A structurally reliable battery case

By precisely positioning and securely installing the positive and negative terminals of the battery box, the problem of easy displacement of the terminals under vibration or bumps is solved, thereby improving the stability of current transmission and the safety of the battery box in complex environments.

CN224318593UActive Publication Date: 2026-06-02ZHEJIANG HONGMEN ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HONGMEN ELECTRONICS CO LTD
Filing Date
2025-04-29
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The positive and negative terminals of the existing battery box are prone to displacement under external forces such as vibration or bumps, resulting in poor contact and affecting the stability and reliability of the power system.

Method used

The positive and negative terminals are precisely positioned using a first and second limiting mechanism. Combined with the structural design of positioning rails, positioning ribs, inclined locking blocks, and positioning columns, the terminals are securely installed in the base. The connection is further strengthened by the elastic design of the conductive sheet and the precise connection between the top cover and the base.

Benefits of technology

It effectively reduces poor contact caused by terminal displacement, improves the stability and reliability of current transmission, reduces the probability of equipment failure, extends the service life of the battery box, and ensures the safe and stable operation of the battery box in complex environments.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model belongs to the battery box technical field, concretely is a kind of reliable battery box of structure, including base, upper cover, base is equipped with positive terminal and negative terminal, both are accurately positioned by first limiting mechanism, second limiting mechanism, effectively resist vibration and other external force, reduce bad contact, reduce equipment failure probability, guarantee current stable transmission, improve electrical system performance and reliability, prolong the service life of battery box, base and upper cover are primarily positioned by positioning gap, positioning boss, lock ear, lock hole cooperation and arc bevel guide locking, enhance the firmness of connection, protect battery and internal circuit, ensure that battery box is safely and stably operated under complex environment, the structural design of the utility model effectively solves many problems such as the poor stability of traditional battery box.
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Description

Technical Field

[0001] This utility model belongs to the field of battery box technology, specifically a battery box with a reliable structure. Background Technology

[0002] Battery boxes are common devices that hold batteries and ensure power supply to equipment. They are mostly made of plastic or metal and are commonly found in devices such as flashlights and remote controls. They come in various types depending on the type of battery and how they are used. Although they have a simple structure, they are of great significance to the stable operation of equipment.

[0003] The existing battery box mainly consists of the following parts: box body, battery contact plates, springs, cover, etc. Its working principle is: when the battery is put into the battery box, under the action of spring pressure, the positive and negative terminals of the battery make good contact with the contact plates, forming a closed circuit. When the external device is connected to the battery box, the chemical energy of the battery is converted into electrical energy, which is transmitted to the device through the contact plates and connecting lines to power the device.

[0004] The existing battery boxes have the following drawbacks: the positioning and installation structure of the positive and negative terminals of traditional battery boxes is not perfect. When subjected to external forces such as vibration and bumps, they are prone to displacement, resulting in poor contact with the positive terminal of the battery and reducing the stability and reliability of the power system. Therefore, a battery box with a reliable structure is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing battery boxes, a structurally reliable battery box is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The battery box with a reliable structure according to this utility model includes a base and a top cover. A positive terminal and a negative terminal are assembled inside the base. A handle is provided on the top cover. The positive terminal includes a first conductive sheet, and a contact is provided on one side of the first conductive sheet. The negative terminal includes a second conductive sheet, and an extended conductive sheet is provided at the bottom end of the second conductive sheet. A conductive spring is assembled on one side of the second conductive sheet. A connection port connected to the positive terminal and the negative terminal is provided at the bottom end of the base. A first limiting mechanism and a second limiting mechanism are provided inside the base to limit the positive terminal and the negative terminal respectively.

[0007] Preferably, the positive terminal includes a first conductive sheet, a third conductive sheet is obliquely disposed on one side of the first conductive sheet through a slot, and a contact is disposed on one side of the third conductive sheet.

