Overvoltage and overheat protection device for automobile starting power supply

Abstract

The utility model belongs to the technical field of automobile starting power supply overvoltage and overheat protection, and discloses an automobile starting power supply overvoltage and overheat protection device which comprises an automobile power supply body, a connecting end is fixedly arranged at the top end of the automobile power supply body, and the two ends of the connecting end are each provided with a protection frame used for power connection. An overheating protection assembly is further arranged in the protection frame. The overheat protection assembly comprises a base fixedly arranged in the protection frame and a hot melting rod structure design in the overheat protection assembly, under the condition that an automobile power supply short circuit is overheated, a connecting end is rapidly heated, an overall rod body structure is overheated to fuse a tightly-attached hot melting rod, and therefore the automobile power supply short circuit is rapidly disengaged from a threaded binding post, separation power-off operation is completed, and the service life of the automobile power supply short circuit is prolonged. The automobile power supply is prevented from being further heated and overheated, the automobile power supply is protected, and the problem that the automobile power supply is damaged under the condition of long-time overheating is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to automobile starting power overvoltage overheat protection technical field, specifically a kind of automobile starting power overvoltage overheat protection device. BACKGROUND

[0002] Automobile starting power, also known as automobile emergency starting power, is a portable power device, mainly used to provide emergency starting capability when the battery power is insufficient or other reasons cause the car cannot be started, when the automobile emergency starting power is connected, if improper operation leads to the positive and negative metal parts of battery clamp directly contact, the power will intelligently issue a beeping sound to prompt error, at the same time, short circuit or spark is avoided, without replacing fuse or restarting.

[0003] At the same time, the power protection frame for new energy vehicles with the application number CN202321255057.7 includes a power box, the inner wall surface of the power box is movably provided with a power rack on both sides, the bottom inside of the power rack is fixedly connected with a spring leg, and the bottom of the installation cavity and the bottom are both fixedly provided with a resin pad; the power protection frame for new energy vehicles described above protects the automobile power by the structural design of the resin pad during use, however, when the power is overheated or overvoltage, a large amount of heat will be generated, and in a closed environment, overheating damage is extremely easy to occur, and the power protection function cannot be played, affecting the service life of the automobile power.

[0004] Therefore, the automobile starting power overvoltage overheat protection device is proposed for the above problems. INVENTION CONTENTS

[0005] To solve the problems in the above background art, the utility model provides an automobile starting power overvoltage overheat protection device, which can quickly fuse the automobile power overheat protection and avoid automobile power damage.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an automobile starting power overvoltage overheat protection device, including automobile power body, the top of the automobile power body is fixedly provided with connecting end, the both ends of the connecting end are provided with protection frame for power connection, the inside of the protection frame further includes overheat protection assembly;

[0007] The overheat protection assembly includes a base fixedly arranged in the protection frame, a threaded terminal post is fixedly arranged at the top of the base, a limiting ring is sleeved outside the threaded terminal post, a damper is fixedly arranged outside the limiting ring and fixedly arranged with the protection frame, a hook is fixedly arranged on the other side of the limiting ring and matched with the threaded terminal post, and a hot melting rod is embedded in the inside of the hook and matched with the threaded terminal post.

[0008] Preferably, the outer side of the damper is provided with a spring, and the spring is in a tension state in the working state.

[0009] Preferably, the limiting ring is a copper ring, the heat melting rod is made of aluminum-antimony alloy, and the end of the heat melting rod is provided in a form of a ball.

[0010] Preferably, the top end surface of the hook is provided with a clamping groove, and the heat melting rod is located in the clamping groove.

[0011] Preferably, the outer side of the limiting ring further comprises a closed protection assembly.

[0012] The closed protection assembly comprises an elastic insulation pad attached to the bottom end of the limiting ring, and the elastic insulation pad is sleeved on the outer side of the threaded terminal post.

[0013] Preferably, the top end of the limiting ring is attached with a closed cover sleeved on the threaded terminal post, the top end of the closed cover is attached with a pressing plate, and the top end of the pressing plate is fixedly provided with a hexagonal chuck.

[0014] Preferably, the bottom end of the pressing plate is fixedly provided with a positioning screw threadedly arranged on the threaded terminal post, the top end of the closed cover is provided with a through hole one, and the inner top end of the threaded terminal post is provided with a through hole two.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The heat melting rod structure in the overheat protection assembly is designed, in the case of short circuit overheat of the automobile power supply, the connecting end rapidly heats, the overheat of the overall rod body structure will melt the closely attached heat melting rod, thereby rapidly separating from the threaded terminal post, completing the separation and power-off operation, avoiding further temperature rise and overheat of the automobile power supply, protecting the automobile power supply, and preventing automobile power supply damage problems in the case of long time overheat.

