A power supply body and cable connection reinforcement structure

Abstract

The utility model discloses a power source body and cable connection reinforcement structure, which belongs to the field of adapters. An assembly hole is specially opened on the upper cover for assembling the wire overflow outlet, and a positioning strip for limiting a limit block is arranged inside the upper cover, and the limit block is matched with a pin for assembly. During assembly, the wire overflow outlet passes through the assembly hole, and the limit block covers the wire overflow outlet, and then the pin is stably assembled on the upper cover. The independent limit block design enables it to better fit closely with the wire overflow outlet and the upper cover assembly to form better airtightness, and can play a buffering role at the connection between the wire overflow outlet and the upper cover when the wire overflow outlet is subjected to force, and combined with the reinforcement ring of the wire overflow outlet, the wire overflow outlet can have better tensile and impact resistance after assembly, and can better prevent the wire overflow outlet from falling out of the assembly hole due to forces in different directions, and the sealing ring structure of the wire overflow outlet can also further enhance its airtightness during assembly, thereby ensuring the safe use of the equipment.

Description

Technical Field

[0001] The utility model belongs to the field of adapters, and in particular relates to a power source body and a cable connection reinforcement structure. Background Art

[0002] An adapter is an interface converter, which can be an independent hardware interface device that allows hardware or electronic interfaces to be connected to other hardware or electronic interfaces, or it can be an information interface. Common adapters include power adapters, tripod base adapter components, USB and serial port adapters, etc. However, in the prior art, when used, the commonly used adapter shells mostly adopt direct fixing of the wire overflow port on the shell body when assembling the wires, or simply assemble mechanically by providing an I-shaped structure on the wire overflow port to clamp it between the upper and lower cover bodies. The direct fixing method is not convenient for maintenance and replacement. The latter is easy to be assembled misaligned due to the overflow port being located between the upper and lower cover bodies and only using a simple I-shaped structure for fixing during use. At the same time, it also leads to poor assembly sealing effect, insufficient tensile and impact resistance, and the overflow port component is easy to deform and fall out of the device after being subjected to thrust or pulling forces in different directions. The sealing stability is poor and it is also easy to cause damage to the connection between the wire and the device. In addition, the prior art mostly adopts the method of locking the upper and lower cover bodies with screws, which is not convenient for automated production. At the same time, a screw column needs to be left in the shell, resulting in a waste of space. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to overcome the shortcomings of the prior art, a power supply body and cable connection strengthening structure is proposed to solve the problem that when the prior art is used, the commonly used adapter housing is often used to directly fix the wire overflow port on the housing when assembling the wire, or simply provides an I-shaped structure on the wire overflow port to clamp the upper and lower cover bodies for mechanical assembly. The direct fixing method is not convenient for maintenance and replacement. The latter is easy to assemble misalignment because the overflow port is located between the upper and lower cover bodies and is only fixed with a simple I-shaped structure during use. At the same time, it also leads to poor assembly sealing effect, insufficient tensile and impact resistance, and the overflow port component is easy to deform and fall out of the device after being subjected to thrust or tension in different directions. The sealing stability is poor and it is also easy to cause damage to the connection between the wire and the device.

[0005] Secondly, the invention aims to solve the problem that the prior art mostly adopts the method of locking the upper and lower covers with screws, which is not convenient for automated production and requires screw columns to be left in the shell, resulting in a waste of space.

[0006] (II) Technical solution

[0007] The utility model is implemented by the following technical solutions: the utility model proposes a power source body and cable connection strengthening structure, the structure of which includes a lower cover, an upper cover, and a wire overflow port, the lower cover is fixedly connected to the upper cover, and the upper cover is penetrated and equipped with a wire overflow port;

[0008] A limit block is also installed inside the upper cover, and the limit block is used for assembly limit of the wire overflow outlet;

[0009] The upper cover is composed of a shell, a first positioning strip, a second positioning strip, an assembly hole, an assembly plate, and a limiting protrusion. The shell is penetrated with an assembly hole, and the assembly hole is used for the assembly of the wire overflow port. An assembly plate is provided at the side of the shell where the assembly hole penetrates and is far away from the lower cover. A limiting protrusion is fixed on the assembly plate adjacent to the lower cover. The limiting protrusion is used for positioning and limiting when assembling the wire overflow port. The shell is penetrated with a first positioning strip and a second positioning strip on both sides of the assembly hole. The first positioning strip and the second positioning strip are both arranged perpendicular to the lower cover. The first positioning strip and the second positioning strip are used for plug-in assembly of the limiting block.

