Gear display device and refrigeration equipment with same

Abstract

The utility model provides a gear display device and refrigeration equipment with the gear display device, and the gear display device comprises a rotary adjusting rod which is used for adjusting gears of a temperature control system; the display assembly comprises two groups of first branch units connected in parallel, display elements located on the first branch units and first connecting pieces used for controlling the first branch units to be connected and disconnected, the first connecting pieces are arranged at intervals in the axial direction of the rotating adjusting rod, and only one of the first branch units is in a connected state. According to the temperature control system, the rotating adjusting rod is matched with the display assembly, the rotating adjusting rod is rotated to adjust the gear of the temperature control system, the branch unit corresponding to the gear is communicated, the display element on the branch unit is started to display the gear, a user can determine the current gear conveniently, and the user experience is improved. And only one group of branch units can be ensured to be in a connected state.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a gear position display device and a refrigeration device having the same. Background Art

[0002] In the related art, mechanical temperature control refrigeration equipment is set by rotating the temperature control system knob, but the set gear position cannot be intuitively seen by the user. To determine the gear position, the refrigerator must be opened and the knob indication position must be checked.

[0003] The present invention aims to indicate the current gear position by means of an external display element, so that different display elements corresponding to different gear positions are rotated, and it is necessary to ensure a one-to-one correspondence between the gear positions and the display elements to prevent multiple groups of display elements from being turned on at the same time. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model provides a gear display device, which includes a rotating adjustment rod for adjusting the gear position of a temperature control system; a display component, including two groups of parallel first branch units, a display element located on the first branch unit and a first connecting member for controlling the on and off of the first branch unit, the first connecting member is arranged at intervals along the axial direction of the rotating adjustment rod, and the central axes L1 of the two first connecting members are parallel to each other, and when the rotating adjustment rod is rotated to a first angle, one and only one of the first branch units is in a connected state.

[0005] As a further improvement of the present invention, the first branch unit includes a first contact member and a second contact member. When the first connecting member contacts the first contact member and the second contact member at the same time, the first branch unit is in a connected state.

[0006] As a further improvement of the utility model, the first connecting member includes a fixed ring sleeved on the rotating adjustment rod, and a first conductive member and a second conductive member are arranged on the fixed ring at intervals. The first conductive member only contacts the first contact member and / or the second conductive member only contacts the second contact member, and the first conductive member and the second conductive member on the two fixed rings are in opposite positions.

[0007] As a further improvement of the present invention, a connecting line between the first conductive member and the second conductive member coincides with the central axis L1, and the first conductive member and the second contact member are offset from each other along the axial direction of the rotating adjustment rod and / or the second conductive member and the first contact member are offset from each other along the axial direction of the rotating adjustment rod.

[0008] As a further improvement of the present invention, the first conductive member and the second conductive member are respectively located on both sides of the fixing ring in the axial direction;

[0009] Or, the first conductive member is located on one side of the fixing ring in the axial direction;

[0010] Or, the second conductive member is located on one side of the fixing ring in the axial direction

[0011] As a further improvement of the present invention, the first contact member has a first arc surface, the second contact member has a second arc surface, the first arc surface and the second arc surface are cocircular and coincide with the center of the fixed ring, the length of the first conductive member extending radially along the rotating adjustment rod is the difference between the radius of the first arc surface and the radius of the fixed ring, and the second conductive member is the same length as the first conductive member.

[0012] As a further improvement of the present invention, the display component further includes a second branch unit and a second connecting member for controlling the on and off of the second branch unit, and a central axis L2 of the second connecting member and a central axis L1 of the adjacent first connecting member have a first angle.

[0013] As a further improvement of the present invention, a plurality of groups of second branch units are arranged at intervals, a second angle is formed between the central axes L2 of two adjacent second connecting members, and the first angle is equal to the second angle.

[0014] As a further improvement of the present invention, when the rotating adjustment rod is rotated to a second angle, one and only one of the second branch units is in a connected state.

[0015] The utility model also provides a refrigeration device, which is characterized by comprising a temperature control system and a gear position display device connected to the temperature control system.