[0017] 2. The closed protection assembly has a protection effect in the use process, can support the closed cover structure used in the middle to slide down along the threaded terminal post, contact and close above the elastic insulation pad, close and protect the entire threaded terminal post, and avoid the risk of short circuit of the externally connected metal again. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a whole structure schematic view of the utility model;

[0019] Fig. 2 It is a base mounting structure schematic view of the overheat protection assembly of the utility model;

[0020] Fig. 3 It is an installation structure schematic view of the overheat protection assembly of the utility model;

[0021] Fig. 4 It is an explosion structure schematic view of the overheat protection assembly of the utility model.

[0022] In the drawing: 1, automobile power supply body; 2, connecting end; 3, protection frame;

[0023] 4, overheat protection assembly; 41, base; 42, threaded terminal post; 43, damper; 44, spring; 45, limiting ring; 46, hook; 47, hot melting rod;

[0024] 5, closed protection assembly; 51, elastic insulating pad; 52, closed cover; 53, pressing plate; 54, positioning screw; 55, hexagonal chuck; 56, through hole one; 57, through hole two. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] As Figs. 1 to 4 shown, the utility model provides a kind of automobile starting power overvoltage overheat protection device, including automobile power supply body 1, the top of automobile power supply body 1 is fixedly arranged with connecting end 2, the both ends of connecting end 2 are provided with the protection frame 3 for connecting electricity, the protection frame 3 structure of increase can be used to the protection of threaded terminal post 42, the inside of protection frame 3 also includes overheat protection assembly 4;

[0027] Overheat protection assembly 4 includes base 41 fixedly arranged in the inside of protection frame 3, the top of base 41 is fixedly arranged with threaded terminal post 42, the outside of threaded terminal post 42 is equipped with limiting ring 45, the limiting ring 45 of the other end of stretch damper 43 is inserted into the outside of threaded terminal post 42, is positioned, avoids the condition of falling off, the outside of limiting ring 45 is fixedly arranged with the damper 43 fixedly arranged with protection frame 3, the other side of limiting ring 45 is fixedly arranged with the hook 46 that is combined with threaded terminal post 42, the inside of hook 46 is embedded with hot melting rod 47 that is combined with threaded terminal post 42, hot melting rod 47 can form closed structure by hook 46, is positioned in the outside of threaded terminal post 42 and forms passage.

[0028] Specific, the outer side of the damper 43 is sleeved with the spring 44, and the spring 44 is in a tension state in the working state, the tension spring 44 structure can tension the limiting ring 45, and after the hot melting rod 47 is melted, it can be quickly pulled open, the limiting ring 45 is provided as a copper ring, the hot melting rod 47 is made of aluminum-antimony alloy, and is quickly disconnected after melting, and the end of the hot melting rod 47 can be provided as a anti-dropping spherical shape, so that the hot melting rod 47 is positioned in the inside of the clamping groove through the anti-dropping spherical structure, and the limiting is completed, the top surface of the hook 46 is provided with a clamping groove, and the hot melting rod 47 is located in the inside of the clamping groove.

[0029] The outer side of the limiting ring 45 further comprises a closed protection assembly 5.

[0030] The closed protection assembly 5 comprises an elastic insulation pad 51 attached to the bottom end of the limiting ring 45, and the elastic insulation pad 51 is sleeved on the outer side of the threaded terminal post 42, the elastic insulation pad 51 supports the limiting ring 45, and the insulation design avoids the risk of short circuit after power-on, the top end of the limiting ring 45 is attached to the closed cover 52 sleeved with the threaded terminal post 42, the top end of the closed cover 52 is attached to the pressing plate 53, the top end of the pressing plate 53 is fixedly provided with a hexagonal chuck 55, the hexagonal chuck 55 structure is convenient for quick wiring, the bottom end of the pressing plate 53 is fixedly provided with a positioning screw 54 spirally arranged with the threaded terminal post 42, the top end of the closed cover 52 is provided with a through hole one 56, and the top end of the threaded terminal post 42 is provided with a through hole two 57, and the positioning screw 54 is inserted into the through hole structure for positioning connection.

[0031] Among them, the automobile power supply body 1 is prior art, and will not be repeated; at the same time, the utility model also includes power supply, controller and switch, which is not the main technical point of the patent, and will not be repeated. The wiring diagram of the motor in the utility model belongs to the common knowledge in the art, and its working principle is a known technology, and its type is selected according to actual use, so the control mode and wiring arrangement of the motor are not explained in detail.

