Battery fixing device

Abstract

The present invention discloses a battery fixing device, including a shell provided with a battery compartment and a battery cover provided at the opening of the battery compartment, one of the shell and the battery cover is provided with a card slot along the axial direction of the battery compartment, and the other is provided with a card connection portion for engaging or releasing with the card slot so that the battery cover is fixed or movable relative to the shell along the axial direction perpendicular to the battery compartment; the shell is provided with a key assembly movable along the axial direction perpendicular to the axial direction, and the battery cover is provided with a first through hole that cooperates with the key assembly so that the battery cover is fixed relative to the shell along the axial direction of the battery compartment. The battery fixing device provided by the present invention can ensure that when the battery fixing device falls and is impacted, the battery cover is stably arranged relative to the shell, so that the positive and negative poles of the battery remain connected to the electrical connector, greatly reducing the probability of battery power failure.

Description

Technical Field

[0001] The present invention relates to the technical field of battery fixing equipment, and more specifically, to a battery fixing device. Background Art

[0002] In the prior art, when fixing a dry cell battery, the battery is generally placed in a battery compartment, and the battery is fixed by a spring arranged at the negative pole and a metal sheet arranged at the positive pole, and both the negative pole spring and the positive pole metal sheet are in contact with the battery to achieve the output of electric energy; since the positive pole metal sheet is fixed, when the battery is impacted in the axial direction and moves toward the negative pole, the battery will be separated from the positive pole, causing the device to be in a power-off state, affecting the use effect; in addition, in the prior art, the battery cover is generally connected to the shell by a single-direction snap connection, and when the device falls, the battery cover is likely to fall off, thereby causing the battery to fall out and the battery to lose power.

[0003] In summary, how to provide a fixing device to prevent the battery from losing power is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a battery fixing device, which can keep the positive and negative electrodes of the battery in contact with the components forming a circuit at all times when the battery falls and is impacted, so as to avoid the battery from losing power.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A battery fixing device, comprising a shell provided with a battery compartment and a battery cover provided at an opening of the battery compartment, wherein one of the shell and the battery cover is provided with a clamping groove along the axial direction of the battery compartment, and the other is provided with a clamping portion for engaging or releasing with the clamping groove so that the battery cover is fixed or movable relative to the shell along the axial direction perpendicular to the battery compartment;

[0007] The shell is provided with a button assembly movable in a direction perpendicular to the axial direction, and the battery cover is provided with a first through hole cooperating with the button assembly so as to fix the battery cover relative to the shell along the axial direction of the battery compartment.

[0008] Preferably, the button assembly includes a pressing portion whose outer surface serves as a pressing surface, and a locking portion used to drive the pressing portion to move in a direction perpendicular to the axial direction of the battery compartment and to be fixed to a non-matching position for releasing the match with the first through hole, or a matching position for matching with the first through hole;

[0009] In the non-matching position, the pressing surface of the button assembly is lower than or flush with the outer surface of the shell; in the matching position, the pressing surface of the button assembly is higher than the outer surface of the shell.

[0010] Preferably, the pressing portion includes a key cap, and the locking portion includes a pressing rod connected to the key cap, a movable cap that is engaged with the pressing rod through helical gears, a fixing sleeve sleeved on the outer periphery of the movable cap, and an elastic component that provides elastic force for resetting the key cap;

[0011] The fixed sleeve is provided with at least one slide groove along the circumferential direction, and the movable cap is provided with a protrusion matched with the slide groove;

[0012] The button cap is pressed, and the pressing rod pushes the movable cap to rotate. When the movable cap rotates until the protrusion is matched with the slide groove, the movable cap pushes the button cap to move to the matching position under the action of the elastic component.

[0013] Preferably, the pressing surface of the button cap is lower than or flush with the outer surface of the battery cover at the matching position.

[0014] Preferably, the card slot is provided on the housing, and the card connection portion is provided on the battery cover;

[0015] The card slot includes a first card slot arranged at the lower part of the battery compartment and a second card slot arranged at the upper part of the battery compartment;

[0016] The battery cover is provided with a first engaging portion for engaging or releasing with the first engaging slot and a second engaging portion for engaging or releasing with the second engaging slot;

[0017] Furthermore, both the first clamping portion and the second clamping portion are columnar structures.