[0016] Beneficial effects of the utility model: the application cooperates with the display component through the rotating adjustment rod, and the rotating adjustment rod is rotated to adjust the gear position of the temperature control system, which is connected to the branch unit corresponding to the gear position. The display element on the branch unit is turned on to display the gear position so that the user can determine the current gear position, and it can ensure that one and only one group of branch units are in a connected state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the gear position display device of the utility model;

[0019] Figure 2This is a schematic diagram of the structure of the gear position display device of the utility model after removing the housing;

[0020] Figure 3 for Figure 2 The exploded schematic diagram shown;

[0021] Figure 4 This is a schematic diagram of the cooperation between the rotating adjustment rod and the display assembly of the utility model;

[0022] Figure 5 This is another perspective diagram of the cooperation of the rotating adjustment rod-display assembly of the utility model;

[0023] Figure 6 For this utility model Figure 5 Schematic diagram after the adjustment lever is rotated 180°;

[0024] Figure 7 This is a schematic diagram of the distribution of the first connecting member and the second connecting member of the utility model;

[0025] Figure 8 A schematic diagram of the first connecting member or the second connecting member of the utility model;

[0026] Fig. 9 It is a circuit diagram of the display component of the utility model.

[0027] In the figure:

[0028] 100, rotating adjustment rod; 101, rotating part; 102, adjusting knob;

[0029] 200, display component; 201, first branch unit; 201a, first contact member; 201b, second contact member; 202, display element; 203, first connecting member; 203a, fixing ring; 203b, first conducting member; 203c, second conducting member; 204, second branch unit; 205, second connecting member;

[0030] 300. Temperature control system; 400. Bracket; 500. Shell. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0035] like Figures 1 to 9 As shown, the gear display device provided by the present application includes a rotating adjustment lever 100 and a display component 200. The rotating adjustment lever 100 is used to adjust the gear of the temperature control system 300. When the rotating adjustment lever 100 is rotated to a certain gear, the display component 200 displays an identification corresponding to the gear, thereby facilitating confirmation of the current gear.

[0036] The display assembly 200 includes two groups of first branch units 201 connected in parallel, a display element 202 located on the first branch unit 201 and a first connecting member 203 for controlling the on and off of the first branch unit 201 .

[0037] The two groups of the first branch units 201 correspond to different gears, respectively. When the rotating adjustment lever 100 is rotated to the first gear, one of the first branch units 201 is connected, and the corresponding display element 202 displays the current gear. When the rotating adjustment lever 100 is rotated to the second gear, another of the first branch units 201 is connected, and the corresponding display element 202 displays the current gear.

[0038] The first branch unit 201 is arranged at intervals along the axial direction of the rotating adjustment rod 100. The first branch unit 201 includes a first contact member 201a and a second contact member 201b, and the first contact member 201a and the second contact member 201b are arranged at intervals along the circumferential direction of the rotating adjustment rod 100. When the first connecting member 203 contacts the first contact member 201a and the second contact member 201b at the same time, the first branch unit 201 is in a connected state.

[0039] In the present application, the angle between the first contact member 201a and the second contact member 201b is 180°, that is, the axis of the first contact member 201a, the second contact member 201b and the rotation adjustment rod 100 are located on the same straight line.

[0040] The first connecting members 203 are arranged at intervals along the axial direction of the rotating adjustment rod 100 and the rotating adjustment rod 100 rotates synchronously. The positions of the first connecting members 203 and the first branch units 201 correspond one to one, and the central axes L1 of the two first connecting members 203 are parallel to each other. When the rotating adjustment rod 100 rotates to the first angle, only one of the first branch units 201 is in a connected state.

[0041] It can be understood that, since the central axes L1 of the two first connecting members 203 are parallel to each other, the angles between the two first connecting members 203 and the first contact member 201a and the second contact member 201b are always consistent. In order to prevent the two first branch units 201 from being connected at the same time when the rotating adjustment rod 100 is rotated to the first angle, the present application adopts the following solution:

[0042] The first connecting member 203 includes a fixing ring 203a sleeved on the rotating adjustment rod 100, and a first conductive member 203b and a second conductive member 203c spaced apart on the fixing ring 203a. The fixing ring 203a is driven to rotate synchronously by rotating the rotating adjustment rod 100, thereby driving the first conductive member 203b and the second conductive member 203c to rotate synchronously.

[0043] The connecting line of the first conductive member 203b and the second conductive member 203c coincides with the central axis L1, that is, the angle between the first conductive member 203b and the second conductive member 203c is the same as the angle between the first contact member 201a and the second contact member 201b. In this way, the first conductive member 203b and the first contact member 201a, the second conductive member 203c and the second contact member 201b can be in contact at the same time to connect the first branch unit 201.