[0008] Preferably, the first limiting mechanism includes a first positioning track fixedly disposed on one side of the inner wall of the base and cooperating with the first conductive sheet. The track groove of the first positioning track is a convex groove. The inner wall of the first positioning track is provided with a positioning rib. A slot cooperating with the first conductive sheet is opened on one side of the positioning rib.

[0009] Preferably, both the entrances to the first positioning track and the positioning rib are provided with ramps.

[0010] Preferably, the second limiting mechanism includes a second positioning track that cooperates with the second conductive sheet, and a slanted locking block is provided at the top of the second positioning track, the slanted locking block acting on the top of the second conductive sheet.

[0011] Preferably, a positioning post is provided at the bottom inner end of the base, a positioning hole is provided on the extended conductive sheet to cooperate with the positioning post, and a positioning rail is provided at the bottom inner end of the base to cooperate with the extended conductive sheet.

[0012] Preferably, the top of the base is provided with a positioning notch, and the bottom of the top cover is provided with a positioning protrusion that matches the positioning notch.

[0013] Preferably, the top of the base is provided with a lock lug, the lock lug is provided with an arc-shaped bevel, and the top cover is provided with a lock hole that matches the lock lug.

[0014] Preferably, a positive indicator and a negative indicator are respectively provided in the base at the positive terminal and the negative terminal.

[0015] Preferably, the base has a support block at its bottom for supporting the battery, and the inner side of the support block has an arc surface that fits the circumference of the battery.

[0016] The beneficial effects of this utility model are:

[0017] 1. Through the convex first positioning track, positioning rib slot and inclined bevel design of the first limiting mechanism, and the second positioning track and inclined locking block of the second limiting mechanism, in conjunction with the positioning column, positioning hole and positioning rail, the positive and negative terminals are accurately positioned and stably installed in the base. This effectively resists external forces such as vibration, greatly reduces poor contact caused by terminal displacement, reduces the probability of equipment failure, ensures stable and reliable current transmission, provides stable power to external equipment, significantly improves the performance and reliability of the power system, and extends the service life of the battery box itself.

[0018] 2. In terms of the overall structure of the battery box, the base and the top cover are precisely initially positioned through positioning notches and positioning protrusions. The locking lugs and locking holes cooperate, and the arc-shaped bevel on the locking lugs guides and deforms to lock, which greatly enhances the connection between the two, protects the battery and internal circuits in all aspects, and ensures that the battery box operates safely and stably in various complex usage environments. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a structural diagram of the base, positive terminal, and first limiting mechanism of this utility model;

[0021] Figure 2 This is a top view of the base of this utility model;

[0022] Figure 3 This is a cross-sectional view of the base according to Embodiment 1 of this utility model;

[0023] Figure 4 This is a cross-sectional view of the base according to Embodiment 2 of this utility model;

[0024] Figure 5 This is a structural diagram of the base and top cover of this utility model;

[0025] Figure 6 This is an exploded view of the structure of the base, positive terminal, and negative terminal of this utility model;

[0026] Legend:

[0027] 1. Base; 2. Top cover; 3. Positive terminal; 301. First conductive piece; 302. Contact; 303. Third conductive piece; 4. Negative terminal; 401. Second conductive piece; 402. Extended conductive piece; 403. Conductive spring; 5. Connection port; 6. First limiting mechanism; 601. First positioning track; 602. Positioning rib; 603. Slot; 7. Second limiting mechanism; 701. Second positioning track; 702. Angled locking block; 8. Positioning post; 9. Positioning hole; 10. Positioning rail; 11. Positioning notch; 12. Positioning protrusion; 13. Locking lug; 14. Locking hole; 15. Handle; 16. Positive indicator; 17. Negative indicator; 18. Support block; 19. Arc-shaped bevel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Specific implementation examples are given below.