[0018] Preferably, one end of the battery compartment along the axial direction is provided with a positive electrode elastic component for providing a first pre-tightening force for the battery along the axial direction so as to contact the positive electrode of the battery, and the other end is provided with a negative electrode elastic component for providing a second pre-tightening force for the battery so as to contact the negative electrode of the battery; the positive electrode elastic component and the negative electrode elastic component are both connected to the shell;

[0019] The first preload force is in opposite directions to the second preload force;

[0020] When the battery is impacted in the axial direction, the positive electrode elastic component and the negative electrode elastic component are always in contact with the battery under the action of the first preload force and the second preload force to prevent the battery from losing power when impacted in the axial direction.

[0021] Preferably, the positive electrode elastic component comprises a positive electrode cap for contacting the positive electrode of the battery and a positive electrode spring for providing the first preload force for the battery;

[0022] The positive electrode cap is movably arranged along the axial direction of the battery compartment.

[0023] Preferably, the positive electrode elastic component further comprises a positive electrode cap bracket sleeved on the outer periphery of the positive electrode cap, and the positive electrode cap bracket is movably disposed in the mounting hole of the shell along the axial direction.

[0024] Preferably, the positive electrode cap is a positive electrode cap made of a conductive material, and the positive electrode cap bracket is a positive electrode cap bracket made of an insulating material;

[0025] The positive pole spring is a positive pole spring made of a conductive material, and the positive pole spring is arranged in contact with the positive pole cap.

[0026] Preferably, the positive electrode elastic component further comprises a positive electrode spring bracket for fixing the positive electrode spring, the positive electrode spring is sleeved on the outer periphery of the columnar protrusion of the positive electrode spring bracket, and the positive electrode spring bracket is fixedly connected to the shell.

[0027] The battery fixing device provided by the present invention comprises a shell provided with a battery compartment and a battery cover provided at the opening of the battery compartment; one of the shell and the battery cover is provided with a clamping groove along the axial direction of the battery compartment, and the other is provided with a clamping portion for engaging or releasing with the clamping groove so that the battery cover is fixed or movable relative to the shell along the axial direction perpendicular to the battery compartment;

[0028] The shell is provided with a key assembly which can move in a direction perpendicular to the axial direction, and the battery cover is provided with a first through hole which cooperates with the key assembly so as to fix the battery cover relative to the shell along the axial direction of the battery compartment.

[0029] By using the battery fixing device provided by the present invention, when the battery fixing device falls, the battery cover and the shell are clamped together along the axial direction of the battery compartment through the clamping groove and the clamping part, and the button assembly and the first through hole are matched perpendicular to the axial direction of the battery compartment, so that the battery cover is fixed relative to the shell in the direction along the axial direction of the battery compartment and in the direction perpendicular to the axial direction of the battery compartment; during the process of falling and colliding, the battery fixing device needs to be subjected to a force perpendicular to the axial direction of the battery compartment and a force along the axial direction of the battery compartment at the same time to make the battery cover fall off, but the battery fixing device is generally subjected to force in a single direction during the process of falling and colliding. Therefore, by using the battery fixing device provided by the present invention, the battery cover can be stably set when the battery fixing device falls and collides, so as to avoid the battery falling out due to the falling of the battery cover, and keep the positive and negative poles of the battery connected to the electrical connector, thereby greatly reducing the probability of battery power failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0031] Figure 1 An exploded schematic diagram of a specific embodiment of the battery fixing device provided by the present invention;

[0032] Figure 2 It is a partial exploded schematic diagram of the structure of the battery fixing device provided by the present invention;

[0033] Figure 3 It is a cross-sectional schematic diagram of the battery fixing device provided by the present invention when the button assembly is in the mating position;

[0034] Figure 4 for Figure 3 A partial enlarged view of the middle button assembly;

[0035] Figure 5 It is a cross-sectional schematic diagram of the battery fixing device provided by the present invention when the button assembly is in a non-matching position;

[0036] Figure 6 for Figure 5 A partial enlarged view of the middle button assembly;

[0037] Figure 7 It is a structural schematic diagram of the button assembly in the first state;

[0038] Figure 8 It is a structural schematic diagram of the key assembly in the second state;