[0032] Working principle and process:

[0033] The staff connects the automobile wire clamp on the automobile power supply body 1, the threaded terminal post 42 in the overheating protection assembly 4 inside the protective frame 3 on both sides of the connecting end 2, forms a passage, at the same time, the damper 43 in the overheating protection assembly 4 is stretched, the spring 44 can push the limiting ring 45 into the outside of the threaded terminal post 42 after stretching to complete positioning, the heat melting rod 47 is put into the hook 46 slot, the limiting ring 45 forms a closed structure, positioned outside the threaded terminal post 42, after assembly, when the automobile power supply body 1 is normally powered, if a short circuit occurs, the automobile power supply body 1 will have a risk of rapid overheating, which will cause the threaded terminal post 42 to rapidly increase in temperature under the overheating condition of the automobile power supply body 1, once the temperature of the threaded terminal post 42 is too high, the heat melting rod 47 structure as a fuse structure is fused, after the heat melting rod 47 is fused, the spring 44 outside the damper 43 is pulled and tightened, the limiting ring 45 is pulled away from the outside of the threaded terminal post 42, the filling structure in the middle is separated from the threaded terminal post 42, and the upper closed cover 52 structure loses support and falls off, and the closed cover 52 slides to the upper side of the elastic insulating pad 51, and the threaded terminal post 42 is closed, so that accidental contact and secondary short circuit are avoided, and the protection effect is better, and at the same time, in use, the pressing plate 53 structure installed through the positioning screw 54 is pressed tightly to the closed cover 52, the heat melting rod 47 in the slot is positioned through the through hole one 56 and the through hole two 57 structure, and the heat melting rod 47 is prevented from being separated under stress.

[0034] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An overvoltage and overheat protection device for an automotive starting power supply, comprising an automotive power supply body (1), characterized in that: The top end of the automobile power supply body (1) is fixedly provided with a connecting end (2), both ends of the connecting end (2) are provided with a protective frame (3) for connecting electricity, and the inside of the protective frame (3) further comprises an overheat protection assembly (4). The overheat protection assembly (4) comprises a base (41) fixedly arranged in the inside of the protective frame (3), the top end of the base (41) is fixedly provided with a threaded terminal post (42), the outer side of the threaded terminal post (42) is sleeved with a limiting ring (45), the outer side of the limiting ring (45) is fixedly provided with a damper (43) fixedly arranged with the protective frame (3), the other side of the limiting ring (45) is fixedly provided with a hook (46) abutting with the threaded terminal post (42), and the inside of the hook (46) is embedded with a hot melting rod (47) abutting with the threaded terminal post (42).

2. The overvoltage and overheat protection device for automobile starting power supply according to claim 1, characterized in that: The outer side of the damper (43) is sleeved with a spring (44), and the spring (44) is in a tension state in a working state.

3. The overvoltage and overheat protection device for automobile starting power supply according to claim 1, characterized in that: The limiting ring (45) is a copper ring, the hot melting rod (47) is made of aluminum-antimony alloy, and the end of the hot melting rod (47) can be provided in a anti-loosening spherical shape.

4. The overvoltage and overheat protection device for automobile starting power supply according to claim 1, characterized in that: The top end surface of the hook (46) is provided with a clamping groove, and the hot melting rod (47) is located in the inside of the clamping groove.

5. The overvoltage and overheat protection device for automobile starting power supply according to claim 1, characterized in that: The outer side of the limiting ring (45) further comprises a closed protection assembly (5); The closed protection assembly (5) comprises an elastic insulation pad (51) abutting with the bottom end of the limiting ring (45), and the elastic insulation pad (51) is sleeved on the outer side of the threaded terminal post (42).

6. The overvoltage and overheat protection device for automobile starting power supply according to claim 1, characterized in that: The top end of the limiting ring (45) is abuttingly provided with a closed cover (52) sleeved with the threaded terminal post (42), the top end of the closed cover (52) is abuttingly provided with a pressing plate (53), and the top end of the pressing plate (53) is fixedly provided with a hexagonal chuck (55).

7. The overvoltage and overtemperature protection device for automobile starting power supply according to claim 6, characterized in that: The bottom end of the pressing plate (53) is fixedly provided with a positioning screw (54) spirally arranged with the threaded terminal post (42), the top end of the closed cover (52) is provided with a through hole one (56), and the inside of the top end of the threaded terminal post (42) is provided with a through hole two (57).

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