[0030] Example 1: Please refer to Figures 1-3 , Figures 5-6The present invention discloses a reliable battery box, comprising a base 1 and a top cover 2. A positive terminal 3 and a negative terminal 4 are assembled inside the base 1. A handle 15 is provided on the top cover 2. The positive terminal 3 includes a first conductive sheet 301, with a contact 302 on one side of the first conductive sheet 301. The negative terminal 4 includes a second conductive sheet 401, with an extension conductive sheet 402 at the bottom end of the second conductive sheet 401. A conductive spring 403 is assembled on one side of the second conductive sheet 401. A connection port 5 for connecting the positive terminal 3 and the negative terminal 4 is provided at the bottom end of the base 1. The base 1 contains... A first limiting mechanism 6 and a second limiting mechanism 7 are provided to limit the positive terminal 3 and the negative terminal 4, respectively. The first limiting mechanism 6 includes a first positioning track 601 fixedly disposed on one side of the inner wall of the base 1 and cooperating with the first conductive sheet 301. The track groove of the first positioning track 601 is a convex groove. The inner wall of the first positioning track 601 is provided with a positioning rib 602. A slot 603 cooperating with the first conductive sheet 301 is opened on one side of the positioning rib 602. The entrances of the first positioning track 601 and the positioning rib 602 are both provided with a ramp. The second limiting mechanism 7 includes a mechanism that cooperates with the second conductive sheet 401. The second positioning track 701 is assembled, and a slanted locking block 702 is provided at the top of the second positioning track 701. The slanted locking block 702 acts on the top of the second conductive sheet 401. A positioning post 8 is provided at the bottom of the inner interior of the base 1. A positioning hole 9 is provided on the extended conductive sheet 402 to cooperate with the positioning post 8. A positioning rail 10 is provided at the bottom of the inner interior of the base 1 to cooperate with the extended conductive sheet 402. During operation, when the battery box is assembled, the positive terminal 3 is accurately positioned and stably installed through the first limiting mechanism 6. The first positioning track 601 is fixed to one side of the inner wall of the base 1, and its convex track groove is connected to the top of the first conductive sheet 301. 1. The first conductive piece 301 can only slide along the convex groove trajectory when it is installed and inserted, limiting displacement in other directions and ensuring installation accuracy. The positioning rib 602 on the inner wall of the first positioning track 601 has a slot 603 on one side that precisely matches the first conductive piece 301. When the first conductive piece 301 is installed in place along the track groove, the slot 603 tightly holds it in place, preventing displacement caused by external forces such as vibration and shaking. In addition, the entrances of the first positioning track 601 and the positioning rib 602 are both provided with sloping openings, which make it easy for the first conductive piece 301 to slide into the first positioning track 601 and the slot 603 during installation, reducing installation difficulty and improving assembly efficiency.

[0031] Then, the negative terminal 4 is installed. The second limiting mechanism 7 positions and fixes the negative terminal 4. The second positioning rail 701 cooperates with the second conductive piece 401 to limit the displacement of the second conductive piece 401 from the side. The inclined locking block 702 is located at the top of the second positioning rail 701. When the second conductive piece 401 is inserted downward into the second positioning rail 701, the inclined locking block 702 is opened by the second conductive piece 401. The second conductive piece 401 continues to be inserted. When it is completely inserted into the second positioning rail 701, the inclined locking block 702 rebounds and locks the top of the second conductive piece 401, firmly fixing it in the predetermined position, enhancing the installation stability of the negative terminal 4. In addition, the positioning post 8 at the bottom of the base 1 cooperates with the positioning hole 9 on the extended conductive piece 402 to ensure the accurate position of the extended conductive piece 402 and provide a guarantee for its stability. At the same time, the positioning rail 10 wraps around both sides of the extended conductive piece 402 and limits it from another direction to prevent the extended conductive piece 402 from shifting during use.

[0032] The connection port 5 at the bottom of the base 1 serves as the interface for connecting the battery box to the circuit of external electrical equipment. The electrical energy generated by the battery in the battery box is transmitted to the external electrical equipment through this port to power its normal operation.

[0033] The first limiting mechanism 6 and the second limiting mechanism 7 are set on the inner wall of the base 1, which simultaneously improves the overall stability of the base 1 structure and also acts as a reinforcing rib.