[0044] The first conductive member 203b is in contact with the first contact member 201a only and / or the second conductive member 203c is in contact with the second contact member 201b only, and the first conductive member 203b and the second conductive member 203c on the two fixing rings 203a are in opposite positions.

[0045] In one embodiment, the first conductive member 203b is used to contact the first contact member 201a, and the first conductive member 203b and the second contact member 201b are offset from each other along the axial direction of the rotating adjustment rod 100; the second conductive member 203c can contact both the first contact member 201a and the second contact member 201b.

[0046] Specifically, the first conductive member 203b is located on one axial side of the fixing ring 203a, and the second contact member 201b is located on the other axial side of the fixing ring 203a. The second conductive member 203c and the fixing ring 203a have the same size along the axial direction of the rotating adjustment rod 100, and the first contact member 201a and the second conductive member 203c completely overlap along the axial direction of the rotating adjustment rod 100.

[0047] When the rotating adjustment rod 100 rotates to the first angle, the first contact member 201a of one of the first branch units 201 contacts the first conductive member 203b of the corresponding first connecting member 203, and the second contact member 201b contacts the second conductive member 203c, and the first branch unit 201 is in a connected state, and the display element 202 thereon is turned on to indicate the current gear position. At the same time, the first contact member 201a of another first branch unit 201 and the second conductive member 203 of the corresponding first connecting member 203 are at the same position of the rotating adjustment rod 100 in the circumferential direction, but the two are misaligned, and the second contact member 201b contacts the first conductive member 203b, and the first branch unit 201 is in a disconnected state.

[0048] When the rotating adjustment lever 100 rotates 180° from the first angle, the first branch unit 201 that was previously connected is disconnected, the first conductive member 203b rotates to the position of the second contact member 201b but the two are misaligned, and the second conductive member 203c rotates to the position of the first contact member 201a and contacts each other. The first branch unit 201 that was previously disconnected is connected, the first conductive member 203b rotates to the position of the first contact member 201a and contacts each other, the second conductive member 203c rotates to the position of the second contact member 201b and contacts each other, and the display element 202 thereon is turned on to indicate the current gear position.

[0049] In this way, the switching connection of the two first branch units 201 can be achieved by rotating the rotating adjustment lever 100, which can prevent the two first branch units 201 from being turned on at the same time, and the current gear position can be marked by the display element 202 for user observation.

[0050] In another embodiment, the first conductive member 203b can contact the first contact member 201a or the second contact member 201b; the second conductive member 203c is used to contact the second contact member 201b, and the second conductive member 203cb and the first contact member 201a are offset from each other along the axial direction of the rotating adjustment rod 100.

[0051] Specifically, the first conductive member 203b and the fixing ring 203a have the same size in the axial direction of the rotating adjustment rod 100, and the second contact member 201b completely overlaps with the first conductive member 203b in the axial direction of the rotating adjustment rod 100. The second conductive member 203c is located on one side of the fixing ring 203a in the axial direction, and the first contact member 201a is located on the other side of the fixing ring 203a in the axial direction.

[0052] The specific switching method is the same as the previous implementation method and will not be repeated here.

[0053] In another embodiment, the first conductive member 203b is used to contact the first contact member 201a, and the first conductive member 203b and the second contact member 201b are offset from each other along the axial direction of the rotating adjustment rod 100; the second conductive member 203c is used to contact the second contact member 201b, and the second conductive member 203c and the first contact member 201a are offset from each other along the axial direction of the rotating adjustment rod 100.

[0054] Specifically, the first conductive member 203b and the second conductive member 203c are respectively located on both sides of the axial direction of the fixing ring 203a, the first contact member 201a and the first conductive member 203b completely overlap along the axial direction of the rotating adjustment rod 100, and the second contact member 201b and the second conductive member 203c completely overlap along the axial direction of the rotating adjustment rod 100.