[0010] The wire overflow port is composed of a first limiting groove, a sealing ring, a second limiting groove, a reinforcement ring, a docking block, an assembly groove, an overflow port body, and a protective sleeve, the reinforcement ring is sleeved on the wire, the overflow port body is wrapped on the reinforcement ring, one side of the side end face of the overflow port body is mirror-imaged with two first limiting grooves and two second limiting grooves, a docking block is formed between the first limiting groove and the second limiting groove, an assembly groove is provided on one side of the side end face of the overflow port body perpendicular to the first limiting groove and the second limiting groove, the assembly groove is arranged along the direction of the wire, the assembly groove is used for docking with the limiting protrusion when the wire overflow port is assembled on the upper cover, a protective sleeve is fixed on the side of the overflow port body away from the first limiting groove, a sealing ring is inlaid and covered at the second limiting groove between the second limiting groove on the side end face of the overflow port body and the protective sleeve, the sealing ring is used for sealing the wire overflow port passing through the assembly hole, and the sealing ring is interference fit with the assembly hole;

[0011] The limit block includes a limit block body, a limit side block, a first card slot, a second card slot, a third card slot, a first docking slot, and a second docking slot. The first card slot and the third card slot are both U-shaped slots, and the second card slot is C-shaped. The slots of the first card slot, the second card slot, and the third card slot all pass through the same side of the limit block body. The second card slot is located between the first card slot and the third card slot. The recessed depth of the second card slot is greater than that of the first card slot and the third card slot. The first card slot and the third card slot are used for the limit block body to cover and sleeve the first limit slot and the second limit slot of the overflow outlet body. The second card slot is used for limiting The block body is covered and sleeved on the docking card block, and the first card slot and the third card slot are used to prevent the wire overflow outlet from rotating after assembly. The limit block body is perpendicular to the two side end faces where the first card slot passes through and is mirrored with a limit side block. A first docking groove is formed between the limit side block adjacent to the third card slot and the limit block body, and a second docking groove is formed between the limit side block adjacent to the first card slot and the limit block body. The limit side block is used to enter between the first positioning strip and the second positioning strip when the limit block body is assembled, and the first docking groove and the second docking groove are used for the limit side block to dock with the first positioning strip and the second positioning strip.

[0012] Furthermore, the second positioning strip is provided with an assembly slot, and the assembly slot is used for positioning and fixing the limiting side block after it enters between the first positioning strip and the second positioning strip.

[0013] Furthermore, a positioning block is fixed on the end of the limiting side block adjacent to the second positioning strip, and the positioning block is butted with the assembly slot.

[0014] Furthermore, a buffer groove is provided between the limit block body and the limit side block, so as to increase the buffering capacity of the limit block body and the limit side block.

[0015] Furthermore, the reinforcement ring consists of a main ring body and cotton thread. The main ring body is a T-shaped structure to increase the support surface of the reinforcement ring. The main ring body is first sleeved on the cotton thread and then sleeved on the wire. After the main ring body is sleeved on the cotton thread, a clamp is used to rivet out a hexagonal shape to facilitate the use of the tension of the internal cotton thread to achieve a reinforcement effect.

[0016] Furthermore, the main ring body is made of metal to enhance the strength of the wire overflow port, and the protruding side edge of the main ring body is embedded in the bottom of the docking block to improve the utilization rate of the main ring body strength.

[0017] Furthermore, the limit block is made of hard plastic and is used to share part of the impact pulling force.

[0018] Furthermore, the lower cover and the upper cover are fixed by ultrasonic welding technology, which avoids the space occupied by multiple screw columns in the screw fixing structure, and can effectively reduce the space occupancy rate of the upper and lower shell fixing structure.

[0019] Furthermore, an ultrasonic welding line and a pressing block are provided on the lower cover. The ultrasonic welding line is fixedly arranged around the side end face of the connection between the lower cover and the upper cover, and the pressing block is fixed on the side of the lower cover adjacent to the upper cover for pressing during the assembly of the limiting block.

