive piece and the second conductive piece in series to form a power supply loop; the temperature controller is provided with a switch module, the temperature controller detects the temperature of the first conductive piece or the second conductive piece or the accommodating cavity, and when the detected temperature exceeds a preset value, the temperature controller controls the switch module to disconnect a power supply loop.

The temperature controller is attached to one end, far away from the first opening, of the first conductive piece.

The first conductive member is an anode.

The temperature controller is provided with a temperature sensor module, and the temperature sensor module is in contact or non-contact.

The temperature controller is provided with an overload protection module, the overload protection module detects the current of the power supply loop, and when the current exceeds a preset value, the temperature controller cuts off the power supply loop.

The body comprises a shell and a rear cover, the shell is matched with the rear cover to form the accommodating cavity, the shell and/or the rear cover is provided with a partition board, the partition board separates the accommodating cavity to form a first cavity and a second cavity, the first opening is positioned in the first cavity, and the temperature controller is accommodated in the second cavity.

The rear cover is formed by secondary injection molding.

The rear cover is connected with the shell through ultrasonic welding.

The accommodating cavity is internally provided with an isolation block, and the first conductive piece or the second conductive piece is accommodated in the isolation block.

The waterproof pad is accommodated in the isolation block, and the waterproof pad is provided with an insertion slot corresponding to the first conductive piece or the second conductive piece.

The technical scheme of the utility model has the following advantages:

1. According to the charging socket with overheat protection, the temperature controller is connected in series in the whole power supply loop, and when the phenomenon of overhigh temperature occurs, the power supply loop can be disconnected, and power supply is stopped, so that the normal operation of the whole charging socket is ensured. Compared with the prior art, the structure has the advantages that the built-in protection effect is formed, the temperature controller is directly located in the body of the charging socket, so that the integrated effect is formed, and the assembly is more convenient in the process of being installed and fixed with the electric vehicle.

2. According to the charging socket with overheat protection, the temperature controller is attached to the first conductive piece, so that temperature detection is more accurate, and the temperature on the first conductive piece can be sensed in real time, so that the whole charging socket is ensured not to be overheated.

3. According to the charging socket with overheat protection, the arrangement of the positive electrode can achieve a better on-off effect, and the temperature on the positive electrode is more accurate.

4. The charging socket with overheat protection provided by the utility model has the advantages that the temperature sensor module can be adjusted according to actual requirements, and can be in contact or non-contact.

5. According to the charging socket with overheat protection, the overload protection and the temperature protection are matched, so that the double protection effect is achieved.

6. According to the charging socket with overheat protection, the partition plates are arranged to form an isolation waterproof effect, the first cavity is used for being matched with an external connector to form an electric connection effect, and the second cavity is used for accommodating the temperature controller and outputting a wire harness.

7. According to the charging socket with overheat protection, the temperature controller and the rear cover are integrated through the secondary injection molding, meanwhile, the rear cover and the shell are tightly sealed, and the integral sealing effect is improved.

8. The charging socket with overheat protection provided by the utility model also improves the sealing grade of the joint of the rear cover and the shell by ultrasonic welding.

9. According to the charging socket with overheat protection, the isolation block is arranged, so that the isolation protection effect between the first conductive piece and the second conductive piece is achieved, and even if water enters the first cavity, the first conductive piece and the second conductive piece cannot be broken unless the whole charging socket is soaked.

10. According to the charging socket with overheat protection, the waterproof pad is arranged, the protection level is further improved, the external connector can be electrically connected with the first conductive piece or the second conductive piece only through the insertion slot, and when the external connector is pulled out, liquid cannot enter the inside of the isolation block through the insertion slot. The waterproof pad is made of rubber.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a charging socket with overheat protection according to the present utility model;

FIG. 2 is a cross-sectional view of a charging receptacle with overheat protection according to the present utility model;

Fig. 3 is a schematic partial structure of a charging socket with overheat protection according to the present utility model;

fig. 4 is a schematic partial structure diagram of a charging socket with overheat protection according to the present utility model;

Fig. 5 is a schematic partial structure of a charging socket with overheat protection according to the present utility model;

FIG. 6 is a schematic diagram of a power supply circuit provided by the present utility model;

FIG. 7 is a block diagram of a thermostat provided by the present utility model;

fig. 8 is a block diagram of a temperature controller according to the present utility model.