[0055] When the rotating adjustment rod 100 rotates to the first angle, the first contact member 201a of one of the first branch units 201 contacts the first conductive member 203b of the corresponding first connecting member 203, and the second contact member 201b contacts the second conductive member 203c, and the first branch unit 201 is in a connected state, and the display element 202 thereon is turned on to indicate the current gear position. At the same time, the first contact member 201a of another first branch unit 201 and the second conductive member 203 of the corresponding first connecting member 203 are at the same position of the rotating adjustment rod 100 in the circumferential direction, but the two are misaligned, and the second contact member 201b and the first conductive member 203b are at the same position of the rotating adjustment rod 100 in the circumferential direction, but the two are misaligned, and the first branch unit 201 is in a disconnected state.

[0056] When the rotating adjustment lever 100 rotates 180° from the first angle, the first branch unit 201 that was previously connected is disconnected, the first conductive member 203b rotates to the position of the second contact member 201b but the two are misaligned, and the second conductive member 203c rotates to the position of the first contact member 201a but the two are misaligned. The first branch unit 201 that was previously disconnected is connected, the first conductive member 203b rotates to the position of the first contact member 201a and contacts each other, the second conductive member 203c rotates to the position of the second contact member 201b and contacts each other, and the display element 202 thereon is turned on to indicate the current gear position.

[0057] The display element 202 includes but is not limited to a display light, a gear position mark, a gear position number or a graph. Preferably, the display element 202 is a display light, which has a simple structure, is convenient for display, and can reduce the cost of the gear position display device.

[0058] In an optional embodiment, the first contact member 201a has a first arc surface, the first arc surface coincides with the center of the fixing ring 203a, and the length of the first conductive member 203b extending radially along the rotating rod 100 is the difference between the radius of the first arc surface and the radius of the fixing ring 203a. The second contact member 201b has a second arc surface, the second arc surface coincides with the center of the fixing ring 203a, and the length of the second conductive member 203c extending radially along the rotating rod 100 is the difference between the radius of the second arc surface and the radius of the fixing ring 203a.

[0059] The first conductive member 203b can contact the first arc surface during the rotation process of following the rotation adjustment rod 100, and the second conductive member 203c can contact the second arc surface to connect the first branch unit 100. The arc surface can increase the contact area between the first connecting member 203 and the contact member to prevent poor contact, and can maintain the connection state of the first branch unit 100 within a certain rotation range.

[0060] Preferably, the cross-sectional shapes of the first contact piece 201a and the second contact piece 201b are the same, that is, the central angles of the first arc surface and the second arc surface are the same, so that during the rotation process, the first conductive piece 203b and the first contact piece 201a, and the second conductive piece 203c and the second contact piece 201b are connected and separated at the same time.

[0061] Preferably, the first arc surface and the second arc surface are cocircular, that is, the radius of the first arc surface is the same as the radius of the second arc surface. Correspondingly, the first conductive member 203b and the second conductive member 203c have the same length extending radially along the rotating rod 100.

[0062] Of course, when the first conductive member 203b and the second contact member 201b are offset from each other in the axial direction of the rotating adjustment rod 100 and the second conductive member 203c and the first contact member 201a are offset from each other in the axial direction of the rotating adjustment rod 100, the lengths of the first conductive member 203b and the second conductive member 203c can also be set to be different.

[0063] In an optional embodiment, the display component 200 further includes a second branch unit 204 and a second connecting member 205 for controlling the on and off of the second branch unit 204 , and a central axis L2 of the second connecting member 205 and a central axis L2 of the adjacent first connecting member 203 have a first angle.

[0064] Specifically, the second branch unit 204 is located between two groups of the first branch units 201 and is connected in parallel with the first branch unit 201. The second branch unit 204 is the same as the first branch unit 201, and is also connected to the display element 202. The second branch unit 204 also includes the first contact element 201a and the second contact element 201b.

[0065] The second connecting member 205 is the same as the first connecting member 203, and includes a fixing ring 203a sleeved on the rotating adjustment rod 100, and a first conductive member 203b and a second conductive member 203c spaced apart from each other on the fixing ring 203a.

[0066] The second branch unit 204 corresponds to other gears of the temperature control unit. When the rotating adjustment lever 100 rotates from the first angle to the second angle, the first branch unit 201 is disconnected, the second connecting member 205 is connected to the second branch unit 204, and the display element 202 on the second branch unit 204 is turned on to indicate the current gear.

[0067] The second branch units 204 are arranged in a plurality of groups at intervals, and a second angle is formed between the central axes L2 of two adjacent second connecting members 205 , and the first angle is equal to the second angle.