[0020] Furthermore, the cross-section of the ultrasonic welding line is triangular, achieving the effect of sealing the main housing.

[0021] (III) Beneficial Effects

[0022] One of the above technical solutions has the following advantages or beneficial effects:

[0023] 1). To solve the problems in the prior art that when in use, for the common adapter housing during wire assembly, the wire overflow port is often directly fixed on the housing, or simply an I-shaped structure is provided on the wire overflow port to be clamped between the upper and lower covers for mechanical assembly. The direct fixing method is not convenient for maintenance and replacement. In the latter case, during use, since the overflow port is located between the upper and lower covers and only a simple I-shaped structure is used for fixing, it is easy to have assembly misalignment. At the same time, it also results in poor assembly sealing effect, insufficient tensile and impact resistance. The overflow port component is prone to deformation and detachment from the device after being subjected to thrust or tensile forces in different directions, with poor sealing stability, and it is also easy to cause damage to the connection between the wire and the device. By specifically providing an assembly hole on the upper cover for the assembly of the wire overflow port, and a positioning strip for limiting the limiting block is provided inside the upper cover, and the limiting block assembled with a pin. During assembly, the wire overflow port passes through the assembly hole, and after the limiting block wraps the wire overflow port, the pin is stably assembled on the upper cover. The independent design of the limiting block enables it to better fit tightly with the wire overflow port and the assembly part of the upper cover, forming better tightness, and can play a buffering role at the connection between the wire overflow port and the upper cover when the wire overflow port is stressed. Combined with the reinforcing ring of the wire overflow port, the wire overflow port can have better tensile and impact resistance after assembly, and can better prevent being pulled out of the assembly hole by forces in different directions. The sealing ring structure of the wire overflow port can further enhance its tightness during assembly, ensuring the safe use of the device. At the same time, the design of the C-shaped card slot of the limiting block, combined with the limiting slot of the wire overflow port, enables the wire overflow port to be better limited after assembly, preventing random rotation.

[0024] 2). To solve the problems in the prior art that the method of using screws to lock the upper and lower covers is not convenient for automated production, and at the same time, screw posts need to be left inside the housing, resulting in waste of space. By providing an ultrasonic welding line with a triangular cross-section in a whole circle at the connection between the lower cover and the upper cover, the device can save the internal occupied space of the screw posts. At the same time, the triangular ultrasonic welding line also enables the device to have better tightness during use, and can play a better role in impact resistance and assembly stability. Description of the Drawings

[0025] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0026] Figure 1 This is a schematic diagram of the assembly structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the utility model after assembly;

[0028] Figure 3 This is a schematic diagram of the internal structure of the utility model after removing the lower cover;

[0029] Figure 4 It is a structural schematic diagram of the upper cover of the utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the wire overflow outlet of the utility model being assembled on the wire;

[0031] Figure 6 This is a schematic diagram of the structure of the reinforcing ring of the utility model being assembled on the wire;

[0032] Figure 7 This is a schematic diagram of the structure of the limit block of the utility model;

[0033] Figure 8 It is a structural schematic diagram of the lower cover of the utility model;

[0034] Fig. 9 This is a schematic diagram of the structure of some ultrasonic welding lines of the utility model;

[0035] In the figure: lower cover -1, upper cover -2, wire overflow port -3, limit block -4, ultrasonic welding line -1a, top pressure block -1b, shell -2a, first positioning strip -2b, second positioning strip -2c, assembly hole -2d, assembly plate -2e, limit protrusion -2f, first limit groove -3a, sealing ring -3b, second limit groove -3c, reinforcement ring -3d, docking block -3e, assembly groove -3f, overflow port body -3g, protective cover -3h, limit block body -4a, limit side block -4b, first slot -4c, second slot -4d, third slot -4e, buffer slot -4f, first docking slot -4g, second docking slot -4h, positioning block -4i, assembly slot -2c1, main ring body -3d1, cotton thread -3d2. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.