[0039] Fig. 9 A partial structural schematic diagram of a battery fixing device provided by the present invention;

[0040] Fig.10 for Fig. 9 The schematic diagram of the structure of the battery fixing device after the positive electrode elastic component and the negative electrode elastic component are installed;

[0041] Fig.11 An exploded schematic diagram of a housing on which a positive electrode elastic component and a negative electrode elastic component are installed;

[0042] Fig.12 is a cross-sectional schematic diagram of the positive electrode elastic component moving to an installation position away from the negative electrode elastic component;

[0043] Fig.13 It is a cross-sectional schematic diagram showing that the positive electrode elastic component moves to an installation position close to the negative electrode elastic component.

[0044] Figure 1-13 middle:

[0045] 1 is a shell, 11 is a first card slot, 12 is a second card slot, 2 is a battery compartment, 3 is a positive elastic component, 31 is a positive cap, 32 is a positive spring, 33 is a positive cap bracket, 34 is a positive spring bracket, 341 is a columnar protrusion, 4 is a negative elastic component, 5 is a battery cover, 51 is a first clamping portion, 52 is a second clamping portion, 53 is a first through hole, 6 is a button assembly, 61 is a button cap, 62 is a pressing rod, 63 is a movable cap, 631 is a protrusion, 64 is a fixing sleeve, 641 is a slide groove, and 65 is an elastic component. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The core of the present invention is to provide a battery fixing device, which can make the battery always contact with the positive elastic component and the negative elastic component when the battery is impacted in its axial direction, so as to prevent the battery from falling due to external force impact.

[0048] Please refer to Figure 1-13 .

[0049] The battery fixing device provided in this specific embodiment includes a housing 1 provided with a battery compartment 2 and a battery cover 5 provided at the opening of the battery compartment 2; one of the housing 1 and the battery cover 5 is provided with a clamping groove along the axial direction of the battery compartment 2, and the other is provided with a clamping portion for engaging or releasing with the clamping groove so that the battery cover 5 is fixed or movable relative to the housing 1 along the axial direction perpendicular to the battery compartment 2;

[0050] The housing 1 is provided with a button assembly 6 which can move in a direction perpendicular to the axial direction, and the battery cover 5 is provided with a first through hole 53 which cooperates with the button assembly 6 to fix the battery cover 5 relative to the housing 1 along the axial direction of the battery compartment 2 .

[0051] By using the battery fixing device provided by the present invention, when the battery fixing device falls, the battery cover 5 is fixed relative to the shell 1 in the direction along the axial direction of the battery compartment 2 and in the direction perpendicular to the axial direction of the battery compartment 2 because the battery cover 5 and the shell 1 are clamped together along the axial direction of the battery compartment 2 through the clamping groove and the clamping part, and the button assembly 6 and the first through hole 53 are matched perpendicular to the axial direction of the battery compartment 2; during the process of falling and colliding, the battery fixing device needs to be subjected to a force perpendicular to the axial direction of the battery compartment 2 and a force along the axial direction of the battery compartment 2 at the same time to make the battery cover 5 fall off, but the battery fixing device is generally subjected to force in a single direction during the process of falling and colliding. Therefore, by using the battery fixing device provided by the present invention, the battery cover 5 can be stably set when the battery fixing device falls and collides, so as to avoid the battery falling out due to the falling of the battery cover 5, and keep the positive and negative poles of the battery connected to the electrical connector, thereby greatly reducing the probability of battery power failure.

[0052] Based on the above embodiments, Figure 2 As shown, the card slot can be set on the shell 1, and the card connection part can be set on the battery cover 5; the card slot includes a first card slot 11 set at the lower part of the battery compartment 2 and a second card slot 12 set at the upper part of the battery compartment 2; the battery cover 5 is provided with a first card connection part 51 for cooperating with or releasing the first card slot 11 and a second card connection part 52 for cooperating with or releasing the second card slot 12; and the first card connection part 51 and the second card connection part 52 are both columnar structures.

[0053] Preferably, the first clamping portion 51 and the second clamping portion 52 are both cylindrical structures.