Reference numerals illustrate:

11. A body; 12. a first conductive member; 13. a second conductive member; 14. a wire harness; 15. a temperature controller; 16. a housing; 17. a rear cover; 18. a partition plate; 19. a first chamber; 20. a second chamber; 21. a spacer block; 22. a waterproof pad; 23. a signal terminal; 111. a receiving chamber; 112. a first opening; 151. a first connection end; 152. a second connection end; 153. a switch module; 154. a temperature sensor module; 155. an overload protection module; 161. a protrusion; 221. inserting a slit;

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

This embodiment provides a charging socket with overheat protection, as shown in fig. 1 to 8, including:

The body 11 is provided with a containing cavity 111, the containing cavity 111 is provided with a first opening 112, the first opening 112 is used for being matched with an external connector, and the external connector penetrates through the first opening 112 to extend into the containing cavity 111, so that an electric connection effect between the external connector and a conductive piece in the containing cavity 111 is achieved.

The first conductive member 12 is accommodated in the accommodating cavity 111, one end of the first conductive member 12 is matched with an external connector, the other end of the first conductive member 12 is used for being electrically connected with the wire harness 14, and then the wire harness 14 is matched with a storage battery in the electric vehicle to form power supply.

The second conductive piece 13 is accommodated in the accommodating cavity 111, one end of the second conductive piece 13 is matched with an external connector, the other end of the first conductive piece 12 is used for being electrically connected with the wire harness 14, and then the wire harness 14 is matched with a storage battery in the electric vehicle to form power supply.

The temperature controller 15 is accommodated in the accommodating cavity 111, the temperature controller 15 is connected in series with the first conductive piece 12 and the second conductive piece 13 to form a power supply loop, specifically, the temperature controller 15 comprises a first connecting end 151 and a second connecting end 152, the first connecting end 151 and one end, far away from the first opening 112, of the first conductive piece 12 are electrically connected, and the connection can be wire connection, riveting or welding. The second connection end 152 is electrically connected to one end of the battery in the electric vehicle, and one end of the second conductive member 13 away from the first opening 112 is electrically connected to the other end of the battery in the electric vehicle. In brief, the thermostat 15 is connected in series in the power supply circuit. The temperature controller 15 detects the temperature of the first conductive member 12 or the second conductive member 13 or the accommodating chamber 111, where the temperature controller 15 may detect any one or more of the three temperatures according to actual needs. When the detected temperature exceeds the preset value, the temperature controller 15 turns off the power supply circuit. The preset value can be determined according to the thermal deformation value of the material of the body 11 or according to big data analysis. The temperature controller 15 is internally provided with a switch module 153, and when the temperature exceeds a preset value, the switch module 153 acts to realize the breaking effect of the whole power supply loop. The switch module 153 may be a double-gold structure or other program control switch on-off mode. In this embodiment, the switch module 153 is built in the thermostat 15. Through establishing ties temperature controller 15 in whole power supply loop, when the high phenomenon of temperature takes place, can break off the power supply loop, stop the power supply to ensure the normal operating of whole charging socket. Compared with the prior art, the structure has the advantages that the built-in protection effect is formed, the temperature controller 15 is directly positioned in the body 11 of the charging socket, so that the integrated effect is formed, and the assembly is more convenient in the process of being installed and fixed with the electric vehicle.

Specifically, as shown in fig. 3, the temperature controller 15 is attached to an end of the first conductive member 12 away from the first opening 112. The temperature controller 15 is attached to the first conductive member 12, so that temperature detection is more accurate, and the temperature on the first conductive member 12 can be sensed in real time, so that the whole charging socket is ensured not to be overheated. Here temperature controller 15 is the cuboid structure, and the side of temperature controller 15 is kept away from first opening 112 one end laminating with first electrically conductive piece 12, and first electrically conductive piece 12 also can be the plane setting with the one end of temperature controller 15 laminating, forms the laminating between face and the face, increases area of contact to improve the accuracy of temperature detection. Besides, the temperature controller 15 can also detect the temperature on the second conductive member 13, and the temperature controller 15 is attached to one end of the second conductive member 13 away from the first opening 112. The temperature controller 15 may also detect the temperature inside the accommodating chamber 111.

Specifically, the first conductive member 12 is a positive electrode. The arrangement of the anode can better realize an on-off effect, and the temperature on the anode is more accurate. And the temperature controller 15 is directly connected with the positive electrode in series, so that the on-off is more convenient.

Specifically, as shown in fig. 3 and 7-8, the temperature controller 15 is provided with a temperature sensor module 154, and the temperature sensor module 154 is in contact or non-contact. The temperature sensor module 154 can be adjusted according to actual requirements, and can be either contact type or non-contact type. In this embodiment, the temperature sensor module 154 may be a thermistor or thermocouple or a dual gold.