[0037] The utility model provides a power source body and cable connection strengthening structure: the structure comprises a lower cover 1, an upper cover 2, and a wire overflow port 3, wherein the lower cover 1 is fixedly connected to the upper cover 2, and the upper cover 2 is penetrated and equipped with a wire overflow port 3;

[0038] The upper cover 2 is also equipped with a limit block 4, which is used to limit the assembly of the wire overflow port 3;

[0039] The upper cover 2 is composed of a shell 2a, a first positioning strip 2b, a second positioning strip 2c, an assembly hole 2d, an assembly plate 2e, and a limiting protrusion 2f. The shell 2a is penetrated with an assembly hole 2d, and the assembly hole 2d is used for the assembly of the wire overflow port 3. An assembly plate 2e is provided at the side of the shell 2a where the assembly hole 2d penetrates, away from the lower cover 1. The assembly plate 2e is fixed with a limiting protrusion 2f on the side adjacent to the lower cover 1. The limiting protrusion 2f is used for positioning and limiting the wire overflow port 3 during assembly. The shell 2a is penetrated by the assembly hole 2d on both sides thereof. The first positioning strip 2b and the second positioning strip 2c are both arranged perpendicular to the lower cover 1. The first positioning strip 2b and the second positioning strip 2c are used for the plug-in assembly of the limiting block 4.

[0040] The wire overflow port 3 is composed of a first limiting groove 3a, a sealing ring 3b, a second limiting groove 3c, a reinforcement ring 3d, a docking block 3e, an assembly groove 3f, an overflow port body 3g, and a protective sleeve 3h. The reinforcement ring 3d is sleeved on the wire, and the overflow port body 3g is wrapped on the reinforcement ring 3d. One side of the side end face of the overflow port body 3g is mirror-imaged with two of the first limiting grooves 3a and two of the second limiting grooves 3c. A docking block 3e is formed between the first limiting groove 3a and the second limiting groove 3c. The side end face of the overflow port body 3g is perpendicular to one side of the first limiting groove 3a and the second limiting groove 3c. There is an assembly groove 3f, which is arranged along the wire direction. The assembly groove 3f is used to dock with the limiting protrusion 2f when the wire overflow port 3 is assembled on the upper cover 2. A protective sleeve 3h is fixed to the side of the overflow port body 3g away from the first limiting groove 3a. A sealing ring 3b is embedded and covered between the second limiting groove 3c and the protective sleeve 3h on the side end face of the overflow port body 3g, adjacent to the second limiting groove 3c. The sealing ring 3b is used to seal the wire overflow port 3 passing through the assembly hole 2d. When the wire overflow port 3 is assembled, the sealing ring 3b is located in the assembly hole 2d, and the sealing ring 3b is interference fit with the assembly hole 2d.

[0041] The limit block 4 includes a limit block body 4a, a limit side block 4b, a first card slot 4c, a second card slot 4d, a third card slot 4e, a first docking slot 4g, and a second docking slot 4h. The first card slot 4c and the third card slot 4e are both U-shaped slots, and the second card slot 4d is C-shaped. The slots of the first card slot 4c, the second card slot 4d, and the third card slot 4e all pass through the same side of the limit block body 4a. The second card slot 4d is located between the first card slot 4c and the third card slot 4e. The recessed depth of the second card slot 4d is greater than that of the first card slot 4c and the third card slot 4e. The first card slot 4c and the third card slot 4e are used for the limit block body 4a to cover and sleeve the first limit slot 3a and the second limit slot 3c of the overflow outlet body 3g. The second card slot 4d is used The limiting block body 4a is covered and sleeved on the docking block 3e, the first slot 4c and the third slot 4e are used to prevent the wire overflow outlet 3 from rotating after assembly, the limiting block body 4a is perpendicular to the two side end faces where the first slot 4c passes through, and a limiting side block 4b is provided in a mirror image, a first docking slot 4g is formed between the limiting side block 4b adjacent to the third slot 4e side and the limiting block body 4a, a second docking slot 4h is formed between the limiting side block 4b adjacent to the first slot 4c side and the limiting block body 4a, the limiting side block 4b is used to enter between the first positioning strip 2b and the second positioning strip 2c when the limiting block body 4a is assembled, and the first docking slot 4g and the second docking slot 4h are used for the limiting side block 4b to dock with the first positioning strip 2b and the second positioning strip 2c.

[0042] The second positioning strip 2c is provided with an assembly slot 2c1, and the assembly slot 2c1 is used for positioning and fixing the limiting side block 4b after it enters between the first positioning strip 2b and the second positioning strip 2c.