[0068] It can be understood that the adjustment range between the two groups of the first branch units 201 is 180°, and the plurality of second connecting members 205 divide 180° equally along the circumference of the rotating adjustment rod 300, so that the second branch units 204 are connected in sequence during the rotation of the rotating adjustment rod 300. The rotating angle of the rotating adjustment rod 300 for adjusting the gear position of the temperature control system at a single time is constant (corresponding to the first angle), and the number of the second branch units 204 can be determined depending on the number of gear positions of the temperature control system.

[0069] It should be noted that the first angle is greater than the center angle of the first arc surface and the second arc surface, thereby ensuring that the previous branch unit is disconnected while the next branch unit is connected during the gear adjustment process, avoiding the two groups of display elements 202 from being turned on at the same time.

[0070] In a specific embodiment, the temperature control system has 4 gears, and the adjustment range of the rotating adjustment lever 100 is 180°. The display assembly 200 includes two groups of the first branch units 201 and two groups of the second branch units 204, the first angle and the second angle are 60°, and the rotation angle of the rotating adjustment lever 100 for adjusting the gear of the temperature control system in a single time is 60°.

[0071] For the convenience of description, the two groups of the first branch units 201 are distinguished by the first branch unit A and the first branch unit B respectively, and the two groups of the second branch units 204 are distinguished by the second branch unit A and the second branch unit B respectively.

[0072] In the initial state, the temperature control system is in the first gear, the first branch unit A is in a connected state, and the display element 202 thereon is turned on to indicate the current gear. When the rotating adjustment lever 100 is rotated 60° to switch to the second gear, the first branch unit A is disconnected, the second branch unit A is in a connected state, and the display element 202 thereon is turned on to indicate the current gear. When the rotating adjustment lever 100 is continued to be rotated to switch to the third gear, the second branch unit A is disconnected, the second branch unit B is in a connected state, and the display element 202 thereon is turned on to indicate the current gear. When the rotating adjustment lever 100 is continued to be rotated to switch to the fourth gear, the second branch unit B is disconnected, the first branch unit B is in a connected state, and the display element 202 thereon is turned on to indicate the current gear.

[0073] In this way, by cooperating with the rotating adjustment rod 100 and the display component 200, the rotating adjustment rod 100 is rotated to adjust the gear position of the temperature control system, and the branch unit corresponding to the gear position is connected. The display element 202 on the branch unit is turned on to display the gear position so that the user can determine the current gear position.

[0074] Considering that the central axis L2 of any second connecting member 205 is different, the first conductive member 203b, the second conductive member 203c and the first contact member 201a, the second contact member 201b may not be misaligned. If the central axis L2 of the second connecting member 205 is the same, the two groups of the second connecting members 205 with the same central axis L2 may be arranged with reference to the first connecting member 203.

[0075] In an optional embodiment, the gear position display device also includes a pair of brackets 400, the pair of brackets 400 form a receiving space, the rotating adjustment rod 100 is located in the receiving space, the first contact member 201a and the second contact member 201b are respectively fixed on the pair of brackets 400, and at least part of the structure is exposed in the receiving space to facilitate contact with the connecting member.

[0076] Specifically, the bracket 400 is provided with a fixing hole for fixing the contact member, and the arc surface of the contact member is located in the receiving space, so as to facilitate electrical connection with the connecting member.

[0077] The gear position display device further includes a shell 500 , which is provided with an opening (not shown). The bracket 400 is located in the shell 500 , and the rotating adjustment rod 100 is exposed from the opening to the outside of the shell 500 , so as to facilitate the rotation of the rotating adjustment rod 100 .

[0078] Specifically, the rotation adjustment rod 100 includes a rotation portion 101 located in the receiving space and an adjustment knob 102 located outside the housing 500 , and the rotation portion 101 is driven to rotate by rotating the adjustment knob 102 .

[0079] The present application also relates to a refrigeration device, which includes the above-mentioned gear display device and a temperature control system 300. The temperature control system 300 is composed of a membrane box, a membrane box lever, a temperature-sensing package or a test tube connected to the membrane box, an eccentric wheel connected to the membrane box lever, and a micro switch. The rotating adjustment lever 100 is fixedly connected to the eccentric wheel, and the temperature of the storage compartment of the refrigeration device is preset by rotating the eccentric wheel. The gear corresponding to the preset temperature is displayed by the gear display device.