Specifically, as shown in fig. 3 and 7-8, the temperature controller 15 is provided with an overload protection module 155, and the overload protection module 155 detects the current of the power supply loop, and can detect the current by adopting a transformer or an AD detection mode. When the current exceeds the preset value, the temperature controller 15 controls the switch module 153 to disconnect the power supply loop. The preset value of the current here may be defined according to the current level of the actual charging. The overload protection and the temperature protection are matched, so that the double protection effect is formed. The switch module 153, the overload protection module 155 and the temperature sensor module 154 may be connected in series, or controlled by an integrated control circuit.

Specifically, as shown in fig. 1 to 3, the body 11 includes a housing 16 and a rear cover 17, and the housing 16 and the rear cover 17 cooperate to form a receiving chamber 111. The housing 16 is provided with a partition 18 on the side facing the rear cover 17, the partition 18 partitions the accommodating chamber 111 to form a first chamber 19 and a second chamber 20, the first chamber 19 is located on the housing 16, and the first opening 112 is located in the first chamber 19. The second chamber 20 is formed by the partition 18 and the rear cover 17. The first conductive element 12 and the second conductive element 13 are both partially located in the first chamber 19, and the remaining components extend into the second chamber 20 through the partition 18. Here, in order to improve the sealing level of the junction between the first conductive member 12 and the second conductive member 13 and the separator 18, the sealing level may be improved by integrally injection molding the first conductive member 12 and the second conductive member 13 with the housing 16. The temperature controller 15 is accommodated in the second chamber 20, the second chamber 20 is further communicated with the wire harness 14, one end, away from the first chamber 19, of the second chamber 20 behind the wire harness 14 extends into the second chamber 20, the wire harness 14 and the second connecting end 152 form an electrical connection effect with one end of the second conductive piece 13, and the connection mode of the wire harness 14 can be riveting, welding or bolting. The partition 18 is provided to form an isolating and waterproof effect, the first chamber 19 is used to cooperate with an external connector to form an electrical connection effect, and the second chamber 20 is used to accommodate the temperature controller 15 and the output of the wire harness 14. In addition, the partition 18 may be located on the rear cover 17, and the partition 18 may be formed by splicing or overlapping the housing 16 and the rear cover 17.

Specifically, the rear cover 17 is injection molded twice. The arrangement of secondary injection molding makes temperature controller 15 and back lid 17 form an organic whole, and the seal between back lid 17 and shell 16 is inseparabler simultaneously, increases holistic sealed effect. It should be noted that, during the secondary injection molding, the electrical connection among the temperature controller 15, the wire harness 14, the first conductive member 12 and the second conductive member 13 is already completed, then the rear cover 17 is formed through the secondary injection molding, and the rear cover 17 formed through the secondary injection molding is firmly attached to the housing 16, so that the overall sealing level is improved.

Specifically, the rear cover 17 and the housing 16 are connected by ultrasonic fusion welding. Ultrasonic fusion welding also improves the seal level at the junction of the rear cover 17 and the housing 16.

Specifically, as shown in fig. 2-3, the casing 16 is provided with a protrusion 161, and the protrusion 161 is specifically located on the partition 18 and extends toward one side of the rear cover 17, so that the protrusion 161 has a positioning effect, and meanwhile, the contact area with the rear cover 17 is increased, so that the secondary injection molding is firmer. The outer side surfaces of the case 16 and the rear cover 17 are arranged in a coplanar manner after the two are mated, thereby improving the overall aesthetic appearance.

Specifically, as shown in fig. 1 to 5, the accommodating chamber 111 is provided therein with a spacer 21, and the spacer 21 is located in the first chamber 19. The first conductive member 12 or the second conductive member 13 is accommodated in the isolation block 21. The provision of the isolation block 21 provides an isolation and protection effect between the first conductive member 12 and the second conductive member 13, and even if water enters the first chamber 19, no disconnection occurs between the first conductive member 12 and the second conductive member 13 unless the whole soaking is performed. In this embodiment, the second conductive member 13 is located in the isolation block 21, but it is to be noted that a through groove is provided in the isolation block 21, and the through groove is disposed through, that is, the channel communicates the first chamber 19 and the second chamber 20, part of the second conductive member 13 is located in the through groove, and part of the second conductive member 13 extends to the second chamber 20 through the partition 18. The distance between the second conductive element 13 and the first opening 112 is greater than the distance between the isolation block 21 and the first opening 112, and in short, the second conductive element 13 is embedded in the isolation block 21. The height of the spacer 21 may be equal to or higher than the height of the first conductive member 12 in the first chamber 19, where it is preferable that the height of the spacer 21 is higher than the height of the first conductive member 12 in the first chamber 19.