[0043] A positioning block 4i is fixed on the end of the limiting side block 4b adjacent to the second positioning strip 2c, and the positioning block 4i is butted with the assembly slot 2c1.

[0044] Wherein, a buffer groove 4f is further provided between the limit block body 4a and the limit side block 4b, so as to increase the buffering capacity of the limit block body 4a and the limit side block 4b.

[0045] Among them, the reinforcing ring 3d is composed of a main ring body 3d1 and a cotton thread 3d2. The main ring body 3d1 is a T-shaped structure to increase the support surface of the reinforcing ring 3d. The main ring body 3d1 is first sleeved on the cotton thread 3d2 and then sleeved on the wire. After the main ring body 3d1 is sleeved on the cotton thread 3d2, a clamp is used to rivet out a hexagonal shape, which is convenient for utilizing the tension of the internal cotton thread 3d2 to play a reinforcing role.

[0046] Among them, the main ring body 3d1 is made of metal to strengthen the strength of the wire overflow port 3. The protruding side of the main ring body 3d1 is embedded in the bottom of the docking block 3e to improve the utilization rate of the strength of the main ring body 3d1. The single overflow port soft plastic structure cannot meet the requirements of dynamic impact after multiple modifications and verification tests. After adding the main ring body 3d1 made of metal, it runs with a tensile force of 156N / 1 minute and completes tests in three different directions of 0 degrees, 90 degrees, and 180 degrees; it meets the SR dynamic impact resistance of the product output line end and completes 30N / 60 times and 8.5N / 8030 times free fall impact tests.

[0047] The limit block 4 is made of hard plastic and is used to share part of the impact pulling force.

[0048] Among them, the lower cover 1 and the upper cover 2 are fixed by ultrasonic welding technology, which avoids the space occupied by multiple screw columns in the screw fixing structure, can effectively reduce the space occupancy rate of the upper and lower shell fixing structure, and can optimize the production process, which is economical, energy-saving and efficient.

[0049] Among them, the lower cover 1 is provided with an ultrasonic welding line 1a and a top pressure block 1b. The ultrasonic welding line 1a is fixed around the side end surface of the connection between the lower cover 1 and the upper cover 2. The top pressure block 1b is fixed to the side of the lower cover 1 adjacent to the upper cover 2. The top pressure block 1b is used for assembly and top pressure of the limit block 4.

[0050] Among them, the cross-section of the ultrasonic welding line 1a is a triangle, and the angles of the triangular slopes of the cross-section of the ultrasonic welding line 1a are 75 degrees and 53 degrees respectively, the outward side slope is 75 degrees, and the inward side slope is 53 degrees, so that the equipment can achieve a sealing effect and can better resist impact, meet 4KG / angle 33 degrees, side pendulum impact test, and meet 400N tensile test without cracking; finally, the product is drop-resistant and meets 180 free drop tests at different heights between 0.2 and 1.3 meters.

[0051] The wire overflow port 3 refers to a positioning buckle formed at the place where the wire is connected, such as the end of the plug, which can also be called SR. SR is the abbreviation of STRAINRELIEF, which means overflow port in Chinese.

