Battery compartment structure and electric equipment
By using an integrated mounting bracket to centrally arrange built-in and external batteries in electrical equipment, and utilizing methods such as elastic clamping and interference fit, the problem of large space occupation of the battery compartment structure is solved, achieving lightweight design and convenient battery replacement, thus improving the user experience.
Patent Information
- Application Number
- CN202520273227.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing electrical equipment has a large space-consuming battery compartment structure with separate internal and external batteries, which cannot meet the requirements of lightweight design.
The integrated mounting bracket houses both the internal and external batteries. The batteries are secured using elastic clamping and interference fit methods through parallel inner and outer battery compartments. Combined with battery straps and protective covers, this design ensures stable installation and removal of the batteries.
This design achieves a compact battery compartment structure with a small footprint, which facilitates lightweight design, reduces costs, improves user experience, and ensures stable battery power supply and easy battery replacement.
Smart Images

Figure CN223898486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment technology, and in particular to a battery compartment structure and electrical equipment. Background Technology
[0002] With the advancement of technology, battery life has become a key factor limiting the user experience of electronic devices. To achieve long battery life, using both built-in and external batteries is a common power management strategy, especially prevalent in devices such as drones and electric bicycles. Built-in and external batteries can be used in parallel to provide power simultaneously, extending the overall battery life. They can also be switched between each other to meet different power needs.
[0003] However, for ease of maintenance, existing electrical equipment typically has two battery compartment structures, one for storing the internal battery and the other for storing the external battery, ensuring that the two batteries are staggered. The two battery compartment structures occupy a significant amount of space, which is detrimental to achieving lightweight design in electrical equipment. Utility Model Content
[0004] The purpose of this utility model is to provide a battery compartment structure and electrical equipment, in which the external battery and the internal battery are centrally mounted on the mounting frame, which solves the technical problem that the existing battery compartment structure cannot meet the requirements of lightweight design due to the independent setting of the external battery and the internal battery.
[0005] To achieve the above objectives, this utility model provides a battery compartment structure, including a mounting frame. The mounting frame includes an integrally connected outer frame and an inner frame. An outer battery compartment is formed at the center of the outer frame, which is used to install an external battery. An inner battery compartment is formed at the center of the inner frame, and an internal battery is fixedly installed inside the inner battery compartment. The center lines of the inner battery compartment and the outer battery compartment are parallel to each other.
[0006] In some embodiments, a positive electrode spring and a negative electrode spring are fixed at both ends of the external battery compartment, and the external battery abuts between the positive electrode spring and the negative electrode spring.
[0007] In some embodiments, one end of the inner frame is provided with an end opening and the other end is fixed with a stop plate. The end opening is used for inserting the built-in battery into the inner battery compartment; the stop plate is used to define the position of the built-in battery in the inner battery compartment.
[0008] In some embodiments, the built-in battery is fixed to the inner battery compartment by interference fitting or adhesive dispensing.
[0009] In some embodiments, the outer frame has a side opening on the side away from the inner frame, which is used to allow an external battery to be installed in the outer battery compartment.
[0010] In some embodiments, a battery pull strap is fixed inside the external battery compartment to assist in removing the external battery.
[0011] In some embodiments, a power board is also included, with a support column fixed to one end of the mounting bracket, and the power board is locked and fixed to the support column by locking screws.
[0012] In some embodiments, the two ends of the outer battery compartment are respectively provided with a positive electrode slot and a negative electrode slot, the positive electrode spring is interference-fitted with the positive electrode slot, and the negative electrode spring is interference-fitted with the negative electrode slot.
[0013] In some embodiments, the device further includes an outer casing fitted over the mounting bracket; the outer casing has a mounting hole opposite to the side opening; the mounting hole is detachably fitted with a protective cover for covering the side opening.
[0014] This utility model also provides an electrical device, including the above-mentioned battery compartment structure.