Specifically, as shown in fig. 1 to 4, the waterproof pad 22 is further included, the waterproof pad 22 is accommodated in the isolation block 21, and the waterproof pad 22 is provided with an insertion slot 221 corresponding to the first conductive member 12 or the second conductive member 13. The waterproof pad 22 is further improved in protection level, and the external connector can be electrically connected with the first conductive member 12 or the second conductive member 13 only through the insertion slot 221, so that when the external connector is pulled out, liquid cannot enter the inside of the isolation block 21 through the insertion slot 221. The insertion slit 221 may be Y-shaped or i-shaped. The waterproof pad 22 is made of rubber. In this embodiment, the waterproof pad 22 is located on the top surface of the second conductive member 13. The second conductive member 13 is connected to the negative electrode. The top surface of the isolation block 21 is provided with a groove, the waterproof pad 22 is positioned in the groove, and the waterproof pad 22 and the groove can be in interference fit and can be adhered and fixed.

Specifically, as shown in fig. 5, the circuit further includes signal terminals 23, and the number of signal terminals 23 may be one or more. The signal terminals 23 are partially accommodated in the spacer 21, and the remaining portions extend through the partition 18 to the second chamber 20, and then cooperate with the wire harness 14 to form an electrical connection effect. The wire harness 14 may be integrated into one piece or may be a plurality of wires. The number of the signal terminals 23 and the arrangement mode of the signal terminals 23 can be adjusted according to actual situations so as to meet the requirements of different situations.

Specifically, the charging socket is mounted to an electric vehicle, and the mounting and fixing effects are formed by the two fixing holes on the shell. In addition, only a portion of the entire charging receptacle adjacent to the first opening 112 is exposed, and the remaining portion is located inside the electric vehicle and electrically connected to a battery in the electric vehicle through the output harness 14.

Specifically, the charging socket of the present application is further provided with a protective cover for closing the first opening 112, the protective cover is rotationally connected with the body 11 or the electric vehicle, and a torsion spring is further provided at the rotational connection position of the protective cover, so that in a normal state, the protective cover always closes the first opening 112, and only when an operator turns over the protective cover, the first opening 112 can be exposed. This is prior art and is not shown in the drawings of this embodiment.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A charging socket with overheat protection, comprising:

A body (11) provided with a housing cavity (111), the housing cavity (111) being provided with a first opening (112);

a first conductive member (12) accommodated in the accommodation chamber (111);

A second conductive member (13) accommodated in the accommodation chamber (111);

The temperature controller (15) is accommodated in the accommodating cavity (111), and the temperature controller (15) is connected with the first conductive piece (12) and the second conductive piece (13) in series to form a power supply loop; the temperature controller (15) is provided with a switch module (153), the temperature controller (15) detects the temperature of the first conductive piece (12) or the second conductive piece (13) or the accommodating cavity (111), and when the detected temperature exceeds a preset value, the temperature controller (15) controls the switch module (153) to disconnect a power supply loop.

2. The charging socket with overheat protection according to claim 1, wherein the temperature controller (15) is attached to an end of the first conductive member (12) remote from the first opening (112).

3. The charging socket with overheat protection according to claim 2, wherein the first conductive member (12) is a positive electrode.

4. The charging socket with overheat protection according to claim 1, wherein the temperature controller (15) is provided with a temperature sensor module (154), the temperature sensor module (154) being either contact or non-contact.

5. The charging socket with overheat protection according to claim 1, wherein the temperature controller (15) is provided with an overload protection module (155), the overload protection module (155) detects the current of the power supply circuit, and when the current exceeds a preset value, the temperature controller (15) disconnects the power supply circuit.

6. The charging socket with overheat protection according to claim 1, wherein the body (11) comprises a housing (16) and a rear cover (17), the housing (16) and the rear cover (17) cooperate to form the accommodating cavity (111), the housing (16) and/or the rear cover (17) are provided with a partition plate (18), the partition plate (18) separates the accommodating cavity (111) to form a first cavity (19) and a second cavity (20), the first opening (112) is located in the first cavity (19), and the temperature controller (15) is accommodated in the second cavity (20).

7. The charging socket with overheat protection according to claim 6, wherein the rear cover (17) is injection molded twice.

8. The charging socket with overheat protection according to claim 6, wherein the rear cover (17) and the case (16) are connected by ultrasonic fusion welding.

9. The charging socket with overheat protection according to claim 1, wherein an isolation block (21) is provided in the housing cavity (111), and the first conductive member (12) or the second conductive member (13) is housed in the isolation block (21).

10. The charging socket with overheat protection according to claim 9, further comprising a waterproof pad (22), the waterproof pad (22) being accommodated in the isolation block (21), the waterproof pad (22) being provided with an insertion slit (221) corresponding to the first conductive member (12) or the second conductive member (13).