[0034] Through the structural design of this utility model, the positive terminal 3 and the negative terminal 4 can be accurately positioned and stably installed inside the battery box. This stability is crucial for ensuring the normal operation of the battery box in various complex operating environments, ensuring that the positive and negative terminals always maintain good contact with the battery, guaranteeing the stability and reliability of current transmission, greatly reducing the probability of equipment failure caused by poor contact, providing a more stable and reliable power supply for external electrical equipment, thereby improving the performance and reliability of the entire power system.

[0035] Example 2: Please refer to Figures 4-5The positive terminal 3 includes a first conductive sheet 301, and a third conductive sheet 303 is obliquely disposed on one side of the first conductive sheet 301 through a slot. A contact 302 is disposed on one side of the third conductive sheet 303. During operation, based on Embodiment 1, the third conductive sheet 303, obliquely disposed on one side of the first conductive sheet 301 through a slot, allows the positive terminal of the battery to contact the contact 302 first when the battery is inserted into the battery case. Due to the oblique arrangement of the third conductive sheet 303 and its elastic properties similar to a spring, the third conductive sheet 303 begins to deform under the pressure of the positive terminal of the battery. During this deformation process, the third conductive sheet 303, like a compressed spring, stores elastic potential energy. As the battery installation is completed, the third conductive sheet 303... The elastic potential energy stored in 03 generates a reaction force, which continuously pushes the third conductive sheet 303, thereby causing the contact 302 to always be in close contact with the positive terminal of the battery and apply a certain pressure. During current conduction, the current from the positive terminal of the battery is introduced into the third conductive sheet 303 through the contact 302, and then transmitted to the first conductive sheet 301 through the connection between the third conductive sheet 303 and the first conductive sheet 301, and finally integrated into the overall circuit of the battery box to power external devices. In this embodiment, the third conductive sheet 303, with its continuous elastic reaction force, can adapt to the slight changes in the position of the battery, always maintaining the contact 302 in close contact with the positive terminal of the battery, ensuring stable current transmission, and greatly reducing the risk of power outages caused by vibration, etc.

[0036] Furthermore, the base 1 has a positioning notch 11 at its top, and the top cover 2 has a positioning protrusion 12 at its bottom that mates with the positioning notch 11. The top of the base 1 has a mirror-image locking lug 13 with an arc-shaped bevel 19. The top cover 2 has a locking hole 14 that mates with the locking lug 13. During operation, when assembling the battery box, first align the positioning protrusion 12 of the top cover 2 with the positioning notch 11 at the top of the base 1, then slowly lower the top cover 2. Because the positioning notch 11 and the positioning protrusion 12 are precisely matched in shape and size, the positioning protrusion 12 can accurately embed into the positioning notch 11, achieving initial horizontal positioning of the top cover 2 and the base 1. This ensures that the top cover 2 does not shift or misalign during installation, laying an accurate foundation for subsequent connections. Meanwhile, during the installation of the upper cover 2, the arc-shaped bevel 19 on the locking lug 13 acts as a guide. As the positioning protrusion 12 is inserted into the positioning notch 11, the upper cover 2 continues to move downward. The arc-shaped bevel 19 on the locking lug 13 gradually aligns with the locking hole 14 on the upper cover 2. The locking hole 14 contacts the arc-shaped bevel 19 and squeezes it, causing the locking lug 13 to deform. After the locking lug 13 is fully inserted into the locking hole 14, the locking lug 13 rebounds and forms a mechanical lock with the locking hole 14, firmly fixing the upper cover 2 to the base 1. Through the cooperation of the connection structure between the upper cover 2 and the base 1, the firmness of the connection between the upper cover 2 and the base 1 is further enhanced, effectively protecting the battery and the internal circuit structure, and ensuring that the battery box can work safely and stably in various usage environments.

[0037] Furthermore, a positive terminal indicator 16 and a negative terminal indicator 17 are respectively provided at the positive terminal 3 and the negative terminal 4 inside the base 1. During operation, the positive terminal indicator 16 and the negative terminal indicator 17 clearly indicate the positive and negative terminal positions inside the battery box to the user through intuitive marking. The purpose is to enable the user to quickly and accurately determine the positive and negative terminal orientation of the battery when installing the battery, and to correctly install the battery in the battery box, which can effectively reduce the risk of incorrect battery installation.