[0080] It can be understood that the display element 202 can be arranged in the storage room. When the user opens the door of the refrigeration equipment, the gear display of the display element 202 in the storage room can be directly observed; the display element 202 can also be installed on the outside of the box body, and the user can observe the gear display without opening the door of the refrigeration equipment.

[0081] The refrigeration equipment includes but is not limited to refrigerators, freezers, etc.

[0082] In summary, the present application cooperates with the display component 200 through the rotating adjustment rod 100, and the rotating adjustment rod 100 is rotated to adjust the gear position of the temperature control system 300, which is connected to the branch unit corresponding to the gear position. The display element 202 on the branch unit is turned on to display the gear position so that the user can determine the current gear position, and it can ensure that one and only one group of branch units are in a connected state.

[0083] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method 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 embodiments that can be understood by those skilled in the art.

[0084] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the utility model and are not intended to limit the protection scope of the utility model. Any equivalent embodiments or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A gear position display device, characterized in that: include: Rotating the adjustment rod (100) to adjust the gear position of the temperature control system (300); The display assembly (200) comprises two groups of first branch units (201) connected in parallel, a display element (202) located on the first branch units (201), and a first connecting member (203) for controlling the on and off of the first branch units (201), wherein the first connecting members (203) are arranged at intervals along the axial direction of the rotating adjustment rod (100), and the central axes L1 of the two first connecting members (203) are parallel to each other, and when the rotating adjustment rod (100) is rotated to a first angle, one and only one of the first branch units (201) is in a connected state.

2. The gear position display device according to claim 1, characterized in that: The first branch unit (201) comprises a first contact member (201a) and a second contact member (201b); when the first connecting member (203) is in contact with the first contact member (201a) and the second contact member (201b) at the same time, the first branch unit (201) is in a connected state.

3. The gear position display device according to claim 2, characterized in that: The first connecting member (203) comprises a fixing ring (203a) sleeved on the rotating adjustment rod (100), a first conductive member (203b) and a second conductive member (203c) arranged at intervals on the fixing ring (203a), the first conductive member (203b) only contacts the first contact member (201a) and / or the second conductive member (203c) only contacts the second contact member (201b), and the first conductive member (203b) and the second conductive member (203c) on the two fixing rings (203a) are in opposite positions.

4. The gear position display device according to claim 3, characterized in that: The connecting line between the first conductive member (203b) and the second conductive member (203c) coincides with the central axis L1, and the first conductive member (203b) and the second contact member (201b) are mutually offset in the axial direction of the rotating adjustment rod (100) and / or the second conductive member (203c) and the first contact member (201a) are mutually offset in the axial direction of the rotating adjustment rod (100).

5. The gear position display device according to claim 4, characterized in that: The first conductive member (203b) and the second conductive member (203c) are respectively located on two axial sides of the fixing ring (203a); Or, the first conductive member (203b) is located on one side of the axial direction of the fixing ring (203a); Alternatively, the second conductive member (203c) is located on one axial side of the fixing ring (203a).

6. The gear position display device according to claim 3, characterized in that: The first contact member (201a) has a first arc surface, and the second contact member (201b) has a second arc surface. The first arc surface and the second arc surface are cocircular and coincide with the center of the fixed ring (203a). The length of the first conductive member (203b) extending radially along the rotating adjustment rod (100) is the difference between the radius of the first arc surface and the radius of the fixed ring (203a). The second conductive member (203c) has the same length as the first conductive member (203b).

7. The gear position display device according to claim 1, characterized in that: The display component (200) further comprises a second branch unit (204), and a second connecting member (205) for controlling the on and off of the second branch unit (204), and a first angle is formed between a central axis L2 of the second connecting member (205) and a central axis L1 of an adjacent first connecting member (203).

8. The gear position display device according to claim 7, characterized in that: A plurality of groups of second branch units (204) are arranged at intervals, and a second angle is formed between the central axes L2 of two adjacent second connecting members (205), and the first angle is equal to the second angle.

9. The gear position display device according to claim 8, characterized in that: When the rotating adjustment rod (100) is rotated to a second angle, one and only one of the second branch units (204) is in a connected state.

10. A refrigeration device, characterized in that: It comprises a temperature control system (300) and a gear position display device according to any one of claims 1 to 9 connected to the temperature control system (300).

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