[0052] Embodiment: When the device is assembled, first pass the wire overflow port 3 and the chip connection end through the assembly hole 2d of the upper cover 2. Then, the limiting block 4 can be sleeved on the wire overflow port 3 through the second card slot 4d of the limiting block 4. Next, align the limiting side block 4b of the limiting block 4 between the first positioning strip 2b and the second positioning strip 2c of the upper cover 2 for plug-in assembly. The independent design of the limiting block 4 enables it to fit more closely with the wire overflow port 3, the first positioning strip 2b, and the second positioning strip 2c, forming better tightness. When the wire overflow port 3 is subjected to forces in different directions, the force acts on the limiting block 4, and the limiting side block 4b of the limiting block 4 will be positioned and limited by the first positioning strip 2b and the second positioning strip 2c to prevent the limiting block 4 from moving. At the same time, the limiting block 4 made of hard plastic and the buffer groove 4f provided on the limiting block 4 can enable the limiting block 4 to play a better buffering role. Combined with the reinforcing ring 3d of the wire overflow port 3, the connection between the wire overflow port 3 and the limiting block 4 is also more stable, so that the wire overflow port 3 can have better tensile and impact resistance after assembly and can better prevent it from being pulled out of the assembly hole 2d by forces in different directions. The sealing ring 3b of the wire overflow port 3 will enter the assembly hole 2d after assembly to seal the assembly hole 2d, thereby further strengthening the tightness during device assembly and ensuring the use safety of the device. At the same time, when the wire overflow port 3 is inserted into the assembly hole 2d for assembly, it can be preliminarily limited and stabilized against rotation by aligning the assembly channel 3f with the limiting protrusion 2f. Then, after the limiting block 4 is assembled, the design of the U-shaped first card slot 4c and the third card slot 4e of the limiting block 4, combined with the first limiting slot 3a and the second limiting slot 3c of the wire overflow port, enables the wire overflow port 3 to obtain better rotational limitation after assembly, preventing random rotation and further ensuring the stability of the assembly. Moreover, after the limiting side block 4b of the limiting block 4 is inserted between the first positioning strip 2b and the second positioning strip 2c, the positioning card block 4i of the limiting side block 4b will enter the assembly card slot 2c1 for preliminary stabilization of the limiting block 4, preventing the limiting block 4 from sliding out randomly after assembly, resulting in poor tightness and unstable assembly. Combined with the pressing of the lower cover 1 after subsequent assembly, the limiting block 4 is assembled more stably, so that the wire overflow port 3 is assembled more stably;

[0053] Finally, when the lower cover 1 is assembled, the ultrasonic welding line 1a arranged in a circle around the lower cover 1 can, through its triangular cross-section structure, enable the lower cover 1 and the upper cover 2 to have better tightness after ultrasonic welding, and can also play a better role in resisting impact and assembly stability, eliminating the need for screw assembly posts, and saving the internal space of the lower cover 1 and the upper cover 2.

[0054] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0055] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0056] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0057] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A power source body and cable connection reinforcement structure, the structure comprising a lower cover (1), an upper cover (2), and a wire overflow port (3), the lower cover (1) being fixedly connected to the upper cover (2), and the upper cover (2) being provided with a wire overflow port (3); Features: A limit block (4) is also installed inside the upper cover (2), and the limit block (4) is used to limit the assembly of the wire overflow outlet (3); The upper cover (2) is composed of a shell (2a), a first positioning strip (2b), a second positioning strip (2c), an assembly hole (2d), an assembly plate (2e), and a limiting protrusion (2f); the shell (2a) is provided with an assembly hole (2d) through it; the assembly hole (2d) is used for assembling the wire overflow port (3); an assembly plate (2e) is provided at a portion of the shell (2a) where the assembly hole (2d) passes through it and is away from the lower cover (1); a limiting protrusion (2f) is fixed to a side of the assembly plate (2e) adjacent to the lower cover (1); the limiting protrusion (2f) is used for positioning and limiting the wire overflow port (3) during assembly; a first positioning strip (2b) and a second positioning strip (2c) are provided on both sides of a portion of the shell (2a) where the assembly hole (2d) passes through it; the first positioning strip (2b) and the second positioning strip (2c) are both arranged perpendicular to the lower cover (1); the first positioning strip (2b) and the second positioning strip (2c) are used for plugging and assembling the limiting block (4); The wire overflow port (3) is composed of a first limiting groove (3a), a sealing ring (3b), a second limiting groove (3c), a reinforcement ring (3d), a docking block (3e), an assembly groove (3f), an overflow port body (3g), and a protective sleeve (3h); the reinforcement ring (3d) is sleeved on the wire; the overflow port body (3g) is wrapped around the reinforcement ring (3d); one side end surface of the overflow port body (3g) is mirror-imaged with two of the first limiting grooves (3a) and two of the second limiting grooves (3c); a docking block (3e) is formed between the first limiting groove (3a) and the second limiting groove (3c); and the side end of the overflow port body (3g) is provided with a first limiting groove (3a) and a second limiting groove (3c). An assembly groove (3f) is provided on one side of the surface perpendicular to the first limiting groove (3a) and the second limiting groove (3c), the assembly groove (3f) being arranged along the direction of the wire, the assembly groove (3f) being used for docking with the limiting protrusion (2f) when the wire overflow port (3) is assembled on the upper cover (2), a protective sleeve (3h) is fixed on the side of the overflow port body (3g) away from the first limiting groove (3a), a sealing ring (3b) is embedded and coated between the second limiting groove (3c) and the protective sleeve (3h) on the side end face of the overflow port body (3g) adjacent to the second limiting groove (3c), and the sealing ring (3b) is used for sealing the wire overflow port (3) passing through the assembly hole (2d); The limit block (4) comprises a limit block body (4a), a limit side block (4b), a first card slot (4c), a second card slot (4d), a third card slot (4e), a first docking slot (4g), and a second docking slot (4h); the first card slot (4c) and the third card slot (4e) are both U-shaped slots; the second card slot (4d) is C-shaped; the slot openings of the first card slot (4c), the second card slot (4d), and the third card slot (4e) all pass through the same side of the limit block body (4a); the second card slot (4d) is located between the first card slot (4c) and the third card slot (4e); the recessed depth of the second card slot (4d) is greater than that of the first card slot (4c) and the third card slot (4e); the first card slot (4c) and the third card slot (4e) are used for the limit block body (4a) to cover and sleeve the first limit slot (3a) and the second limit slot (3c) of the overflow outlet body (3g); the second card slot (4 d) used for the limiting block body (4a) to cover and sleeve on the docking block (3e); the first clamping groove (4c) and the third clamping groove (4e) are used to prevent the wire overflow outlet (3) from rotating after assembly; the limiting block body (4a) is provided with limiting side blocks (4b) in a mirror image at two side end surfaces perpendicular to the first clamping groove (4c) penetrating therethrough; a first docking groove (4g) is formed between the limiting side block (4b) adjacent to the third clamping groove (4e) and the limiting block body (4a); a second docking groove (4h) is formed between the limiting side block (4b) adjacent to the first clamping groove (4c) and the limiting block body (4a); the limiting side block (4b) is used to enter between the first positioning strip (2b) and the second positioning strip (2c) when the limiting block body (4a) is assembled; the first docking groove (4g) and the second docking groove (4h) are used for the limiting side block (4b) to dock with the first positioning strip (2b) and the second positioning strip (2c).