[0054] During the assembly process, the first clamping portion 51 and the first clamping slot 11, as well as the second clamping portion 52 and the second clamping slot 12, can be clamped together at the same time to limit the movement of the battery cover 5 perpendicular to the axial direction. In order to prevent the battery cover 5 from falling along the axial direction, a groove can be circumferentially arranged in the cylindrical structure of the first clamping portion 51 or the second clamping portion 52, and a boss that cooperates with the groove can be arranged in the first clamping slot 11 or the second clamping slot 12 to fix the battery cover 5 along the axial direction.

[0055] It should be noted that the first clamping portion 51 and the second clamping portion 52 may also be in other shapes, which are determined according to actual conditions and will not be elaborated herein.

[0056] On the basis of the above embodiment, in order to better realize the clamping connection between the battery cover 5 and the housing 1 so as to limit the axial movement of the battery cover 5 relative to the housing 1, the button assembly 6 may include a pressing portion with an outer surface as a pressing surface, and a locking portion for driving the pressing portion to move in a direction perpendicular to the axial direction of the battery compartment 2 and fixed to a non-matching position for releasing the match with the first through hole 53, or a matching position for matching with the first through hole 53;

[0057] In the non-matching position, the pressing surface of the key assembly 6 is lower than or flush with the outer surface of the shell 1 ; in the matching position, the pressing surface of the key assembly 6 is higher than the outer surface of the shell 1 .

[0058] During installation of the battery cover 5, first press the button assembly 6 to fix the button assembly 6 to the non-matching position. At this time, the outer surface of the button assembly 6 is lower than the outer surface of the shell 1. The card slot of the battery cover 5 is matched with the snap-fitting portion, and then the button is pressed to fix it to the matching position to achieve snap-fitting with the first through hole 53. At this time, the battery cover 5 is fixed perpendicular to the axial direction through the card slot and the snap-fitting portion, and is fixed axially through the button assembly 6 and the first through hole 53 to prevent the battery cover 5 from being separated from the shell 1 when the battery fixing device falls.

[0059] On the basis of the above embodiment, in order to facilitate operation, the pressing part can include a key cap 61 whose outer surface serves as a pressing surface, and the locking part includes a pressing rod 62 connected to the key cap 61, a movable cap 63 that is driven by the pressing rod 62 through helical gear meshing, a fixed sleeve 64 sleeved on the outer periphery of the movable cap 63, and an elastic component 65 that provides elastic force for the reset of the key cap 61; the fixed sleeve 64 is provided with at least one slide groove 641 along the circumferential direction, and the movable cap 63 is provided with a protrusion 631 that cooperates with the slide groove 641; the key cap 61 is pressed, and the pressing rod 62 pushes the movable cap 63 to rotate. When the movable cap 63 rotates to the point where the protrusion 631 cooperates with the slide groove 641, under the action of the elastic component 65, the movable cap 63 pushes the key cap 61 to move to the matching position.

[0060] like Figure 7 , Figure 8As shown, the pressing rod 62 is provided with a first beveled tooth, the movable cap 63 is provided with a second beveled tooth meshing with the first beveled tooth, the protrusion 631 is provided along the outer periphery of the movable cap 63, the fixed sleeve 64 is sleeved on the outer periphery of the pressing rod 62, and the upper surface of the protrusion 631 is provided with a first beveled surface, and the lower part of the fixed sleeve 64 is provided with a second beveled surface matching with the first beveled surface. In the initial state, the key cap 61 is located in the matching position, and the key cap 61 is pressed downward, and the key cap 61 drives the pressing rod 62 to move. In the process of the first beveled tooth and the second beveled tooth in the pressing rod 62 matching, the movable cap 63 will move along the slide groove 641 in the direction away from the surface of the shell 1. When the protrusion 631 in the movable cap 63 is disengaged from the slide groove 641, the first beveled tooth and the second beveled tooth are engaged. During the engagement process, the movable cap 63 is pushed to rotate so that the movable cap 63 rotates to a position where the protrusion 631 and the slide groove 641 do not correspond. At this time, the key cap 61 is released, and the movable cap 63 cannot move toward the surface of the shell 1 under the action of the fixed sleeve 64, so that the key assembly 6 is in a non-matching position. At this time, the outer surface of the key cap 61 is lower than the outer surface of the shell 1; when the key cap 61 needs to be moved to the matching position, the key cap 61 is pressed downward, and the pressing rod 62 drives the movable cap 63 to rotate so that the movable cap 63 rotates to a position where the protrusion 631 and the slide groove 641 correspond. After releasing, the movable cap 63 moves along the slide groove 641 toward the surface of the shell 1 under the action of the elastic component 65, so that the key cap 61 is reset to the matching position.