[0015] Compared with the prior art, the present invention optimizes the battery compartment structure. The optimized battery compartment structure includes a mounting frame, which centrally forms an inner battery compartment and an outer battery compartment. The inner battery compartment is used to accommodate the built-in battery, and the outer battery compartment is used to accommodate the external battery. This allows the built-in battery and the external battery to be centrally mounted on the mounting frame, eliminating the need for separate mounting. The structure is more compact, occupies less space, and is conducive to achieving lightweight design. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0017] Figure 1 This is an exploded view of the battery compartment structure provided in an embodiment of the present utility model;
[0018] Figure 2 for Figure 1 Assembly diagram of the mounting bracket, built-in battery, and external battery;
[0019] Figure 3 This is a cross-sectional view of the battery compartment structure provided in an embodiment of the present utility model;
[0020] The attached figures are labeled as follows:
[0021] Mounting bracket 1, external battery 2, internal battery 3, battery pull strap 4, power board 5, outer casing 6 and protective cover 7;
[0022] Outer frame 11, inner frame 12 and support column 13;
[0023] External battery compartment 110, positive electrode spring 111, negative electrode spring 112 and side opening 113;
[0024] Internal battery compartment 120, end opening 121 and stop plate 122;
[0025] Disassembly / removal hole 61. Detailed Implementation
[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] This utility model discloses a battery compartment structure, as shown in the attached figure. Figure 1 and 2 As shown, the mounting frame 1 includes an integrally connected outer frame 11 and inner frame 12. The outer frame 11 is semi-cylindrical, with an outer battery compartment 110 formed at its center for housing an external battery 2. The inner frame 12 is cylindrical, with an inner battery compartment 120 formed at its center for housing a built-in battery 3. The centerlines of the inner battery compartment 120 and the outer battery compartment 110 are parallel to each other. By optimizing the structure of the mounting frame 1, the external battery 2 and the built-in battery 3 are arranged in parallel, resulting in a more compact arrangement and a smaller footprint.
[0029] The mounting bracket 1 comprises an external battery compartment 110 and an internal battery compartment 120, which are independent of each other. It should be noted that the mounting bracket 1 is made of insulating material, and the external battery 2 and the internal battery 3 can be two different types of batteries. The external battery 2 can be a replaceable dry cell battery, and the internal battery 3 can be a lithium battery that can be charged and discharged for a long time.
[0030] This invention optimizes the battery compartment structure, allowing the external battery 2 and the internal battery 3 to be centrally mounted on the mounting bracket 1, eliminating the need for a separate mounting bracket 1. This results in a more compact structure, occupies less space, and facilitates lightweight design. Furthermore, it reduces material consumption, contributing to lower costs.
[0031] Because the external battery 2 and the internal battery 3 are of different types, the battery fixing methods of the external battery compartment 110 and the internal battery compartment 120 are naturally also different. (See attached...) Figure 1 and 2 As shown, the external battery compartment 110 uses an elastic clamping method to fix the external battery 2. Specifically, a positive electrode spring 111 and a negative electrode spring 112 are fixed at both ends of the external battery compartment 110, respectively. The external battery 2 abuts between the positive electrode spring 111 and the negative electrode spring 112, and both ends of the external battery 2 are electrically connected to the power board 5 through the positive electrode spring 111 and the negative electrode spring 112, respectively. The internal battery compartment 120 uses a direct fixing method to fix the internal battery 3. Specifically, the internal battery 3 is fixed inside the internal battery compartment 120 by interference fit or adhesive application. Of course, the battery fixing methods of the external battery compartment 110 and the internal battery compartment 120 are not limited to this.
[0032] As a preferred embodiment, as shown in the appendix Figure 1 As shown, the built-in battery 3 adopts an end-insertion design. One end of the inner frame 12 has an end opening 121, and the other end is fixed with a stop plate 122. The end opening 121 is used for inserting the built-in battery 3 into the inner battery compartment 120, making it easier to install the built-in battery 3. The stop plate 122 abuts against the end of the built-in battery 3 to limit the position of the built-in battery 3 in the inner battery compartment 120, preventing the built-in battery 3 from becoming loose, ensuring that the built-in battery 3 is firmly fixed, reducing the risk of power failure due to improper installation of the built-in battery 3, resulting in a lower failure rate and a better user experience.
[0033] As a preferred embodiment, as shown in the appendix Figure 2 As shown, the external battery 2 is installed and removed from the side. The outer frame 11 has a side opening 113 on the side away from the inner frame 12. This side opening 113 allows the external battery 2 to be installed into the external battery compartment 110, facilitating both installation and removal of the external battery 2 while ensuring that the installation paths of the external battery 2 and the internal battery 3 do not interfere with each other. The length of the side opening 113 is greater than the length of the external battery 2, ensuring convenient installation and removal of the external battery 2.
[0034] As attached Figure 1 and 2As shown, a battery pull strap 4 is fixed inside the external battery compartment 110. The battery pull strap 4 is used to assist in removing the external battery 2. The battery pull strap 4 is a flexible strap, with one end fixedly installed. When the external battery 2 is installed, the battery pull strap 4 is pressed between the external battery 2 and the external battery compartment 110, ensuring that one end of the battery pull strap 4 extends outside the external battery compartment 110. To remove the external battery 2, simply pull the battery pull strap 4. The battery pull strap 4 lifts the external battery 2, and the external battery 2 detaches from the external battery compartment 110. There is no need to use your fingers to pry out the external battery 2, making it easy to remove and providing a better user experience. It should be noted that, considering the thickness of the battery strap 4, the side wall of the outer battery compartment 110 is provided with a receiving groove to accommodate the battery strap 4. This prevents the outer battery 2 from not fitting snugly against the inner side wall of the outer battery compartment 110, which would result in the outer battery 2 not being securely installed. This ensures that both ends of the outer battery 2 make good contact with the positive electrode spring 111 and the negative electrode spring 112, respectively, making the power supply of the outer battery 2 more stable and further improving the user experience.