[0038] Furthermore, the base 1 has a support block 18 at its bottom for supporting the battery. The inner side of the support block 18 has an arc surface that fits the circumference of the battery. During operation, when the battery is placed in the battery box, its bottom first contacts the arc surface of the support block 18. Because the arc surface matches the circumference of the battery, the support block 18 provides good support and positioning for the battery, ensuring that the positive and negative terminals of the battery maintain good contact with the positive terminal 3 and the negative terminal 4, so that the current can be smoothly transmitted from the battery to the battery box circuit. In addition, the arc surface design restricts the lateral movement of the battery in the battery box, preventing the battery from shaking and making poor contact with the terminals, further ensuring the normal operation of the battery box in various complex usage environments.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A structurally reliable battery box, characterized in that: The device includes a base (1) and a top cover (2). The base (1) is equipped with a positive terminal (3) and a negative terminal (4). The top cover (2) is provided with a handle (15). The positive terminal (3) includes a first conductive sheet (301). A contact point (302) is provided on one side of the first conductive sheet (301). The negative terminal (4) includes a second conductive sheet (401). An extension conductive sheet (402) is provided at the bottom end of the second conductive sheet (401). A conductive spring (403) is installed on one side of the second conductive sheet (401). A connection port (5) is provided at the bottom end of the base (1) to connect with the positive terminal (3) and the negative terminal (4). The base (1) is provided with a first limiting mechanism (6) and a second limiting mechanism (7) to limit the positive terminal (3) and the negative terminal (4) respectively.

2. The battery box with a reliable structure according to claim 1, characterized in that: A third conductive sheet (303) is obliquely disposed on one side of the first conductive sheet (301) through a slot, and a contact (302) is disposed on one side of the third conductive sheet (303).

3. A structurally reliable battery box according to claim 1, characterized in that: The first limiting mechanism (6) includes a first positioning track (601) fixedly disposed on one side of the inner wall of the base (1) and cooperating with the first conductive sheet (301). The track groove of the first positioning track (601) is a convex groove. The inner wall of the first positioning track (601) is provided with a positioning rib (602). A slot (603) cooperating with the first conductive sheet (301) is opened on one side of the positioning rib (602).

4. A battery box with a reliable structure according to claim 3, characterized in that: Both the first positioning track (601) and the positioning rib (602) have ramps at their entrances.

5. A structurally reliable battery box according to claim 1, characterized in that: The second limiting mechanism (7) includes a second positioning track (701) that cooperates with the second conductive sheet (401). The top end of the second positioning track (701) is provided with a slanted locking block (702), which acts on the top end of the second conductive sheet (401).

6. A structurally reliable battery box according to claim 1, characterized in that: The base (1) has a positioning post (8) at its inner bottom end, and the extended conductive sheet (402) has a positioning hole (9) that cooperates with the positioning post (8). The base (1) has a positioning rail (10) that cooperates with the extended conductive sheet (402) at its inner bottom end.

7. A structurally reliable battery box according to claim 1, characterized in that: The base (1) has a positioning notch (11) at its top and the top cover (2) has a positioning protrusion (12) at its bottom that matches the positioning notch (11).

8. A structurally reliable battery box according to claim 1, characterized in that: The top of the base (1) is provided with a lock lug (13) with an arc-shaped bevel (19) on the lock lug (13) and a lock hole (14) that matches the lock lug (13) on the top cover (2).

9. A structurally reliable battery box according to claim 1, characterized in that: The base (1) is provided with a positive terminal indicator (16) and a negative terminal indicator (17) at the positive terminal (3) and the negative terminal (4) respectively.

10. A structurally reliable battery box according to claim 1, characterized in that: The base (1) has a support block (18) at its bottom inside for supporting the battery. The inner side of the support block (18) has an arc surface that fits the circumference of the battery.