[0061] Preferably, the outer surface of the button cap 61 is lower than or flush with the outer surface of the battery cover 5 at the mating position, so that when the battery fixing device falls, even if the button assembly 6 falls on its side, the button assembly 6 will not fall apart, thereby improving the assembly firmness of the battery cover 5.

[0062] On the basis of the above embodiment, a positive electrode elastic component 3 for providing a first axial preload to the battery so as to contact the positive electrode of the battery can be provided at one axial end of the battery compartment 2, and a negative electrode elastic component 4 for providing a second preload to the battery so as to contact the negative electrode of the battery can be provided at the other end; the direction of the second preload is opposite to the direction of the first preload so that the battery is clamped and fixed; when the battery is subjected to an axial impact, the positive electrode elastic component 3 and the negative electrode elastic component 4 are always in contact with the battery under the action of the first preload and the second preload to avoid power loss of the battery when subjected to an axial impact.

[0063] It should be noted that the axial direction mentioned here refers to the connection direction of the positive pole and the negative pole of the battery after the battery is placed in the battery compartment 2.

[0064] The direction of the first preload force is axially directed toward the negative electrode of the battery, and the direction of the second preload force is axially directed toward the positive electrode of the battery, so that the battery is in a clamped and fixed state under normal conditions.

[0065] When the battery is impacted and moves axially toward the positive pole, the positive pole elastic component 3 provides a buffering force for the battery, and the negative pole elastic component 4 always fits with the battery under the action of the elastic force; when the battery is impacted and moves axially toward the negative pole, the negative pole elastic component 4 provides a buffering force for the battery, and the positive pole elastic component 3 always fits with the battery under the action of the elastic force.

[0066] Preferably, at least one of the positive electrode elastic component 3 and the negative electrode elastic component 4 may be configured to be movable in the axial direction.

[0067] By using the battery fixing device provided in this specific embodiment, when the battery is impacted along its axial direction, the battery will move toward the positive elastic component 3 or the negative elastic component 4. At this time, the positive elastic component 3 or the negative elastic component 4 provides a buffer force for the battery's reset to prevent the battery from falling due to the impact; and because both the positive elastic component 3 and the negative elastic component 4 are elastic, and their elastic force can fix the battery, when the battery is impacted and moves along its axial direction, the positive elastic component 3 and the negative elastic component 4 can always maintain contact with the battery under the action of the elastic force, thereby preventing the battery from being powered off and improving the user's experience.

[0068] Preferably, the negative electrode elastic component 4 can be set as a negative electrode spring, and the negative electrode spring is connected to the circuit. When the negative electrode spring contacts the negative electrode of the battery, a path can be formed to allow the battery to discharge normally.

[0069] On the basis of the above embodiment, the positive electrode elastic component 3 can include a positive electrode cap 31 for contacting the positive electrode of the battery and a positive electrode spring 32 for providing a first preload force for the battery, and the positive electrode cap 31 can be movably arranged along the circumference of the battery compartment 2.

[0070] Preferably, the positive electrode cap 31 can be set as a cylindrical structure with a bottom surface, the bottom surface of the cylindrical structure faces the positive electrode of the battery and contacts the positive electrode of the battery, and the positive electrode spring 32 is set inside the cylindrical structure and contacts the positive electrode cap 31.

[0071] In order to make the first preload force provided by the positive spring 32 more stable, one end of the positive spring 32 can be fixed and the other end can be in contact with the positive cap 31, and the positive spring 32 is always in a compressed state to provide the first preload force for the battery.

[0072] In order to facilitate the installation of the positive cap 31 and avoid wear of the positive cap 31 during axial movement, a positive cap bracket 33 may be included which is sleeved on the outer periphery of the positive cap 31 and is axially movably arranged in the mounting hole of the shell 1.