2. The power source body and cable connection reinforcement structure according to claim 1, characterized in that: The second positioning strip (2c) is provided with an assembly slot (2c1), and the assembly slot (2c1) is used for positioning and fixing the limiting side block (4b) after it enters between the first positioning strip (2b) and the second positioning strip (2c).

3. The power source body and cable connection reinforcement structure according to claim 2, characterized in that: A positioning block (4i) is fixed on the end of the limiting side block (4b) adjacent to the second positioning strip (2c), and the positioning block (4i) is butted with the assembly slot (2c1).

4. The power source body and cable connection reinforcement structure according to claim 1, characterized in that: A buffer groove (4f) is also provided between the limiting block main body (4a) and the limiting side block (4b).

5. The power source body and cable connection reinforcement structure according to claim 1, characterized in that: The reinforcing ring (3d) comprises a main ring body (3d1) and a cotton thread (3d2); the main ring body (3d1) is a T-shaped structure; the main ring body (3d1) is first sleeved onto the cotton thread (3d2) and then sleeved onto the wire material.

6. The power source body and cable connection reinforcement structure according to claim 5, characterized in that: The main ring body (3d1) is made of metal, and the protruding side edge of the main ring body (3d1) is inlaid on the bottom of the docking block (3e).

7. The power source body and cable connection reinforcement structure according to claim 1, characterized in that: The limit block (4) is made of hard plastic.

8. The power source body and cable connection reinforcement structure according to claim 1, characterized in that: The lower cover (1) and the upper cover (2) are fixed by using an ultrasonic welding process.

9. The power source body and cable connection reinforcement structure according to claim 1, characterized in that: The lower cover (1) is provided with an ultrasonic welding line (1a) and a pressing block (1b); the ultrasonic welding line (1a) is fixed around the side end surface of the connection between the lower cover (1) and the upper cover (2); the pressing block (1b) is fixed to the side of the lower cover (1) adjacent to the upper cover (2); the pressing block (1b) is used for assembling and pressing the limit block (4).

10. The power source body and cable connection reinforcement structure according to claim 9, characterized in that: The cross section of the ultrasonic welding line (1a) is a triangle.

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