[0035] As attached Figure 1 and 3 As shown, the battery compartment structure also includes a power board 5. Several support columns 13 are fixed to one end of the mounting bracket 1. The power board 5 is secured to the support columns 13 by locking screws. This ensures the power board 5 is reliably fixed and also provides sufficient space between the end of the mounting bracket 1 and the power board 5 to accommodate electronic components on the power board 5. Specifically, the power board 5 is fixed to the end of the mounting bracket 1 near the negative electrode spring 112.
[0036] As a preferred embodiment, as shown in the appendix Figure 2 As shown, the outer battery compartment 110 has a positive electrode slot and a negative electrode slot at both ends. The positive electrode spring 111 is interference-fitted with the positive electrode slot, and the negative electrode spring 112 is interference-fitted with the negative electrode slot. This ensures that the positive electrode spring 111 and the negative electrode spring 112 are reliably fixed, and simplifies the installation steps of the positive electrode spring 111 and the negative electrode spring 112, thereby reducing assembly costs.
[0037] As attached Figure 1 and 3As shown, the battery compartment structure also includes an outer shell 6, which is fitted over the mounting bracket 1. The outer shell 6 has a disassembly hole 61, which faces the side opening 113, facilitating the removal and installation of the external battery 2 inside the external battery compartment 110. A protective cover 7, which covers the side opening 113, can be detachably installed through the disassembly hole 61 to prevent the external battery 2 from detaching from the external battery compartment 110 due to impact, ensuring stable power supply from the external battery 2 and facilitating easy and flexible replacement of the external battery 2. It should be noted that an arc groove can be provided on the side of the protective cover 7 near the external battery 2, which matches the outer surface of the external battery 2, increasing the contact area between the protective cover 7 and the external battery 2 and reducing the risk of poor contact. Both the outer shell 6 and the protective cover 7 are insulating components to prevent leakage faults.
[0038] This utility model embodiment also discloses an electrical device, including the above-described battery compartment structure, which has the same beneficial effects. The electrical device can be a drone, a laptop, etc.
[0039] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0040] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A battery compartment structure, characterized in that, The device includes a mounting frame (1), which includes an integrally connected outer frame (11) and an inner frame (12). An outer battery compartment (110) is formed at the center of the outer frame (11), and the outer battery compartment (110) is used to install an external battery (2). An inner battery compartment (120) is formed at the center of the inner frame (120), and an internal battery (3) is fixed inside the inner battery compartment (120). The center lines of the inner battery compartment (120) and the outer battery compartment (110) are parallel to each other.
2. The battery compartment structure according to claim 1, characterized in that, The two ends of the external battery compartment (110) are respectively fixed with a positive electrode spring (111) and a negative electrode spring (112), and the external battery (2) abuts between the positive electrode spring (111) and the negative electrode spring (112).
3. The battery compartment structure according to claim 1, characterized in that, One end of the inner frame (12) is provided with an end opening (121) and the other end is fixed with a stop plate (122). The end opening (121) is used for inserting the built-in battery (3) into the inner battery compartment (120). The stop plate (122) is used to limit the position of the built-in battery (3) in the inner battery compartment (120).
4. The battery compartment structure according to claim 1, characterized in that, The built-in battery (3) is fixed in the inner battery compartment (120) by interference or dispensing.
5. The battery compartment structure according to claim 1, characterized in that, The outer frame (11) has a side opening (113) on the side away from the inner frame (12), and the side opening (113) is used to allow the external battery (2) to be installed into the external battery compartment (110).
6. The battery compartment structure according to claim 1, characterized in that, The external battery compartment (110) is equipped with a battery pull strap (4), which is used to assist in removing the external battery (2).
7. The battery compartment structure according to any one of claims 1 to 6, characterized in that, It also includes a power board (5), one end of which is fixed with a support column (13), and the power board (5) is locked and fixed to the support column (13) by a locking screw.
8. The battery compartment structure according to claim 2, characterized in that, The outer battery compartment (110) is provided with a positive electrode slot and a negative electrode slot at its two ends respectively. The positive electrode spring (111) is interference-fitted with the positive electrode slot, and the negative electrode spring (112) is interference-fitted with the negative electrode slot.
9. The battery compartment structure according to claim 5, characterized in that, It also includes an outer shell (6), which is fitted over the mounting bracket (1); the outer shell (6) is provided with a disassembly hole (61), which is opposite to the side opening (113); the disassembly hole (61) is detachably fitted with a protective cover (7) for covering the side opening (113).
10. An electrical appliance, characterized in that, Includes the battery compartment structure as described in any one of claims 1 to 9.