[0073] like Fig.12 , 13As shown, a columnar mounting hole is provided at the lower portion of the shell 1 near the position for mounting the positive electrode of the battery, the axial direction of the mounting hole coincides with or is parallel to the axial direction of the battery compartment 2, and the positive electrode cap bracket 33 is movably provided along the axial direction of the mounting hole.

[0074] Preferably, a limiting portion for limiting the movement position of the positive cap bracket 33 is provided on the side of the mounting hole close to the battery compartment 2. The limiting portion is a protrusion provided on the edge of the mounting hole facing the battery compartment 2 to prevent the positive cap bracket 33 from falling off.

[0075] Preferably, a second through hole for installing the positive cap 31 can be provided on the positive cap bracket 33, and the edge of the positive cap 31 is provided with an outward flange to achieve snap-fitting with the positive cap bracket 33, or the positive cap 31 and the positive cap bracket 33 can also be fixedly connected by other means, which is determined according to actual conditions and will not be elaborated here.

[0076] Preferably, a chamfer is provided on the side of the positive electrode cap bracket 33 facing the battery.

[0077] On the basis of the above embodiment, in order to realize the electrical connection between the positive electrode of the battery and the relevant circuit, the positive electrode cap 31 can be set to be a positive electrode cap of a conductive material, and the positive electrode cap bracket 33 can be set to be a positive electrode cap bracket of an insulating material;

[0078] The positive electrode spring 32 is configured as a positive electrode spring made of a conductive material, and the positive electrode spring 32 is configured to contact the positive electrode cap 31 .

[0079] Setting the positive electrode cap bracket 33 as a positive electrode cap bracket made of insulating material can prevent the charge of the battery from being transmitted from the positive electrode cap bracket 33 to the housing 1, thereby preventing leakage.

[0080] Preferably, the positive cap 31 can be directly connected to the circuit, or the positive spring 32 can be connected to the circuit. Since the positive spring 32 is made of conductive material, current can flow out from the positive electrode of the battery and be transmitted to related components through the positive cap 31 and the positive spring 32.

[0081] On the basis of the above embodiment, in order to achieve the fixation of the positive spring 32, a positive spring bracket 34 for fixing the positive spring 32 can be provided, and the positive spring bracket 34 is provided with a columnar protrusion 341, and the positive spring 32 is sleeved on the outer periphery of the columnar protrusion 341, and one end of the positive spring 32 abuts against the positive spring bracket 34 to limit the movement of the positive spring 32.

[0082] Preferably, the positive electrode spring bracket 34 can be detachably connected to the housing 1 by screws. Of course, other connection methods are also possible, which are determined according to actual conditions.

[0083] The assembly sequence of the positive electrode elastic component 3 is as follows: first, insert the positive electrode cap bracket 33 from one end of the positive electrode cap 31, then install the positive electrode spring 32 into the positive electrode cap 31, then make the columnar protrusion 341 in the positive electrode cap bracket 33 pass through the positive electrode spring 32, and install the positive electrode elastic component 3 as a whole into one end of the battery compartment 2, and fix the positive electrode spring bracket 34 to the shell 1.

[0084] It should be noted that the first and second pre-tightening forces, the first clamping slots 11 and the second clamping slots 12, the first clamping portions 51 and the second clamping portions 52, the first through holes 53 and the second through holes, the first inclined planes and the second inclined planes, the first bevel teeth and the second bevel teeth mentioned in the present application document are only for distinguishing the differences in positions or directions, and there is no order of precedence.

[0085] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Any combination of all embodiments provided by the present invention is within the protection scope of this invention and will not be described in detail here.

[0086] The battery fixing device provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A battery fixing device, comprising a housing (1) provided with a battery compartment (2) and a battery cover (5) provided at an opening of the battery compartment (2), It is characterized in that One of the housing (1) and the battery cover (5) is provided with a slot along the axial direction of the battery compartment (2), and the other is provided with a snap-fitting portion for engaging or releasing with the slot so as to fix or move the battery cover (5) relative to the housing (1) along the axial direction perpendicular to the battery compartment (2); The housing (1) is provided with a key assembly (6) movable in a direction perpendicular to the axial direction, and the battery cover (5) is provided with a first through hole (53) cooperating with the key assembly (6) so as to fix the battery cover (5) relative to the housing (1) in the axial direction of the battery compartment (2); The button assembly (6) comprises a pressing portion whose outer surface serves as a pressing surface, and a locking portion used to drive the pressing portion to move in a direction perpendicular to the axial direction of the battery compartment (2) and to be fixed to a non-matching position that is released from matching with the first through hole (53) or a matching position that is matched with the first through hole (53); Furthermore, in the non-matching position, the pressing surface of the key assembly (6) is lower than or flush with the outer surface of the shell (1); in the matching position, the pressing surface of the key assembly (6) is higher than the outer surface of the shell (1); The pressing portion comprises a key cap (61), and the locking portion comprises a pressing rod (62) connected to the key cap (61), a movable cap (63) engaged with the pressing rod (62) through helical gearing, a fixing sleeve (64) sleeved on the outer periphery of the movable cap (63), and an elastic component (65) providing elastic force for resetting the key cap (61); The fixed sleeve (64) is provided with at least one slide groove (641) along the circumferential direction, and the movable cap (63) is provided with a protrusion (631) matched with the slide groove (641); The button cap (61) is pressed, and the pressing rod (62) pushes the movable cap (63) to rotate. When the movable cap (63) rotates until the protrusion (631) is matched with the slide groove (641), under the action of the elastic component (65), the movable cap (63) pushes the button cap (61) to move to the matching position.

2. The battery fixing device according to claim 1, It is characterized in that The pressing surface of the button cap (61) is lower than or flush with the outer surface of the battery cover (5) at the matching position.

3. The battery fixing device according to claim 1, It is characterized in that The card slot is arranged on the housing (1), and the card connection portion is arranged on the battery cover (5); The card slot comprises a first card slot (11) arranged at the lower part of the battery compartment (2) and a second card slot (12) arranged at the upper part of the battery compartment (2); The battery cover (5) is provided with a first clamping portion (51) for clamping or releasing with the first clamping slot (11) and a second clamping portion (52) for clamping or releasing with the second clamping slot (12); Furthermore, the first clamping portion (51) and the second clamping portion (52) are both columnar structures.

4. The battery fixing device according to any one of claims 1 to 3, It is characterized in that The battery compartment (2) is provided with a positive electrode elastic component (3) at one end along the axial direction thereof for providing the battery with a first pre-tightening force along the axial direction so as to contact the positive electrode of the battery, and a negative electrode elastic component (4) is provided at the other end thereof for providing the battery with a second pre-tightening force so as to contact the negative electrode of the battery; the positive electrode elastic component (3) and the negative electrode elastic component (4) are both connected to the housing (1); The first preload force is in opposite directions to the second preload force; When the battery is impacted in the axial direction, the positive electrode elastic component (3) and the negative electrode elastic component (4) are always in contact with the battery under the action of the first preload force and the second preload force, so as to avoid power loss of the battery when the battery is impacted in the axial direction.

5. The battery fixing device according to claim 4, It is characterized in that The positive electrode elastic component (3) comprises a positive electrode cap (31) for contacting the positive electrode of the battery and a positive electrode spring (32) for providing the first preload force for the battery; The positive electrode cap (31) is movably arranged along the axial direction of the battery compartment (2).

6. The battery fixing device according to claim 5, It is characterized in that The positive electrode elastic component (3) further comprises a positive electrode cap bracket (33) sleeved on the outer periphery of the positive electrode cap (31), and the positive electrode cap bracket (33) is movably arranged in the mounting hole of the housing (1) along the axial direction.

7. The battery fixing device according to claim 6, It is characterized in that The positive electrode cap (31) is a positive electrode cap made of a conductive material, and the positive electrode cap bracket (33) is a positive electrode cap bracket made of an insulating material; The positive pole spring (32) is a positive pole spring made of a conductive material, and the positive pole spring (32) is arranged in contact with the positive pole cap (31).

8. The battery fixing device according to claim 6, It is characterized in that The positive pole elastic component (3) further comprises a positive pole spring bracket (34) for fixing the positive pole spring (32); the positive pole spring (32) is sleeved on the outer periphery of the columnar protrusion (341) of the positive pole spring bracket (34); and the positive pole spring bracket (34) is fixedly connected to the housing (1).

Images